./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/naturalNumbers1.c --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_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/naturalNumbers1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-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 68fe5d136456ecb82ea00426715bf936d3e38ca581ddd26cec97e5010ad5777c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:11:37,965 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:11:38,029 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-29 02:11:38,033 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:11:38,033 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:11:38,055 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:11:38,055 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:11:38,056 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:11:38,056 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:11:38,057 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:11:38,058 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:11:38,058 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:11:38,059 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:11:38,059 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:11:38,060 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:11:38,060 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:11:38,061 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 02:11:38,061 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:11:38,062 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 02:11:38,062 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:11:38,062 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 02:11:38,063 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 02:11:38,063 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-29 02:11:38,064 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:11:38,064 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 02:11:38,065 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 02:11:38,065 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 02:11:38,065 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:11:38,066 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:11:38,066 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:11:38,066 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 02:11:38,067 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:11:38,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:11:38,083 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:11:38,083 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:11:38,083 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 02:11:38,083 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 02:11:38,084 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:11:38,084 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:11:38,084 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:11:38,084 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:11:38,085 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_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68fe5d136456ecb82ea00426715bf936d3e38ca581ddd26cec97e5010ad5777c [2023-11-29 02:11:38,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:11:38,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:11:38,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:11:38,328 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:11:38,329 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:11:38,330 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/memsafety-ext3/naturalNumbers1.c [2023-11-29 02:11:41,078 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:11:41,255 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:11:41,256 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/sv-benchmarks/c/memsafety-ext3/naturalNumbers1.c [2023-11-29 02:11:41,263 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/data/8c5e37d94/ec6e5007a56042fb81463ada70828305/FLAGb44b52fb7 [2023-11-29 02:11:41,277 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/data/8c5e37d94/ec6e5007a56042fb81463ada70828305 [2023-11-29 02:11:41,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:11:41,281 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:11:41,282 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:11:41,283 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:11:41,288 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:11:41,288 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:11:41" (1/1) ... [2023-11-29 02:11:41,289 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72327694 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:11:41, skipping insertion in model container [2023-11-29 02:11:41,290 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:11:41" (1/1) ... [2023-11-29 02:11:41,308 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:11:41,450 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:11:41,460 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-29 02:11:41,461 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4b71520e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:11:41, skipping insertion in model container [2023-11-29 02:11:41,461 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:11:41,461 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-29 02:11:41,463 INFO L158 Benchmark]: Toolchain (without parser) took 181.32ms. Allocated memory is still 155.2MB. Free memory was 115.8MB in the beginning and 107.0MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 02:11:41,464 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 155.2MB. Free memory is still 123.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:11:41,465 INFO L158 Benchmark]: CACSL2BoogieTranslator took 178.98ms. Allocated memory is still 155.2MB. Free memory was 115.8MB in the beginning and 107.0MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 02:11:41,467 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 155.2MB. Free memory is still 123.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 178.98ms. Allocated memory is still 155.2MB. Free memory was 115.8MB in the beginning and 107.0MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 15]: 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_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/naturalNumbers1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-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 68fe5d136456ecb82ea00426715bf936d3e38ca581ddd26cec97e5010ad5777c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:11:43,183 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:11:43,257 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-29 02:11:43,262 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:11:43,263 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:11:43,290 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:11:43,291 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:11:43,292 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:11:43,292 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:11:43,293 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:11:43,294 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:11:43,294 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:11:43,295 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:11:43,295 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:11:43,296 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:11:43,297 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:11:43,297 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 02:11:43,298 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:11:43,298 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 02:11:43,299 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:11:43,299 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 02:11:43,300 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 02:11:43,300 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-29 02:11:43,301 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:11:43,301 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 02:11:43,302 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 02:11:43,302 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 02:11:43,303 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 02:11:43,303 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 02:11:43,303 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:11:43,304 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:11:43,304 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:11:43,305 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 02:11:43,305 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:11:43,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:11:43,305 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:11:43,306 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:11:43,306 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 02:11:43,306 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 02:11:43,306 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:11:43,307 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:11:43,307 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:11:43,307 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:11:43,307 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 02:11:43,307 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_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68fe5d136456ecb82ea00426715bf936d3e38ca581ddd26cec97e5010ad5777c [2023-11-29 02:11:43,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:11:43,643 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:11:43,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:11:43,647 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:11:43,647 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:11:43,648 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/memsafety-ext3/naturalNumbers1.c [2023-11-29 02:11:46,452 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:11:46,621 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:11:46,621 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/sv-benchmarks/c/memsafety-ext3/naturalNumbers1.c [2023-11-29 02:11:46,629 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/data/831e14ca5/b607c1bcfffe4783817142b57b81c2ad/FLAG9ddd04883 [2023-11-29 02:11:46,654 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/data/831e14ca5/b607c1bcfffe4783817142b57b81c2ad [2023-11-29 02:11:46,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:11:46,657 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:11:46,658 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:11:46,658 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:11:46,663 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:11:46,664 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:11:46" (1/1) ... [2023-11-29 02:11:46,665 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e6cd0ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:11:46, skipping insertion in model container [2023-11-29 02:11:46,665 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:11:46" (1/1) ... [2023-11-29 02:11:46,680 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:11:46,804 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:11:46,816 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-29 02:11:46,818 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:11:46,823 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:11:46,828 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:11:46,841 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:11:46,857 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:11:46,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:11:46 WrapperNode [2023-11-29 02:11:46,858 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:11:46,859 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:11:46,859 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:11:46,859 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:11:46,865 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:11:46" (1/1) ... [2023-11-29 02:11:46,873 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:11:46" (1/1) ... [2023-11-29 02:11:46,892 INFO L138 Inliner]: procedures = 11, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 41 [2023-11-29 02:11:46,893 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:11:46,894 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:11:46,894 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:11:46,894 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:11:46,905 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:11:46" (1/1) ... [2023-11-29 02:11:46,905 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:11:46" (1/1) ... [2023-11-29 02:11:46,908 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:11:46" (1/1) ... [2023-11-29 02:11:46,921 INFO L175 MemorySlicer]: Split 11 memory accesses to 1 slices as follows [11]. 100 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [10]. The 0 writes are split as follows [0]. [2023-11-29 02:11:46,922 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:11:46" (1/1) ... [2023-11-29 02:11:46,922 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:11:46" (1/1) ... [2023-11-29 02:11:46,928 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:11:46" (1/1) ... [2023-11-29 02:11:46,931 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:11:46" (1/1) ... [2023-11-29 02:11:46,933 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:11:46" (1/1) ... [2023-11-29 02:11:46,934 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:11:46" (1/1) ... [2023-11-29 02:11:46,937 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:11:46,938 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:11:46,938 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:11:46,938 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:11:46,939 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:11:46" (1/1) ... [2023-11-29 02:11:46,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:11:46,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:11:46,970 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 02:11:46,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 02:11:47,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 02:11:47,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 02:11:47,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:11:47,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:11:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 02:11:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 02:11:47,087 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:11:47,090 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:11:47,228 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:11:47,258 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:11:47,259 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 02:11:47,259 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:11:47 BoogieIcfgContainer [2023-11-29 02:11:47,259 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:11:47,262 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 02:11:47,262 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 02:11:47,265 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 02:11:47,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:11:46" (1/3) ... [2023-11-29 02:11:47,266 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b47290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:11:47, skipping insertion in model container [2023-11-29 02:11:47,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:11:46" (2/3) ... [2023-11-29 02:11:47,267 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b47290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:11:47, skipping insertion in model container [2023-11-29 02:11:47,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:11:47" (3/3) ... [2023-11-29 02:11:47,268 INFO L112 eAbstractionObserver]: Analyzing ICFG naturalNumbers1.c [2023-11-29 02:11:47,283 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 02:11:47,284 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-29 02:11:47,321 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 02:11:47,328 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;@6cf70cc4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 02:11:47,328 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-29 02:11:47,332 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 10 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) [2023-11-29 02:11:47,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-29 02:11:47,336 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:11:47,337 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-29 02:11:47,338 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 02:11:47,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:11:47,343 INFO L85 PathProgramCache]: Analyzing trace with hash 58975, now seen corresponding path program 1 times [2023-11-29 02:11:47,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:11:47,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1095234915] [2023-11-29 02:11:47,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:47,355 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:11:47,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:11:47,356 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:11:47,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 02:11:47,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:11:47,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:11:47,430 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:11:47,517 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 [2023-11-29 02:11:47,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:11:47,537 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:11:47,537 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:11:47,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1095234915] [2023-11-29 02:11:47,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1095234915] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:11:47,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:11:47,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 02:11:47,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026993002] [2023-11-29 02:11:47,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:11:47,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:11:47,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:11:47,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:11:47,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:11:47,576 INFO L87 Difference]: Start difference. First operand has 11 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 10 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) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:11:47,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:11:47,612 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2023-11-29 02:11:47,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:11:47,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-29 02:11:47,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:11:47,621 INFO L225 Difference]: With dead ends: 10 [2023-11-29 02:11:47,622 INFO L226 Difference]: Without dead ends: 9 [2023-11-29 02:11:47,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:11:47,627 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:11:47,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 6 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:11:47,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-29 02:11:47,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-11-29 02:11:47,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:11:47,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2023-11-29 02:11:47,655 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 3 [2023-11-29 02:11:47,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:11:47,656 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2023-11-29 02:11:47,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:11:47,656 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2023-11-29 02:11:47,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-29 02:11:47,656 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:11:47,656 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-29 02:11:47,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 02:11:47,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:11:47,857 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 02:11:47,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:11:47,858 INFO L85 PathProgramCache]: Analyzing trace with hash 58976, now seen corresponding path program 1 times [2023-11-29 02:11:47,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:11:47,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1846474222] [2023-11-29 02:11:47,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:47,859 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:11:47,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:11:47,861 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:11:47,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-29 02:11:47,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:11:47,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 02:11:47,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:11:47,932 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 [2023-11-29 02:11:47,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:11:47,972 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:11:47,972 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:11:47,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1846474222] [2023-11-29 02:11:47,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1846474222] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:11:47,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:11:47,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 02:11:47,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258262342] [2023-11-29 02:11:47,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:11:47,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:11:47,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:11:47,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:11:47,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:11:47,976 INFO L87 Difference]: Start difference. First operand 9 states and 10 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) [2023-11-29 02:11:48,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:11:48,017 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2023-11-29 02:11:48,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:11:48,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-29 02:11:48,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:11:48,019 INFO L225 Difference]: With dead ends: 13 [2023-11-29 02:11:48,019 INFO L226 Difference]: Without dead ends: 13 [2023-11-29 02:11:48,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:11:48,021 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:11:48,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 9 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:11:48,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-11-29 02:11:48,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2023-11-29 02:11:48,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 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) [2023-11-29 02:11:48,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2023-11-29 02:11:48,025 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 3 [2023-11-29 02:11:48,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:11:48,025 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2023-11-29 02:11:48,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:11:48,025 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2023-11-29 02:11:48,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 02:11:48,026 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:11:48,026 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 02:11:48,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-29 02:11:48,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:11:48,228 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 02:11:48,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:11:48,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1756911573, now seen corresponding path program 1 times [2023-11-29 02:11:48,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:11:48,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1810430580] [2023-11-29 02:11:48,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:48,229 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:11:48,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:11:48,230 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:11:48,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-29 02:11:48,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:11:48,296 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 02:11:48,298 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:11:48,369 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:11:48,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 13 [2023-11-29 02:11:48,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:11:48,388 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:11:48,388 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:11:48,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1810430580] [2023-11-29 02:11:48,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1810430580] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:11:48,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:11:48,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:11:48,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372640548] [2023-11-29 02:11:48,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:11:48,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:11:48,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:11:48,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:11:48,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:11:48,391 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:11:48,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:11:48,455 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2023-11-29 02:11:48,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:11:48,456 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2023-11-29 02:11:48,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:11:48,456 INFO L225 Difference]: With dead ends: 12 [2023-11-29 02:11:48,456 INFO L226 Difference]: Without dead ends: 12 [2023-11-29 02:11:48,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:11:48,458 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 1 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:11:48,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 13 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:11:48,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-11-29 02:11:48,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-11-29 02:11:48,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 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) [2023-11-29 02:11:48,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2023-11-29 02:11:48,462 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 6 [2023-11-29 02:11:48,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:11:48,462 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2023-11-29 02:11:48,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:11:48,463 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2023-11-29 02:11:48,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 02:11:48,463 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:11:48,463 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-11-29 02:11:48,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-29 02:11:48,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:11:48,669 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 02:11:48,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:11:48,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1756913048, now seen corresponding path program 1 times [2023-11-29 02:11:48,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:11:48,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [391767495] [2023-11-29 02:11:48,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:48,671 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:11:48,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:11:48,672 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:11:48,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-29 02:11:48,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:11:48,711 INFO L262 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 02:11:48,713 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:11:48,733 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 [2023-11-29 02:11:48,824 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:11:48,825 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:11:49,014 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:11:49,015 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:11:49,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [391767495] [2023-11-29 02:11:49,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [391767495] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:11:49,015 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:11:49,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2023-11-29 02:11:49,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511105662] [2023-11-29 02:11:49,016 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:11:49,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:11:49,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:11:49,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:11:49,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:11:49,017 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2023-11-29 02:11:49,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:11:49,121 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2023-11-29 02:11:49,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:11:49,122 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 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 6 [2023-11-29 02:11:49,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:11:49,122 INFO L225 Difference]: With dead ends: 17 [2023-11-29 02:11:49,122 INFO L226 Difference]: Without dead ends: 17 [2023-11-29 02:11:49,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:11:49,124 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 3 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:11:49,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 14 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:11:49,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-11-29 02:11:49,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 14. [2023-11-29 02:11:49,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.25) internal successors, (15), 13 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) [2023-11-29 02:11:49,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2023-11-29 02:11:49,128 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 6 [2023-11-29 02:11:49,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:11:49,129 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2023-11-29 02:11:49,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2023-11-29 02:11:49,129 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2023-11-29 02:11:49,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-29 02:11:49,129 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:11:49,130 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2023-11-29 02:11:49,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-29 02:11:49,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:11:49,333 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 02:11:49,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:11:49,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1725101469, now seen corresponding path program 1 times [2023-11-29 02:11:49,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:11:49,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1824986224] [2023-11-29 02:11:49,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:49,334 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:11:49,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:11:49,335 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:11:49,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-29 02:11:49,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:11:49,389 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 02:11:49,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:11:49,491 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:11:49,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 13 [2023-11-29 02:11:49,509 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:11:49,509 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:11:49,659 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:11:49,659 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:11:49,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1824986224] [2023-11-29 02:11:49,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1824986224] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:11:49,659 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:11:49,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 02:11:49,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847967663] [2023-11-29 02:11:49,660 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:11:49,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:11:49,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:11:49,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:11:49,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:11:49,662 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:11:49,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:11:49,822 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2023-11-29 02:11:49,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:11:49,825 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 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 9 [2023-11-29 02:11:49,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:11:49,825 INFO L225 Difference]: With dead ends: 15 [2023-11-29 02:11:49,826 INFO L226 Difference]: Without dead ends: 15 [2023-11-29 02:11:49,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:11:49,827 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 3 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:11:49,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 16 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:11:49,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-11-29 02:11:49,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-11-29 02:11:49,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:11:49,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2023-11-29 02:11:49,830 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 9 [2023-11-29 02:11:49,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:11:49,831 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2023-11-29 02:11:49,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:11:49,831 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2023-11-29 02:11:49,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-29 02:11:49,832 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:11:49,832 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1] [2023-11-29 02:11:49,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-29 02:11:50,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:11:50,034 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 02:11:50,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:11:50,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1725102944, now seen corresponding path program 2 times [2023-11-29 02:11:50,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:11:50,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [330837457] [2023-11-29 02:11:50,036 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:11:50,036 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:11:50,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:11:50,037 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:11:50,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-29 02:11:50,097 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:11:50,097 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2023-11-29 02:11:50,097 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:11:50,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:11:50,144 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-29 02:11:50,144 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 02:11:50,146 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 3 remaining) [2023-11-29 02:11:50,147 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 3 remaining) [2023-11-29 02:11:50,148 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (0 of 3 remaining) [2023-11-29 02:11:50,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-29 02:11:50,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:11:50,357 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2023-11-29 02:11:50,361 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 02:11:50,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 02:11:50 BoogieIcfgContainer [2023-11-29 02:11:50,383 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 02:11:50,383 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 02:11:50,383 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 02:11:50,383 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 02:11:50,384 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:11:47" (3/4) ... [2023-11-29 02:11:50,385 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-29 02:11:50,429 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 02:11:50,429 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 02:11:50,429 INFO L158 Benchmark]: Toolchain (without parser) took 3772.26ms. Allocated memory was 65.0MB in the beginning and 86.0MB in the end (delta: 21.0MB). Free memory was 45.6MB in the beginning and 62.0MB in the end (delta: -16.4MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2023-11-29 02:11:50,430 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 65.0MB. Free memory was 41.5MB in the beginning and 41.4MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:11:50,430 INFO L158 Benchmark]: CACSL2BoogieTranslator took 199.96ms. Allocated memory is still 65.0MB. Free memory was 45.2MB in the beginning and 34.2MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 02:11:50,430 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.54ms. Allocated memory is still 65.0MB. Free memory was 34.2MB in the beginning and 32.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:11:50,431 INFO L158 Benchmark]: Boogie Preprocessor took 43.38ms. Allocated memory is still 65.0MB. Free memory was 32.6MB in the beginning and 30.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:11:50,431 INFO L158 Benchmark]: RCFGBuilder took 321.69ms. Allocated memory was 65.0MB in the beginning and 86.0MB in the end (delta: 21.0MB). Free memory was 30.6MB in the beginning and 55.6MB in the end (delta: -25.1MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2023-11-29 02:11:50,431 INFO L158 Benchmark]: TraceAbstraction took 3120.44ms. Allocated memory is still 86.0MB. Free memory was 55.0MB in the beginning and 64.1MB in the end (delta: -9.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:11:50,432 INFO L158 Benchmark]: Witness Printer took 45.61ms. Allocated memory is still 86.0MB. Free memory was 64.1MB in the beginning and 62.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:11:50,433 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 65.0MB. Free memory was 41.5MB in the beginning and 41.4MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 199.96ms. Allocated memory is still 65.0MB. Free memory was 45.2MB in the beginning and 34.2MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.54ms. Allocated memory is still 65.0MB. Free memory was 34.2MB in the beginning and 32.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.38ms. Allocated memory is still 65.0MB. Free memory was 32.6MB in the beginning and 30.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 321.69ms. Allocated memory was 65.0MB in the beginning and 86.0MB in the end (delta: 21.0MB). Free memory was 30.6MB in the beginning and 55.6MB in the end (delta: -25.1MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3120.44ms. Allocated memory is still 86.0MB. Free memory was 55.0MB in the beginning and 64.1MB in the end (delta: -9.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 45.61ms. Allocated memory is still 86.0MB. Free memory was 64.1MB in the beginning and 62.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L13] char numbers[] = {0,1,2,3,4,5,6,7,8,9}; [L13] char numbers[] = {0,1,2,3,4,5,6,7,8,9}; [L13] char numbers[] = {0,1,2,3,4,5,6,7,8,9}; [L13] char numbers[] = {0,1,2,3,4,5,6,7,8,9}; [L13] char numbers[] = {0,1,2,3,4,5,6,7,8,9}; [L13] char numbers[] = {0,1,2,3,4,5,6,7,8,9}; [L13] char numbers[] = {0,1,2,3,4,5,6,7,8,9}; [L13] char numbers[] = {0,1,2,3,4,5,6,7,8,9}; [L13] char numbers[] = {0,1,2,3,4,5,6,7,8,9}; [L13] char numbers[] = {0,1,2,3,4,5,6,7,8,9}; [L13] char numbers[] = {0,1,2,3,4,5,6,7,8,9}; [L15] CALL areNatural((int*) numbers) [L2] int i = 0; VAL [i=0, numbers={3:0}, numbers={3:0}] [L3] COND TRUE i < 10 VAL [i=0, numbers={3:0}, numbers={3:0}] [L4] EXPR numbers[i] [L4] COND FALSE !(numbers[i] <= 0) [L7] i++ VAL [i=1, numbers={3:0}, numbers={3:0}] [L3] COND TRUE i < 10 VAL [i=1, numbers={3:0}, numbers={3:0}] [L4] EXPR numbers[i] [L4] COND FALSE !(numbers[i] <= 0) [L7] i++ VAL [i=2, numbers={3:0}, numbers={3:0}] [L3] COND TRUE i < 10 VAL [i=2, numbers={3:0}, numbers={3:0}] [L4] numbers[i] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 6, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 92 IncrementalHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 30 mSDtfsCounter, 92 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=5, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 35 ConstructedInterpolants, 2 QuantifiedInterpolants, 572 SizeOfPredicates, 26 NumberOfNonLiveVariables, 188 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 0/10 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-29 02:11:50,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1767db87-31d5-4f02-89b8-a4735348af89/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)