./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ac848265e1daab3ca0f2905a3d0d6fdafaee38399ca7123ad8517babc999ef80 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:44:29,021 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:44:29,110 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-28 02:44:29,120 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:44:29,120 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:44:29,161 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:44:29,162 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:44:29,162 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:44:29,162 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:44:29,163 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:44:29,163 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:44:29,163 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:44:29,163 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:44:29,163 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:44:29,163 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:44:29,164 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:44:29,164 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:44:29,164 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:44:29,164 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:44:29,164 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:44:29,164 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:44:29,164 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:44:29,164 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 02:44:29,164 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 02:44:29,164 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:44:29,164 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:44:29,165 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:44:29,165 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:44:29,165 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:44:29,165 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:44:29,165 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:44:29,165 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:44:29,165 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:44:29,165 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:44:29,165 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:44:29,165 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:44:29,165 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:44:29,166 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:44:29,166 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:44:29,166 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:44:29,166 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:44:29,166 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:44:29,166 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:44:29,166 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:44:29,166 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:44:29,166 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:44:29,166 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:44:29,167 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:44:29,167 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:44:29,167 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:44:29,167 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac848265e1daab3ca0f2905a3d0d6fdafaee38399ca7123ad8517babc999ef80 [2024-11-28 02:44:29,471 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:44:29,486 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:44:29,489 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:44:29,491 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:44:29,492 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:44:29,493 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i [2024-11-28 02:44:32,354 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/data/8914effde/5031cf6d7ecb4957b4169f01d0c793fe/FLAG55eee4789 [2024-11-28 02:44:32,838 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:44:32,840 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i [2024-11-28 02:44:32,867 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/data/8914effde/5031cf6d7ecb4957b4169f01d0c793fe/FLAG55eee4789 [2024-11-28 02:44:32,920 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/data/8914effde/5031cf6d7ecb4957b4169f01d0c793fe [2024-11-28 02:44:32,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:44:32,925 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:44:32,927 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:44:32,928 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:44:32,938 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:44:32,939 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:44:32" (1/1) ... [2024-11-28 02:44:32,940 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@146385d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:32, skipping insertion in model container [2024-11-28 02:44:32,940 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:44:32" (1/1) ... [2024-11-28 02:44:33,009 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:44:33,759 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:33,813 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:33,818 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:33,822 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:33,835 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:33,882 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:33,882 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:33,888 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:33,888 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:33,894 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:33,895 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:33,899 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:33,900 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:33,909 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:33,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:44:33,942 ERROR L321 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) [2024-11-28 02:44:33,943 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2412cc6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:33, skipping insertion in model container [2024-11-28 02:44:33,943 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:44:33,943 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-28 02:44:33,946 INFO L158 Benchmark]: Toolchain (without parser) took 1020.11ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 76.5MB in the end (delta: 21.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 02:44:33,950 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 167.8MB. Free memory is still 104.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:44:33,951 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1015.78ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 76.5MB in the end (delta: 21.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 02:44:33,952 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 167.8MB. Free memory is still 104.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1015.78ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 76.5MB in the end (delta: 21.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1001]: 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ac848265e1daab3ca0f2905a3d0d6fdafaee38399ca7123ad8517babc999ef80 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:44:36,734 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:44:36,847 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2024-11-28 02:44:36,856 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:44:36,856 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:44:36,897 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:44:36,898 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:44:36,898 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:44:36,899 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:44:36,899 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:44:36,900 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:44:36,900 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:44:36,900 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:44:36,900 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:44:36,902 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:44:36,902 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:44:36,902 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:44:36,902 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:44:36,902 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:44:36,902 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:44:36,903 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:44:36,903 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:44:36,903 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 02:44:36,903 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 02:44:36,903 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:44:36,903 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:44:36,903 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:44:36,903 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 02:44:36,904 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 02:44:36,904 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:44:36,904 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:44:36,904 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:44:36,904 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:44:36,905 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:44:36,905 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:44:36,905 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:44:36,905 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:44:36,905 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:44:36,906 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:44:36,906 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:44:36,906 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:44:36,906 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:44:36,906 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:44:36,906 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:44:36,907 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:44:36,907 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:44:36,907 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 02:44:36,907 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 02:44:36,907 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:44:36,907 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:44:36,908 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:44:36,908 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:44:36,908 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac848265e1daab3ca0f2905a3d0d6fdafaee38399ca7123ad8517babc999ef80 [2024-11-28 02:44:37,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:44:37,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:44:37,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:44:37,259 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:44:37,259 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:44:37,260 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i [2024-11-28 02:44:40,394 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/data/b1f3537dc/3db73bf936c34054b3b8f05a5b914124/FLAGcf277e2fb [2024-11-28 02:44:40,859 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:44:40,863 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i [2024-11-28 02:44:40,887 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/data/b1f3537dc/3db73bf936c34054b3b8f05a5b914124/FLAGcf277e2fb [2024-11-28 02:44:40,968 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/data/b1f3537dc/3db73bf936c34054b3b8f05a5b914124 [2024-11-28 02:44:40,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:44:40,974 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:44:40,975 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:44:40,976 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:44:40,982 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:44:40,982 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:44:40" (1/1) ... [2024-11-28 02:44:40,985 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29fe0493 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:40, skipping insertion in model container [2024-11-28 02:44:40,985 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:44:40" (1/1) ... [2024-11-28 02:44:41,050 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:44:41,630 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:41,684 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:41,690 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:41,696 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:41,708 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:41,749 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:41,749 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:41,753 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:41,754 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:41,758 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:41,760 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:41,764 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:41,765 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:41,772 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:41,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:44:41,793 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-28 02:44:41,811 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:44:41,859 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:41,897 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:41,899 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:41,906 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:41,912 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:41,937 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:41,937 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:41,939 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:41,939 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:41,942 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:41,943 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:41,944 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:41,944 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:41,949 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:44:41,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:44:41,956 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:44:42,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:44:42,200 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:44:42,201 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:42 WrapperNode [2024-11-28 02:44:42,201 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:44:42,202 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:44:42,202 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:44:42,202 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:44:42,213 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:42" (1/1) ... [2024-11-28 02:44:42,250 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:42" (1/1) ... [2024-11-28 02:44:42,363 INFO L138 Inliner]: procedures = 286, calls = 300, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1036 [2024-11-28 02:44:42,363 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:44:42,364 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:44:42,364 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:44:42,364 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:44:42,374 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:42" (1/1) ... [2024-11-28 02:44:42,374 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:42" (1/1) ... [2024-11-28 02:44:42,389 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:42" (1/1) ... [2024-11-28 02:44:42,501 INFO L175 MemorySlicer]: Split 268 memory accesses to 4 slices as follows [2, 12, 34, 220]. 82 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 10, 0, 0]. The 54 writes are split as follows [0, 1, 4, 49]. [2024-11-28 02:44:42,505 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:42" (1/1) ... [2024-11-28 02:44:42,505 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:42" (1/1) ... [2024-11-28 02:44:42,567 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:42" (1/1) ... [2024-11-28 02:44:42,569 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:42" (1/1) ... [2024-11-28 02:44:42,584 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:42" (1/1) ... [2024-11-28 02:44:42,588 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:42" (1/1) ... [2024-11-28 02:44:42,592 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:42" (1/1) ... [2024-11-28 02:44:42,609 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:44:42,613 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:44:42,613 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:44:42,613 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:44:42,616 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:42" (1/1) ... [2024-11-28 02:44:42,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:44:42,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:44:42,653 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:44:42,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:44:42,684 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-28 02:44:42,684 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-28 02:44:42,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-28 02:44:42,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-28 02:44:42,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-28 02:44:42,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-28 02:44:42,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 02:44:42,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 02:44:42,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-28 02:44:42,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-28 02:44:42,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 02:44:42,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 02:44:42,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 02:44:42,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 02:44:42,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 02:44:42,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 02:44:42,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-28 02:44:42,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-28 02:44:42,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-28 02:44:42,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-28 02:44:42,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 02:44:42,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 02:44:42,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-28 02:44:42,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-28 02:44:42,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-28 02:44:42,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-28 02:44:42,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-28 02:44:42,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-28 02:44:42,691 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2024-11-28 02:44:42,691 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2024-11-28 02:44:42,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 02:44:42,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 02:44:42,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 02:44:42,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:44:42,692 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2024-11-28 02:44:42,692 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2024-11-28 02:44:42,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 02:44:42,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 02:44:42,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 02:44:42,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 02:44:42,692 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2024-11-28 02:44:42,692 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2024-11-28 02:44:42,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:44:42,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:44:43,020 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:44:43,023 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:44:49,250 INFO L? ?]: Removed 147 outVars from TransFormulas that were not future-live. [2024-11-28 02:44:49,250 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:44:49,274 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:44:49,274 INFO L312 CfgBuilder]: Removed 36 assume(true) statements. [2024-11-28 02:44:49,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:44:49 BoogieIcfgContainer [2024-11-28 02:44:49,277 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:44:49,282 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:44:49,282 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:44:49,288 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:44:49,289 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:44:40" (1/3) ... [2024-11-28 02:44:49,289 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ee2685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:44:49, skipping insertion in model container [2024-11-28 02:44:49,289 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:44:42" (2/3) ... [2024-11-28 02:44:49,290 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ee2685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:44:49, skipping insertion in model container [2024-11-28 02:44:49,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:44:49" (3/3) ... [2024-11-28 02:44:49,292 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test6-1.i [2024-11-28 02:44:49,310 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:44:49,312 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_OAT_test6-1.i that has 6 procedures, 240 locations, 1 initial locations, 36 loop locations, and 2 error locations. [2024-11-28 02:44:49,372 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:44:49,392 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@694cd737, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:44:49,392 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 02:44:49,402 INFO L276 IsEmpty]: Start isEmpty. Operand has 240 states, 215 states have (on average 1.5906976744186045) internal successors, (342), 220 states have internal predecessors, (342), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 02:44:49,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-28 02:44:49,413 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:49,414 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:44:49,414 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:44:49,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:49,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1597574460, now seen corresponding path program 1 times [2024-11-28 02:44:49,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:44:49,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [293744909] [2024-11-28 02:44:49,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:49,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:49,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:44:49,437 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:44:49,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:44:49,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:49,743 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:44:49,749 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:44:49,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:44:49,776 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:44:49,776 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:44:49,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293744909] [2024-11-28 02:44:49,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293744909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:44:49,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:44:49,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:44:49,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343242064] [2024-11-28 02:44:49,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:44:49,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:44:49,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:44:49,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:44:49,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:44:49,823 INFO L87 Difference]: Start difference. First operand has 240 states, 215 states have (on average 1.5906976744186045) internal successors, (342), 220 states have internal predecessors, (342), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:49,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:44:49,870 INFO L93 Difference]: Finished difference Result 235 states and 300 transitions. [2024-11-28 02:44:49,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:44:49,874 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-28 02:44:49,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:44:49,884 INFO L225 Difference]: With dead ends: 235 [2024-11-28 02:44:49,884 INFO L226 Difference]: Without dead ends: 233 [2024-11-28 02:44:49,886 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:44:49,890 INFO L435 NwaCegarLoop]: 300 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:44:49,891 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:44:49,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-11-28 02:44:49,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2024-11-28 02:44:49,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 210 states have (on average 1.276190476190476) internal successors, (268), 215 states have internal predecessors, (268), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 02:44:49,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 298 transitions. [2024-11-28 02:44:49,949 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 298 transitions. Word has length 10 [2024-11-28 02:44:49,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:44:49,949 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 298 transitions. [2024-11-28 02:44:49,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:49,951 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 298 transitions. [2024-11-28 02:44:49,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-28 02:44:49,951 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:49,951 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:44:49,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:44:50,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:50,152 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:44:50,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:50,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1473877998, now seen corresponding path program 1 times [2024-11-28 02:44:50,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:44:50,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1582991800] [2024-11-28 02:44:50,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:50,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:50,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:44:50,156 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:44:50,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:44:50,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:50,438 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:44:50,443 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:44:50,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:44:50,593 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:44:50,593 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:44:50,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582991800] [2024-11-28 02:44:50,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582991800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:44:50,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:44:50,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:44:50,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141568719] [2024-11-28 02:44:50,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:44:50,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:44:50,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:44:50,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:44:50,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:44:50,599 INFO L87 Difference]: Start difference. First operand 233 states and 298 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:52,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:44:55,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:44:56,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:44:56,350 INFO L93 Difference]: Finished difference Result 352 states and 453 transitions. [2024-11-28 02:44:56,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:44:56,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-28 02:44:56,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:44:56,353 INFO L225 Difference]: With dead ends: 352 [2024-11-28 02:44:56,353 INFO L226 Difference]: Without dead ends: 352 [2024-11-28 02:44:56,354 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:44:56,354 INFO L435 NwaCegarLoop]: 285 mSDtfsCounter, 142 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:44:56,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 809 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-11-28 02:44:56,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2024-11-28 02:44:56,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 348. [2024-11-28 02:44:56,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 325 states have (on average 1.2861538461538462) internal successors, (418), 330 states have internal predecessors, (418), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 02:44:56,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 448 transitions. [2024-11-28 02:44:56,381 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 448 transitions. Word has length 12 [2024-11-28 02:44:56,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:44:56,381 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 448 transitions. [2024-11-28 02:44:56,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:56,382 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 448 transitions. [2024-11-28 02:44:56,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-28 02:44:56,382 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:56,382 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:44:56,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 02:44:56,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:56,583 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:44:56,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:56,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1819542280, now seen corresponding path program 1 times [2024-11-28 02:44:56,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:44:56,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [366430413] [2024-11-28 02:44:56,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:56,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:56,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:44:56,588 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:44:56,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:44:56,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:56,776 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:44:56,779 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:44:56,807 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 02:44:56,809 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 02:44:56,810 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 02:44:56,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2024-11-28 02:44:56,933 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:44:56,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-11-28 02:44:56,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:44:56,961 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:44:56,961 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:44:56,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366430413] [2024-11-28 02:44:56,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366430413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:44:56,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:44:56,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:44:56,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845711093] [2024-11-28 02:44:56,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:44:56,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:44:56,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:44:56,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:44:56,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:44:56,963 INFO L87 Difference]: Start difference. First operand 348 states and 448 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:57,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:44:57,649 INFO L93 Difference]: Finished difference Result 532 states and 692 transitions. [2024-11-28 02:44:57,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:44:57,650 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-28 02:44:57,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:44:57,652 INFO L225 Difference]: With dead ends: 532 [2024-11-28 02:44:57,652 INFO L226 Difference]: Without dead ends: 532 [2024-11-28 02:44:57,653 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:44:57,653 INFO L435 NwaCegarLoop]: 313 mSDtfsCounter, 236 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:44:57,654 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 888 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:44:57,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-11-28 02:44:57,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 347. [2024-11-28 02:44:57,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 324 states have (on average 1.2839506172839505) internal successors, (416), 329 states have internal predecessors, (416), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 02:44:57,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 446 transitions. [2024-11-28 02:44:57,691 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 446 transitions. Word has length 15 [2024-11-28 02:44:57,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:44:57,691 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 446 transitions. [2024-11-28 02:44:57,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:57,692 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 446 transitions. [2024-11-28 02:44:57,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-28 02:44:57,693 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:57,693 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:44:57,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 02:44:57,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:57,894 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:44:57,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:57,894 INFO L85 PathProgramCache]: Analyzing trace with hash -409976656, now seen corresponding path program 1 times [2024-11-28 02:44:57,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:44:57,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1930741646] [2024-11-28 02:44:57,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:57,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:57,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:44:57,899 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:44:57,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:44:58,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:58,222 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:44:58,225 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:44:58,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:44:58,249 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:44:58,249 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:44:58,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930741646] [2024-11-28 02:44:58,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1930741646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:44:58,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:44:58,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:44:58,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837756028] [2024-11-28 02:44:58,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:44:58,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:44:58,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:44:58,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:44:58,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:44:58,251 INFO L87 Difference]: Start difference. First operand 347 states and 446 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:58,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:44:58,417 INFO L93 Difference]: Finished difference Result 387 states and 486 transitions. [2024-11-28 02:44:58,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:44:58,417 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-28 02:44:58,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:44:58,419 INFO L225 Difference]: With dead ends: 387 [2024-11-28 02:44:58,419 INFO L226 Difference]: Without dead ends: 387 [2024-11-28 02:44:58,419 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:44:58,420 INFO L435 NwaCegarLoop]: 278 mSDtfsCounter, 9 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:44:58,420 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 541 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:44:58,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2024-11-28 02:44:58,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 387. [2024-11-28 02:44:58,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 364 states have (on average 1.2527472527472527) internal successors, (456), 369 states have internal predecessors, (456), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 02:44:58,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 486 transitions. [2024-11-28 02:44:58,440 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 486 transitions. Word has length 51 [2024-11-28 02:44:58,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:44:58,441 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 486 transitions. [2024-11-28 02:44:58,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:58,441 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 486 transitions. [2024-11-28 02:44:58,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-28 02:44:58,442 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:58,442 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:44:58,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 02:44:58,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:58,643 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:44:58,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:58,643 INFO L85 PathProgramCache]: Analyzing trace with hash -234464588, now seen corresponding path program 1 times [2024-11-28 02:44:58,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:44:58,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [555749345] [2024-11-28 02:44:58,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:58,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:58,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:44:58,647 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:44:58,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 02:44:58,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:58,982 INFO L256 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:44:58,984 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:44:59,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:44:59,027 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:44:59,028 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:44:59,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555749345] [2024-11-28 02:44:59,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555749345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:44:59,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:44:59,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:44:59,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540394972] [2024-11-28 02:44:59,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:44:59,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:44:59,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:44:59,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:44:59,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:44:59,030 INFO L87 Difference]: Start difference. First operand 387 states and 486 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:59,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:44:59,185 INFO L93 Difference]: Finished difference Result 351 states and 428 transitions. [2024-11-28 02:44:59,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:44:59,186 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-28 02:44:59,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:44:59,187 INFO L225 Difference]: With dead ends: 351 [2024-11-28 02:44:59,187 INFO L226 Difference]: Without dead ends: 351 [2024-11-28 02:44:59,187 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:44:59,188 INFO L435 NwaCegarLoop]: 264 mSDtfsCounter, 32 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:44:59,189 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 778 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:44:59,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2024-11-28 02:44:59,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2024-11-28 02:44:59,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 328 states have (on average 1.2134146341463414) internal successors, (398), 333 states have internal predecessors, (398), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 02:44:59,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 428 transitions. [2024-11-28 02:44:59,200 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 428 transitions. Word has length 51 [2024-11-28 02:44:59,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:44:59,200 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 428 transitions. [2024-11-28 02:44:59,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:44:59,200 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 428 transitions. [2024-11-28 02:44:59,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-28 02:44:59,201 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:44:59,202 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:44:59,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 02:44:59,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:59,406 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:44:59,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:44:59,406 INFO L85 PathProgramCache]: Analyzing trace with hash 242751718, now seen corresponding path program 1 times [2024-11-28 02:44:59,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:44:59,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [715137845] [2024-11-28 02:44:59,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:44:59,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:44:59,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:44:59,410 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:44:59,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 02:44:59,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:44:59,715 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 02:44:59,718 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:45:00,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:45:00,051 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:45:00,051 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:45:00,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715137845] [2024-11-28 02:45:00,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715137845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:45:00,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:45:00,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:45:00,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694605392] [2024-11-28 02:45:00,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:45:00,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:45:00,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:45:00,052 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:45:00,052 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:45:00,053 INFO L87 Difference]: Start difference. First operand 351 states and 428 transitions. Second operand has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:45:00,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:45:00,211 INFO L93 Difference]: Finished difference Result 360 states and 438 transitions. [2024-11-28 02:45:00,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:45:00,211 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-28 02:45:00,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:45:00,215 INFO L225 Difference]: With dead ends: 360 [2024-11-28 02:45:00,215 INFO L226 Difference]: Without dead ends: 360 [2024-11-28 02:45:00,215 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:45:00,216 INFO L435 NwaCegarLoop]: 280 mSDtfsCounter, 8 mSDsluCounter, 1157 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1437 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:45:00,216 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1437 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:45:00,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-11-28 02:45:00,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 359. [2024-11-28 02:45:00,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 333 states have (on average 1.2102102102102101) internal successors, (403), 339 states have internal predecessors, (403), 19 states have call successors, (19), 7 states have call predecessors, (19), 5 states have return successors, (15), 13 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 02:45:00,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 437 transitions. [2024-11-28 02:45:00,228 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 437 transitions. Word has length 51 [2024-11-28 02:45:00,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:45:00,229 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 437 transitions. [2024-11-28 02:45:00,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:45:00,229 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 437 transitions. [2024-11-28 02:45:00,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-28 02:45:00,230 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:45:00,231 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:45:00,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 02:45:00,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:45:00,432 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:45:00,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:00,432 INFO L85 PathProgramCache]: Analyzing trace with hash -456677214, now seen corresponding path program 1 times [2024-11-28 02:45:00,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:45:00,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1067487341] [2024-11-28 02:45:00,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:00,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:45:00,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:45:00,436 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:45:00,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 02:45:00,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:00,861 INFO L256 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:45:00,865 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:45:00,983 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:45:00,983 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:45:00,983 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:45:00,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067487341] [2024-11-28 02:45:00,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067487341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:45:00,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:45:00,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:45:00,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479494278] [2024-11-28 02:45:00,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:45:00,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:45:00,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:45:00,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:45:00,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:45:00,986 INFO L87 Difference]: Start difference. First operand 359 states and 437 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 02:45:01,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:45:01,322 INFO L93 Difference]: Finished difference Result 947 states and 1176 transitions. [2024-11-28 02:45:01,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:45:01,323 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 71 [2024-11-28 02:45:01,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:45:01,328 INFO L225 Difference]: With dead ends: 947 [2024-11-28 02:45:01,328 INFO L226 Difference]: Without dead ends: 947 [2024-11-28 02:45:01,329 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:45:01,329 INFO L435 NwaCegarLoop]: 634 mSDtfsCounter, 521 mSDsluCounter, 846 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 1480 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:45:01,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 1480 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:45:01,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2024-11-28 02:45:01,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 890. [2024-11-28 02:45:01,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 890 states, 844 states have (on average 1.2322274881516588) internal successors, (1040), 851 states have internal predecessors, (1040), 33 states have call successors, (33), 12 states have call predecessors, (33), 11 states have return successors, (32), 26 states have call predecessors, (32), 29 states have call successors, (32) [2024-11-28 02:45:01,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 890 states to 890 states and 1105 transitions. [2024-11-28 02:45:01,372 INFO L78 Accepts]: Start accepts. Automaton has 890 states and 1105 transitions. Word has length 71 [2024-11-28 02:45:01,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:45:01,374 INFO L471 AbstractCegarLoop]: Abstraction has 890 states and 1105 transitions. [2024-11-28 02:45:01,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 02:45:01,375 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states and 1105 transitions. [2024-11-28 02:45:01,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-28 02:45:01,376 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:45:01,376 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:45:01,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 02:45:01,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:45:01,577 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:45:01,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:01,578 INFO L85 PathProgramCache]: Analyzing trace with hash -36727708, now seen corresponding path program 1 times [2024-11-28 02:45:01,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:45:01,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [475337195] [2024-11-28 02:45:01,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:01,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:45:01,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:45:01,580 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:45:01,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 02:45:02,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:02,111 INFO L256 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:45:02,117 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:45:02,180 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 02:45:02,180 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:45:02,180 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:45:02,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475337195] [2024-11-28 02:45:02,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475337195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:45:02,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:45:02,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:45:02,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712390258] [2024-11-28 02:45:02,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:45:02,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:45:02,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:45:02,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:45:02,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:45:02,183 INFO L87 Difference]: Start difference. First operand 890 states and 1105 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 02:45:02,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:45:02,262 INFO L93 Difference]: Finished difference Result 902 states and 1120 transitions. [2024-11-28 02:45:02,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:45:02,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 97 [2024-11-28 02:45:02,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:45:02,268 INFO L225 Difference]: With dead ends: 902 [2024-11-28 02:45:02,268 INFO L226 Difference]: Without dead ends: 902 [2024-11-28 02:45:02,269 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:45:02,269 INFO L435 NwaCegarLoop]: 283 mSDtfsCounter, 0 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:45:02,270 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 841 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:45:02,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2024-11-28 02:45:02,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 902. [2024-11-28 02:45:02,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 853 states have (on average 1.2332942555685815) internal successors, (1052), 863 states have internal predecessors, (1052), 33 states have call successors, (33), 12 states have call predecessors, (33), 14 states have return successors, (35), 26 states have call predecessors, (35), 29 states have call successors, (35) [2024-11-28 02:45:02,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1120 transitions. [2024-11-28 02:45:02,301 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1120 transitions. Word has length 97 [2024-11-28 02:45:02,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:45:02,301 INFO L471 AbstractCegarLoop]: Abstraction has 902 states and 1120 transitions. [2024-11-28 02:45:02,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 02:45:02,302 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1120 transitions. [2024-11-28 02:45:02,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 02:45:02,303 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:45:02,303 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:45:02,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 02:45:02,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:45:02,504 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:45:02,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:02,504 INFO L85 PathProgramCache]: Analyzing trace with hash 870411298, now seen corresponding path program 1 times [2024-11-28 02:45:02,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:45:02,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1807551912] [2024-11-28 02:45:02,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:02,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:45:02,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:45:02,507 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:45:02,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 02:45:03,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:03,047 INFO L256 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 02:45:03,051 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:45:03,533 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 02:45:03,533 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:45:04,003 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 02:45:04,003 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:45:04,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807551912] [2024-11-28 02:45:04,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807551912] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:45:04,004 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:45:04,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 14 [2024-11-28 02:45:04,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469535549] [2024-11-28 02:45:04,004 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:45:04,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 02:45:04,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:45:04,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 02:45:04,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:45:04,006 INFO L87 Difference]: Start difference. First operand 902 states and 1120 transitions. Second operand has 14 states, 14 states have (on average 11.571428571428571) internal successors, (162), 12 states have internal predecessors, (162), 8 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) [2024-11-28 02:45:07,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:45:07,443 INFO L93 Difference]: Finished difference Result 3400 states and 4264 transitions. [2024-11-28 02:45:07,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-28 02:45:07,444 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 11.571428571428571) internal successors, (162), 12 states have internal predecessors, (162), 8 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) Word has length 99 [2024-11-28 02:45:07,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:45:07,463 INFO L225 Difference]: With dead ends: 3400 [2024-11-28 02:45:07,465 INFO L226 Difference]: Without dead ends: 3400 [2024-11-28 02:45:07,466 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=245, Invalid=747, Unknown=0, NotChecked=0, Total=992 [2024-11-28 02:45:07,467 INFO L435 NwaCegarLoop]: 979 mSDtfsCounter, 3353 mSDsluCounter, 6434 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3384 SdHoareTripleChecker+Valid, 7413 SdHoareTripleChecker+Invalid, 1301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:45:07,467 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3384 Valid, 7413 Invalid, 1301 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [271 Valid, 1030 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-28 02:45:07,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3400 states. [2024-11-28 02:45:07,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3400 to 2518. [2024-11-28 02:45:07,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2518 states, 2418 states have (on average 1.239867659222498) internal successors, (2998), 2436 states have internal predecessors, (2998), 69 states have call successors, (69), 26 states have call predecessors, (69), 29 states have return successors, (74), 55 states have call predecessors, (74), 65 states have call successors, (74) [2024-11-28 02:45:07,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2518 states to 2518 states and 3141 transitions. [2024-11-28 02:45:07,552 INFO L78 Accepts]: Start accepts. Automaton has 2518 states and 3141 transitions. Word has length 99 [2024-11-28 02:45:07,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:45:07,554 INFO L471 AbstractCegarLoop]: Abstraction has 2518 states and 3141 transitions. [2024-11-28 02:45:07,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.571428571428571) internal successors, (162), 12 states have internal predecessors, (162), 8 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) [2024-11-28 02:45:07,554 INFO L276 IsEmpty]: Start isEmpty. Operand 2518 states and 3141 transitions. [2024-11-28 02:45:07,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-28 02:45:07,556 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:45:07,556 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:45:07,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 02:45:07,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:45:07,757 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:45:07,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:07,761 INFO L85 PathProgramCache]: Analyzing trace with hash -295317679, now seen corresponding path program 1 times [2024-11-28 02:45:07,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:45:07,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1570509620] [2024-11-28 02:45:07,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:07,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:45:07,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:45:07,764 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:45:07,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 02:45:08,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:08,303 INFO L256 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:45:08,307 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:45:08,326 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 02:45:08,327 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 02:45:08,327 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 02:45:08,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2024-11-28 02:45:08,421 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:45:08,422 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-11-28 02:45:08,438 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-28 02:45:08,438 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:45:08,438 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:45:08,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570509620] [2024-11-28 02:45:08,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570509620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:45:08,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:45:08,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:45:08,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895628401] [2024-11-28 02:45:08,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:45:08,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:45:08,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:45:08,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:45:08,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:45:08,439 INFO L87 Difference]: Start difference. First operand 2518 states and 3141 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 02:45:09,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:45:09,012 INFO L93 Difference]: Finished difference Result 3545 states and 4494 transitions. [2024-11-28 02:45:09,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:45:09,012 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 107 [2024-11-28 02:45:09,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:45:09,024 INFO L225 Difference]: With dead ends: 3545 [2024-11-28 02:45:09,024 INFO L226 Difference]: Without dead ends: 3545 [2024-11-28 02:45:09,025 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:45:09,025 INFO L435 NwaCegarLoop]: 266 mSDtfsCounter, 220 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:45:09,025 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 784 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:45:09,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3545 states. [2024-11-28 02:45:09,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3545 to 2534. [2024-11-28 02:45:09,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2534 states, 2434 states have (on average 1.238290879211175) internal successors, (3014), 2452 states have internal predecessors, (3014), 69 states have call successors, (69), 26 states have call predecessors, (69), 29 states have return successors, (74), 55 states have call predecessors, (74), 65 states have call successors, (74) [2024-11-28 02:45:09,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2534 states to 2534 states and 3157 transitions. [2024-11-28 02:45:09,100 INFO L78 Accepts]: Start accepts. Automaton has 2534 states and 3157 transitions. Word has length 107 [2024-11-28 02:45:09,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:45:09,100 INFO L471 AbstractCegarLoop]: Abstraction has 2534 states and 3157 transitions. [2024-11-28 02:45:09,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 02:45:09,101 INFO L276 IsEmpty]: Start isEmpty. Operand 2534 states and 3157 transitions. [2024-11-28 02:45:09,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-28 02:45:09,102 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:45:09,102 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:45:09,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-28 02:45:09,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:45:09,303 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:45:09,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:09,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1836113047, now seen corresponding path program 1 times [2024-11-28 02:45:09,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:45:09,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1909978364] [2024-11-28 02:45:09,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:09,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:45:09,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:45:09,307 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:45:09,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 02:45:09,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:09,979 INFO L256 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:45:09,983 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:45:10,078 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 29 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-28 02:45:10,080 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:45:10,353 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:45:10,353 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:45:10,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909978364] [2024-11-28 02:45:10,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1909978364] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:45:10,354 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:45:10,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-28 02:45:10,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892060673] [2024-11-28 02:45:10,354 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:45:10,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:45:10,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:45:10,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:45:10,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:45:10,356 INFO L87 Difference]: Start difference. First operand 2534 states and 3157 transitions. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-28 02:45:10,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:45:10,636 INFO L93 Difference]: Finished difference Result 2612 states and 3271 transitions. [2024-11-28 02:45:10,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 02:45:10,638 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 114 [2024-11-28 02:45:10,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:45:10,649 INFO L225 Difference]: With dead ends: 2612 [2024-11-28 02:45:10,649 INFO L226 Difference]: Without dead ends: 2612 [2024-11-28 02:45:10,649 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:45:10,650 INFO L435 NwaCegarLoop]: 281 mSDtfsCounter, 5 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:45:10,650 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 840 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:45:10,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2612 states. [2024-11-28 02:45:10,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2612 to 2594. [2024-11-28 02:45:10,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2594 states, 2488 states have (on average 1.247588424437299) internal successors, (3104), 2506 states have internal predecessors, (3104), 69 states have call successors, (69), 32 states have call predecessors, (69), 35 states have return successors, (80), 55 states have call predecessors, (80), 65 states have call successors, (80) [2024-11-28 02:45:10,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2594 states to 2594 states and 3253 transitions. [2024-11-28 02:45:10,758 INFO L78 Accepts]: Start accepts. Automaton has 2594 states and 3253 transitions. Word has length 114 [2024-11-28 02:45:10,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:45:10,758 INFO L471 AbstractCegarLoop]: Abstraction has 2594 states and 3253 transitions. [2024-11-28 02:45:10,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-28 02:45:10,760 INFO L276 IsEmpty]: Start isEmpty. Operand 2594 states and 3253 transitions. [2024-11-28 02:45:10,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-28 02:45:10,763 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:45:10,763 INFO L218 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:45:10,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-28 02:45:10,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:45:10,963 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:45:10,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:10,964 INFO L85 PathProgramCache]: Analyzing trace with hash -792457529, now seen corresponding path program 2 times [2024-11-28 02:45:10,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:45:10,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1687701582] [2024-11-28 02:45:10,965 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:45:10,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:45:10,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:45:10,970 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:45:10,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 02:48:15,776 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:48:15,777 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:48:15,814 INFO L256 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 02:48:15,818 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:48:15,951 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 36 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:48:15,951 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:48:16,272 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 02:48:16,272 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:48:16,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687701582] [2024-11-28 02:48:16,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687701582] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:48:16,273 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:48:16,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-28 02:48:16,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291165486] [2024-11-28 02:48:16,273 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:48:16,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:48:16,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:48:16,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:48:16,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:48:16,275 INFO L87 Difference]: Start difference. First operand 2594 states and 3253 transitions. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-28 02:48:16,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:48:16,813 INFO L93 Difference]: Finished difference Result 2654 states and 3325 transitions. [2024-11-28 02:48:16,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 02:48:16,814 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 118 [2024-11-28 02:48:16,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:48:16,822 INFO L225 Difference]: With dead ends: 2654 [2024-11-28 02:48:16,822 INFO L226 Difference]: Without dead ends: 2636 [2024-11-28 02:48:16,822 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:48:16,823 INFO L435 NwaCegarLoop]: 284 mSDtfsCounter, 6 mSDsluCounter, 1391 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1675 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:48:16,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1675 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:48:16,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states. [2024-11-28 02:48:16,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 2618. [2024-11-28 02:48:16,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2618 states, 2512 states have (on average 1.25) internal successors, (3140), 2530 states have internal predecessors, (3140), 69 states have call successors, (69), 32 states have call predecessors, (69), 35 states have return successors, (74), 55 states have call predecessors, (74), 65 states have call successors, (74) [2024-11-28 02:48:16,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2618 states to 2618 states and 3283 transitions. [2024-11-28 02:48:16,922 INFO L78 Accepts]: Start accepts. Automaton has 2618 states and 3283 transitions. Word has length 118 [2024-11-28 02:48:16,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:48:16,922 INFO L471 AbstractCegarLoop]: Abstraction has 2618 states and 3283 transitions. [2024-11-28 02:48:16,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-28 02:48:16,923 INFO L276 IsEmpty]: Start isEmpty. Operand 2618 states and 3283 transitions. [2024-11-28 02:48:16,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-28 02:48:16,924 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:48:16,924 INFO L218 NwaCegarLoop]: trace histogram [10, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:48:16,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-28 02:48:17,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:48:17,125 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:48:17,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:48:17,126 INFO L85 PathProgramCache]: Analyzing trace with hash 958324999, now seen corresponding path program 3 times [2024-11-28 02:48:17,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:48:17,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1425976519] [2024-11-28 02:48:17,126 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:48:17,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:48:17,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:48:17,128 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:48:17,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839d7bc4-bc5a-4654-a58c-ec426222418f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process