./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0f3b69410d84404822a26401b92e2c10c65259dbe30a6f843124f3a9a51940ad --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:46:51,950 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:46:52,074 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-24 21:46:52,078 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:46:52,085 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:46:52,126 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:46:52,128 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:46:52,128 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:46:52,129 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:46:52,134 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:46:52,134 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:46:52,135 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:46:52,135 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:46:52,137 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:46:52,138 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:46:52,138 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:46:52,138 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:46:52,139 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:46:52,139 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:46:52,140 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:46:52,140 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 21:46:52,141 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 21:46:52,141 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 21:46:52,141 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:46:52,142 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 21:46:52,142 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 21:46:52,142 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:46:52,143 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:46:52,144 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:46:52,144 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:46:52,145 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:46:52,146 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:46:52,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:46:52,146 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:46:52,146 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:46:52,147 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 21:46:52,147 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 21:46:52,147 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:46:52,147 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:46:52,147 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:46:52,148 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:46:52,149 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_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f3b69410d84404822a26401b92e2c10c65259dbe30a6f843124f3a9a51940ad [2023-11-24 21:46:52,419 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:46:52,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:46:52,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:46:52,450 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:46:52,450 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:46:52,452 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i [2023-11-24 21:46:55,661 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:46:56,092 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:46:56,092 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i [2023-11-24 21:46:56,112 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/bin/uautomizer-verify-NlZe1sFDwI/data/03236110b/989ab044a8fc4d78819747350e6782e2/FLAG5aee5bc38 [2023-11-24 21:46:56,130 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/bin/uautomizer-verify-NlZe1sFDwI/data/03236110b/989ab044a8fc4d78819747350e6782e2 [2023-11-24 21:46:56,133 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:46:56,135 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:46:56,136 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:46:56,136 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:46:56,148 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:46:56,148 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:46:56" (1/1) ... [2023-11-24 21:46:56,150 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50464929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:46:56, skipping insertion in model container [2023-11-24 21:46:56,150 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:46:56" (1/1) ... [2023-11-24 21:46:56,242 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:46:57,052 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:46:57,067 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 21:46:57,068 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@497c9405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:46:57, skipping insertion in model container [2023-11-24 21:46:57,069 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:46:57,069 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-24 21:46:57,072 INFO L158 Benchmark]: Toolchain (without parser) took 935.59ms. Allocated memory is still 197.1MB. Free memory was 147.1MB in the beginning and 123.6MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-24 21:46:57,073 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 138.4MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 21:46:57,074 INFO L158 Benchmark]: CACSL2BoogieTranslator took 932.93ms. Allocated memory is still 197.1MB. Free memory was 147.1MB in the beginning and 123.6MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-24 21:46:57,076 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 138.4MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 932.93ms. Allocated memory is still 197.1MB. Free memory was 147.1MB in the beginning and 123.6MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 737]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0f3b69410d84404822a26401b92e2c10c65259dbe30a6f843124f3a9a51940ad --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:46:59,679 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:46:59,820 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-24 21:46:59,829 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:46:59,830 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:46:59,878 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:46:59,879 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:46:59,879 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:46:59,880 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:46:59,885 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:46:59,886 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:46:59,886 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:46:59,887 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:46:59,889 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:46:59,889 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:46:59,890 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:46:59,890 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:46:59,891 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:46:59,891 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:46:59,892 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:46:59,893 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 21:46:59,893 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 21:46:59,894 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 21:46:59,894 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:46:59,895 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 21:46:59,895 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 21:46:59,895 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 21:46:59,896 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 21:46:59,896 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:46:59,897 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:46:59,899 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:46:59,899 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:46:59,899 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:46:59,899 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:46:59,900 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:46:59,900 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:46:59,901 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:46:59,901 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-24 21:46:59,902 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 21:46:59,902 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:46:59,902 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:46:59,903 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:46:59,903 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:46:59,903 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-24 21:46:59,904 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_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f3b69410d84404822a26401b92e2c10c65259dbe30a6f843124f3a9a51940ad [2023-11-24 21:47:00,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:47:00,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:47:00,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:47:00,301 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:47:00,302 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:47:00,303 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i [2023-11-24 21:47:03,432 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:47:03,925 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:47:03,926 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i [2023-11-24 21:47:03,949 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/bin/uautomizer-verify-NlZe1sFDwI/data/99031c7d6/ea3bc57130d546d18c3d544d88bef4c6/FLAGf49c07c3b [2023-11-24 21:47:03,968 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/bin/uautomizer-verify-NlZe1sFDwI/data/99031c7d6/ea3bc57130d546d18c3d544d88bef4c6 [2023-11-24 21:47:03,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:47:03,972 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:47:03,974 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:47:03,974 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:47:03,984 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:47:03,985 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:47:03" (1/1) ... [2023-11-24 21:47:03,986 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d8f57ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:47:03, skipping insertion in model container [2023-11-24 21:47:03,987 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:47:03" (1/1) ... [2023-11-24 21:47:04,078 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:47:04,938 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:47:04,950 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-24 21:47:04,968 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:47:05,069 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:47:05,074 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 21:47:05,166 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:47:05,203 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 21:47:05,211 INFO L206 MainTranslator]: Completed translation [2023-11-24 21:47:05,212 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:47:05 WrapperNode [2023-11-24 21:47:05,212 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:47:05,213 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 21:47:05,213 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 21:47:05,213 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 21:47:05,240 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:47:05" (1/1) ... [2023-11-24 21:47:05,281 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:47:05" (1/1) ... [2023-11-24 21:47:05,365 INFO L138 Inliner]: procedures = 180, calls = 441, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1585 [2023-11-24 21:47:05,365 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 21:47:05,366 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 21:47:05,366 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 21:47:05,366 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 21:47:05,379 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:47:05" (1/1) ... [2023-11-24 21:47:05,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:47:05" (1/1) ... [2023-11-24 21:47:05,421 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:47:05" (1/1) ... [2023-11-24 21:47:05,567 INFO L175 MemorySlicer]: Split 407 memory accesses to 5 slices as follows [5, 2, 24, 5, 371]. 91 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 2, 0, 0, 0]. The 93 writes are split as follows [1, 0, 1, 1, 90]. [2023-11-24 21:47:05,567 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:47:05" (1/1) ... [2023-11-24 21:47:05,568 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:47:05" (1/1) ... [2023-11-24 21:47:05,657 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:47:05" (1/1) ... [2023-11-24 21:47:05,684 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:47:05" (1/1) ... [2023-11-24 21:47:05,691 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:47:05" (1/1) ... [2023-11-24 21:47:05,701 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:47:05" (1/1) ... [2023-11-24 21:47:05,718 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 21:47:05,719 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 21:47:05,719 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 21:47:05,719 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 21:47:05,720 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:47:05" (1/1) ... [2023-11-24 21:47:05,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:47:05,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:47:05,755 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-24 21:47:05,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-24 21:47:05,825 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-24 21:47:05,825 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-24 21:47:05,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-24 21:47:05,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-24 21:47:05,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-24 21:47:05,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-24 21:47:05,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-11-24 21:47:05,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-24 21:47:05,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-24 21:47:05,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-24 21:47:05,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-24 21:47:05,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-11-24 21:47:05,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 21:47:05,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 21:47:05,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-24 21:47:05,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-24 21:47:05,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-24 21:47:05,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-24 21:47:05,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2023-11-24 21:47:05,832 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-24 21:47:05,832 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-24 21:47:05,833 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-24 21:47:05,833 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-24 21:47:05,834 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2023-11-24 21:47:05,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 21:47:05,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 21:47:05,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-24 21:47:05,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-24 21:47:05,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-24 21:47:05,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-24 21:47:05,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-24 21:47:05,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 21:47:05,836 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-24 21:47:05,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-24 21:47:05,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-24 21:47:05,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-24 21:47:05,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-24 21:47:05,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-24 21:47:05,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 21:47:05,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-24 21:47:05,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-24 21:47:05,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-24 21:47:05,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-24 21:47:05,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-11-24 21:47:05,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-24 21:47:05,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-24 21:47:05,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-24 21:47:05,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-24 21:47:05,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-11-24 21:47:05,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 21:47:05,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 21:47:06,130 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 21:47:06,132 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 21:47:06,184 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:47:06,232 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:47:06,255 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:47:06,277 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:47:06,299 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:47:13,651 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 21:47:13,966 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 21:47:13,966 INFO L309 CfgBuilder]: Removed 92 assume(true) statements. [2023-11-24 21:47:13,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:47:13 BoogieIcfgContainer [2023-11-24 21:47:13,967 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 21:47:13,995 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 21:47:13,995 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 21:47:13,998 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 21:47:13,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 09:47:03" (1/3) ... [2023-11-24 21:47:13,999 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7774e4a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:47:13, skipping insertion in model container [2023-11-24 21:47:13,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:47:05" (2/3) ... [2023-11-24 21:47:14,002 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7774e4a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:47:14, skipping insertion in model container [2023-11-24 21:47:14,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:47:13" (3/3) ... [2023-11-24 21:47:14,004 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test5-2.i [2023-11-24 21:47:14,023 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 21:47:14,024 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 833 error locations. [2023-11-24 21:47:14,108 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 21:47:14,116 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;@5a3c7cda, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 21:47:14,116 INFO L358 AbstractCegarLoop]: Starting to check reachability of 833 error locations. [2023-11-24 21:47:14,130 INFO L276 IsEmpty]: Start isEmpty. Operand has 1507 states, 663 states have (on average 2.5279034690799396) internal successors, (1676), 1497 states have internal predecessors, (1676), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-24 21:47:14,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 21:47:14,137 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:47:14,137 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-24 21:47:14,138 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-24 21:47:14,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:47:14,145 INFO L85 PathProgramCache]: Analyzing trace with hash 79665205, now seen corresponding path program 1 times [2023-11-24 21:47:14,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:47:14,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2052602311] [2023-11-24 21:47:14,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:47:14,160 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 21:47:14,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:47:14,167 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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 21:47:14,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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 21:47:14,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:47:14,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 21:47:14,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:47:14,487 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 21:47:14,487 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:47:14,488 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:47:14,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2052602311] [2023-11-24 21:47:14,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2052602311] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:47:14,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:47:14,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:47:14,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833092090] [2023-11-24 21:47:14,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:47:14,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 21:47:14,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:47:14,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 21:47:14,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 21:47:14,540 INFO L87 Difference]: Start difference. First operand has 1507 states, 663 states have (on average 2.5279034690799396) internal successors, (1676), 1497 states have internal predecessors, (1676), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:47:15,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:47:15,826 INFO L93 Difference]: Finished difference Result 1487 states and 1580 transitions. [2023-11-24 21:47:15,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 21:47:15,830 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-24 21:47:15,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:47:15,858 INFO L225 Difference]: With dead ends: 1487 [2023-11-24 21:47:15,859 INFO L226 Difference]: Without dead ends: 1486 [2023-11-24 21:47:15,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 3 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 21:47:15,864 INFO L413 NwaCegarLoop]: 1418 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1418 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-24 21:47:15,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1418 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-24 21:47:15,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1486 states. [2023-11-24 21:47:15,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1486 to 1486. [2023-11-24 21:47:15,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 654 states have (on average 2.3776758409785934) internal successors, (1555), 1476 states have internal predecessors, (1555), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-24 21:47:15,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 1579 transitions. [2023-11-24 21:47:16,009 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 1579 transitions. Word has length 4 [2023-11-24 21:47:16,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:47:16,010 INFO L495 AbstractCegarLoop]: Abstraction has 1486 states and 1579 transitions. [2023-11-24 21:47:16,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:47:16,010 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 1579 transitions. [2023-11-24 21:47:16,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 21:47:16,011 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:47:16,011 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-24 21:47:16,016 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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)] Ended with exit code 0 [2023-11-24 21:47:16,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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 21:47:16,212 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-24 21:47:16,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:47:16,213 INFO L85 PathProgramCache]: Analyzing trace with hash 79665267, now seen corresponding path program 1 times [2023-11-24 21:47:16,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:47:16,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1120088492] [2023-11-24 21:47:16,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:47:16,214 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 21:47:16,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:47:16,216 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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 21:47:16,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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 21:47:16,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:47:16,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:47:16,430 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:47:16,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 7 [2023-11-24 21:47:16,497 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 21:47:16,498 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:47:16,498 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:47:16,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1120088492] [2023-11-24 21:47:16,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1120088492] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:47:16,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:47:16,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:47:16,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177829275] [2023-11-24 21:47:16,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:47:16,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:47:16,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:47:16,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:47:16,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:47:16,502 INFO L87 Difference]: Start difference. First operand 1486 states and 1579 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:47:20,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:47:20,415 INFO L93 Difference]: Finished difference Result 1715 states and 1852 transitions. [2023-11-24 21:47:20,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:47:20,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-24 21:47:20,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:47:20,425 INFO L225 Difference]: With dead ends: 1715 [2023-11-24 21:47:20,425 INFO L226 Difference]: Without dead ends: 1715 [2023-11-24 21:47:20,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:47:20,427 INFO L413 NwaCegarLoop]: 957 mSDtfsCounter, 1235 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 1279 SdHoareTripleChecker+Invalid, 1132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-24 21:47:20,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1246 Valid, 1279 Invalid, 1132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1030 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-24 21:47:20,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2023-11-24 21:47:20,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 1461. [2023-11-24 21:47:20,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 720 states have (on average 2.2069444444444444) internal successors, (1589), 1451 states have internal predecessors, (1589), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-24 21:47:20,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 1613 transitions. [2023-11-24 21:47:20,473 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 1613 transitions. Word has length 4 [2023-11-24 21:47:20,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:47:20,473 INFO L495 AbstractCegarLoop]: Abstraction has 1461 states and 1613 transitions. [2023-11-24 21:47:20,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:47:20,474 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 1613 transitions. [2023-11-24 21:47:20,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 21:47:20,474 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:47:20,474 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-24 21:47:20,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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)] Forceful destruction successful, exit code 0 [2023-11-24 21:47:20,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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 21:47:20,689 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-24 21:47:20,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:47:20,690 INFO L85 PathProgramCache]: Analyzing trace with hash 79665268, now seen corresponding path program 1 times [2023-11-24 21:47:20,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:47:20,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1677949012] [2023-11-24 21:47:20,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:47:20,691 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:47:20,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:47:20,692 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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 21:47:20,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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 21:47:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:47:20,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 21:47:20,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:47:20,885 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2023-11-24 21:47:20,908 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 21:47:20,908 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:47:20,909 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:47:20,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1677949012] [2023-11-24 21:47:20,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1677949012] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:47:20,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:47:20,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:47:20,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285563057] [2023-11-24 21:47:20,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:47:20,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:47:20,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:47:20,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:47:20,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:47:20,911 INFO L87 Difference]: Start difference. First operand 1461 states and 1613 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:47:26,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:47:26,786 INFO L93 Difference]: Finished difference Result 1930 states and 2133 transitions. [2023-11-24 21:47:26,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:47:26,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-24 21:47:26,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:47:26,798 INFO L225 Difference]: With dead ends: 1930 [2023-11-24 21:47:26,799 INFO L226 Difference]: Without dead ends: 1930 [2023-11-24 21:47:26,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:47:26,801 INFO L413 NwaCegarLoop]: 1285 mSDtfsCounter, 673 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 1864 SdHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-11-24 21:47:26,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 1864 Invalid, 1192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1169 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-11-24 21:47:26,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1930 states. [2023-11-24 21:47:26,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1930 to 1584. [2023-11-24 21:47:26,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 853 states have (on average 2.182883939038687) internal successors, (1862), 1574 states have internal predecessors, (1862), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-24 21:47:26,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 1886 transitions. [2023-11-24 21:47:26,859 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 1886 transitions. Word has length 4 [2023-11-24 21:47:26,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:47:26,860 INFO L495 AbstractCegarLoop]: Abstraction has 1584 states and 1886 transitions. [2023-11-24 21:47:26,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:47:26,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 1886 transitions. [2023-11-24 21:47:26,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 21:47:26,861 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:47:26,861 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-24 21:47:26,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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)] Forceful destruction successful, exit code 0 [2023-11-24 21:47:27,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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 21:47:27,064 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr640REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-24 21:47:27,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:47:27,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1823652708, now seen corresponding path program 1 times [2023-11-24 21:47:27,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:47:27,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1401845099] [2023-11-24 21:47:27,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:47:27,068 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 21:47:27,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:47:27,070 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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 21:47:27,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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 21:47:27,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:47:27,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 21:47:27,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:47:27,269 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 21:47:27,269 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:47:27,270 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:47:27,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1401845099] [2023-11-24 21:47:27,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1401845099] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:47:27,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:47:27,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:47:27,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640349765] [2023-11-24 21:47:27,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:47:27,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:47:27,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:47:27,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:47:27,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:47:27,278 INFO L87 Difference]: Start difference. First operand 1584 states and 1886 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:47:29,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:47:29,690 INFO L93 Difference]: Finished difference Result 2969 states and 3562 transitions. [2023-11-24 21:47:29,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:47:29,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-24 21:47:29,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:47:29,709 INFO L225 Difference]: With dead ends: 2969 [2023-11-24 21:47:29,710 INFO L226 Difference]: Without dead ends: 2969 [2023-11-24 21:47:29,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:47:29,711 INFO L413 NwaCegarLoop]: 1495 mSDtfsCounter, 1243 mSDsluCounter, 1307 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1254 SdHoareTripleChecker+Valid, 2802 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-24 21:47:29,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1254 Valid, 2802 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-24 21:47:29,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2969 states. [2023-11-24 21:47:29,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2969 to 1586. [2023-11-24 21:47:29,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 855 states have (on average 2.1801169590643275) internal successors, (1864), 1576 states have internal predecessors, (1864), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-24 21:47:29,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 1888 transitions. [2023-11-24 21:47:29,786 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 1888 transitions. Word has length 5 [2023-11-24 21:47:29,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:47:29,786 INFO L495 AbstractCegarLoop]: Abstraction has 1586 states and 1888 transitions. [2023-11-24 21:47:29,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:47:29,787 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 1888 transitions. [2023-11-24 21:47:29,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 21:47:29,788 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:47:29,788 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:47:29,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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)] Ended with exit code 0 [2023-11-24 21:47:29,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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 21:47:29,990 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-24 21:47:29,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:47:29,990 INFO L85 PathProgramCache]: Analyzing trace with hash -32935171, now seen corresponding path program 1 times [2023-11-24 21:47:29,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:47:29,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [240139653] [2023-11-24 21:47:29,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:47:29,991 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 21:47:29,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:47:29,992 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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 21:47:30,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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 21:47:30,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:47:30,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 21:47:30,270 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:47:30,283 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 21:47:30,284 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:47:30,284 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:47:30,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [240139653] [2023-11-24 21:47:30,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [240139653] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:47:30,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:47:30,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:47:30,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321605159] [2023-11-24 21:47:30,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:47:30,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:47:30,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:47:30,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:47:30,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:47:30,292 INFO L87 Difference]: Start difference. First operand 1586 states and 1888 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:47:31,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:47:31,760 INFO L93 Difference]: Finished difference Result 1547 states and 1848 transitions. [2023-11-24 21:47:31,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:47:31,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-24 21:47:31,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:47:31,771 INFO L225 Difference]: With dead ends: 1547 [2023-11-24 21:47:31,772 INFO L226 Difference]: Without dead ends: 1547 [2023-11-24 21:47:31,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:47:31,773 INFO L413 NwaCegarLoop]: 1268 mSDtfsCounter, 70 mSDsluCounter, 1219 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 2487 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-24 21:47:31,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 2487 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-24 21:47:31,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2023-11-24 21:47:31,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1547. [2023-11-24 21:47:31,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 840 states have (on average 2.1714285714285713) internal successors, (1824), 1537 states have internal predecessors, (1824), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-24 21:47:31,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 1848 transitions. [2023-11-24 21:47:31,814 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 1848 transitions. Word has length 10 [2023-11-24 21:47:31,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:47:31,814 INFO L495 AbstractCegarLoop]: Abstraction has 1547 states and 1848 transitions. [2023-11-24 21:47:31,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:47:31,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 1848 transitions. [2023-11-24 21:47:31,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 21:47:31,815 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:47:31,815 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:47:31,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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)] Ended with exit code 0 [2023-11-24 21:47:32,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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 21:47:32,018 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-24 21:47:32,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:47:32,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1585930985, now seen corresponding path program 1 times [2023-11-24 21:47:32,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:47:32,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [422565163] [2023-11-24 21:47:32,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:47:32,020 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 21:47:32,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:47:32,021 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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 21:47:32,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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 21:47:32,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:47:32,259 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:47:32,262 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:47:32,286 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 21:47:32,286 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:47:32,287 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:47:32,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [422565163] [2023-11-24 21:47:32,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [422565163] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:47:32,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:47:32,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 21:47:32,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739475721] [2023-11-24 21:47:32,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:47:32,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:47:32,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:47:32,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:47:32,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:47:32,289 INFO L87 Difference]: Start difference. First operand 1547 states and 1848 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:47:34,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:47:34,231 INFO L93 Difference]: Finished difference Result 1533 states and 1827 transitions. [2023-11-24 21:47:34,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:47:34,243 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-24 21:47:34,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:47:34,252 INFO L225 Difference]: With dead ends: 1533 [2023-11-24 21:47:34,262 INFO L226 Difference]: Without dead ends: 1533 [2023-11-24 21:47:34,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 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 21:47:34,265 INFO L413 NwaCegarLoop]: 1237 mSDtfsCounter, 58 mSDsluCounter, 2450 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 3687 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-24 21:47:34,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 3687 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-24 21:47:34,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2023-11-24 21:47:34,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1532. [2023-11-24 21:47:34,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1532 states, 839 states have (on average 2.1477949940405243) internal successors, (1802), 1522 states have internal predecessors, (1802), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-24 21:47:34,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 1826 transitions. [2023-11-24 21:47:34,307 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 1826 transitions. Word has length 12 [2023-11-24 21:47:34,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:47:34,307 INFO L495 AbstractCegarLoop]: Abstraction has 1532 states and 1826 transitions. [2023-11-24 21:47:34,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:47:34,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 1826 transitions. [2023-11-24 21:47:34,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-24 21:47:34,309 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:47:34,310 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] [2023-11-24 21:47:34,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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)] Ended with exit code 0 [2023-11-24 21:47:34,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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 21:47:34,513 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-24 21:47:34,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:47:34,513 INFO L85 PathProgramCache]: Analyzing trace with hash -993697339, now seen corresponding path program 1 times [2023-11-24 21:47:34,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:47:34,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1398922713] [2023-11-24 21:47:34,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:47:34,514 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 21:47:34,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:47:34,516 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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 21:47:34,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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 21:47:34,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:47:34,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 21:47:34,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:47:34,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 7 [2023-11-24 21:47:34,839 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 21:47:34,839 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:47:34,840 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:47:34,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1398922713] [2023-11-24 21:47:34,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1398922713] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:47:34,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:47:34,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:47:34,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153101669] [2023-11-24 21:47:34,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:47:34,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:47:34,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:47:34,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:47:34,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:47:34,843 INFO L87 Difference]: Start difference. First operand 1532 states and 1826 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:47:39,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:47:39,585 INFO L93 Difference]: Finished difference Result 1783 states and 2062 transitions. [2023-11-24 21:47:39,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:47:39,586 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-11-24 21:47:39,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:47:39,596 INFO L225 Difference]: With dead ends: 1783 [2023-11-24 21:47:39,596 INFO L226 Difference]: Without dead ends: 1783 [2023-11-24 21:47:39,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 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 21:47:39,597 INFO L413 NwaCegarLoop]: 717 mSDtfsCounter, 1170 mSDsluCounter, 887 mSDsCounter, 0 mSdLazyCounter, 1756 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1181 SdHoareTripleChecker+Valid, 1604 SdHoareTripleChecker+Invalid, 1770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-11-24 21:47:39,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1181 Valid, 1604 Invalid, 1770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1756 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-11-24 21:47:39,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1783 states. [2023-11-24 21:47:39,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1783 to 1528. [2023-11-24 21:47:39,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1528 states, 839 states have (on average 2.143027413587604) internal successors, (1798), 1518 states have internal predecessors, (1798), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-24 21:47:39,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1528 states to 1528 states and 1822 transitions. [2023-11-24 21:47:39,637 INFO L78 Accepts]: Start accepts. Automaton has 1528 states and 1822 transitions. Word has length 26 [2023-11-24 21:47:39,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:47:39,638 INFO L495 AbstractCegarLoop]: Abstraction has 1528 states and 1822 transitions. [2023-11-24 21:47:39,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:47:39,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1528 states and 1822 transitions. [2023-11-24 21:47:39,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-24 21:47:39,639 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:47:39,639 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] [2023-11-24 21:47:39,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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 21:47:39,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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 21:47:39,843 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-24 21:47:39,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:47:39,843 INFO L85 PathProgramCache]: Analyzing trace with hash -993697338, now seen corresponding path program 1 times [2023-11-24 21:47:39,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:47:39,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1785625075] [2023-11-24 21:47:39,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:47:39,844 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 21:47:39,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:47:39,847 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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 21:47:39,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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 21:47:40,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:47:40,090 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 21:47:40,094 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:47:40,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2023-11-24 21:47:40,355 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 21:47:40,356 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:47:40,356 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:47:40,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1785625075] [2023-11-24 21:47:40,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1785625075] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:47:40,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:47:40,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:47:40,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722484644] [2023-11-24 21:47:40,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:47:40,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:47:40,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:47:40,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:47:40,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:47:40,358 INFO L87 Difference]: Start difference. First operand 1528 states and 1822 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:47:47,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:47:47,019 INFO L93 Difference]: Finished difference Result 1871 states and 2066 transitions. [2023-11-24 21:47:47,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:47:47,021 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-11-24 21:47:47,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:47:47,030 INFO L225 Difference]: With dead ends: 1871 [2023-11-24 21:47:47,030 INFO L226 Difference]: Without dead ends: 1871 [2023-11-24 21:47:47,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 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 21:47:47,031 INFO L413 NwaCegarLoop]: 1043 mSDtfsCounter, 610 mSDsluCounter, 1172 mSDsCounter, 0 mSdLazyCounter, 1873 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 615 SdHoareTripleChecker+Valid, 2215 SdHoareTripleChecker+Invalid, 1876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-11-24 21:47:47,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [615 Valid, 2215 Invalid, 1876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1873 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2023-11-24 21:47:47,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1871 states. [2023-11-24 21:47:47,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1871 to 1524. [2023-11-24 21:47:47,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1524 states, 839 states have (on average 2.138259833134684) internal successors, (1794), 1514 states have internal predecessors, (1794), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-24 21:47:47,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1524 states to 1524 states and 1818 transitions. [2023-11-24 21:47:47,070 INFO L78 Accepts]: Start accepts. Automaton has 1524 states and 1818 transitions. Word has length 26 [2023-11-24 21:47:47,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:47:47,070 INFO L495 AbstractCegarLoop]: Abstraction has 1524 states and 1818 transitions. [2023-11-24 21:47:47,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:47:47,071 INFO L276 IsEmpty]: Start isEmpty. Operand 1524 states and 1818 transitions. [2023-11-24 21:47:47,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-24 21:47:47,072 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:47:47,072 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] [2023-11-24 21:47:47,080 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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)] Ended with exit code 0 [2023-11-24 21:47:47,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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 21:47:47,276 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-24 21:47:47,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:47:47,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1872897729, now seen corresponding path program 1 times [2023-11-24 21:47:47,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:47:47,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1697941299] [2023-11-24 21:47:47,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:47:47,277 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 21:47:47,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:47:47,278 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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 21:47:47,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8549b03a-3e8d-44ff-b1c9-068f3b0ca3d4/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 21:47:47,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:47:47,576 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:47:47,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:47:47,638 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 21:47:47,639 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:47:47,639 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:47:47,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1697941299] [2023-11-24 21:47:47,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1697941299] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:47:47,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:47:47,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 21:47:47,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905585278] [2023-11-24 21:47:47,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:47:47,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:47:47,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:47:47,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:47:47,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:47:47,642 INFO L87 Difference]: Start difference. First operand 1524 states and 1818 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)