./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd --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 be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:00:37,834 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:00:37,900 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-13 16:00:37,909 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:00:37,913 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:00:37,944 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:00:37,945 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:00:37,945 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:00:37,946 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:00:37,946 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:00:37,946 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:00:37,946 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:00:37,946 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:00:37,947 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:00:37,947 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:00:37,947 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:00:37,947 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:00:37,947 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:00:37,947 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:00:37,948 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:00:37,948 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:00:37,948 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:00:37,948 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 16:00:37,948 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 16:00:37,948 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:00:37,948 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:00:37,948 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 16:00:37,949 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:00:37,949 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:00:37,949 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:00:37,949 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:00:37,949 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:00:37,949 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:00:37,950 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:00:37,950 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 16:00:37,950 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:00:37,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:00:37,950 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:00:37,950 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:00:37,950 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:00:37,951 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:00:37,951 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:00:37,951 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:00:37,951 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:00:37,951 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:00:37,951 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_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd 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 -> be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 [2024-11-13 16:00:38,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:00:38,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:00:38,276 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:00:38,277 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:00:38,278 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:00:38,279 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-2.i Unable to find full path for "g++" [2024-11-13 16:00:40,352 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:00:40,791 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:00:40,792 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-2.i [2024-11-13 16:00:40,821 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/data/e0583fe05/f5c838d02e03453c9d639d6c24e8af92/FLAG9404f7916 [2024-11-13 16:00:40,955 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/data/e0583fe05/f5c838d02e03453c9d639d6c24e8af92 [2024-11-13 16:00:40,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:00:40,970 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:00:40,972 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:00:40,972 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:00:40,981 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:00:40,982 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:00:40" (1/1) ... [2024-11-13 16:00:40,984 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f18c794 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:00:40, skipping insertion in model container [2024-11-13 16:00:40,987 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:00:40" (1/1) ... [2024-11-13 16:00:41,063 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:00:41,795 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:41,866 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:41,877 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:41,885 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:41,896 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:41,980 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:41,983 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:41,987 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:41,991 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:41,996 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:41,999 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:42,002 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:42,003 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:42,009 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:42,011 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:42,014 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:42,015 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:42,017 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:42,018 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:42,023 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:42,032 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:00:42,057 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) [2024-11-13 16:00:42,057 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2c39141c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:00:42, skipping insertion in model container [2024-11-13 16:00:42,058 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:00:42,058 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-13 16:00:42,061 INFO L158 Benchmark]: Toolchain (without parser) took 1089.99ms. Allocated memory is still 117.4MB. Free memory was 90.5MB in the beginning and 70.5MB in the end (delta: 20.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 16:00:42,061 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 117.4MB. Free memory is still 74.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:00:42,062 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1086.62ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 70.5MB in the end (delta: 19.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 16:00:42,064 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 117.4MB. Free memory is still 74.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1086.62ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 70.5MB in the end (delta: 19.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 750]: 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_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd --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 be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:00:45,200 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:00:45,384 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2024-11-13 16:00:45,398 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:00:45,401 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:00:45,429 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:00:45,430 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:00:45,431 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:00:45,431 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:00:45,431 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:00:45,432 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:00:45,432 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:00:45,432 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:00:45,433 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:00:45,433 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:00:45,433 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:00:45,433 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:00:45,433 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:00:45,434 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:00:45,434 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:00:45,434 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:00:45,434 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:00:45,434 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 16:00:45,434 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 16:00:45,435 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:00:45,435 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:00:45,435 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 16:00:45,435 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 16:00:45,435 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:00:45,436 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 16:00:45,436 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:00:45,436 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:00:45,436 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:00:45,436 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:00:45,437 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:00:45,437 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:00:45,437 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 16:00:45,437 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:00:45,437 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:00:45,438 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:00:45,438 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:00:45,438 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 16:00:45,438 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 16:00:45,438 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:00:45,438 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:00:45,438 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:00:45,439 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:00:45,439 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_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd 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 -> be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 [2024-11-13 16:00:45,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:00:45,829 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:00:45,832 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:00:45,833 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:00:45,834 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:00:45,836 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-2.i Unable to find full path for "g++" [2024-11-13 16:00:48,000 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:00:48,562 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:00:48,563 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-2.i [2024-11-13 16:00:48,596 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/data/afb04dbf6/caa644c7eeeb461199f096fc730b0a82/FLAG6fac42eac [2024-11-13 16:00:48,626 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/data/afb04dbf6/caa644c7eeeb461199f096fc730b0a82 [2024-11-13 16:00:48,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:00:48,632 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:00:48,636 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:00:48,638 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:00:48,644 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:00:48,645 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:00:48" (1/1) ... [2024-11-13 16:00:48,646 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@210599ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:00:48, skipping insertion in model container [2024-11-13 16:00:48,646 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:00:48" (1/1) ... [2024-11-13 16:00:48,727 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:00:49,333 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,402 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,409 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,417 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,435 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,559 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,560 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,569 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,574 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,585 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,596 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,597 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,603 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,623 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,625 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,629 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,633 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,635 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,636 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,640 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,654 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:00:49,682 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-13 16:00:49,701 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:00:49,762 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,801 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,806 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,810 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,817 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,859 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,859 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,863 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,863 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,866 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,867 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,868 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,870 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,875 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,876 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,879 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,880 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,881 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,882 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,886 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:00:49,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:00:49,895 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:00:50,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:00:50,114 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:00:50,115 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:00:50 WrapperNode [2024-11-13 16:00:50,115 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:00:50,117 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:00:50,117 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:00:50,117 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:00:50,127 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:00:50" (1/1) ... [2024-11-13 16:00:50,166 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:00:50" (1/1) ... [2024-11-13 16:00:50,260 INFO L138 Inliner]: procedures = 180, calls = 325, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1149 [2024-11-13 16:00:50,260 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:00:50,262 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:00:50,263 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:00:50,263 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:00:50,276 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:00:50" (1/1) ... [2024-11-13 16:00:50,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:00:50" (1/1) ... [2024-11-13 16:00:50,329 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:00:50" (1/1) ... [2024-11-13 16:00:50,436 INFO L175 MemorySlicer]: Split 302 memory accesses to 3 slices as follows [2, 266, 34]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 62 writes are split as follows [0, 58, 4]. [2024-11-13 16:00:50,440 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:00:50" (1/1) ... [2024-11-13 16:00:50,441 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:00:50" (1/1) ... [2024-11-13 16:00:50,504 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:00:50" (1/1) ... [2024-11-13 16:00:50,521 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:00:50" (1/1) ... [2024-11-13 16:00:50,535 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:00:50" (1/1) ... [2024-11-13 16:00:50,544 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:00:50" (1/1) ... [2024-11-13 16:00:50,568 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:00:50,572 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:00:50,575 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:00:50,575 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:00:50,577 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:00:50" (1/1) ... [2024-11-13 16:00:50,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:00:50,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:00:50,621 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:00:50,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:00:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-13 16:00:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-13 16:00:50,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-13 16:00:50,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-13 16:00:50,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-13 16:00:50,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-13 16:00:50,660 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 16:00:50,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 16:00:50,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-13 16:00:50,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-13 16:00:50,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-13 16:00:50,660 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-13 16:00:50,660 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-13 16:00:50,660 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-13 16:00:50,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 16:00:50,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:00:50,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-13 16:00:50,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-13 16:00:50,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-13 16:00:50,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 16:00:50,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-13 16:00:50,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-13 16:00:50,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-13 16:00:50,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-13 16:00:50,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-13 16:00:50,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-13 16:00:50,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 16:00:50,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 16:00:50,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-13 16:00:50,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-13 16:00:50,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:00:50,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:00:51,014 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:00:51,017 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:01:00,394 INFO L? ?]: Removed 143 outVars from TransFormulas that were not future-live. [2024-11-13 16:01:00,395 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:01:00,412 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:01:00,412 INFO L316 CfgBuilder]: Removed 72 assume(true) statements. [2024-11-13 16:01:00,413 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:01:00 BoogieIcfgContainer [2024-11-13 16:01:00,413 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:01:00,416 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:01:00,416 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:01:00,422 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:01:00,422 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:00:48" (1/3) ... [2024-11-13 16:01:00,423 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a8cfd1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:01:00, skipping insertion in model container [2024-11-13 16:01:00,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:00:50" (2/3) ... [2024-11-13 16:01:00,423 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a8cfd1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:01:00, skipping insertion in model container [2024-11-13 16:01:00,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:01:00" (3/3) ... [2024-11-13 16:01:00,425 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_nondet_test3-2.i [2024-11-13 16:01:00,444 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:01:00,451 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_FNV_nondet_test3-2.i that has 5 procedures, 239 locations, 1 initial locations, 43 loop locations, and 2 error locations. [2024-11-13 16:01:00,505 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:01:00,521 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;@24121f2c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:01:00,521 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 16:01:00,529 INFO L276 IsEmpty]: Start isEmpty. Operand has 231 states, 221 states have (on average 1.665158371040724) internal successors, (368), 224 states have internal predecessors, (368), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 16:01:00,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-13 16:01:00,536 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:01:00,536 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-13 16:01:00,537 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 16:01:00,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:00,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1665291, now seen corresponding path program 1 times [2024-11-13 16:01:00,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:01:00,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [733766726] [2024-11-13 16:01:00,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:00,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:00,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:01:00,558 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:01:00,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 16:01:00,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:00,827 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 16:01:00,834 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:01:00,978 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_16| (_ BitVec 32))) (and (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_16| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_16|)))) is different from true [2024-11-13 16:01:00,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:01:00,990 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:01:00,991 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:01:00,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733766726] [2024-11-13 16:01:00,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733766726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:01:00,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:01:00,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:01:00,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902478050] [2024-11-13 16:01:00,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:01:01,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:01:01,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:01:01,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:01:01,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-13 16:01:01,038 INFO L87 Difference]: Start difference. First operand has 231 states, 221 states have (on average 1.665158371040724) internal successors, (368), 224 states have internal predecessors, (368), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:01:05,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 16:01:06,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 16:01:06,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:01:06,704 INFO L93 Difference]: Finished difference Result 353 states and 465 transitions. [2024-11-13 16:01:06,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:01:06,716 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-13 16:01:06,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:01:06,727 INFO L225 Difference]: With dead ends: 353 [2024-11-13 16:01:06,727 INFO L226 Difference]: Without dead ends: 350 [2024-11-13 16:01:06,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-13 16:01:06,733 INFO L432 NwaCegarLoop]: 293 mSDtfsCounter, 156 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 466 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-13 16:01:06,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 567 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 1 Unknown, 466 Unchecked, 5.6s Time] [2024-11-13 16:01:06,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-13 16:01:06,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 228. [2024-11-13 16:01:06,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 219 states have (on average 1.3059360730593608) internal successors, (286), 221 states have internal predecessors, (286), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 16:01:06,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 296 transitions. [2024-11-13 16:01:06,829 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 296 transitions. Word has length 4 [2024-11-13 16:01:06,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:01:06,830 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 296 transitions. [2024-11-13 16:01:06,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:01:06,830 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 296 transitions. [2024-11-13 16:01:06,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-13 16:01:06,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:01:06,832 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:01:06,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 16:01:07,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:07,033 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 16:01:07,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:07,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1712717841, now seen corresponding path program 1 times [2024-11-13 16:01:07,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:01:07,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [82593310] [2024-11-13 16:01:07,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:07,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:07,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:01:07,039 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:01:07,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 16:01:07,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:07,304 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 16:01:07,307 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:01:07,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:01:07,492 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:01:07,492 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:01:07,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82593310] [2024-11-13 16:01:07,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [82593310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:01:07,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:01:07,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 16:01:07,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140666306] [2024-11-13 16:01:07,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:01:07,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:01:07,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:01:07,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:01:07,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:01:07,500 INFO L87 Difference]: Start difference. First operand 228 states and 296 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-11-13 16:01:11,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 16:01:15,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 16:01:16,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:01:16,248 INFO L93 Difference]: Finished difference Result 374 states and 487 transitions. [2024-11-13 16:01:16,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:01:16,252 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 15 [2024-11-13 16:01:16,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:01:16,255 INFO L225 Difference]: With dead ends: 374 [2024-11-13 16:01:16,255 INFO L226 Difference]: Without dead ends: 374 [2024-11-13 16:01:16,256 INFO L431 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 [2024-11-13 16:01:16,256 INFO L432 NwaCegarLoop]: 302 mSDtfsCounter, 181 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2024-11-13 16:01:16,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 829 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 112 Invalid, 1 Unknown, 0 Unchecked, 8.7s Time] [2024-11-13 16:01:16,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-11-13 16:01:16,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 343. [2024-11-13 16:01:16,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 333 states have (on average 1.3063063063063063) internal successors, (435), 336 states have internal predecessors, (435), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 16:01:16,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 447 transitions. [2024-11-13 16:01:16,328 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 447 transitions. Word has length 15 [2024-11-13 16:01:16,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:01:16,329 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 447 transitions. [2024-11-13 16:01:16,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-11-13 16:01:16,329 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 447 transitions. [2024-11-13 16:01:16,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-13 16:01:16,329 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:01:16,330 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:01:16,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-13 16:01:16,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:16,530 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 16:01:16,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:16,532 INFO L85 PathProgramCache]: Analyzing trace with hash -423059553, now seen corresponding path program 1 times [2024-11-13 16:01:16,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:01:16,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1487563916] [2024-11-13 16:01:16,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:16,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:16,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:01:16,534 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:01:16,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 16:01:16,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:16,784 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 16:01:16,787 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:01:17,062 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_17| (_ BitVec 32))) (and (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_17| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_17|)))) is different from true [2024-11-13 16:01:17,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:01:17,063 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:01:17,063 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:01:17,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487563916] [2024-11-13 16:01:17,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1487563916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:01:17,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:01:17,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:01:17,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383664473] [2024-11-13 16:01:17,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:01:17,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:01:17,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:01:17,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:01:17,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-13 16:01:17,066 INFO L87 Difference]: Start difference. First operand 343 states and 447 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:01:21,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 16:01:22,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:01:22,307 INFO L93 Difference]: Finished difference Result 436 states and 566 transitions. [2024-11-13 16:01:22,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:01:22,314 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-13 16:01:22,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:01:22,316 INFO L225 Difference]: With dead ends: 436 [2024-11-13 16:01:22,316 INFO L226 Difference]: Without dead ends: 428 [2024-11-13 16:01:22,316 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-13 16:01:22,317 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 86 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 398 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-13 16:01:22,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 563 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 1 Unknown, 398 Unchecked, 5.2s Time] [2024-11-13 16:01:22,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2024-11-13 16:01:22,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 388. [2024-11-13 16:01:22,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 377 states have (on average 1.3050397877984086) internal successors, (492), 380 states have internal predecessors, (492), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-13 16:01:22,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 506 transitions. [2024-11-13 16:01:22,338 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 506 transitions. Word has length 16 [2024-11-13 16:01:22,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:01:22,338 INFO L471 AbstractCegarLoop]: Abstraction has 388 states and 506 transitions. [2024-11-13 16:01:22,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:01:22,338 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 506 transitions. [2024-11-13 16:01:22,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-13 16:01:22,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:01:22,340 INFO L215 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] [2024-11-13 16:01:22,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-13 16:01:22,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:22,545 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 16:01:22,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:22,545 INFO L85 PathProgramCache]: Analyzing trace with hash -611743992, now seen corresponding path program 1 times [2024-11-13 16:01:22,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:01:22,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [150682637] [2024-11-13 16:01:22,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:22,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:22,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:01:22,550 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:01:22,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 16:01:22,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:22,821 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 16:01:22,824 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:01:22,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:01:22,855 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:01:22,856 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:01:22,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150682637] [2024-11-13 16:01:22,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150682637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:01:22,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:01:22,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:01:22,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528537734] [2024-11-13 16:01:22,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:01:22,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:01:22,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:01:22,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:01:22,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:01:22,857 INFO L87 Difference]: Start difference. First operand 388 states and 506 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2024-11-13 16:01:23,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:01:23,058 INFO L93 Difference]: Finished difference Result 448 states and 566 transitions. [2024-11-13 16:01:23,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:01:23,058 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 51 [2024-11-13 16:01:23,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:01:23,061 INFO L225 Difference]: With dead ends: 448 [2024-11-13 16:01:23,061 INFO L226 Difference]: Without dead ends: 448 [2024-11-13 16:01:23,061 INFO L431 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 [2024-11-13 16:01:23,062 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 9 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 537 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 [2024-11-13 16:01:23,063 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 537 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 16:01:23,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2024-11-13 16:01:23,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 448. [2024-11-13 16:01:23,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 437 states have (on average 1.263157894736842) internal successors, (552), 440 states have internal predecessors, (552), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-13 16:01:23,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 566 transitions. [2024-11-13 16:01:23,095 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 566 transitions. Word has length 51 [2024-11-13 16:01:23,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:01:23,096 INFO L471 AbstractCegarLoop]: Abstraction has 448 states and 566 transitions. [2024-11-13 16:01:23,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2024-11-13 16:01:23,096 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 566 transitions. [2024-11-13 16:01:23,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-13 16:01:23,098 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:01:23,098 INFO L215 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] [2024-11-13 16:01:23,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 16:01:23,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:23,299 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 16:01:23,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:23,299 INFO L85 PathProgramCache]: Analyzing trace with hash -436231924, now seen corresponding path program 1 times [2024-11-13 16:01:23,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:01:23,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [567857106] [2024-11-13 16:01:23,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:23,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:23,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:01:23,303 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:01:23,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 16:01:23,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:23,566 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 16:01:23,570 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:01:23,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:01:23,627 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:01:23,628 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:01:23,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567857106] [2024-11-13 16:01:23,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [567857106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:01:23,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:01:23,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 16:01:23,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353179550] [2024-11-13 16:01:23,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:01:23,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:01:23,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:01:23,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:01:23,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:01:23,631 INFO L87 Difference]: Start difference. First operand 448 states and 566 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-11-13 16:01:23,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:01:23,829 INFO L93 Difference]: Finished difference Result 397 states and 482 transitions. [2024-11-13 16:01:23,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 16:01:23,830 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 51 [2024-11-13 16:01:23,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:01:23,832 INFO L225 Difference]: With dead ends: 397 [2024-11-13 16:01:23,832 INFO L226 Difference]: Without dead ends: 397 [2024-11-13 16:01:23,832 INFO L431 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 [2024-11-13 16:01:23,835 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 32 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 16:01:23,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 775 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 16:01:23,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-11-13 16:01:23,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2024-11-13 16:01:23,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 386 states have (on average 1.2124352331606219) internal successors, (468), 389 states have internal predecessors, (468), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-13 16:01:23,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 482 transitions. [2024-11-13 16:01:23,856 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 482 transitions. Word has length 51 [2024-11-13 16:01:23,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:01:23,857 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 482 transitions. [2024-11-13 16:01:23,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-11-13 16:01:23,858 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 482 transitions. [2024-11-13 16:01:23,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-13 16:01:23,862 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:01:23,862 INFO L215 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] [2024-11-13 16:01:23,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 16:01:24,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:24,064 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 16:01:24,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:24,064 INFO L85 PathProgramCache]: Analyzing trace with hash 40984382, now seen corresponding path program 1 times [2024-11-13 16:01:24,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:01:24,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [882865510] [2024-11-13 16:01:24,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:24,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:24,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:01:24,068 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:01:24,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 16:01:24,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:24,348 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 16:01:24,353 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:01:24,383 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-13 16:01:24,385 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-13 16:01:24,386 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-13 16:01:24,399 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 [2024-11-13 16:01:24,557 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 16:01:24,557 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 [2024-11-13 16:01:24,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:01:24,672 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:01:24,672 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:01:24,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882865510] [2024-11-13 16:01:24,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [882865510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:01:24,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:01:24,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 16:01:24,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396708192] [2024-11-13 16:01:24,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:01:24,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 16:01:24,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:01:24,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 16:01:24,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:01:24,675 INFO L87 Difference]: Start difference. First operand 397 states and 482 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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) [2024-11-13 16:01:25,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:01:25,671 INFO L93 Difference]: Finished difference Result 398 states and 492 transitions. [2024-11-13 16:01:25,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 16:01:25,673 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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 51 [2024-11-13 16:01:25,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:01:25,675 INFO L225 Difference]: With dead ends: 398 [2024-11-13 16:01:25,676 INFO L226 Difference]: Without dead ends: 395 [2024-11-13 16:01:25,676 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:01:25,677 INFO L432 NwaCegarLoop]: 278 mSDtfsCounter, 108 mSDsluCounter, 808 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 1086 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 16:01:25,677 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 1086 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 16:01:25,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2024-11-13 16:01:25,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 348. [2024-11-13 16:01:25,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 338 states have (on average 1.2337278106508875) internal successors, (417), 341 states have internal predecessors, (417), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 16:01:25,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 429 transitions. [2024-11-13 16:01:25,692 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 429 transitions. Word has length 51 [2024-11-13 16:01:25,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:01:25,692 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 429 transitions. [2024-11-13 16:01:25,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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) [2024-11-13 16:01:25,693 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 429 transitions. [2024-11-13 16:01:25,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-13 16:01:25,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:01:25,696 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:01:25,725 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 16:01:25,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:25,897 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 16:01:25,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:25,897 INFO L85 PathProgramCache]: Analyzing trace with hash -220489468, now seen corresponding path program 1 times [2024-11-13 16:01:25,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:01:25,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [906164459] [2024-11-13 16:01:25,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:25,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:25,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:01:25,902 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:01:25,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 16:01:26,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:26,544 INFO L255 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 16:01:26,549 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:01:26,585 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:01:26,586 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:01:26,586 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:01:26,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906164459] [2024-11-13 16:01:26,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [906164459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:01:26,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:01:26,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:01:26,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121240048] [2024-11-13 16:01:26,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:01:26,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:01:26,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:01:26,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:01:26,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:01:26,589 INFO L87 Difference]: Start difference. First operand 348 states and 429 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:01:26,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:01:26,814 INFO L93 Difference]: Finished difference Result 388 states and 469 transitions. [2024-11-13 16:01:26,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:01:26,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 86 [2024-11-13 16:01:26,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:01:26,817 INFO L225 Difference]: With dead ends: 388 [2024-11-13 16:01:26,817 INFO L226 Difference]: Without dead ends: 388 [2024-11-13 16:01:26,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:01:26,818 INFO L432 NwaCegarLoop]: 265 mSDtfsCounter, 8 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 515 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 [2024-11-13 16:01:26,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 515 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 16:01:26,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-11-13 16:01:26,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 388. [2024-11-13 16:01:26,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 378 states have (on average 1.208994708994709) internal successors, (457), 381 states have internal predecessors, (457), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 16:01:26,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 469 transitions. [2024-11-13 16:01:26,833 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 469 transitions. Word has length 86 [2024-11-13 16:01:26,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:01:26,834 INFO L471 AbstractCegarLoop]: Abstraction has 388 states and 469 transitions. [2024-11-13 16:01:26,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:01:26,834 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 469 transitions. [2024-11-13 16:01:26,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-13 16:01:26,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:01:26,855 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:01:26,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-13 16:01:27,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:27,056 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 16:01:27,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:27,057 INFO L85 PathProgramCache]: Analyzing trace with hash -899761722, now seen corresponding path program 1 times [2024-11-13 16:01:27,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:01:27,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [759349113] [2024-11-13 16:01:27,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:27,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:27,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:01:27,062 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:01:27,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 16:01:27,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:27,665 INFO L255 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 16:01:27,669 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:01:27,717 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:01:27,717 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:01:27,718 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:01:27,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759349113] [2024-11-13 16:01:27,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [759349113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:01:27,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:01:27,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 16:01:27,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772957465] [2024-11-13 16:01:27,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:01:27,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:01:27,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:01:27,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:01:27,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:01:27,720 INFO L87 Difference]: Start difference. First operand 388 states and 469 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:01:27,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:01:27,923 INFO L93 Difference]: Finished difference Result 354 states and 413 transitions. [2024-11-13 16:01:27,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 16:01:27,924 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 86 [2024-11-13 16:01:27,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:01:27,926 INFO L225 Difference]: With dead ends: 354 [2024-11-13 16:01:27,926 INFO L226 Difference]: Without dead ends: 354 [2024-11-13 16:01:27,927 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:01:27,927 INFO L432 NwaCegarLoop]: 252 mSDtfsCounter, 32 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 16:01:27,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 742 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 16:01:27,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-13 16:01:27,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2024-11-13 16:01:27,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 344 states have (on average 1.1656976744186047) internal successors, (401), 347 states have internal predecessors, (401), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 16:01:27,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 413 transitions. [2024-11-13 16:01:27,940 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 413 transitions. Word has length 86 [2024-11-13 16:01:27,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:01:27,941 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 413 transitions. [2024-11-13 16:01:27,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:01:27,941 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 413 transitions. [2024-11-13 16:01:27,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-13 16:01:27,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:01:27,943 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:01:27,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-13 16:01:28,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:28,144 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 16:01:28,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:28,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1475295496, now seen corresponding path program 1 times [2024-11-13 16:01:28,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:01:28,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1369406780] [2024-11-13 16:01:28,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:28,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:28,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:01:28,147 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:01:28,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 16:01:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:28,798 INFO L255 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 16:01:28,802 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:01:28,859 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:01:28,861 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:01:28,861 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:01:28,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369406780] [2024-11-13 16:01:28,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369406780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:01:28,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:01:28,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 16:01:28,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863980606] [2024-11-13 16:01:28,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:01:28,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:01:28,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:01:28,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:01:28,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:01:28,863 INFO L87 Difference]: Start difference. First operand 354 states and 413 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, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:01:28,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:01:28,933 INFO L93 Difference]: Finished difference Result 357 states and 417 transitions. [2024-11-13 16:01:28,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:01:28,934 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, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 86 [2024-11-13 16:01:28,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:01:28,938 INFO L225 Difference]: With dead ends: 357 [2024-11-13 16:01:28,938 INFO L226 Difference]: Without dead ends: 357 [2024-11-13 16:01:28,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:01:28,940 INFO L432 NwaCegarLoop]: 271 mSDtfsCounter, 0 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 16:01:28,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 809 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 16:01:28,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-11-13 16:01:28,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 357. [2024-11-13 16:01:28,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 346 states have (on average 1.1676300578034682) internal successors, (404), 350 states have internal predecessors, (404), 6 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-13 16:01:28,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 417 transitions. [2024-11-13 16:01:28,957 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 417 transitions. Word has length 86 [2024-11-13 16:01:28,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:01:28,959 INFO L471 AbstractCegarLoop]: Abstraction has 357 states and 417 transitions. [2024-11-13 16:01:28,959 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, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:01:28,959 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 417 transitions. [2024-11-13 16:01:28,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-13 16:01:28,960 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:01:28,961 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 16:01:28,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-13 16:01:29,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:29,165 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 16:01:29,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:29,165 INFO L85 PathProgramCache]: Analyzing trace with hash -116485862, now seen corresponding path program 1 times [2024-11-13 16:01:29,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:01:29,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [217459548] [2024-11-13 16:01:29,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:29,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:29,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:01:29,168 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:01:29,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 16:01:29,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:29,934 INFO L255 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 16:01:29,938 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:01:30,010 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 16:01:30,010 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:01:30,180 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 16:01:30,183 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:01:30,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217459548] [2024-11-13 16:01:30,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [217459548] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:01:30,183 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 16:01:30,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-13 16:01:30,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360310775] [2024-11-13 16:01:30,184 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 16:01:30,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 16:01:30,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:01:30,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 16:01:30,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-13 16:01:30,187 INFO L87 Difference]: Start difference. First operand 357 states and 417 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 16:01:30,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:01:30,487 INFO L93 Difference]: Finished difference Result 368 states and 434 transitions. [2024-11-13 16:01:30,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 16:01:30,488 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 88 [2024-11-13 16:01:30,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:01:30,490 INFO L225 Difference]: With dead ends: 368 [2024-11-13 16:01:30,490 INFO L226 Difference]: Without dead ends: 368 [2024-11-13 16:01:30,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-13 16:01:30,492 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 4 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1341 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 16:01:30,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1341 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 16:01:30,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2024-11-13 16:01:30,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 366. [2024-11-13 16:01:30,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 354 states have (on average 1.1807909604519775) internal successors, (418), 358 states have internal predecessors, (418), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-13 16:01:30,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 432 transitions. [2024-11-13 16:01:30,508 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 432 transitions. Word has length 88 [2024-11-13 16:01:30,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:01:30,509 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 432 transitions. [2024-11-13 16:01:30,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 16:01:30,509 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 432 transitions. [2024-11-13 16:01:30,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-13 16:01:30,511 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:01:30,511 INFO L215 NwaCegarLoop]: trace histogram [6, 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] [2024-11-13 16:01:30,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-13 16:01:30,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:30,712 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 16:01:30,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:30,713 INFO L85 PathProgramCache]: Analyzing trace with hash 2136733240, now seen corresponding path program 2 times [2024-11-13 16:01:30,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:01:30,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [345962844] [2024-11-13 16:01:30,714 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 16:01:30,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:30,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:01:30,717 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:01:30,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 16:01:31,523 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 16:01:31,524 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 16:01:31,542 INFO L255 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 16:01:31,546 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:01:32,445 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-13 16:01:32,446 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-13 16:01:32,447 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-13 16:01:32,451 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 [2024-11-13 16:01:32,610 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 16:01:32,611 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 [2024-11-13 16:01:32,675 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-13 16:01:32,676 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:01:32,676 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:01:32,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345962844] [2024-11-13 16:01:32,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345962844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:01:32,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:01:32,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 16:01:32,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061143434] [2024-11-13 16:01:32,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:01:32,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:01:32,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:01:32,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:01:32,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:01:32,680 INFO L87 Difference]: Start difference. First operand 366 states and 432 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:01:33,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:01:33,259 INFO L93 Difference]: Finished difference Result 483 states and 577 transitions. [2024-11-13 16:01:33,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:01:33,260 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 92 [2024-11-13 16:01:33,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:01:33,263 INFO L225 Difference]: With dead ends: 483 [2024-11-13 16:01:33,263 INFO L226 Difference]: Without dead ends: 483 [2024-11-13 16:01:33,263 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:01:33,264 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 383 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 16:01:33,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 838 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 16:01:33,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-11-13 16:01:33,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 368. [2024-11-13 16:01:33,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 356 states have (on average 1.1797752808988764) internal successors, (420), 360 states have internal predecessors, (420), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-13 16:01:33,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 434 transitions. [2024-11-13 16:01:33,276 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 434 transitions. Word has length 92 [2024-11-13 16:01:33,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:01:33,277 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 434 transitions. [2024-11-13 16:01:33,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:01:33,277 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 434 transitions. [2024-11-13 16:01:33,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-13 16:01:33,279 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:01:33,279 INFO L215 NwaCegarLoop]: trace histogram [6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:01:33,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-13 16:01:33,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:33,480 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 16:01:33,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:33,480 INFO L85 PathProgramCache]: Analyzing trace with hash -519729691, now seen corresponding path program 1 times [2024-11-13 16:01:33,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:01:33,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1746252084] [2024-11-13 16:01:33,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:33,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:33,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:01:33,483 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:01:33,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-13 16:01:34,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:34,229 INFO L255 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 16:01:34,234 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:01:34,796 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-13 16:01:34,796 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:01:34,796 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:01:34,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746252084] [2024-11-13 16:01:34,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1746252084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:01:34,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:01:34,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 16:01:34,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621528637] [2024-11-13 16:01:34,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:01:34,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:01:34,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:01:34,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:01:34,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:01:34,799 INFO L87 Difference]: Start difference. First operand 368 states and 434 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:01:39,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 16:01:43,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 16:01:46,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:01:46,520 INFO L93 Difference]: Finished difference Result 536 states and 643 transitions. [2024-11-13 16:01:46,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 16:01:46,524 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 128 [2024-11-13 16:01:46,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:01:46,526 INFO L225 Difference]: With dead ends: 536 [2024-11-13 16:01:46,526 INFO L226 Difference]: Without dead ends: 536 [2024-11-13 16:01:46,526 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:01:46,528 INFO L432 NwaCegarLoop]: 300 mSDtfsCounter, 524 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2024-11-13 16:01:46,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 582 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 132 Invalid, 2 Unknown, 0 Unchecked, 11.7s Time] [2024-11-13 16:01:46,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-13 16:01:46,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 464. [2024-11-13 16:01:46,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 450 states have (on average 1.18) internal successors, (531), 455 states have internal predecessors, (531), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-11-13 16:01:46,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 549 transitions. [2024-11-13 16:01:46,546 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 549 transitions. Word has length 128 [2024-11-13 16:01:46,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:01:46,547 INFO L471 AbstractCegarLoop]: Abstraction has 464 states and 549 transitions. [2024-11-13 16:01:46,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:01:46,547 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 549 transitions. [2024-11-13 16:01:46,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-13 16:01:46,548 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:01:46,549 INFO L215 NwaCegarLoop]: trace histogram [6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:01:46,578 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-13 16:01:46,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:46,753 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 16:01:46,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:46,753 INFO L85 PathProgramCache]: Analyzing trace with hash 133014605, now seen corresponding path program 1 times [2024-11-13 16:01:46,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:01:46,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [853935841] [2024-11-13 16:01:46,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:46,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:46,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:01:46,755 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:01:46,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-13 16:01:47,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:47,381 INFO L255 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 16:01:47,384 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:01:47,521 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 16:01:47,521 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:01:47,805 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 16:01:47,805 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:01:47,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853935841] [2024-11-13 16:01:47,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853935841] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:01:47,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 16:01:47,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-13 16:01:47,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181245485] [2024-11-13 16:01:47,806 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 16:01:47,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 16:01:47,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:01:47,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 16:01:47,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-13 16:01:47,809 INFO L87 Difference]: Start difference. First operand 464 states and 549 transitions. Second operand has 10 states, 10 states have (on average 13.7) internal successors, (137), 10 states have internal predecessors, (137), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 16:01:48,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:01:48,268 INFO L93 Difference]: Finished difference Result 472 states and 559 transitions. [2024-11-13 16:01:48,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 16:01:48,268 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.7) internal successors, (137), 10 states have internal predecessors, (137), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 136 [2024-11-13 16:01:48,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:01:48,270 INFO L225 Difference]: With dead ends: 472 [2024-11-13 16:01:48,270 INFO L226 Difference]: Without dead ends: 470 [2024-11-13 16:01:48,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2024-11-13 16:01:48,271 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 6 mSDsluCounter, 1343 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1615 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 16:01:48,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1615 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 16:01:48,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2024-11-13 16:01:48,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 468. [2024-11-13 16:01:48,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 454 states have (on average 1.1828193832599119) internal successors, (537), 459 states have internal predecessors, (537), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-13 16:01:48,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 554 transitions. [2024-11-13 16:01:48,286 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 554 transitions. Word has length 136 [2024-11-13 16:01:48,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:01:48,287 INFO L471 AbstractCegarLoop]: Abstraction has 468 states and 554 transitions. [2024-11-13 16:01:48,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.7) internal successors, (137), 10 states have internal predecessors, (137), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 16:01:48,287 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 554 transitions. [2024-11-13 16:01:48,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 16:01:48,289 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:01:48,289 INFO L215 NwaCegarLoop]: trace histogram [10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:01:48,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-13 16:01:48,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:48,490 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 16:01:48,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:48,490 INFO L85 PathProgramCache]: Analyzing trace with hash 19568845, now seen corresponding path program 2 times [2024-11-13 16:01:48,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:01:48,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2020684150] [2024-11-13 16:01:48,491 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 16:01:48,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:48,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:01:48,492 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:01:48,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-13 16:01:49,324 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 16:01:49,324 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 16:01:49,345 INFO L255 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 16:01:49,349 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:01:49,514 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-13 16:01:49,514 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:01:50,033 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-13 16:01:50,034 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:01:50,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020684150] [2024-11-13 16:01:50,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020684150] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:01:50,034 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 16:01:50,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-13 16:01:50,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196469261] [2024-11-13 16:01:50,035 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 16:01:50,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 16:01:50,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:01:50,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 16:01:50,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-13 16:01:50,037 INFO L87 Difference]: Start difference. First operand 468 states and 554 transitions. Second operand has 14 states, 14 states have (on average 9.785714285714286) internal successors, (137), 14 states have internal predecessors, (137), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 16:01:50,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:01:50,782 INFO L93 Difference]: Finished difference Result 480 states and 570 transitions. [2024-11-13 16:01:50,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-13 16:01:50,783 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.785714285714286) internal successors, (137), 14 states have internal predecessors, (137), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 140 [2024-11-13 16:01:50,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:01:50,785 INFO L225 Difference]: With dead ends: 480 [2024-11-13 16:01:50,785 INFO L226 Difference]: Without dead ends: 476 [2024-11-13 16:01:50,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-11-13 16:01:50,786 INFO L432 NwaCegarLoop]: 271 mSDtfsCounter, 7 mSDsluCounter, 1347 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1618 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 16:01:50,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1618 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 16:01:50,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-11-13 16:01:50,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 474. [2024-11-13 16:01:50,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 460 states have (on average 1.1891304347826086) internal successors, (547), 465 states have internal predecessors, (547), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-13 16:01:50,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 564 transitions. [2024-11-13 16:01:50,801 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 564 transitions. Word has length 140 [2024-11-13 16:01:50,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:01:50,801 INFO L471 AbstractCegarLoop]: Abstraction has 474 states and 564 transitions. [2024-11-13 16:01:50,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.785714285714286) internal successors, (137), 14 states have internal predecessors, (137), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 16:01:50,802 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 564 transitions. [2024-11-13 16:01:50,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-13 16:01:50,804 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:01:50,804 INFO L215 NwaCegarLoop]: trace histogram [16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:01:50,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-13 16:01:51,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:51,005 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 16:01:51,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:51,005 INFO L85 PathProgramCache]: Analyzing trace with hash 181900365, now seen corresponding path program 3 times [2024-11-13 16:01:51,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:01:51,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [512127145] [2024-11-13 16:01:51,006 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 16:01:51,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:51,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:01:51,008 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:01:51,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97d0c87-b74f-46bf-a80a-9be78975741e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process