./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 94599b38b669e42115f92cee257d9ed4ed5d4777dca7d2ee690bacb4e0d226f0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:45:13,464 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:45:13,588 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-24 21:45:13,597 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:45:13,598 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:45:13,641 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:45:13,642 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:45:13,643 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:45:13,644 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:45:13,645 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:45:13,646 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:45:13,647 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:45:13,648 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:45:13,649 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:45:13,649 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:45:13,650 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:45:13,651 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:45:13,651 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:45:13,652 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:45:13,653 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:45:13,653 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 21:45:13,654 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 21:45:13,655 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 21:45:13,655 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:45:13,656 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 21:45:13,657 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 21:45:13,657 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:45:13,658 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:45:13,659 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:45:13,659 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:45:13,660 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:45:13,661 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:45:13,661 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:45:13,662 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:45:13,663 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:45:13,663 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 21:45:13,664 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 21:45:13,665 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:45:13,665 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:45:13,666 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:45:13,666 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:45:13,667 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_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94599b38b669e42115f92cee257d9ed4ed5d4777dca7d2ee690bacb4e0d226f0 [2023-11-24 21:45:13,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:45:13,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:45:13,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:45:13,988 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:45:13,988 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:45:13,990 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i [2023-11-24 21:45:17,434 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:45:17,941 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:45:17,944 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i [2023-11-24 21:45:17,980 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/data/092cd5e2d/fe5971d6ef4a45fb9c38c8703cb60d3a/FLAG2524f2afc [2023-11-24 21:45:18,002 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/data/092cd5e2d/fe5971d6ef4a45fb9c38c8703cb60d3a [2023-11-24 21:45:18,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:45:18,015 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:45:18,018 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:45:18,018 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:45:18,025 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:45:18,026 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:45:18" (1/1) ... [2023-11-24 21:45:18,028 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ebe7f93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:45:18, skipping insertion in model container [2023-11-24 21:45:18,028 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:45:18" (1/1) ... [2023-11-24 21:45:18,134 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:45:18,975 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:45:18,995 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-24 21:45:18,996 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4739a78f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:45:18, skipping insertion in model container [2023-11-24 21:45:18,996 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:45:18,997 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-24 21:45:19,000 INFO L158 Benchmark]: Toolchain (without parser) took 983.78ms. Allocated memory is still 169.9MB. Free memory was 127.5MB in the beginning and 103.5MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-24 21:45:19,000 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 67.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 21:45:19,002 INFO L158 Benchmark]: CACSL2BoogieTranslator took 978.83ms. Allocated memory is still 169.9MB. Free memory was 127.5MB in the beginning and 103.5MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-24 21:45:19,004 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 67.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 978.83ms. Allocated memory is still 169.9MB. Free memory was 127.5MB in the beginning and 103.5MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 737]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 94599b38b669e42115f92cee257d9ed4ed5d4777dca7d2ee690bacb4e0d226f0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:45:21,728 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:45:21,892 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-24 21:45:21,903 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:45:21,905 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:45:21,959 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:45:21,960 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:45:21,961 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:45:21,962 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:45:21,969 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:45:21,970 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:45:21,971 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:45:21,972 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:45:21,974 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:45:21,975 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:45:21,976 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:45:21,976 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:45:21,977 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:45:21,978 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:45:21,979 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:45:21,980 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 21:45:21,981 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 21:45:21,981 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 21:45:21,982 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:45:21,983 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 21:45:21,983 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 21:45:21,984 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 21:45:21,985 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 21:45:21,985 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:45:21,986 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:45:21,988 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:45:21,989 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:45:21,990 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:45:21,990 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:45:21,990 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:45:21,991 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:45:21,992 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:45:21,993 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-24 21:45:21,993 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 21:45:21,994 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:45:21,994 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:45:21,994 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:45:21,995 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:45:21,995 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-24 21:45:21,996 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_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94599b38b669e42115f92cee257d9ed4ed5d4777dca7d2ee690bacb4e0d226f0 [2023-11-24 21:45:22,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:45:22,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:45:22,503 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:45:22,504 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:45:22,505 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:45:22,506 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i [2023-11-24 21:45:25,841 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:45:26,255 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:45:26,258 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i [2023-11-24 21:45:26,279 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/data/3c20cf482/3d4a5910bc094df7a5ae0044b47515c4/FLAGc0710725e [2023-11-24 21:45:26,304 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/data/3c20cf482/3d4a5910bc094df7a5ae0044b47515c4 [2023-11-24 21:45:26,307 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:45:26,309 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:45:26,310 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:45:26,311 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:45:26,318 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:45:26,319 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:45:26" (1/1) ... [2023-11-24 21:45:26,320 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@548145ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:45:26, skipping insertion in model container [2023-11-24 21:45:26,321 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:45:26" (1/1) ... [2023-11-24 21:45:26,437 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:45:27,137 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:45:27,152 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-24 21:45:27,171 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:45:27,372 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:45:27,387 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 21:45:27,529 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:45:27,587 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 21:45:27,595 INFO L206 MainTranslator]: Completed translation [2023-11-24 21:45:27,596 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:45:27 WrapperNode [2023-11-24 21:45:27,597 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:45:27,598 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 21:45:27,598 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 21:45:27,598 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 21:45:27,605 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:45:27" (1/1) ... [2023-11-24 21:45:27,680 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:45:27" (1/1) ... [2023-11-24 21:45:27,822 INFO L138 Inliner]: procedures = 180, calls = 489, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1732 [2023-11-24 21:45:27,823 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 21:45:27,824 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 21:45:27,824 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 21:45:27,824 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 21:45:27,836 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:45:27" (1/1) ... [2023-11-24 21:45:27,836 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:45:27" (1/1) ... [2023-11-24 21:45:27,849 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:45:27" (1/1) ... [2023-11-24 21:45:28,086 INFO L175 MemorySlicer]: Split 453 memory accesses to 5 slices as follows [2, 5, 5, 24, 417]. 92 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 101 writes are split as follows [0, 1, 1, 1, 98]. [2023-11-24 21:45:28,089 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:45:27" (1/1) ... [2023-11-24 21:45:28,090 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:45:27" (1/1) ... [2023-11-24 21:45:28,193 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:45:27" (1/1) ... [2023-11-24 21:45:28,223 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:45:27" (1/1) ... [2023-11-24 21:45:28,236 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:45:27" (1/1) ... [2023-11-24 21:45:28,257 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:45:27" (1/1) ... [2023-11-24 21:45:28,299 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 21:45:28,300 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 21:45:28,301 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 21:45:28,301 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 21:45:28,302 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:45:27" (1/1) ... [2023-11-24 21:45:28,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:45:28,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:45:28,340 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-24 21:45:28,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-24 21:45:28,394 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-24 21:45:28,395 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-24 21:45:28,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-24 21:45:28,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-24 21:45:28,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-24 21:45:28,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-24 21:45:28,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-11-24 21:45:28,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-24 21:45:28,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-24 21:45:28,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-24 21:45:28,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-24 21:45:28,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-11-24 21:45:28,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 21:45:28,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 21:45:28,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-24 21:45:28,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-24 21:45:28,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-24 21:45:28,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-24 21:45:28,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2023-11-24 21:45:28,398 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-24 21:45:28,398 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-24 21:45:28,398 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-24 21:45:28,399 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-24 21:45:28,399 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2023-11-24 21:45:28,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 21:45:28,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 21:45:28,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-24 21:45:28,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-24 21:45:28,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-24 21:45:28,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-24 21:45:28,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-24 21:45:28,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 21:45:28,400 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-24 21:45:28,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-24 21:45:28,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-24 21:45:28,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-24 21:45:28,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-24 21:45:28,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-24 21:45:28,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 21:45:28,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-24 21:45:28,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-24 21:45:28,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-24 21:45:28,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-24 21:45:28,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-11-24 21:45:28,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-24 21:45:28,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-24 21:45:28,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-24 21:45:28,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-24 21:45:28,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-11-24 21:45:28,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 21:45:28,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 21:45:28,693 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 21:45:28,697 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 21:45:28,741 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:45:28,794 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:45:28,834 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:45:28,860 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:45:28,879 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:45:37,623 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 21:45:37,994 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 21:45:37,995 INFO L309 CfgBuilder]: Removed 100 assume(true) statements. [2023-11-24 21:45:37,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:45:37 BoogieIcfgContainer [2023-11-24 21:45:37,997 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 21:45:38,000 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 21:45:38,000 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 21:45:38,005 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 21:45:38,005 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 09:45:26" (1/3) ... [2023-11-24 21:45:38,006 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52abfaff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:45:38, skipping insertion in model container [2023-11-24 21:45:38,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:45:27" (2/3) ... [2023-11-24 21:45:38,009 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52abfaff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:45:38, skipping insertion in model container [2023-11-24 21:45:38,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:45:37" (3/3) ... [2023-11-24 21:45:38,011 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test5-3.i [2023-11-24 21:45:38,029 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 21:45:38,029 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 931 error locations. [2023-11-24 21:45:38,123 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 21:45:38,130 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;@749d2b54, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 21:45:38,130 INFO L358 AbstractCegarLoop]: Starting to check reachability of 931 error locations. [2023-11-24 21:45:38,144 INFO L276 IsEmpty]: Start isEmpty. Operand has 1672 states, 730 states have (on average 2.543835616438356) internal successors, (1857), 1662 states have internal predecessors, (1857), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-24 21:45:38,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 21:45:38,154 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:45:38,155 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-24 21:45:38,155 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-24 21:45:38,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:45:38,164 INFO L85 PathProgramCache]: Analyzing trace with hash 87917312, now seen corresponding path program 1 times [2023-11-24 21:45:38,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:45:38,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1738940733] [2023-11-24 21:45:38,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:45:38,178 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:45:38,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:45:38,181 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 21:45:38,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-24 21:45:38,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:45:38,464 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 21:45:38,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:45:38,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:45:38,517 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:45:38,518 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:45:38,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1738940733] [2023-11-24 21:45:38,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1738940733] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:45:38,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:45:38,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:45:38,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203949187] [2023-11-24 21:45:38,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:45:38,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 21:45:38,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:45:38,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 21:45:38,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 21:45:38,564 INFO L87 Difference]: Start difference. First operand has 1672 states, 730 states have (on average 2.543835616438356) internal successors, (1857), 1662 states have internal predecessors, (1857), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:45:40,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:45:40,066 INFO L93 Difference]: Finished difference Result 1652 states and 1753 transitions. [2023-11-24 21:45:40,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 21:45:40,074 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-24 21:45:40,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:45:40,106 INFO L225 Difference]: With dead ends: 1652 [2023-11-24 21:45:40,107 INFO L226 Difference]: Without dead ends: 1651 [2023-11-24 21:45:40,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 21:45:40,112 INFO L413 NwaCegarLoop]: 1576 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1576 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-24 21:45:40,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1576 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-24 21:45:40,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1651 states. [2023-11-24 21:45:40,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1651 to 1651. [2023-11-24 21:45:40,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1651 states, 721 states have (on average 2.396671289875173) internal successors, (1728), 1641 states have internal predecessors, (1728), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-24 21:45:40,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1651 states to 1651 states and 1752 transitions. [2023-11-24 21:45:40,243 INFO L78 Accepts]: Start accepts. Automaton has 1651 states and 1752 transitions. Word has length 4 [2023-11-24 21:45:40,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:45:40,243 INFO L495 AbstractCegarLoop]: Abstraction has 1651 states and 1752 transitions. [2023-11-24 21:45:40,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:45:40,244 INFO L276 IsEmpty]: Start isEmpty. Operand 1651 states and 1752 transitions. [2023-11-24 21:45:40,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 21:45:40,244 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:45:40,245 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-24 21:45:40,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-24 21:45:40,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:45:40,448 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-24 21:45:40,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:45:40,449 INFO L85 PathProgramCache]: Analyzing trace with hash 87917374, now seen corresponding path program 1 times [2023-11-24 21:45:40,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:45:40,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [872209763] [2023-11-24 21:45:40,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:45:40,450 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:45:40,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:45:40,451 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 21:45:40,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-24 21:45:40,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:45:40,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:45:40,670 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:45:40,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-24 21:45:40,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:45:40,816 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:45:40,816 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:45:40,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [872209763] [2023-11-24 21:45:40,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [872209763] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:45:40,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:45:40,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:45:40,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452661542] [2023-11-24 21:45:40,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:45:40,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:45:40,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:45:40,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:45:40,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:45:40,820 INFO L87 Difference]: Start difference. First operand 1651 states and 1752 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:45:45,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:45:45,363 INFO L93 Difference]: Finished difference Result 1880 states and 2025 transitions. [2023-11-24 21:45:45,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:45:45,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-24 21:45:45,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:45:45,375 INFO L225 Difference]: With dead ends: 1880 [2023-11-24 21:45:45,375 INFO L226 Difference]: Without dead ends: 1880 [2023-11-24 21:45:45,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:45:45,377 INFO L413 NwaCegarLoop]: 1113 mSDtfsCounter, 1235 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 1141 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 1512 SdHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-11-24 21:45:45,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1246 Valid, 1512 Invalid, 1243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1141 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-11-24 21:45:45,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1880 states. [2023-11-24 21:45:45,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1880 to 1626. [2023-11-24 21:45:45,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1626 states, 787 states have (on average 2.238881829733164) internal successors, (1762), 1616 states have internal predecessors, (1762), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-24 21:45:45,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1626 states to 1626 states and 1786 transitions. [2023-11-24 21:45:45,433 INFO L78 Accepts]: Start accepts. Automaton has 1626 states and 1786 transitions. Word has length 4 [2023-11-24 21:45:45,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:45:45,433 INFO L495 AbstractCegarLoop]: Abstraction has 1626 states and 1786 transitions. [2023-11-24 21:45:45,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:45:45,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1626 states and 1786 transitions. [2023-11-24 21:45:45,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 21:45:45,434 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:45:45,434 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-24 21:45:45,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-24 21:45:45,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:45:45,635 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-24 21:45:45,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:45:45,635 INFO L85 PathProgramCache]: Analyzing trace with hash 87917375, now seen corresponding path program 1 times [2023-11-24 21:45:45,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:45:45,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1650650680] [2023-11-24 21:45:45,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:45:45,636 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:45:45,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:45:45,638 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 21:45:45,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-24 21:45:45,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:45:45,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 21:45:45,877 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:45:45,888 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-24 21:45:45,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:45:45,919 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:45:45,919 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:45:45,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1650650680] [2023-11-24 21:45:45,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1650650680] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:45:45,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:45:45,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:45:45,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889945370] [2023-11-24 21:45:45,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:45:45,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:45:45,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:45:45,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:45:45,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:45:45,923 INFO L87 Difference]: Start difference. First operand 1626 states and 1786 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:45:52,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:45:52,422 INFO L93 Difference]: Finished difference Result 2095 states and 2306 transitions. [2023-11-24 21:45:52,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:45:52,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-24 21:45:52,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:45:52,435 INFO L225 Difference]: With dead ends: 2095 [2023-11-24 21:45:52,435 INFO L226 Difference]: Without dead ends: 2095 [2023-11-24 21:45:52,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:45:52,437 INFO L413 NwaCegarLoop]: 1441 mSDtfsCounter, 673 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 2101 SdHoareTripleChecker+Invalid, 1299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-11-24 21:45:52,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 2101 Invalid, 1299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1276 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-11-24 21:45:52,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2095 states. [2023-11-24 21:45:52,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2095 to 1749. [2023-11-24 21:45:52,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1749 states, 920 states have (on average 2.2119565217391304) internal successors, (2035), 1739 states have internal predecessors, (2035), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-24 21:45:52,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1749 states to 1749 states and 2059 transitions. [2023-11-24 21:45:52,491 INFO L78 Accepts]: Start accepts. Automaton has 1749 states and 2059 transitions. Word has length 4 [2023-11-24 21:45:52,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:45:52,491 INFO L495 AbstractCegarLoop]: Abstraction has 1749 states and 2059 transitions. [2023-11-24 21:45:52,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:45:52,492 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states and 2059 transitions. [2023-11-24 21:45:52,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 21:45:52,492 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:45:52,492 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-24 21:45:52,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-24 21:45:52,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:45:52,695 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr640REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-24 21:45:52,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:45:52,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1567837391, now seen corresponding path program 1 times [2023-11-24 21:45:52,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:45:52,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [200377687] [2023-11-24 21:45:52,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:45:52,697 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:45:52,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:45:52,698 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 21:45:52,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-24 21:45:52,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:45:52,889 INFO L262 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 21:45:52,892 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:45:52,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:45:52,907 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:45:52,907 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:45:52,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [200377687] [2023-11-24 21:45:52,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [200377687] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:45:52,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:45:52,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:45:52,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653546264] [2023-11-24 21:45:52,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:45:52,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:45:52,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:45:52,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:45:52,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:45:52,916 INFO L87 Difference]: Start difference. First operand 1749 states and 2059 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:45:55,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:45:55,638 INFO L93 Difference]: Finished difference Result 3134 states and 3735 transitions. [2023-11-24 21:45:55,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:45:55,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-24 21:45:55,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:45:55,657 INFO L225 Difference]: With dead ends: 3134 [2023-11-24 21:45:55,657 INFO L226 Difference]: Without dead ends: 3134 [2023-11-24 21:45:55,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:45:55,659 INFO L413 NwaCegarLoop]: 1688 mSDtfsCounter, 1243 mSDsluCounter, 1466 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1254 SdHoareTripleChecker+Valid, 3154 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-24 21:45:55,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1254 Valid, 3154 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-24 21:45:55,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3134 states. [2023-11-24 21:45:55,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3134 to 1751. [2023-11-24 21:45:55,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1751 states, 922 states have (on average 2.2093275488069413) internal successors, (2037), 1741 states have internal predecessors, (2037), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-24 21:45:55,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1751 states to 1751 states and 2061 transitions. [2023-11-24 21:45:55,718 INFO L78 Accepts]: Start accepts. Automaton has 1751 states and 2061 transitions. Word has length 5 [2023-11-24 21:45:55,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:45:55,718 INFO L495 AbstractCegarLoop]: Abstraction has 1751 states and 2061 transitions. [2023-11-24 21:45:55,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:45:55,719 INFO L276 IsEmpty]: Start isEmpty. Operand 1751 states and 2061 transitions. [2023-11-24 21:45:55,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 21:45:55,719 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:45:55,719 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:45:55,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-11-24 21:45:55,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:45:55,922 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-24 21:45:55,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:45:55,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1367398792, now seen corresponding path program 1 times [2023-11-24 21:45:55,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:45:55,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1295876074] [2023-11-24 21:45:55,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:45:55,924 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:45:55,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:45:55,925 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 21:45:55,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-24 21:45:56,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:45:56,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 21:45:56,181 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:45:56,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:45:56,191 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:45:56,192 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:45:56,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1295876074] [2023-11-24 21:45:56,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1295876074] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:45:56,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:45:56,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:45:56,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932623076] [2023-11-24 21:45:56,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:45:56,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:45:56,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:45:56,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:45:56,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:45:56,195 INFO L87 Difference]: Start difference. First operand 1751 states and 2061 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:45:57,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:45:57,788 INFO L93 Difference]: Finished difference Result 1712 states and 2021 transitions. [2023-11-24 21:45:57,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:45:57,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-24 21:45:57,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:45:57,798 INFO L225 Difference]: With dead ends: 1712 [2023-11-24 21:45:57,798 INFO L226 Difference]: Without dead ends: 1712 [2023-11-24 21:45:57,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:45:57,799 INFO L413 NwaCegarLoop]: 1426 mSDtfsCounter, 70 mSDsluCounter, 1377 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 2803 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-24 21:45:57,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 2803 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-24 21:45:57,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1712 states. [2023-11-24 21:45:57,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1712 to 1712. [2023-11-24 21:45:57,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1712 states, 907 states have (on average 2.201764057331863) internal successors, (1997), 1702 states have internal predecessors, (1997), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-24 21:45:57,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1712 states to 1712 states and 2021 transitions. [2023-11-24 21:45:57,842 INFO L78 Accepts]: Start accepts. Automaton has 1712 states and 2021 transitions. Word has length 10 [2023-11-24 21:45:57,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:45:57,843 INFO L495 AbstractCegarLoop]: Abstraction has 1712 states and 2021 transitions. [2023-11-24 21:45:57,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:45:57,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1712 states and 2021 transitions. [2023-11-24 21:45:57,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 21:45:57,844 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:45:57,844 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:45:57,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-24 21:45:58,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:45:58,047 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-24 21:45:58,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:45:58,048 INFO L85 PathProgramCache]: Analyzing trace with hash -189756190, now seen corresponding path program 1 times [2023-11-24 21:45:58,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:45:58,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1885418293] [2023-11-24 21:45:58,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:45:58,048 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:45:58,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:45:58,049 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 21:45:58,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-24 21:45:58,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:45:58,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:45:58,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:45:58,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:45:58,329 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:45:58,329 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:45:58,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1885418293] [2023-11-24 21:45:58,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1885418293] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:45:58,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:45:58,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 21:45:58,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84474292] [2023-11-24 21:45:58,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:45:58,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:45:58,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:45:58,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:45:58,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:45:58,332 INFO L87 Difference]: Start difference. First operand 1712 states and 2021 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:46:00,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:46:00,446 INFO L93 Difference]: Finished difference Result 1698 states and 2000 transitions. [2023-11-24 21:46:00,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:46:00,449 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-24 21:46:00,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:46:00,458 INFO L225 Difference]: With dead ends: 1698 [2023-11-24 21:46:00,458 INFO L226 Difference]: Without dead ends: 1698 [2023-11-24 21:46:00,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 21:46:00,459 INFO L413 NwaCegarLoop]: 1395 mSDtfsCounter, 58 mSDsluCounter, 2766 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 4161 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-24 21:46:00,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 4161 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-24 21:46:00,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1698 states. [2023-11-24 21:46:00,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1698 to 1697. [2023-11-24 21:46:00,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1697 states, 906 states have (on average 2.1799116997792494) internal successors, (1975), 1687 states have internal predecessors, (1975), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-24 21:46:00,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 1999 transitions. [2023-11-24 21:46:00,502 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 1999 transitions. Word has length 12 [2023-11-24 21:46:00,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:46:00,503 INFO L495 AbstractCegarLoop]: Abstraction has 1697 states and 1999 transitions. [2023-11-24 21:46:00,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:46:00,503 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 1999 transitions. [2023-11-24 21:46:00,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-24 21:46:00,504 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:46:00,504 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:46:00,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-24 21:46:00,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:46:00,708 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-24 21:46:00,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:46:00,708 INFO L85 PathProgramCache]: Analyzing trace with hash -991145392, now seen corresponding path program 1 times [2023-11-24 21:46:00,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:46:00,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1714565212] [2023-11-24 21:46:00,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:46:00,709 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:46:00,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:46:00,710 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 21:46:00,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-24 21:46:00,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:46:00,938 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 21:46:00,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:46:00,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-24 21:46:01,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:46:01,051 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:46:01,051 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:46:01,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1714565212] [2023-11-24 21:46:01,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1714565212] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:46:01,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:46:01,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:46:01,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249322001] [2023-11-24 21:46:01,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:46:01,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:46:01,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:46:01,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:46:01,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:46:01,057 INFO L87 Difference]: Start difference. First operand 1697 states and 1999 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:46:06,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:46:06,242 INFO L93 Difference]: Finished difference Result 1948 states and 2235 transitions. [2023-11-24 21:46:06,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:46:06,242 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-11-24 21:46:06,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:46:06,253 INFO L225 Difference]: With dead ends: 1948 [2023-11-24 21:46:06,253 INFO L226 Difference]: Without dead ends: 1948 [2023-11-24 21:46:06,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 21:46:06,255 INFO L413 NwaCegarLoop]: 875 mSDtfsCounter, 1170 mSDsluCounter, 1041 mSDsCounter, 0 mSdLazyCounter, 1963 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1181 SdHoareTripleChecker+Valid, 1916 SdHoareTripleChecker+Invalid, 1977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-11-24 21:46:06,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1181 Valid, 1916 Invalid, 1977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1963 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-11-24 21:46:06,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1948 states. [2023-11-24 21:46:06,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1948 to 1693. [2023-11-24 21:46:06,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1693 states, 906 states have (on average 2.1754966887417218) internal successors, (1971), 1683 states have internal predecessors, (1971), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-24 21:46:06,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1693 states to 1693 states and 1995 transitions. [2023-11-24 21:46:06,320 INFO L78 Accepts]: Start accepts. Automaton has 1693 states and 1995 transitions. Word has length 26 [2023-11-24 21:46:06,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:46:06,321 INFO L495 AbstractCegarLoop]: Abstraction has 1693 states and 1995 transitions. [2023-11-24 21:46:06,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:46:06,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 1995 transitions. [2023-11-24 21:46:06,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-24 21:46:06,322 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:46:06,322 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:46:06,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-24 21:46:06,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:46:06,526 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-24 21:46:06,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:46:06,526 INFO L85 PathProgramCache]: Analyzing trace with hash -991145391, now seen corresponding path program 1 times [2023-11-24 21:46:06,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:46:06,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1677333950] [2023-11-24 21:46:06,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:46:06,527 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:46:06,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:46:06,529 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 21:46:06,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_568b6cda-dd16-4187-91e9-5a5330840eef/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-24 21:46:06,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:46:06,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 21:46:06,773 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:46:06,784 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-24 21:46:07,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:46:07,015 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:46:07,015 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:46:07,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1677333950] [2023-11-24 21:46:07,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1677333950] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:46:07,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:46:07,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:46:07,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673037967] [2023-11-24 21:46:07,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:46:07,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:46:07,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:46:07,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:46:07,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:46:07,018 INFO L87 Difference]: Start difference. First operand 1693 states and 1995 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)