./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-1.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_be58ff56-70fe-4627-b360-29676fb036d8/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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_be58ff56-70fe-4627-b360-29676fb036d8/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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_be58ff56-70fe-4627-b360-29676fb036d8/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 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:57:35,897 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:57:36,018 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-24 21:57:36,029 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:57:36,030 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:57:36,075 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:57:36,077 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:57:36,077 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:57:36,078 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:57:36,086 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:57:36,086 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:57:36,088 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:57:36,110 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:57:36,111 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:57:36,111 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:57:36,112 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:57:36,112 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:57:36,112 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:57:36,113 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:57:36,113 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:57:36,113 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 21:57:36,115 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 21:57:36,115 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 21:57:36,116 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:57:36,116 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 21:57:36,117 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 21:57:36,117 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:57:36,117 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:57:36,118 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:57:36,118 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:57:36,119 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:57:36,119 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:57:36,120 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:57:36,120 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:57:36,120 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:57:36,120 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 21:57:36,121 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 21:57:36,121 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:57:36,121 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:57:36,121 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:57:36,122 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:57:36,122 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_be58ff56-70fe-4627-b360-29676fb036d8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f [2023-11-24 21:57:36,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:57:36,436 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:57:36,439 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:57:36,440 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:57:36,441 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:57:36,442 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-1.i [2023-11-24 21:57:39,586 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:57:39,985 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:57:39,986 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-1.i [2023-11-24 21:57:40,005 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/bin/uautomizer-verify-NlZe1sFDwI/data/c5ee53f93/8cb11c25f2cd4f6cbe90b267552daac8/FLAG52323166c [2023-11-24 21:57:40,021 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/bin/uautomizer-verify-NlZe1sFDwI/data/c5ee53f93/8cb11c25f2cd4f6cbe90b267552daac8 [2023-11-24 21:57:40,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:57:40,026 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:57:40,027 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:57:40,027 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:57:40,033 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:57:40,034 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:57:40" (1/1) ... [2023-11-24 21:57:40,035 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e373476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:57:40, skipping insertion in model container [2023-11-24 21:57:40,036 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:57:40" (1/1) ... [2023-11-24 21:57:40,110 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:57:40,685 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:57:40,702 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 21:57:40,704 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1199ce33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:57:40, skipping insertion in model container [2023-11-24 21:57:40,704 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:57:40,705 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-24 21:57:40,707 INFO L158 Benchmark]: Toolchain (without parser) took 680.07ms. Allocated memory is still 148.9MB. Free memory was 101.1MB in the beginning and 81.8MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-24 21:57:40,708 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 148.9MB. Free memory is still 121.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 21:57:40,709 INFO L158 Benchmark]: CACSL2BoogieTranslator took 677.38ms. Allocated memory is still 148.9MB. Free memory was 101.1MB in the beginning and 81.8MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-24 21:57:40,711 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 148.9MB. Free memory is still 121.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 677.38ms. Allocated memory is still 148.9MB. Free memory was 101.1MB in the beginning and 81.8MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 739]: 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_be58ff56-70fe-4627-b360-29676fb036d8/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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_be58ff56-70fe-4627-b360-29676fb036d8/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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_be58ff56-70fe-4627-b360-29676fb036d8/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 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:57:43,316 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:57:43,390 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-24 21:57:43,404 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:57:43,404 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:57:43,439 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:57:43,444 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:57:43,445 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:57:43,446 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:57:43,451 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:57:43,452 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:57:43,452 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:57:43,453 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:57:43,455 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:57:43,456 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:57:43,457 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:57:43,457 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:57:43,458 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:57:43,458 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:57:43,460 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:57:43,460 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 21:57:43,461 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 21:57:43,461 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 21:57:43,462 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:57:43,463 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 21:57:43,463 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 21:57:43,464 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 21:57:43,464 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 21:57:43,465 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:57:43,465 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:57:43,467 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:57:43,468 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:57:43,468 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:57:43,468 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:57:43,469 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:57:43,469 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:57:43,470 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:57:43,471 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-24 21:57:43,471 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 21:57:43,472 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:57:43,472 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:57:43,472 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:57:43,473 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:57:43,473 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-24 21:57:43,474 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_be58ff56-70fe-4627-b360-29676fb036d8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f [2023-11-24 21:57:43,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:57:43,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:57:43,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:57:43,986 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:57:43,986 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:57:43,988 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-1.i [2023-11-24 21:57:47,093 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:57:47,536 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:57:47,539 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-1.i [2023-11-24 21:57:47,576 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/bin/uautomizer-verify-NlZe1sFDwI/data/a6fd2bffc/028bf17c58e84080a74f499275fcea1e/FLAGd6464c131 [2023-11-24 21:57:47,596 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/bin/uautomizer-verify-NlZe1sFDwI/data/a6fd2bffc/028bf17c58e84080a74f499275fcea1e [2023-11-24 21:57:47,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:57:47,606 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:57:47,610 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:57:47,611 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:57:47,616 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:57:47,619 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:57:47" (1/1) ... [2023-11-24 21:57:47,620 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67fd4795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:57:47, skipping insertion in model container [2023-11-24 21:57:47,620 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:57:47" (1/1) ... [2023-11-24 21:57:47,706 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:57:48,458 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:57:48,472 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-24 21:57:48,487 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:57:48,586 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:57:48,591 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 21:57:48,717 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:57:48,794 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 21:57:48,802 INFO L206 MainTranslator]: Completed translation [2023-11-24 21:57:48,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:57:48 WrapperNode [2023-11-24 21:57:48,803 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:57:48,804 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 21:57:48,805 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 21:57:48,805 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 21:57:48,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:57:48" (1/1) ... [2023-11-24 21:57:48,870 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:57:48" (1/1) ... [2023-11-24 21:57:48,966 INFO L138 Inliner]: procedures = 180, calls = 282, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1031 [2023-11-24 21:57:48,967 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 21:57:48,968 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 21:57:48,968 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 21:57:48,968 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 21:57:48,981 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:57:48" (1/1) ... [2023-11-24 21:57:48,981 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:57:48" (1/1) ... [2023-11-24 21:57:48,990 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:57:48" (1/1) ... [2023-11-24 21:57:49,095 INFO L175 MemorySlicer]: Split 259 memory accesses to 4 slices as follows [2, 218, 5, 34]. 84 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 55 writes are split as follows [0, 50, 1, 4]. [2023-11-24 21:57:49,095 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:57:48" (1/1) ... [2023-11-24 21:57:49,095 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:57:48" (1/1) ... [2023-11-24 21:57:49,146 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:57:48" (1/1) ... [2023-11-24 21:57:49,157 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:57:48" (1/1) ... [2023-11-24 21:57:49,182 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:57:48" (1/1) ... [2023-11-24 21:57:49,189 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:57:48" (1/1) ... [2023-11-24 21:57:49,206 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 21:57:49,207 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 21:57:49,208 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 21:57:49,208 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 21:57:49,209 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:57:48" (1/1) ... [2023-11-24 21:57:49,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:57:49,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:57:49,246 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-24 21:57:49,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-24 21:57:49,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-24 21:57:49,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-24 21:57:49,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-24 21:57:49,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-24 21:57:49,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-24 21:57:49,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-24 21:57:49,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-24 21:57:49,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-24 21:57:49,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 21:57:49,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 21:57:49,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-24 21:57:49,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-24 21:57:49,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-24 21:57:49,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-24 21:57:49,297 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-24 21:57:49,298 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-24 21:57:49,298 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-24 21:57:49,299 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-24 21:57:49,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 21:57:49,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 21:57:49,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-24 21:57:49,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-24 21:57:49,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-24 21:57:49,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-24 21:57:49,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 21:57:49,302 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-24 21:57:49,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-24 21:57:49,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-24 21:57:49,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-24 21:57:49,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-24 21:57:49,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-24 21:57:49,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-24 21:57:49,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-24 21:57:49,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-24 21:57:49,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 21:57:49,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-24 21:57:49,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-24 21:57:49,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-24 21:57:49,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-24 21:57:49,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 21:57:49,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 21:57:49,607 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 21:57:49,609 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 21:57:49,631 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:57:49,718 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:57:49,754 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:57:49,791 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:57:55,447 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 21:57:55,711 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 21:57:55,711 INFO L309 CfgBuilder]: Removed 63 assume(true) statements. [2023-11-24 21:57:55,712 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:57:55 BoogieIcfgContainer [2023-11-24 21:57:55,712 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 21:57:55,715 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 21:57:55,715 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 21:57:55,719 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 21:57:55,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 09:57:47" (1/3) ... [2023-11-24 21:57:55,720 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@620e1c6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:57:55, skipping insertion in model container [2023-11-24 21:57:55,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:57:48" (2/3) ... [2023-11-24 21:57:55,722 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@620e1c6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:57:55, skipping insertion in model container [2023-11-24 21:57:55,722 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:57:55" (3/3) ... [2023-11-24 21:57:55,725 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_nondet_test3-1.i [2023-11-24 21:57:55,744 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 21:57:55,745 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 531 error locations. [2023-11-24 21:57:55,827 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 21:57:55,833 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;@539880b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 21:57:55,834 INFO L358 AbstractCegarLoop]: Starting to check reachability of 531 error locations. [2023-11-24 21:57:55,844 INFO L276 IsEmpty]: Start isEmpty. Operand has 964 states, 428 states have (on average 2.5257009345794392) internal successors, (1081), 957 states have internal predecessors, (1081), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-24 21:57:55,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-24 21:57:55,853 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:57:55,854 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-24 21:57:55,855 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr529ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-24 21:57:55,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:57:55,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1685664, now seen corresponding path program 1 times [2023-11-24 21:57:55,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:57:55,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1945558856] [2023-11-24 21:57:55,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:57:55,878 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 21:57:55,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:57:55,885 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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 21:57:55,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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 21:57:56,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:57:56,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 21:57:56,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:57:56,165 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_53| (_ BitVec 32))) (and (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_53| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_53|)))) is different from true [2023-11-24 21:57:56,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:57:56,166 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:57:56,168 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:57:56,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1945558856] [2023-11-24 21:57:56,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1945558856] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:57:56,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:57:56,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:57:56,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341258183] [2023-11-24 21:57:56,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:57:56,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:57:56,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:57:56,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:57:56,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-24 21:57:56,208 INFO L87 Difference]: Start difference. First operand has 964 states, 428 states have (on average 2.5257009345794392) internal successors, (1081), 957 states have internal predecessors, (1081), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:57:59,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:57:59,551 INFO L93 Difference]: Finished difference Result 1319 states and 1410 transitions. [2023-11-24 21:57:59,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:57:59,555 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-24 21:57:59,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:57:59,580 INFO L225 Difference]: With dead ends: 1319 [2023-11-24 21:57:59,581 INFO L226 Difference]: Without dead ends: 1317 [2023-11-24 21:57:59,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-24 21:57:59,586 INFO L413 NwaCegarLoop]: 759 mSDtfsCounter, 393 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 1228 SdHoareTripleChecker+Invalid, 2218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1411 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-24 21:57:59,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 1228 Invalid, 2218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 807 Invalid, 0 Unknown, 1411 Unchecked, 3.2s Time] [2023-11-24 21:57:59,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2023-11-24 21:57:59,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 953. [2023-11-24 21:57:59,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 953 states, 423 states have (on average 2.3640661938534278) internal successors, (1000), 946 states have internal predecessors, (1000), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-24 21:57:59,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 1010 transitions. [2023-11-24 21:57:59,687 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 1010 transitions. Word has length 3 [2023-11-24 21:57:59,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:57:59,688 INFO L495 AbstractCegarLoop]: Abstraction has 953 states and 1010 transitions. [2023-11-24 21:57:59,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:57:59,689 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 1010 transitions. [2023-11-24 21:57:59,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-24 21:57:59,689 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:57:59,689 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-24 21:57:59,693 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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 21:57:59,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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 21:57:59,892 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-24 21:57:59,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:57:59,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1684089, now seen corresponding path program 1 times [2023-11-24 21:57:59,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:57:59,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [982962079] [2023-11-24 21:57:59,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:57:59,894 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 21:57:59,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:57:59,895 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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 21:57:59,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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 21:58:00,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:58:00,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:58:00,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:58:00,063 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 21:58:00,084 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 21:58:00,084 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:58:00,085 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:58:00,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [982962079] [2023-11-24 21:58:00,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [982962079] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:58:00,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:58:00,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 21:58:00,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385767721] [2023-11-24 21:58:00,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:58:00,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:58:00,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:58:00,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:58:00,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:58:00,090 INFO L87 Difference]: Start difference. First operand 953 states and 1010 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:58:02,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:58:02,595 INFO L93 Difference]: Finished difference Result 963 states and 1020 transitions. [2023-11-24 21:58:02,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:58:02,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-24 21:58:02,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:58:02,603 INFO L225 Difference]: With dead ends: 963 [2023-11-24 21:58:02,603 INFO L226 Difference]: Without dead ends: 963 [2023-11-24 21:58:02,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:58:02,605 INFO L413 NwaCegarLoop]: 525 mSDtfsCounter, 889 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-24 21:58:02,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [894 Valid, 576 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-24 21:58:02,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2023-11-24 21:58:02,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 953. [2023-11-24 21:58:02,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 953 states, 432 states have (on average 2.3194444444444446) internal successors, (1002), 945 states have internal predecessors, (1002), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-24 21:58:02,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 1012 transitions. [2023-11-24 21:58:02,639 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 1012 transitions. Word has length 3 [2023-11-24 21:58:02,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:58:02,640 INFO L495 AbstractCegarLoop]: Abstraction has 953 states and 1012 transitions. [2023-11-24 21:58:02,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:58:02,640 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 1012 transitions. [2023-11-24 21:58:02,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-24 21:58:02,641 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:58:02,641 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-24 21:58:02,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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 21:58:02,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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 21:58:02,844 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-24 21:58:02,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:58:02,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1684090, now seen corresponding path program 1 times [2023-11-24 21:58:02,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:58:02,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [451393877] [2023-11-24 21:58:02,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:58:02,846 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 21:58:02,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:58:02,850 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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 21:58:02,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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 21:58:03,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:58:03,016 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 21:58:03,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:58:03,046 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 21:58:03,066 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 21:58:03,066 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:58:03,066 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:58:03,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [451393877] [2023-11-24 21:58:03,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [451393877] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:58:03,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:58:03,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 21:58:03,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950284809] [2023-11-24 21:58:03,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:58:03,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:58:03,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:58:03,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:58:03,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:58:03,069 INFO L87 Difference]: Start difference. First operand 953 states and 1012 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:58:07,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:58:07,447 INFO L93 Difference]: Finished difference Result 1317 states and 1409 transitions. [2023-11-24 21:58:07,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:58:07,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-24 21:58:07,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:58:07,456 INFO L225 Difference]: With dead ends: 1317 [2023-11-24 21:58:07,456 INFO L226 Difference]: Without dead ends: 1317 [2023-11-24 21:58:07,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:58:07,458 INFO L413 NwaCegarLoop]: 749 mSDtfsCounter, 392 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 1228 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-11-24 21:58:07,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 1228 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-11-24 21:58:07,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2023-11-24 21:58:07,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 1124. [2023-11-24 21:58:07,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 603 states have (on average 2.295190713101161) internal successors, (1384), 1115 states have internal predecessors, (1384), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-24 21:58:07,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1396 transitions. [2023-11-24 21:58:07,495 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1396 transitions. Word has length 3 [2023-11-24 21:58:07,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:58:07,496 INFO L495 AbstractCegarLoop]: Abstraction has 1124 states and 1396 transitions. [2023-11-24 21:58:07,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:58:07,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1396 transitions. [2023-11-24 21:58:07,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 21:58:07,497 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:58:07,497 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:58:07,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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 21:58:07,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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 21:58:07,699 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-24 21:58:07,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:58:07,700 INFO L85 PathProgramCache]: Analyzing trace with hash 514019011, now seen corresponding path program 1 times [2023-11-24 21:58:07,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:58:07,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2090920676] [2023-11-24 21:58:07,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:58:07,703 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 21:58:07,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:58:07,709 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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 21:58:07,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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 21:58:07,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:58:07,900 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 21:58:07,904 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:58:07,927 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 21:58:07,940 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 21:58:08,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 21:58:08,083 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-24 21:58:08,111 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-24 21:58:08,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-24 21:58:08,150 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 21:58:08,151 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:58:08,151 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:58:08,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2090920676] [2023-11-24 21:58:08,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2090920676] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:58:08,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:58:08,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:58:08,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638785520] [2023-11-24 21:58:08,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:58:08,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:58:08,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:58:08,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:58:08,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:58:08,154 INFO L87 Difference]: Start difference. First operand 1124 states and 1396 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 21:58:11,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:58:11,873 INFO L93 Difference]: Finished difference Result 1127 states and 1400 transitions. [2023-11-24 21:58:11,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:58:11,874 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2023-11-24 21:58:11,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:58:11,881 INFO L225 Difference]: With dead ends: 1127 [2023-11-24 21:58:11,882 INFO L226 Difference]: Without dead ends: 1127 [2023-11-24 21:58:11,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:58:11,883 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 973 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-24 21:58:11,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [978 Valid, 298 Invalid, 848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-24 21:58:11,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2023-11-24 21:58:11,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 942. [2023-11-24 21:58:11,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 432 states have (on average 2.2893518518518516) internal successors, (989), 934 states have internal predecessors, (989), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-24 21:58:11,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 999 transitions. [2023-11-24 21:58:11,934 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 999 transitions. Word has length 7 [2023-11-24 21:58:11,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:58:11,934 INFO L495 AbstractCegarLoop]: Abstraction has 942 states and 999 transitions. [2023-11-24 21:58:11,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 21:58:11,935 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 999 transitions. [2023-11-24 21:58:11,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 21:58:11,936 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:58:11,936 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:58:11,944 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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 21:58:12,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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 21:58:12,140 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-24 21:58:12,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:58:12,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1245279837, now seen corresponding path program 1 times [2023-11-24 21:58:12,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:58:12,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [283345448] [2023-11-24 21:58:12,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:58:12,141 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 21:58:12,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:58:12,142 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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 21:58:12,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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 21:58:12,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:58:12,314 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:58:12,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:58:12,323 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 21:58:12,338 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 21:58:12,338 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:58:12,338 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:58:12,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [283345448] [2023-11-24 21:58:12,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [283345448] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:58:12,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:58:12,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:58:12,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498710797] [2023-11-24 21:58:12,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:58:12,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:58:12,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:58:12,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:58:12,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:58:12,341 INFO L87 Difference]: Start difference. First operand 942 states and 999 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:58:15,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:58:15,058 INFO L93 Difference]: Finished difference Result 1239 states and 1327 transitions. [2023-11-24 21:58:15,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:58:15,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-24 21:58:15,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:58:15,067 INFO L225 Difference]: With dead ends: 1239 [2023-11-24 21:58:15,067 INFO L226 Difference]: Without dead ends: 1239 [2023-11-24 21:58:15,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:58:15,069 INFO L413 NwaCegarLoop]: 774 mSDtfsCounter, 885 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 890 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-24 21:58:15,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [890 Valid, 989 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-24 21:58:15,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2023-11-24 21:58:15,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 894. [2023-11-24 21:58:15,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 432 states have (on average 2.178240740740741) internal successors, (941), 886 states have internal predecessors, (941), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-24 21:58:15,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 951 transitions. [2023-11-24 21:58:15,094 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 951 transitions. Word has length 8 [2023-11-24 21:58:15,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:58:15,094 INFO L495 AbstractCegarLoop]: Abstraction has 894 states and 951 transitions. [2023-11-24 21:58:15,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:58:15,095 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 951 transitions. [2023-11-24 21:58:15,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 21:58:15,095 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:58:15,095 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:58:15,101 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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 21:58:15,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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 21:58:15,301 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-24 21:58:15,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:58:15,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1245279836, now seen corresponding path program 1 times [2023-11-24 21:58:15,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:58:15,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1351689149] [2023-11-24 21:58:15,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:58:15,303 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 21:58:15,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:58:15,304 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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 21:58:15,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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 21:58:15,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:58:15,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 21:58:15,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:58:15,479 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 21:58:15,508 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 21:58:15,508 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:58:15,509 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:58:15,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1351689149] [2023-11-24 21:58:15,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1351689149] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:58:15,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:58:15,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:58:15,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785072360] [2023-11-24 21:58:15,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:58:15,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:58:15,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:58:15,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:58:15,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:58:15,511 INFO L87 Difference]: Start difference. First operand 894 states and 951 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:58:19,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:58:19,657 INFO L93 Difference]: Finished difference Result 1308 states and 1399 transitions. [2023-11-24 21:58:19,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:58:19,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-24 21:58:19,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:58:19,666 INFO L225 Difference]: With dead ends: 1308 [2023-11-24 21:58:19,667 INFO L226 Difference]: Without dead ends: 1308 [2023-11-24 21:58:19,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:58:19,668 INFO L413 NwaCegarLoop]: 945 mSDtfsCounter, 613 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 1293 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-24 21:58:19,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 1293 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-11-24 21:58:19,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1308 states. [2023-11-24 21:58:19,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1308 to 907. [2023-11-24 21:58:19,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 455 states have (on average 2.1714285714285713) internal successors, (988), 899 states have internal predecessors, (988), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-24 21:58:19,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 998 transitions. [2023-11-24 21:58:19,699 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 998 transitions. Word has length 8 [2023-11-24 21:58:19,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:58:19,699 INFO L495 AbstractCegarLoop]: Abstraction has 907 states and 998 transitions. [2023-11-24 21:58:19,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:58:19,700 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 998 transitions. [2023-11-24 21:58:19,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 21:58:19,700 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:58:19,701 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:58:19,710 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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 21:58:19,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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 21:58:19,906 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr525REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-24 21:58:19,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:58:19,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1058268812, now seen corresponding path program 1 times [2023-11-24 21:58:19,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:58:19,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [752333106] [2023-11-24 21:58:19,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:58:19,907 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 21:58:19,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:58:19,909 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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 21:58:19,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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 21:58:20,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:58:20,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 21:58:20,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:58:20,229 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 21:58:20,229 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:58:20,229 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:58:20,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [752333106] [2023-11-24 21:58:20,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [752333106] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:58:20,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:58:20,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:58:20,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395481779] [2023-11-24 21:58:20,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:58:20,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:58:20,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:58:20,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:58:20,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:58:20,232 INFO L87 Difference]: Start difference. First operand 907 states and 998 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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 21:58:22,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:58:22,790 INFO L93 Difference]: Finished difference Result 1316 states and 1442 transitions. [2023-11-24 21:58:22,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 21:58:22,792 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2023-11-24 21:58:22,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:58:22,799 INFO L225 Difference]: With dead ends: 1316 [2023-11-24 21:58:22,799 INFO L226 Difference]: Without dead ends: 1316 [2023-11-24 21:58:22,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 21:58:22,800 INFO L413 NwaCegarLoop]: 877 mSDtfsCounter, 497 mSDsluCounter, 1484 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 2361 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-24 21:58:22,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 2361 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-24 21:58:22,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1316 states. [2023-11-24 21:58:22,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1316 to 1109. [2023-11-24 21:58:22,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1109 states, 656 states have (on average 2.1402439024390243) internal successors, (1404), 1100 states have internal predecessors, (1404), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-24 21:58:22,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 1416 transitions. [2023-11-24 21:58:22,833 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 1416 transitions. Word has length 11 [2023-11-24 21:58:22,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:58:22,833 INFO L495 AbstractCegarLoop]: Abstraction has 1109 states and 1416 transitions. [2023-11-24 21:58:22,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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 21:58:22,833 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 1416 transitions. [2023-11-24 21:58:22,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 21:58:22,834 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:58:22,834 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:58:22,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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)] Ended with exit code 0 [2023-11-24 21:58:23,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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 21:58:23,038 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr529ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-24 21:58:23,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:58:23,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1553405064, now seen corresponding path program 1 times [2023-11-24 21:58:23,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:58:23,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1447226668] [2023-11-24 21:58:23,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:58:23,040 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 21:58:23,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:58:23,041 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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 21:58:23,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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 21:58:23,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:58:23,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 21:58:23,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:58:23,411 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_54| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_54|)) (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_54| (_ bv0 1)) |c_#valid|))) is different from true [2023-11-24 21:58:23,411 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 21:58:23,411 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:58:23,412 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:58:23,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1447226668] [2023-11-24 21:58:23,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1447226668] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:58:23,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:58:23,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:58:23,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691874101] [2023-11-24 21:58:23,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:58:23,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:58:23,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:58:23,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:58:23,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-24 21:58:23,414 INFO L87 Difference]: Start difference. First operand 1109 states and 1416 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 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 21:58:26,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:58:26,345 INFO L93 Difference]: Finished difference Result 1429 states and 1819 transitions. [2023-11-24 21:58:26,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:58:26,345 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 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 21:58:26,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:58:26,353 INFO L225 Difference]: With dead ends: 1429 [2023-11-24 21:58:26,354 INFO L226 Difference]: Without dead ends: 1425 [2023-11-24 21:58:26,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-24 21:58:26,355 INFO L413 NwaCegarLoop]: 718 mSDtfsCounter, 294 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 1930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1238 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-24 21:58:26,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 1178 Invalid, 1930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 692 Invalid, 0 Unknown, 1238 Unchecked, 2.9s Time] [2023-11-24 21:58:26,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1425 states. [2023-11-24 21:58:26,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1425 to 1178. [2023-11-24 21:58:26,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1178 states, 724 states have (on average 2.1146408839779007) internal successors, (1531), 1168 states have internal predecessors, (1531), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-24 21:58:26,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1545 transitions. [2023-11-24 21:58:26,390 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1545 transitions. Word has length 12 [2023-11-24 21:58:26,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:58:26,391 INFO L495 AbstractCegarLoop]: Abstraction has 1178 states and 1545 transitions. [2023-11-24 21:58:26,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 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 21:58:26,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1545 transitions. [2023-11-24 21:58:26,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 21:58:26,392 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:58:26,392 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:58:26,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-11-24 21:58:26,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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 21:58:26,596 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr340REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-24 21:58:26,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:58:26,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1495978260, now seen corresponding path program 1 times [2023-11-24 21:58:26,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:58:26,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1114903098] [2023-11-24 21:58:26,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:58:26,597 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 21:58:26,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:58:26,598 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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 21:58:26,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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 21:58:26,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:58:26,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 21:58:26,799 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:58:26,812 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 21:58:26,812 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:58:26,812 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:58:26,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1114903098] [2023-11-24 21:58:26,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1114903098] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:58:26,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:58:26,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:58:26,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512391964] [2023-11-24 21:58:26,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:58:26,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:58:26,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:58:26,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:58:26,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:58:26,815 INFO L87 Difference]: Start difference. First operand 1178 states and 1545 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 21:58:27,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:58:27,863 INFO L93 Difference]: Finished difference Result 1109 states and 1425 transitions. [2023-11-24 21:58:27,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:58:27,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2023-11-24 21:58:27,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:58:27,870 INFO L225 Difference]: With dead ends: 1109 [2023-11-24 21:58:27,870 INFO L226 Difference]: Without dead ends: 1109 [2023-11-24 21:58:27,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 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 21:58:27,871 INFO L413 NwaCegarLoop]: 780 mSDtfsCounter, 70 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 1511 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-24 21:58:27,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 1511 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-24 21:58:27,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2023-11-24 21:58:27,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 1109. [2023-11-24 21:58:27,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1109 states, 679 states have (on average 2.078055964653903) internal successors, (1411), 1099 states have internal predecessors, (1411), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-24 21:58:27,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 1425 transitions. [2023-11-24 21:58:27,898 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 1425 transitions. Word has length 13 [2023-11-24 21:58:27,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:58:27,899 INFO L495 AbstractCegarLoop]: Abstraction has 1109 states and 1425 transitions. [2023-11-24 21:58:27,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 21:58:27,899 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 1425 transitions. [2023-11-24 21:58:27,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-24 21:58:27,900 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:58:27,900 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:58:27,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-11-24 21:58:28,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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 21:58:28,102 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr364REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-24 21:58:28,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:58:28,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1178962534, now seen corresponding path program 1 times [2023-11-24 21:58:28,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:58:28,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [280075924] [2023-11-24 21:58:28,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:58:28,104 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 21:58:28,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:58:28,105 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/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 21:58:28,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be58ff56-70fe-4627-b360-29676fb036d8/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-24 21:58:28,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:58:28,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:58:28,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:58:28,308 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 21:58:28,309 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:58:28,309 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:58:28,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [280075924] [2023-11-24 21:58:28,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [280075924] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:58:28,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:58:28,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 21:58:28,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132099013] [2023-11-24 21:58:28,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:58:28,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:58:28,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:58:28,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:58:28,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:58:28,311 INFO L87 Difference]: Start difference. First operand 1109 states and 1425 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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)