./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC --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 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:46:19,471 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:46:19,557 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-23 23:46:19,563 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:46:19,563 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:46:19,590 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:46:19,591 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:46:19,591 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:46:19,591 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:46:19,591 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:46:19,591 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:46:19,591 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:46:19,592 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:46:19,592 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:46:19,592 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:46:19,592 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:46:19,592 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:46:19,592 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:46:19,592 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:46:19,593 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:46:19,593 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:46:19,593 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:46:19,593 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-23 23:46:19,593 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-23 23:46:19,593 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:46:19,593 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:46:19,593 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-23 23:46:19,593 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 23:46:19,594 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:46:19,594 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:46:19,594 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:46:19,594 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:46:19,594 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:46:19,594 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:46:19,594 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:46:19,594 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:46:19,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:46:19,595 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:46:19,595 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:46:19,595 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:46:19,595 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:46:19,595 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:46:19,595 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:46:19,595 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:46:19,595 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:46:19,596 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:46:19,596 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:46:19,596 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:46:19,596 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:46:19,596 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:46:19,596 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_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC 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 -> 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f [2024-11-23 23:46:19,917 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:46:19,925 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:46:19,928 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:46:19,929 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:46:19,929 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:46:19,931 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-1.i [2024-11-23 23:46:22,941 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/data/b1fa5b228/3a9031d081ec4d4483924a6d176e485b/FLAG94b99d63a [2024-11-23 23:46:23,352 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:46:23,355 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-1.i [2024-11-23 23:46:23,378 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/data/b1fa5b228/3a9031d081ec4d4483924a6d176e485b/FLAG94b99d63a [2024-11-23 23:46:23,394 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/data/b1fa5b228/3a9031d081ec4d4483924a6d176e485b [2024-11-23 23:46:23,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:46:23,401 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:46:23,403 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:46:23,405 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:46:23,410 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:46:23,411 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:46:23" (1/1) ... [2024-11-23 23:46:23,414 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25bd21ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:46:23, skipping insertion in model container [2024-11-23 23:46:23,414 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:46:23" (1/1) ... [2024-11-23 23:46:23,460 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:46:24,028 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:24,084 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:24,090 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:24,096 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:24,110 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:24,157 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:24,158 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:24,162 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:24,163 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:24,169 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:24,171 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:24,173 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:24,174 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:24,182 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:24,196 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:46:24,210 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) [2024-11-23 23:46:24,210 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6c1bb04a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:46:24, skipping insertion in model container [2024-11-23 23:46:24,210 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:46:24,211 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-23 23:46:24,213 INFO L158 Benchmark]: Toolchain (without parser) took 810.74ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 72.1MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 23:46:24,213 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 167.8MB. Free memory is still 103.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:46:24,214 INFO L158 Benchmark]: CACSL2BoogieTranslator took 807.86ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 72.1MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 23:46:24,215 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 167.8MB. Free memory is still 103.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 807.86ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 72.1MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. 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_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC --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 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:46:26,755 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:46:26,871 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2024-11-23 23:46:26,879 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:46:26,880 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:46:26,947 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:46:26,948 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:46:26,953 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:46:26,954 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:46:26,954 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:46:26,955 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:46:26,956 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:46:26,956 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:46:26,956 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:46:26,957 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:46:26,957 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:46:26,957 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:46:26,957 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:46:26,957 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:46:26,957 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:46:26,957 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:46:26,957 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:46:26,957 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-23 23:46:26,957 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-23 23:46:26,958 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:46:26,958 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:46:26,959 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-23 23:46:26,959 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-23 23:46:26,959 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-23 23:46:26,959 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 23:46:26,959 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:46:26,959 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:46:26,959 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:46:26,960 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:46:26,960 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:46:26,960 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:46:26,960 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:46:26,960 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:46:26,960 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:46:26,960 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:46:26,960 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:46:26,960 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:46:26,960 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:46:26,960 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:46:26,960 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:46:26,961 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:46:26,961 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-23 23:46:26,961 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-23 23:46:26,961 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:46:26,961 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:46:26,961 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:46:26,961 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:46:26,961 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_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC 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 -> 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f [2024-11-23 23:46:27,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:46:27,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:46:27,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:46:27,330 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:46:27,331 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:46:27,332 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-1.i [2024-11-23 23:46:30,240 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/data/125fe465d/6c0c0d602f534a2684fb7b88e4625650/FLAGbee1194de [2024-11-23 23:46:30,740 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:46:30,741 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-1.i [2024-11-23 23:46:30,758 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/data/125fe465d/6c0c0d602f534a2684fb7b88e4625650/FLAGbee1194de [2024-11-23 23:46:30,778 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/data/125fe465d/6c0c0d602f534a2684fb7b88e4625650 [2024-11-23 23:46:30,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:46:30,783 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:46:30,784 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:46:30,786 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:46:30,791 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:46:30,792 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:46:30" (1/1) ... [2024-11-23 23:46:30,793 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@565aedf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:46:30, skipping insertion in model container [2024-11-23 23:46:30,793 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:46:30" (1/1) ... [2024-11-23 23:46:30,852 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:46:31,356 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:31,396 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:31,401 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:31,405 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:31,415 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:31,512 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:31,512 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:31,516 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:31,516 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:31,529 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:31,531 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:31,536 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:31,537 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:31,551 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:31,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:46:31,594 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-23 23:46:31,626 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:46:31,703 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:31,727 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:31,730 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:31,733 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:31,739 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:31,764 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:31,766 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:31,768 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:31,772 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:31,775 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:31,779 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:31,780 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:31,780 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:31,789 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 23:46:31,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:46:31,803 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:46:31,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:46:31,964 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:46:31,965 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:46:31 WrapperNode [2024-11-23 23:46:31,965 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:46:31,966 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:46:31,966 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:46:31,966 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:46:31,973 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:46:31" (1/1) ... [2024-11-23 23:46:32,005 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:46:31" (1/1) ... [2024-11-23 23:46:32,084 INFO L138 Inliner]: procedures = 180, calls = 274, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 996 [2024-11-23 23:46:32,085 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:46:32,085 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:46:32,085 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:46:32,086 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:46:32,097 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:46:31" (1/1) ... [2024-11-23 23:46:32,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:46:31" (1/1) ... [2024-11-23 23:46:32,121 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:46:31" (1/1) ... [2024-11-23 23:46:32,201 INFO L175 MemorySlicer]: Split 254 memory accesses to 3 slices as follows [2, 218, 34]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 54 writes are split as follows [0, 50, 4]. [2024-11-23 23:46:32,202 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:46:31" (1/1) ... [2024-11-23 23:46:32,202 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:46:31" (1/1) ... [2024-11-23 23:46:32,262 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:46:31" (1/1) ... [2024-11-23 23:46:32,268 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:46:31" (1/1) ... [2024-11-23 23:46:32,284 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:46:31" (1/1) ... [2024-11-23 23:46:32,291 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:46:31" (1/1) ... [2024-11-23 23:46:32,298 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:46:31" (1/1) ... [2024-11-23 23:46:32,313 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:46:32,314 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:46:32,314 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:46:32,314 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:46:32,315 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:46:31" (1/1) ... [2024-11-23 23:46:32,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:46:32,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:46:32,354 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:46:32,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:46:32,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-23 23:46:32,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-23 23:46:32,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-23 23:46:32,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-23 23:46:32,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-23 23:46:32,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-23 23:46:32,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-23 23:46:32,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-23 23:46:32,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-23 23:46:32,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-23 23:46:32,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-23 23:46:32,391 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-23 23:46:32,391 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-23 23:46:32,391 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-23 23:46:32,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-23 23:46:32,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:46:32,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-23 23:46:32,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-23 23:46:32,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-23 23:46:32,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-23 23:46:32,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-23 23:46:32,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-23 23:46:32,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-23 23:46:32,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-23 23:46:32,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-23 23:46:32,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-23 23:46:32,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-23 23:46:32,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-23 23:46:32,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-23 23:46:32,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-23 23:46:32,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:46:32,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:46:32,650 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:46:32,653 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:46:41,297 INFO L? ?]: Removed 127 outVars from TransFormulas that were not future-live. [2024-11-23 23:46:41,297 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:46:41,318 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:46:41,318 INFO L312 CfgBuilder]: Removed 36 assume(true) statements. [2024-11-23 23:46:41,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:46:41 BoogieIcfgContainer [2024-11-23 23:46:41,318 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:46:41,324 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:46:41,324 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:46:41,330 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:46:41,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:46:30" (1/3) ... [2024-11-23 23:46:41,331 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45a2b41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:46:41, skipping insertion in model container [2024-11-23 23:46:41,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:46:31" (2/3) ... [2024-11-23 23:46:41,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45a2b41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:46:41, skipping insertion in model container [2024-11-23 23:46:41,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:46:41" (3/3) ... [2024-11-23 23:46:41,335 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_FNV_nondet_test3-1.i [2024-11-23 23:46:41,354 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:46:41,356 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_FNV_nondet_test3-1.i that has 5 procedures, 216 locations, 1 initial locations, 38 loop locations, and 2 error locations. [2024-11-23 23:46:41,410 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:46:41,427 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;@3f9c7157, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:46:41,427 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-23 23:46:41,433 INFO L276 IsEmpty]: Start isEmpty. Operand has 208 states, 198 states have (on average 1.6414141414141414) internal successors, (325), 201 states have internal predecessors, (325), 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) [2024-11-23 23:46:41,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-23 23:46:41,441 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:46:41,441 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-23 23:46:41,442 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-23 23:46:41,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:46:41,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1665236, now seen corresponding path program 1 times [2024-11-23 23:46:41,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:46:41,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1272010988] [2024-11-23 23:46:41,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:46:41,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:46:41,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:46:41,466 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:46:41,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:46:41,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:46:41,683 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 23:46:41,688 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:46:41,823 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 [2024-11-23 23:46:41,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:46:41,828 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:46:41,829 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:46:41,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1272010988] [2024-11-23 23:46:41,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1272010988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:46:41,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:46:41,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:46:41,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845318166] [2024-11-23 23:46:41,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:46:41,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:46:41,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:46:41,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:46:41,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-23 23:46:41,875 INFO L87 Difference]: Start difference. First operand has 208 states, 198 states have (on average 1.6414141414141414) internal successors, (325), 201 states have internal predecessors, (325), 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) [2024-11-23 23:46:46,149 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 [] [2024-11-23 23:46:46,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:46:46,825 INFO L93 Difference]: Finished difference Result 306 states and 397 transitions. [2024-11-23 23:46:46,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:46:46,839 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 [2024-11-23 23:46:46,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:46:46,849 INFO L225 Difference]: With dead ends: 306 [2024-11-23 23:46:46,849 INFO L226 Difference]: Without dead ends: 303 [2024-11-23 23:46:46,851 INFO L434 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 [2024-11-23 23:46:46,854 INFO L435 NwaCegarLoop]: 259 mSDtfsCounter, 124 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 398 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-23 23:46:46,855 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 501 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 1 Unknown, 398 Unchecked, 4.9s Time] [2024-11-23 23:46:46,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-11-23 23:46:46,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 205. [2024-11-23 23:46:46,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 196 states have (on average 1.2857142857142858) internal successors, (252), 198 states have internal predecessors, (252), 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) [2024-11-23 23:46:46,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 262 transitions. [2024-11-23 23:46:46,927 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 262 transitions. Word has length 4 [2024-11-23 23:46:46,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:46:46,927 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 262 transitions. [2024-11-23 23:46:46,928 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) [2024-11-23 23:46:46,928 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 262 transitions. [2024-11-23 23:46:46,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-23 23:46:46,928 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:46:46,928 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:46:46,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-23 23:46:47,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:46:47,130 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-23 23:46:47,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:46:47,131 INFO L85 PathProgramCache]: Analyzing trace with hash -634583496, now seen corresponding path program 1 times [2024-11-23 23:46:47,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:46:47,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2136621651] [2024-11-23 23:46:47,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:46:47,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:46:47,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:46:47,135 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:46:47,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 23:46:47,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:46:47,368 INFO L256 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 23:46:47,371 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:46:47,637 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 [2024-11-23 23:46:47,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:46:47,638 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:46:47,638 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:46:47,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136621651] [2024-11-23 23:46:47,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136621651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:46:47,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:46:47,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:46:47,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501979501] [2024-11-23 23:46:47,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:46:47,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:46:47,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:46:47,642 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:46:47,643 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-23 23:46:47,643 INFO L87 Difference]: Start difference. First operand 205 states and 262 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:46:51,849 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 [] [2024-11-23 23:46:52,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:46:52,330 INFO L93 Difference]: Finished difference Result 304 states and 393 transitions. [2024-11-23 23:46:52,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:46:52,337 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-23 23:46:52,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:46:52,339 INFO L225 Difference]: With dead ends: 304 [2024-11-23 23:46:52,339 INFO L226 Difference]: Without dead ends: 302 [2024-11-23 23:46:52,340 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-23 23:46:52,341 INFO L435 NwaCegarLoop]: 257 mSDtfsCounter, 116 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 392 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:46:52,341 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 498 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 1 Unknown, 392 Unchecked, 4.7s Time] [2024-11-23 23:46:52,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2024-11-23 23:46:52,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 277. [2024-11-23 23:46:52,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 266 states have (on average 1.2932330827067668) internal successors, (344), 268 states have internal predecessors, (344), 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) [2024-11-23 23:46:52,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 358 transitions. [2024-11-23 23:46:52,363 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 358 transitions. Word has length 12 [2024-11-23 23:46:52,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:46:52,364 INFO L471 AbstractCegarLoop]: Abstraction has 277 states and 358 transitions. [2024-11-23 23:46:52,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:46:52,364 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 358 transitions. [2024-11-23 23:46:52,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-23 23:46:52,365 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:46:52,365 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:46:52,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 23:46:52,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:46:52,566 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-23 23:46:52,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:46:52,566 INFO L85 PathProgramCache]: Analyzing trace with hash -497087844, now seen corresponding path program 1 times [2024-11-23 23:46:52,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:46:52,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1532786189] [2024-11-23 23:46:52,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:46:52,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:46:52,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:46:52,569 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:46:52,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 23:46:52,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:46:52,757 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 23:46:52,760 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:46:52,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:46:52,947 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:46:52,947 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:46:52,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532786189] [2024-11-23 23:46:52,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532786189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:46:52,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:46:52,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:46:52,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851567394] [2024-11-23 23:46:52,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:46:52,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:46:52,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:46:52,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:46:52,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:46:52,950 INFO L87 Difference]: Start difference. First operand 277 states and 358 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-11-23 23:46:57,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:46:59,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:46:59,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:46:59,913 INFO L93 Difference]: Finished difference Result 368 states and 475 transitions. [2024-11-23 23:46:59,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:46:59,915 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 16 [2024-11-23 23:46:59,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:46:59,917 INFO L225 Difference]: With dead ends: 368 [2024-11-23 23:46:59,917 INFO L226 Difference]: Without dead ends: 366 [2024-11-23 23:46:59,917 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:46:59,918 INFO L435 NwaCegarLoop]: 250 mSDtfsCounter, 139 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2024-11-23 23:46:59,919 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 704 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 77 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2024-11-23 23:46:59,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2024-11-23 23:46:59,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 365. [2024-11-23 23:46:59,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 354 states have (on average 1.2937853107344632) internal successors, (458), 357 states have internal predecessors, (458), 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) [2024-11-23 23:46:59,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 472 transitions. [2024-11-23 23:46:59,939 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 472 transitions. Word has length 16 [2024-11-23 23:46:59,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:46:59,940 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 472 transitions. [2024-11-23 23:46:59,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-11-23 23:46:59,940 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 472 transitions. [2024-11-23 23:46:59,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-23 23:46:59,941 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:46:59,942 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:46:59,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 23:47:00,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:47:00,142 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-23 23:47:00,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:47:00,143 INFO L85 PathProgramCache]: Analyzing trace with hash 575530527, now seen corresponding path program 1 times [2024-11-23 23:47:00,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:47:00,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [650064601] [2024-11-23 23:47:00,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:47:00,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:47:00,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:47:00,147 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:47:00,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 23:47:00,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:47:00,387 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:47:00,390 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:47:00,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:47:00,547 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:47:00,547 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:47:00,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650064601] [2024-11-23 23:47:00,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650064601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:47:00,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:47:00,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:47:00,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549508392] [2024-11-23 23:47:00,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:47:00,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:47:00,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:47:00,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:47:00,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:47:00,553 INFO L87 Difference]: Start difference. First operand 365 states and 472 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) [2024-11-23 23:47:00,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:47:00,772 INFO L93 Difference]: Finished difference Result 392 states and 484 transitions. [2024-11-23 23:47:00,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:47:00,773 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 [2024-11-23 23:47:00,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:47:00,779 INFO L225 Difference]: With dead ends: 392 [2024-11-23 23:47:00,779 INFO L226 Difference]: Without dead ends: 392 [2024-11-23 23:47:00,779 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:47:00,780 INFO L435 NwaCegarLoop]: 231 mSDtfsCounter, 23 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:47:00,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 672 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:47:00,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-11-23 23:47:00,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 389. [2024-11-23 23:47:00,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 378 states have (on average 1.2354497354497354) internal successors, (467), 381 states have internal predecessors, (467), 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) [2024-11-23 23:47:00,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 481 transitions. [2024-11-23 23:47:00,811 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 481 transitions. Word has length 51 [2024-11-23 23:47:00,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:47:00,811 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 481 transitions. [2024-11-23 23:47:00,811 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) [2024-11-23 23:47:00,812 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 481 transitions. [2024-11-23 23:47:00,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-23 23:47:00,814 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:47:00,815 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:47:00,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-23 23:47:01,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:47:01,015 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-23 23:47:01,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:47:01,016 INFO L85 PathProgramCache]: Analyzing trace with hash 709544033, now seen corresponding path program 1 times [2024-11-23 23:47:01,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:47:01,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [352262844] [2024-11-23 23:47:01,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:47:01,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:47:01,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:47:01,019 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:47:01,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 23:47:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:47:01,228 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:47:01,231 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:47:01,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:47:01,282 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:47:01,282 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:47:01,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352262844] [2024-11-23 23:47:01,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352262844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:47:01,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:47:01,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:47:01,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862974651] [2024-11-23 23:47:01,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:47:01,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:47:01,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:47:01,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:47:01,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:47:01,285 INFO L87 Difference]: Start difference. First operand 389 states and 481 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) [2024-11-23 23:47:01,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:47:01,462 INFO L93 Difference]: Finished difference Result 353 states and 424 transitions. [2024-11-23 23:47:01,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:47:01,463 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 [2024-11-23 23:47:01,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:47:01,465 INFO L225 Difference]: With dead ends: 353 [2024-11-23 23:47:01,466 INFO L226 Difference]: Without dead ends: 353 [2024-11-23 23:47:01,466 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:47:01,467 INFO L435 NwaCegarLoop]: 227 mSDtfsCounter, 27 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:47:01,467 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 669 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:47:01,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-11-23 23:47:01,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 353. [2024-11-23 23:47:01,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 342 states have (on average 1.1988304093567252) internal successors, (410), 345 states have internal predecessors, (410), 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) [2024-11-23 23:47:01,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 424 transitions. [2024-11-23 23:47:01,485 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 424 transitions. Word has length 51 [2024-11-23 23:47:01,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:47:01,485 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 424 transitions. [2024-11-23 23:47:01,486 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) [2024-11-23 23:47:01,486 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 424 transitions. [2024-11-23 23:47:01,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-23 23:47:01,491 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:47:01,491 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:47:01,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-23 23:47:01,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:47:01,695 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-23 23:47:01,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:47:01,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1186760339, now seen corresponding path program 1 times [2024-11-23 23:47:01,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:47:01,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [177366268] [2024-11-23 23:47:01,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:47:01,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:47:01,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:47:01,700 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:47:01,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 23:47:01,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:47:01,962 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-23 23:47:01,966 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:47:01,986 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-23 23:47:01,987 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-23 23:47:01,988 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-23 23:47:01,999 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 [2024-11-23 23:47:02,149 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:47:02,150 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 [2024-11-23 23:47:02,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:47:02,273 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:47:02,274 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:47:02,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177366268] [2024-11-23 23:47:02,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177366268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:47:02,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:47:02,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:47:02,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597453674] [2024-11-23 23:47:02,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:47:02,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:47:02,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:47:02,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:47:02,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:47:02,276 INFO L87 Difference]: Start difference. First operand 353 states and 424 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) [2024-11-23 23:47:03,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:47:03,126 INFO L93 Difference]: Finished difference Result 362 states and 443 transitions. [2024-11-23 23:47:03,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:47:03,128 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 [2024-11-23 23:47:03,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:47:03,130 INFO L225 Difference]: With dead ends: 362 [2024-11-23 23:47:03,130 INFO L226 Difference]: Without dead ends: 359 [2024-11-23 23:47:03,131 INFO L434 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 [2024-11-23 23:47:03,131 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 112 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:47:03,132 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 930 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:47:03,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-23 23:47:03,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 310. [2024-11-23 23:47:03,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 300 states have (on average 1.22) internal successors, (366), 303 states have internal predecessors, (366), 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) [2024-11-23 23:47:03,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 378 transitions. [2024-11-23 23:47:03,144 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 378 transitions. Word has length 51 [2024-11-23 23:47:03,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:47:03,144 INFO L471 AbstractCegarLoop]: Abstraction has 310 states and 378 transitions. [2024-11-23 23:47:03,144 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) [2024-11-23 23:47:03,145 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 378 transitions. [2024-11-23 23:47:03,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-23 23:47:03,146 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:47:03,146 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:47:03,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-23 23:47:03,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:47:03,347 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-23 23:47:03,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:47:03,347 INFO L85 PathProgramCache]: Analyzing trace with hash -536099557, now seen corresponding path program 1 times [2024-11-23 23:47:03,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:47:03,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [779811457] [2024-11-23 23:47:03,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:47:03,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:47:03,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:47:03,352 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:47:03,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-23 23:47:03,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:47:03,841 INFO L256 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:47:03,845 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:47:03,879 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-23 23:47:03,879 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:47:03,879 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:47:03,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779811457] [2024-11-23 23:47:03,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779811457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:47:03,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:47:03,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:47:03,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368178674] [2024-11-23 23:47:03,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:47:03,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:47:03,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:47:03,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:47:03,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:47:03,882 INFO L87 Difference]: Start difference. First operand 310 states and 378 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-23 23:47:04,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:47:04,065 INFO L93 Difference]: Finished difference Result 350 states and 418 transitions. [2024-11-23 23:47:04,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:47:04,066 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 84 [2024-11-23 23:47:04,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:47:04,068 INFO L225 Difference]: With dead ends: 350 [2024-11-23 23:47:04,068 INFO L226 Difference]: Without dead ends: 350 [2024-11-23 23:47:04,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:47:04,069 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 8 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 437 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 [2024-11-23 23:47:04,070 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 437 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:47:04,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-23 23:47:04,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2024-11-23 23:47:04,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 340 states have (on average 1.1941176470588235) internal successors, (406), 343 states have internal predecessors, (406), 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) [2024-11-23 23:47:04,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 418 transitions. [2024-11-23 23:47:04,081 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 418 transitions. Word has length 84 [2024-11-23 23:47:04,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:47:04,082 INFO L471 AbstractCegarLoop]: Abstraction has 350 states and 418 transitions. [2024-11-23 23:47:04,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-23 23:47:04,082 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 418 transitions. [2024-11-23 23:47:04,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-23 23:47:04,084 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:47:04,084 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:47:04,101 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-23 23:47:04,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:47:04,285 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-23 23:47:04,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:47:04,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1797293081, now seen corresponding path program 1 times [2024-11-23 23:47:04,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:47:04,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1537142575] [2024-11-23 23:47:04,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:47:04,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:47:04,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:47:04,287 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:47:04,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-23 23:47:04,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:47:04,798 INFO L256 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:47:04,803 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:47:05,253 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-23 23:47:05,253 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:47:05,253 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:47:05,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537142575] [2024-11-23 23:47:05,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537142575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:47:05,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:47:05,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:47:05,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919691628] [2024-11-23 23:47:05,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:47:05,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:47:05,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:47:05,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:47:05,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:47:05,255 INFO L87 Difference]: Start difference. First operand 350 states and 418 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-23 23:47:09,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:47:13,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:47:17,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:47:17,356 INFO L93 Difference]: Finished difference Result 438 states and 523 transitions. [2024-11-23 23:47:17,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:47:17,357 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 84 [2024-11-23 23:47:17,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:47:17,361 INFO L225 Difference]: With dead ends: 438 [2024-11-23 23:47:17,361 INFO L226 Difference]: Without dead ends: 438 [2024-11-23 23:47:17,361 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:47:17,363 INFO L435 NwaCegarLoop]: 253 mSDtfsCounter, 452 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:47:17,364 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 436 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 84 Invalid, 2 Unknown, 0 Unchecked, 12.1s Time] [2024-11-23 23:47:17,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2024-11-23 23:47:17,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 434. [2024-11-23 23:47:17,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 423 states have (on average 1.1914893617021276) internal successors, (504), 427 states have internal predecessors, (504), 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) [2024-11-23 23:47:17,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 518 transitions. [2024-11-23 23:47:17,383 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 518 transitions. Word has length 84 [2024-11-23 23:47:17,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:47:17,384 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 518 transitions. [2024-11-23 23:47:17,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-23 23:47:17,384 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 518 transitions. [2024-11-23 23:47:17,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-23 23:47:17,385 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:47:17,386 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:47:17,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-23 23:47:17,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:47:17,586 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-23 23:47:17,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:47:17,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1347506179, now seen corresponding path program 1 times [2024-11-23 23:47:17,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:47:17,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [316844289] [2024-11-23 23:47:17,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:47:17,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:47:17,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:47:17,589 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:47:17,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-23 23:47:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:47:18,072 INFO L256 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:47:18,075 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:47:18,123 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-23 23:47:18,123 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:47:18,123 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:47:18,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316844289] [2024-11-23 23:47:18,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [316844289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:47:18,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:47:18,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:47:18,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411914362] [2024-11-23 23:47:18,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:47:18,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:47:18,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:47:18,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:47:18,125 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:47:18,126 INFO L87 Difference]: Start difference. First operand 434 states and 518 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2024-11-23 23:47:18,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:47:18,303 INFO L93 Difference]: Finished difference Result 398 states and 460 transitions. [2024-11-23 23:47:18,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:47:18,303 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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 88 [2024-11-23 23:47:18,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:47:18,305 INFO L225 Difference]: With dead ends: 398 [2024-11-23 23:47:18,306 INFO L226 Difference]: Without dead ends: 398 [2024-11-23 23:47:18,306 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:47:18,306 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 32 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:47:18,307 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 622 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:47:18,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2024-11-23 23:47:18,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2024-11-23 23:47:18,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 387 states have (on average 1.152454780361757) internal successors, (446), 391 states have internal predecessors, (446), 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) [2024-11-23 23:47:18,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 460 transitions. [2024-11-23 23:47:18,318 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 460 transitions. Word has length 88 [2024-11-23 23:47:18,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:47:18,319 INFO L471 AbstractCegarLoop]: Abstraction has 398 states and 460 transitions. [2024-11-23 23:47:18,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2024-11-23 23:47:18,319 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 460 transitions. [2024-11-23 23:47:18,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-23 23:47:18,320 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:47:18,320 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:47:18,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-23 23:47:18,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:47:18,523 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-23 23:47:18,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:47:18,524 INFO L85 PathProgramCache]: Analyzing trace with hash -2009183989, now seen corresponding path program 1 times [2024-11-23 23:47:18,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:47:18,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1781383488] [2024-11-23 23:47:18,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:47:18,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:47:18,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:47:18,527 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:47:18,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-23 23:47:18,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:47:18,988 INFO L256 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:47:18,992 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:47:19,043 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 23:47:19,043 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:47:19,043 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:47:19,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781383488] [2024-11-23 23:47:19,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781383488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:47:19,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:47:19,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:47:19,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156967090] [2024-11-23 23:47:19,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:47:19,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:47:19,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:47:19,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:47:19,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:47:19,045 INFO L87 Difference]: Start difference. First operand 398 states and 460 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-23 23:47:19,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:47:19,112 INFO L93 Difference]: Finished difference Result 401 states and 464 transitions. [2024-11-23 23:47:19,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:47:19,113 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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 88 [2024-11-23 23:47:19,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:47:19,116 INFO L225 Difference]: With dead ends: 401 [2024-11-23 23:47:19,116 INFO L226 Difference]: Without dead ends: 401 [2024-11-23 23:47:19,116 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:47:19,117 INFO L435 NwaCegarLoop]: 231 mSDtfsCounter, 0 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 689 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 [2024-11-23 23:47:19,117 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 689 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:47:19,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-11-23 23:47:19,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2024-11-23 23:47:19,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 389 states have (on average 1.154241645244216) internal successors, (449), 394 states have internal predecessors, (449), 7 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-23 23:47:19,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 464 transitions. [2024-11-23 23:47:19,133 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 464 transitions. Word has length 88 [2024-11-23 23:47:19,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:47:19,134 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 464 transitions. [2024-11-23 23:47:19,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-23 23:47:19,134 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 464 transitions. [2024-11-23 23:47:19,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-23 23:47:19,135 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:47:19,135 INFO L218 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, 1, 1] [2024-11-23 23:47:19,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-23 23:47:19,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:47:19,336 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-23 23:47:19,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:47:19,337 INFO L85 PathProgramCache]: Analyzing trace with hash 973119017, now seen corresponding path program 1 times [2024-11-23 23:47:19,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:47:19,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1508587179] [2024-11-23 23:47:19,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:47:19,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:47:19,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:47:19,341 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:47:19,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-23 23:47:19,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:47:19,880 INFO L256 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:47:19,885 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:47:19,969 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-23 23:47:19,969 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:47:20,145 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-23 23:47:20,145 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:47:20,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508587179] [2024-11-23 23:47:20,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1508587179] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:47:20,146 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:47:20,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-23 23:47:20,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268422328] [2024-11-23 23:47:20,146 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 23:47:20,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:47:20,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:47:20,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:47:20,148 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:47:20,148 INFO L87 Difference]: Start difference. First operand 401 states and 464 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 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) [2024-11-23 23:47:20,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:47:20,389 INFO L93 Difference]: Finished difference Result 412 states and 481 transitions. [2024-11-23 23:47:20,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 23:47:20,391 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 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 90 [2024-11-23 23:47:20,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:47:20,394 INFO L225 Difference]: With dead ends: 412 [2024-11-23 23:47:20,394 INFO L226 Difference]: Without dead ends: 412 [2024-11-23 23:47:20,394 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:47:20,395 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 5 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:47:20,396 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 689 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:47:20,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-11-23 23:47:20,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 410. [2024-11-23 23:47:20,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 397 states have (on average 1.1662468513853905) internal successors, (463), 402 states have internal predecessors, (463), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-23 23:47:20,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 479 transitions. [2024-11-23 23:47:20,413 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 479 transitions. Word has length 90 [2024-11-23 23:47:20,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:47:20,414 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 479 transitions. [2024-11-23 23:47:20,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 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) [2024-11-23 23:47:20,414 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 479 transitions. [2024-11-23 23:47:20,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-23 23:47:20,415 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:47:20,416 INFO L218 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] [2024-11-23 23:47:20,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-23 23:47:20,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:47:20,620 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-23 23:47:20,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:47:20,621 INFO L85 PathProgramCache]: Analyzing trace with hash 864014859, now seen corresponding path program 2 times [2024-11-23 23:47:20,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:47:20,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1045854113] [2024-11-23 23:47:20,622 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:47:20,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:47:20,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:47:20,624 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:47:20,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-23 23:47:21,260 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:47:21,260 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:47:21,274 INFO L256 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 23:47:21,278 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:47:22,248 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-23 23:47:22,248 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-23 23:47:22,249 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-23 23:47:22,251 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 [2024-11-23 23:47:22,381 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:47:22,381 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 [2024-11-23 23:47:22,443 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-23 23:47:22,443 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:47:22,443 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:47:22,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045854113] [2024-11-23 23:47:22,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045854113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:47:22,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:47:22,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:47:22,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311149837] [2024-11-23 23:47:22,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:47:22,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:47:22,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:47:22,444 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:47:22,444 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:47:22,445 INFO L87 Difference]: Start difference. First operand 410 states and 479 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 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) [2024-11-23 23:47:22,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:47:22,824 INFO L93 Difference]: Finished difference Result 515 states and 604 transitions. [2024-11-23 23:47:22,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:47:22,825 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 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 94 [2024-11-23 23:47:22,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:47:22,829 INFO L225 Difference]: With dead ends: 515 [2024-11-23 23:47:22,829 INFO L226 Difference]: Without dead ends: 515 [2024-11-23 23:47:22,829 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:47:22,830 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 569 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:47:22,830 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 631 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:47:22,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2024-11-23 23:47:22,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 412. [2024-11-23 23:47:22,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 399 states have (on average 1.1654135338345866) internal successors, (465), 404 states have internal predecessors, (465), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-23 23:47:22,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 481 transitions. [2024-11-23 23:47:22,844 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 481 transitions. Word has length 94 [2024-11-23 23:47:22,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:47:22,845 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 481 transitions. [2024-11-23 23:47:22,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 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) [2024-11-23 23:47:22,845 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 481 transitions. [2024-11-23 23:47:22,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-23 23:47:22,847 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:47:22,847 INFO L218 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, 1] [2024-11-23 23:47:22,862 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-23 23:47:23,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:47:23,047 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-23 23:47:23,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:47:23,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1043201422, now seen corresponding path program 1 times [2024-11-23 23:47:23,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:47:23,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1790908396] [2024-11-23 23:47:23,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:47:23,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:47:23,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:47:23,050 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:47:23,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-23 23:47:23,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:47:23,653 INFO L256 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 23:47:23,657 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:47:23,791 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-23 23:47:23,791 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:47:24,078 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-23 23:47:24,078 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:47:24,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1790908396] [2024-11-23 23:47:24,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1790908396] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:47:24,078 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:47:24,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-23 23:47:24,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270049294] [2024-11-23 23:47:24,079 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 23:47:24,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:47:24,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:47:24,080 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:47:24,080 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:47:24,081 INFO L87 Difference]: Start difference. First operand 412 states and 481 transitions. Second operand has 10 states, 10 states have (on average 13.8) internal successors, (138), 10 states have internal predecessors, (138), 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) [2024-11-23 23:47:24,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:47:24,540 INFO L93 Difference]: Finished difference Result 420 states and 491 transitions. [2024-11-23 23:47:24,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 23:47:24,542 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.8) internal successors, (138), 10 states have internal predecessors, (138), 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 137 [2024-11-23 23:47:24,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:47:24,544 INFO L225 Difference]: With dead ends: 420 [2024-11-23 23:47:24,544 INFO L226 Difference]: Without dead ends: 418 [2024-11-23 23:47:24,544 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:47:24,545 INFO L435 NwaCegarLoop]: 232 mSDtfsCounter, 5 mSDsluCounter, 917 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1149 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:47:24,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1149 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:47:24,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2024-11-23 23:47:24,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 416. [2024-11-23 23:47:24,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 403 states have (on average 1.1687344913151365) internal successors, (471), 408 states have internal predecessors, (471), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-23 23:47:24,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 486 transitions. [2024-11-23 23:47:24,558 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 486 transitions. Word has length 137 [2024-11-23 23:47:24,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:47:24,558 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 486 transitions. [2024-11-23 23:47:24,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.8) internal successors, (138), 10 states have internal predecessors, (138), 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) [2024-11-23 23:47:24,558 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 486 transitions. [2024-11-23 23:47:24,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-23 23:47:24,560 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:47:24,560 INFO L218 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, 1] [2024-11-23 23:47:24,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-23 23:47:24,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:47:24,761 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-23 23:47:24,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:47:24,762 INFO L85 PathProgramCache]: Analyzing trace with hash 876028274, now seen corresponding path program 2 times [2024-11-23 23:47:24,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:47:24,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2111700549] [2024-11-23 23:47:24,763 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:47:24,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:47:24,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:47:24,766 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:47:24,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-23 23:47:25,597 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:47:25,597 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:47:25,615 INFO L256 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 23:47:25,619 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:47:25,846 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-23 23:47:25,847 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:47:26,324 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-23 23:47:26,324 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:47:26,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111700549] [2024-11-23 23:47:26,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111700549] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:47:26,324 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:47:26,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-23 23:47:26,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029913740] [2024-11-23 23:47:26,325 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 23:47:26,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 23:47:26,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:47:26,326 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 23:47:26,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:47:26,327 INFO L87 Difference]: Start difference. First operand 416 states and 486 transitions. Second operand has 14 states, 14 states have (on average 9.857142857142858) internal successors, (138), 14 states have internal predecessors, (138), 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) [2024-11-23 23:47:27,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:47:27,155 INFO L93 Difference]: Finished difference Result 428 states and 502 transitions. [2024-11-23 23:47:27,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-23 23:47:27,157 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.857142857142858) internal successors, (138), 14 states have internal predecessors, (138), 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 141 [2024-11-23 23:47:27,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:47:27,159 INFO L225 Difference]: With dead ends: 428 [2024-11-23 23:47:27,159 INFO L226 Difference]: Without dead ends: 424 [2024-11-23 23:47:27,159 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-11-23 23:47:27,161 INFO L435 NwaCegarLoop]: 231 mSDtfsCounter, 7 mSDsluCounter, 1374 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:47:27,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1605 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:47:27,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2024-11-23 23:47:27,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 422. [2024-11-23 23:47:27,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 409 states have (on average 1.176039119804401) internal successors, (481), 414 states have internal predecessors, (481), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-23 23:47:27,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 496 transitions. [2024-11-23 23:47:27,179 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 496 transitions. Word has length 141 [2024-11-23 23:47:27,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:47:27,180 INFO L471 AbstractCegarLoop]: Abstraction has 422 states and 496 transitions. [2024-11-23 23:47:27,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.857142857142858) internal successors, (138), 14 states have internal predecessors, (138), 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) [2024-11-23 23:47:27,180 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 496 transitions. [2024-11-23 23:47:27,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-23 23:47:27,183 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:47:27,183 INFO L218 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, 1] [2024-11-23 23:47:27,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-23 23:47:27,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:47:27,384 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-23 23:47:27,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:47:27,385 INFO L85 PathProgramCache]: Analyzing trace with hash -2109870926, now seen corresponding path program 3 times [2024-11-23 23:47:27,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:47:27,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1929695988] [2024-11-23 23:47:27,386 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 23:47:27,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:47:27,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:47:27,389 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:47:27,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9b37af-a62c-44fb-97ee-b3fb01365614/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process