./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:10:02,818 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:10:02,912 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-28 05:10:02,919 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:10:02,919 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:10:02,953 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:10:02,954 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:10:02,954 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:10:02,955 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:10:02,955 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:10:02,955 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:10:02,955 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:10:02,956 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:10:02,956 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:10:02,956 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:10:02,957 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:10:02,957 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:10:02,957 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:10:02,957 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:10:02,957 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:10:02,958 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:10:02,958 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:10:02,958 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 05:10:02,958 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 05:10:02,958 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:10:02,959 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:10:02,959 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 05:10:02,959 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 05:10:02,959 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:10:02,959 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:10:02,959 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:10:02,960 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:10:02,960 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:10:02,960 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:10:02,960 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:10:02,960 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:10:02,961 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:10:02,961 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:10:02,961 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:10:02,961 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:10:02,961 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:10:02,962 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:10:02,962 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:10:02,962 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:10:02,962 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:10:02,962 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:10:02,963 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:10:02,963 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:10:02,963 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:10:02,963 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:10:02,963 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_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 [2024-11-28 05:10:03,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:10:03,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:10:03,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:10:03,315 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:10:03,316 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:10:03,318 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test3-2.i [2024-11-28 05:10:06,837 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/data/60108afe3/86628a0338024d809a290c3b25ce8297/FLAG89a49b7c8 [2024-11-28 05:10:07,374 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:10:07,377 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test3-2.i [2024-11-28 05:10:07,412 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/data/60108afe3/86628a0338024d809a290c3b25ce8297/FLAG89a49b7c8 [2024-11-28 05:10:07,441 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/data/60108afe3/86628a0338024d809a290c3b25ce8297 [2024-11-28 05:10:07,445 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:10:07,447 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:10:07,449 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:10:07,451 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:10:07,456 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:10:07,457 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:10:07" (1/1) ... [2024-11-28 05:10:07,459 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63e74be2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:07, skipping insertion in model container [2024-11-28 05:10:07,462 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:10:07" (1/1) ... [2024-11-28 05:10:07,537 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:10:08,153 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:08,225 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:08,236 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:08,246 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:08,261 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:08,317 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:08,321 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:08,324 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:08,325 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:08,328 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:08,330 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:08,335 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:08,336 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:08,342 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:08,344 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:08,347 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:08,348 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:08,349 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:08,350 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:08,356 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:08,367 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:10:08,397 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-11-28 05:10:08,398 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@40aa2ce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:08, skipping insertion in model container [2024-11-28 05:10:08,398 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:10:08,399 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-28 05:10:08,402 INFO L158 Benchmark]: Toolchain (without parser) took 953.85ms. Allocated memory is still 142.6MB. Free memory was 117.0MB in the beginning and 97.0MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 05:10:08,402 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 142.6MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:10:08,407 INFO L158 Benchmark]: CACSL2BoogieTranslator took 949.81ms. Allocated memory is still 142.6MB. Free memory was 117.0MB in the beginning and 97.0MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 05:10:08,408 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 142.6MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 949.81ms. Allocated memory is still 142.6MB. Free memory was 117.0MB in the beginning and 97.0MB in the end (delta: 20.0MB). 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_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:10:11,512 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:10:11,643 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2024-11-28 05:10:11,654 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:10:11,657 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:10:11,719 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:10:11,720 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:10:11,721 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:10:11,721 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:10:11,721 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:10:11,722 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:10:11,722 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:10:11,722 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:10:11,723 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:10:11,723 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:10:11,723 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:10:11,723 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:10:11,723 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:10:11,724 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:10:11,724 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:10:11,724 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:10:11,724 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:10:11,724 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 05:10:11,724 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 05:10:11,724 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:10:11,725 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:10:11,725 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 05:10:11,725 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 05:10:11,725 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 05:10:11,725 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 05:10:11,725 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:10:11,726 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:10:11,726 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:10:11,726 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:10:11,726 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:10:11,726 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:10:11,727 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:10:11,727 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:10:11,727 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:10:11,727 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:10:11,727 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:10:11,727 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:10:11,727 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:10:11,727 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:10:11,728 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:10:11,728 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:10:11,728 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 05:10:11,728 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 05:10:11,728 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:10:11,728 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:10:11,729 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:10:11,729 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:10:11,729 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_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 [2024-11-28 05:10:12,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:10:12,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:10:12,150 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:10:12,152 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:10:12,152 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:10:12,154 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test3-2.i [2024-11-28 05:10:15,892 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/data/7c3a44ee6/a65a1fc9441646009c952736a7af7ee9/FLAG4025b4a58 [2024-11-28 05:10:16,353 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:10:16,353 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test3-2.i [2024-11-28 05:10:16,377 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/data/7c3a44ee6/a65a1fc9441646009c952736a7af7ee9/FLAG4025b4a58 [2024-11-28 05:10:16,462 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/data/7c3a44ee6/a65a1fc9441646009c952736a7af7ee9 [2024-11-28 05:10:16,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:10:16,467 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:10:16,468 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:10:16,468 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:10:16,474 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:10:16,475 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:10:16" (1/1) ... [2024-11-28 05:10:16,476 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@723da3ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:16, skipping insertion in model container [2024-11-28 05:10:16,476 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:10:16" (1/1) ... [2024-11-28 05:10:16,534 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:10:17,090 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,157 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,163 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,168 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,179 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,234 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,234 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,238 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,239 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,243 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,245 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,247 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,248 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,256 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,257 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,261 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,262 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,264 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,265 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,271 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:10:17,317 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-28 05:10:17,342 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:10:17,412 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,461 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,467 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,477 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,491 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,531 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,535 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,538 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,540 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,543 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,545 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,547 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,548 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,555 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,556 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,562 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,563 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,565 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,566 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,573 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:10:17,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:10:17,588 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:10:17,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:10:17,797 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:10:17,798 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:17 WrapperNode [2024-11-28 05:10:17,798 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:10:17,800 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:10:17,800 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:10:17,800 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:10:17,810 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:17" (1/1) ... [2024-11-28 05:10:17,885 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:17" (1/1) ... [2024-11-28 05:10:18,004 INFO L138 Inliner]: procedures = 180, calls = 325, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1149 [2024-11-28 05:10:18,004 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:10:18,005 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:10:18,005 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:10:18,005 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:10:18,014 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:17" (1/1) ... [2024-11-28 05:10:18,015 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:17" (1/1) ... [2024-11-28 05:10:18,024 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:17" (1/1) ... [2024-11-28 05:10:18,147 INFO L175 MemorySlicer]: Split 302 memory accesses to 3 slices as follows [2, 266, 34]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 62 writes are split as follows [0, 58, 4]. [2024-11-28 05:10:18,147 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:17" (1/1) ... [2024-11-28 05:10:18,147 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:17" (1/1) ... [2024-11-28 05:10:18,242 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:17" (1/1) ... [2024-11-28 05:10:18,254 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:17" (1/1) ... [2024-11-28 05:10:18,276 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:17" (1/1) ... [2024-11-28 05:10:18,286 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:17" (1/1) ... [2024-11-28 05:10:18,297 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:17" (1/1) ... [2024-11-28 05:10:18,318 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:10:18,319 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:10:18,319 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:10:18,319 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:10:18,320 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:17" (1/1) ... [2024-11-28 05:10:18,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:10:18,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:10:18,362 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:10:18,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:10:18,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-28 05:10:18,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-28 05:10:18,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-28 05:10:18,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 05:10:18,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 05:10:18,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-28 05:10:18,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 05:10:18,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 05:10:18,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-28 05:10:18,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-28 05:10:18,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-28 05:10:18,401 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-28 05:10:18,401 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-28 05:10:18,401 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-28 05:10:18,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 05:10:18,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:10:18,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 05:10:18,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 05:10:18,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 05:10:18,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 05:10:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 05:10:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 05:10:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 05:10:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-28 05:10:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-28 05:10:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-28 05:10:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 05:10:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 05:10:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 05:10:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-28 05:10:18,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:10:18,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:10:18,773 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:10:18,775 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:10:28,608 INFO L? ?]: Removed 143 outVars from TransFormulas that were not future-live. [2024-11-28 05:10:28,609 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:10:28,630 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:10:28,630 INFO L312 CfgBuilder]: Removed 41 assume(true) statements. [2024-11-28 05:10:28,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:10:28 BoogieIcfgContainer [2024-11-28 05:10:28,631 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:10:28,634 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:10:28,634 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:10:28,641 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:10:28,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:10:16" (1/3) ... [2024-11-28 05:10:28,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cb06f9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:10:28, skipping insertion in model container [2024-11-28 05:10:28,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:17" (2/3) ... [2024-11-28 05:10:28,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cb06f9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:10:28, skipping insertion in model container [2024-11-28 05:10:28,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:10:28" (3/3) ... [2024-11-28 05:10:28,644 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SFH_nondet_test3-2.i [2024-11-28 05:10:28,664 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:10:28,666 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SFH_nondet_test3-2.i that has 5 procedures, 246 locations, 1 initial locations, 43 loop locations, and 2 error locations. [2024-11-28 05:10:28,729 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:10:28,746 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;@46ca6af4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:10:28,746 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 05:10:28,752 INFO L276 IsEmpty]: Start isEmpty. Operand has 238 states, 228 states have (on average 1.644736842105263) internal successors, (375), 231 states have internal predecessors, (375), 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) [2024-11-28 05:10:28,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-28 05:10:28,759 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:10:28,760 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-28 05:10:28,760 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:10:28,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:10:28,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1665367, now seen corresponding path program 1 times [2024-11-28 05:10:28,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:10:28,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1866631367] [2024-11-28 05:10:28,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:10:28,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:10:28,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:10:28,780 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:10:28,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 05:10:29,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:10:29,061 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 05:10:29,067 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:10:29,196 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 [2024-11-28 05:10:29,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:10:29,205 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:10:29,208 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:10:29,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866631367] [2024-11-28 05:10:29,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1866631367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:10:29,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:10:29,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:10:29,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536487757] [2024-11-28 05:10:29,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:10:29,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:10:29,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:10:29,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:10:29,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-28 05:10:29,253 INFO L87 Difference]: Start difference. First operand has 238 states, 228 states have (on average 1.644736842105263) internal successors, (375), 231 states have internal predecessors, (375), 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) [2024-11-28 05:10:33,692 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 [] [2024-11-28 05:10:34,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:10:34,095 INFO L93 Difference]: Finished difference Result 364 states and 476 transitions. [2024-11-28 05:10:34,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:10:34,108 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 [2024-11-28 05:10:34,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:10:34,120 INFO L225 Difference]: With dead ends: 364 [2024-11-28 05:10:34,120 INFO L226 Difference]: Without dead ends: 361 [2024-11-28 05:10:34,122 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 [2024-11-28 05:10:34,126 INFO L435 NwaCegarLoop]: 300 mSDtfsCounter, 160 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 477 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:10:34,127 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 581 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 1 Unknown, 477 Unchecked, 4.8s Time] [2024-11-28 05:10:34,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-28 05:10:34,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 235. [2024-11-28 05:10:34,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 226 states have (on average 1.2964601769911503) internal successors, (293), 228 states have internal predecessors, (293), 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) [2024-11-28 05:10:34,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 303 transitions. [2024-11-28 05:10:34,220 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 303 transitions. Word has length 4 [2024-11-28 05:10:34,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:10:34,220 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 303 transitions. [2024-11-28 05:10:34,221 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) [2024-11-28 05:10:34,221 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 303 transitions. [2024-11-28 05:10:34,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-28 05:10:34,222 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:10:34,223 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:10:34,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 05:10:34,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:10:34,427 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:10:34,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:10:34,428 INFO L85 PathProgramCache]: Analyzing trace with hash -372073889, now seen corresponding path program 1 times [2024-11-28 05:10:34,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:10:34,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [930563167] [2024-11-28 05:10:34,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:10:34,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:10:34,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:10:34,431 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:10:34,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 05:10:34,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:10:34,703 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 05:10:34,706 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:10:34,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:10:34,907 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:10:34,907 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:10:34,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930563167] [2024-11-28 05:10:34,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930563167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:10:34,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:10:34,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:10:34,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768523480] [2024-11-28 05:10:34,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:10:34,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:10:34,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:10:34,910 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:10:34,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:10:34,910 INFO L87 Difference]: Start difference. First operand 235 states and 303 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) [2024-11-28 05:10:39,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:10:42,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:10:42,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:10:42,659 INFO L93 Difference]: Finished difference Result 384 states and 497 transitions. [2024-11-28 05:10:42,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:10:42,661 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 [2024-11-28 05:10:42,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:10:42,663 INFO L225 Difference]: With dead ends: 384 [2024-11-28 05:10:42,664 INFO L226 Difference]: Without dead ends: 384 [2024-11-28 05:10:42,664 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:10:42,665 INFO L435 NwaCegarLoop]: 280 mSDtfsCounter, 184 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2024-11-28 05:10:42,665 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 792 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 110 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2024-11-28 05:10:42,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2024-11-28 05:10:42,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 353. [2024-11-28 05:10:42,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 343 states have (on average 1.2973760932944607) internal successors, (445), 346 states have internal predecessors, (445), 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) [2024-11-28 05:10:42,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 457 transitions. [2024-11-28 05:10:42,699 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 457 transitions. Word has length 16 [2024-11-28 05:10:42,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:10:42,699 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 457 transitions. [2024-11-28 05:10:42,699 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) [2024-11-28 05:10:42,699 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 457 transitions. [2024-11-28 05:10:42,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-28 05:10:42,700 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:10:42,700 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:10:42,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 05:10:42,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:10:42,901 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:10:42,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:10:42,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1426676485, now seen corresponding path program 1 times [2024-11-28 05:10:42,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:10:42,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [318607563] [2024-11-28 05:10:42,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:10:42,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:10:42,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:10:42,904 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:10:42,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 05:10:43,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:10:43,135 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 05:10:43,138 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:10:43,415 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 [2024-11-28 05:10:43,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:10:43,416 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:10:43,416 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:10:43,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318607563] [2024-11-28 05:10:43,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318607563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:10:43,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:10:43,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:10:43,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550303932] [2024-11-28 05:10:43,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:10:43,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:10:43,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:10:43,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:10:43,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-28 05:10:43,417 INFO L87 Difference]: Start difference. First operand 353 states and 457 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:10:47,611 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 [] [2024-11-28 05:10:48,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:10:48,416 INFO L93 Difference]: Finished difference Result 447 states and 577 transitions. [2024-11-28 05:10:48,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:10:48,422 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-28 05:10:48,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:10:48,425 INFO L225 Difference]: With dead ends: 447 [2024-11-28 05:10:48,425 INFO L226 Difference]: Without dead ends: 439 [2024-11-28 05:10:48,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-28 05:10:48,426 INFO L435 NwaCegarLoop]: 296 mSDtfsCounter, 88 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 407 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:10:48,426 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 577 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 1 Unknown, 407 Unchecked, 5.0s Time] [2024-11-28 05:10:48,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-28 05:10:48,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 399. [2024-11-28 05:10:48,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 388 states have (on average 1.2963917525773196) internal successors, (503), 391 states have internal predecessors, (503), 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) [2024-11-28 05:10:48,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 517 transitions. [2024-11-28 05:10:48,449 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 517 transitions. Word has length 16 [2024-11-28 05:10:48,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:10:48,450 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 517 transitions. [2024-11-28 05:10:48,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:10:48,450 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 517 transitions. [2024-11-28 05:10:48,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-28 05:10:48,452 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:10:48,452 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:10:48,465 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 05:10:48,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:10:48,657 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:10:48,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:10:48,658 INFO L85 PathProgramCache]: Analyzing trace with hash 700544482, now seen corresponding path program 1 times [2024-11-28 05:10:48,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:10:48,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1051773274] [2024-11-28 05:10:48,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:10:48,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:10:48,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:10:48,663 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:10:48,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 05:10:48,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:10:48,942 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:10:48,946 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:10:49,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:10:49,099 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:10:49,099 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:10:49,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051773274] [2024-11-28 05:10:49,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051773274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:10:49,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:10:49,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:10:49,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120974309] [2024-11-28 05:10:49,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:10:49,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:10:49,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:10:49,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:10:49,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:10:49,101 INFO L87 Difference]: Start difference. First operand 399 states and 517 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) [2024-11-28 05:10:49,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:10:49,334 INFO L93 Difference]: Finished difference Result 426 states and 529 transitions. [2024-11-28 05:10:49,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:10:49,335 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 [2024-11-28 05:10:49,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:10:49,337 INFO L225 Difference]: With dead ends: 426 [2024-11-28 05:10:49,337 INFO L226 Difference]: Without dead ends: 426 [2024-11-28 05:10:49,338 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:10:49,339 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 23 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 795 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 [2024-11-28 05:10:49,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 795 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 05:10:49,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-11-28 05:10:49,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 423. [2024-11-28 05:10:49,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 412 states have (on average 1.2427184466019416) internal successors, (512), 415 states have internal predecessors, (512), 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) [2024-11-28 05:10:49,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 526 transitions. [2024-11-28 05:10:49,359 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 526 transitions. Word has length 51 [2024-11-28 05:10:49,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:10:49,360 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 526 transitions. [2024-11-28 05:10:49,360 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) [2024-11-28 05:10:49,360 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 526 transitions. [2024-11-28 05:10:49,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-28 05:10:49,362 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:10:49,362 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:10:49,378 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 05:10:49,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:10:49,567 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:10:49,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:10:49,568 INFO L85 PathProgramCache]: Analyzing trace with hash 834557988, now seen corresponding path program 1 times [2024-11-28 05:10:49,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:10:49,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1349072809] [2024-11-28 05:10:49,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:10:49,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:10:49,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:10:49,571 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:10:49,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 05:10:49,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:10:49,857 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:10:49,860 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:10:49,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:10:49,918 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:10:49,919 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:10:49,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349072809] [2024-11-28 05:10:49,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349072809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:10:49,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:10:49,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:10:49,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451513113] [2024-11-28 05:10:49,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:10:49,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:10:49,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:10:49,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:10:49,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:10:49,921 INFO L87 Difference]: Start difference. First operand 423 states and 526 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) [2024-11-28 05:10:50,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:10:50,103 INFO L93 Difference]: Finished difference Result 387 states and 469 transitions. [2024-11-28 05:10:50,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:10:50,104 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 [2024-11-28 05:10:50,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:10:50,106 INFO L225 Difference]: With dead ends: 387 [2024-11-28 05:10:50,107 INFO L226 Difference]: Without dead ends: 387 [2024-11-28 05:10:50,107 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:10:50,108 INFO L435 NwaCegarLoop]: 268 mSDtfsCounter, 27 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 792 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 [2024-11-28 05:10:50,108 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 792 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:10:50,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2024-11-28 05:10:50,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 387. [2024-11-28 05:10:50,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 376 states have (on average 1.2101063829787233) internal successors, (455), 379 states have internal predecessors, (455), 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) [2024-11-28 05:10:50,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 469 transitions. [2024-11-28 05:10:50,124 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 469 transitions. Word has length 51 [2024-11-28 05:10:50,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:10:50,124 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 469 transitions. [2024-11-28 05:10:50,124 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) [2024-11-28 05:10:50,124 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 469 transitions. [2024-11-28 05:10:50,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-28 05:10:50,126 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:10:50,126 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:10:50,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 05:10:50,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:10:50,327 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:10:50,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:10:50,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1311774294, now seen corresponding path program 1 times [2024-11-28 05:10:50,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:10:50,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [803685845] [2024-11-28 05:10:50,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:10:50,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:10:50,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:10:50,330 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:10:50,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 05:10:50,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:10:50,601 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 05:10:50,606 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:10:50,627 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:10:50,628 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:10:50,629 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:10:50,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2024-11-28 05:10:50,784 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:10:50,784 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-11-28 05:10:50,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:10:50,902 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:10:50,902 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:10:50,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803685845] [2024-11-28 05:10:50,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [803685845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:10:50,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:10:50,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:10:50,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684510370] [2024-11-28 05:10:50,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:10:50,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:10:50,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:10:50,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:10:50,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:10:50,908 INFO L87 Difference]: Start difference. First operand 387 states and 469 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) [2024-11-28 05:10:51,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:10:51,762 INFO L93 Difference]: Finished difference Result 396 states and 488 transitions. [2024-11-28 05:10:51,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:10:51,764 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 [2024-11-28 05:10:51,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:10:51,766 INFO L225 Difference]: With dead ends: 396 [2024-11-28 05:10:51,766 INFO L226 Difference]: Without dead ends: 393 [2024-11-28 05:10:51,767 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 [2024-11-28 05:10:51,770 INFO L435 NwaCegarLoop]: 280 mSDtfsCounter, 112 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1094 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 [2024-11-28 05:10:51,774 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1094 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 05:10:51,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-28 05:10:51,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 344. [2024-11-28 05:10:51,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 334 states have (on average 1.2305389221556886) internal successors, (411), 337 states have internal predecessors, (411), 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) [2024-11-28 05:10:51,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 423 transitions. [2024-11-28 05:10:51,804 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 423 transitions. Word has length 51 [2024-11-28 05:10:51,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:10:51,805 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 423 transitions. [2024-11-28 05:10:51,805 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) [2024-11-28 05:10:51,805 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 423 transitions. [2024-11-28 05:10:51,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 05:10:51,808 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:10:51,808 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] [2024-11-28 05:10:51,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 05:10:52,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:10:52,013 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:10:52,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:10:52,014 INFO L85 PathProgramCache]: Analyzing trace with hash 439602434, now seen corresponding path program 1 times [2024-11-28 05:10:52,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:10:52,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1532847594] [2024-11-28 05:10:52,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:10:52,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:10:52,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:10:52,019 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:10:52,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 05:10:52,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:10:52,629 INFO L256 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:10:52,637 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:10:52,667 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 05:10:52,667 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:10:52,667 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:10:52,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532847594] [2024-11-28 05:10:52,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532847594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:10:52,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:10:52,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:10:52,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088725859] [2024-11-28 05:10:52,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:10:52,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:10:52,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:10:52,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:10:52,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:10:52,670 INFO L87 Difference]: Start difference. First operand 344 states and 423 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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) [2024-11-28 05:10:52,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:10:52,835 INFO L93 Difference]: Finished difference Result 384 states and 463 transitions. [2024-11-28 05:10:52,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:10:52,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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 [2024-11-28 05:10:52,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:10:52,839 INFO L225 Difference]: With dead ends: 384 [2024-11-28 05:10:52,839 INFO L226 Difference]: Without dead ends: 384 [2024-11-28 05:10:52,839 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:10:52,840 INFO L435 NwaCegarLoop]: 267 mSDtfsCounter, 8 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:10:52,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 519 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 05:10:52,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2024-11-28 05:10:52,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 384. [2024-11-28 05:10:52,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 374 states have (on average 1.2058823529411764) internal successors, (451), 377 states have internal predecessors, (451), 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) [2024-11-28 05:10:52,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 463 transitions. [2024-11-28 05:10:52,854 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 463 transitions. Word has length 88 [2024-11-28 05:10:52,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:10:52,855 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 463 transitions. [2024-11-28 05:10:52,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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) [2024-11-28 05:10:52,855 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 463 transitions. [2024-11-28 05:10:52,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 05:10:52,857 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:10:52,857 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] [2024-11-28 05:10:52,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 05:10:53,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:10:53,058 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:10:53,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:10:53,058 INFO L85 PathProgramCache]: Analyzing trace with hash 2125782272, now seen corresponding path program 1 times [2024-11-28 05:10:53,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:10:53,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1080780846] [2024-11-28 05:10:53,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:10:53,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:10:53,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:10:53,061 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:10:53,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 05:10:53,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:10:53,645 INFO L256 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:10:53,649 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:10:53,694 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 05:10:53,694 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:10:53,694 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:10:53,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080780846] [2024-11-28 05:10:53,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080780846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:10:53,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:10:53,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:10:53,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659913912] [2024-11-28 05:10:53,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:10:53,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:10:53,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:10:53,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:10:53,696 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:10:53,696 INFO L87 Difference]: Start difference. First operand 384 states and 463 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) [2024-11-28 05:10:53,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:10:53,899 INFO L93 Difference]: Finished difference Result 348 states and 405 transitions. [2024-11-28 05:10:53,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:10:53,900 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 [2024-11-28 05:10:53,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:10:53,902 INFO L225 Difference]: With dead ends: 348 [2024-11-28 05:10:53,902 INFO L226 Difference]: Without dead ends: 348 [2024-11-28 05:10:53,902 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 [2024-11-28 05:10:53,903 INFO L435 NwaCegarLoop]: 253 mSDtfsCounter, 32 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:10:53,903 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 745 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 05:10:53,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2024-11-28 05:10:53,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2024-11-28 05:10:53,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 338 states have (on average 1.1627218934911243) internal successors, (393), 341 states have internal predecessors, (393), 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) [2024-11-28 05:10:53,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 405 transitions. [2024-11-28 05:10:53,915 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 405 transitions. Word has length 88 [2024-11-28 05:10:53,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:10:53,916 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 405 transitions. [2024-11-28 05:10:53,916 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) [2024-11-28 05:10:53,916 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 405 transitions. [2024-11-28 05:10:53,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 05:10:53,918 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:10:53,918 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] [2024-11-28 05:10:53,937 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 05:10:54,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:10:54,119 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:10:54,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:10:54,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1464104462, now seen corresponding path program 1 times [2024-11-28 05:10:54,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:10:54,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1902372814] [2024-11-28 05:10:54,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:10:54,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:10:54,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:10:54,124 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:10:54,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 05:10:54,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:10:54,754 INFO L256 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:10:54,758 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:10:54,820 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 05:10:54,820 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:10:54,820 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:10:54,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902372814] [2024-11-28 05:10:54,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902372814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:10:54,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:10:54,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:10:54,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329013043] [2024-11-28 05:10:54,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:10:54,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:10:54,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:10:54,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:10:54,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:10:54,823 INFO L87 Difference]: Start difference. First operand 348 states and 405 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) [2024-11-28 05:10:54,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:10:54,899 INFO L93 Difference]: Finished difference Result 351 states and 409 transitions. [2024-11-28 05:10:54,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:10:54,900 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 [2024-11-28 05:10:54,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:10:54,903 INFO L225 Difference]: With dead ends: 351 [2024-11-28 05:10:54,904 INFO L226 Difference]: Without dead ends: 351 [2024-11-28 05:10:54,904 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 [2024-11-28 05:10:54,905 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 0 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 812 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 [2024-11-28 05:10:54,905 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 812 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:10:54,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2024-11-28 05:10:54,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2024-11-28 05:10:54,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 340 states have (on average 1.1647058823529413) internal successors, (396), 344 states have internal predecessors, (396), 6 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-28 05:10:54,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 409 transitions. [2024-11-28 05:10:54,918 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 409 transitions. Word has length 88 [2024-11-28 05:10:54,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:10:54,918 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 409 transitions. [2024-11-28 05:10:54,919 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) [2024-11-28 05:10:54,919 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 409 transitions. [2024-11-28 05:10:54,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-28 05:10:54,920 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:10:54,920 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] [2024-11-28 05:10:54,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 05:10:55,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:10:55,121 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:10:55,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:10:55,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1380123052, now seen corresponding path program 1 times [2024-11-28 05:10:55,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:10:55,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [217744403] [2024-11-28 05:10:55,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:10:55,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:10:55,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:10:55,124 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:10:55,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 05:10:55,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:10:55,796 INFO L256 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 05:10:55,799 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:10:55,881 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 05:10:55,882 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:10:56,103 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 05:10:56,103 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:10:56,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217744403] [2024-11-28 05:10:56,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [217744403] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:10:56,103 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:10:56,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-28 05:10:56,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246756797] [2024-11-28 05:10:56,104 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:10:56,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 05:10:56,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:10:56,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 05:10:56,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:10:56,107 INFO L87 Difference]: Start difference. First operand 351 states and 409 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) [2024-11-28 05:10:56,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:10:56,370 INFO L93 Difference]: Finished difference Result 362 states and 426 transitions. [2024-11-28 05:10:56,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 05:10:56,372 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 [2024-11-28 05:10:56,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:10:56,374 INFO L225 Difference]: With dead ends: 362 [2024-11-28 05:10:56,375 INFO L226 Difference]: Without dead ends: 362 [2024-11-28 05:10:56,375 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 [2024-11-28 05:10:56,376 INFO L435 NwaCegarLoop]: 271 mSDtfsCounter, 4 mSDsluCounter, 1074 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1345 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:10:56,376 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1345 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 05:10:56,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-11-28 05:10:56,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 360. [2024-11-28 05:10:56,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 348 states have (on average 1.1781609195402298) internal successors, (410), 352 states have internal predecessors, (410), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-28 05:10:56,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 424 transitions. [2024-11-28 05:10:56,393 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 424 transitions. Word has length 90 [2024-11-28 05:10:56,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:10:56,393 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 424 transitions. [2024-11-28 05:10:56,394 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) [2024-11-28 05:10:56,394 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 424 transitions. [2024-11-28 05:10:56,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-28 05:10:56,395 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:10:56,395 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] [2024-11-28 05:10:56,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 05:10:56,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:10:56,600 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:10:56,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:10:56,600 INFO L85 PathProgramCache]: Analyzing trace with hash -15170226, now seen corresponding path program 2 times [2024-11-28 05:10:56,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:10:56,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1861376450] [2024-11-28 05:10:56,601 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:10:56,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:10:56,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:10:56,603 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:10:56,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 05:10:57,376 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:10:57,377 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:10:57,390 INFO L256 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 05:10:57,394 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:10:58,364 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:10:58,365 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:10:58,366 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:10:58,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2024-11-28 05:10:58,526 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:10:58,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-11-28 05:10:58,580 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-28 05:10:58,580 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:10:58,580 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:10:58,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861376450] [2024-11-28 05:10:58,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861376450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:10:58,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:10:58,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 05:10:58,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335918408] [2024-11-28 05:10:58,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:10:58,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:10:58,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:10:58,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:10:58,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:10:58,582 INFO L87 Difference]: Start difference. First operand 360 states and 424 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) [2024-11-28 05:10:59,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:10:59,220 INFO L93 Difference]: Finished difference Result 472 states and 563 transitions. [2024-11-28 05:10:59,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:10:59,221 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 [2024-11-28 05:10:59,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:10:59,223 INFO L225 Difference]: With dead ends: 472 [2024-11-28 05:10:59,223 INFO L226 Difference]: Without dead ends: 472 [2024-11-28 05:10:59,224 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 [2024-11-28 05:10:59,224 INFO L435 NwaCegarLoop]: 265 mSDtfsCounter, 378 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:10:59,227 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 842 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 05:10:59,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2024-11-28 05:10:59,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 362. [2024-11-28 05:10:59,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 350 states have (on average 1.177142857142857) internal successors, (412), 354 states have internal predecessors, (412), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-28 05:10:59,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 426 transitions. [2024-11-28 05:10:59,244 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 426 transitions. Word has length 94 [2024-11-28 05:10:59,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:10:59,245 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 426 transitions. [2024-11-28 05:10:59,246 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) [2024-11-28 05:10:59,246 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 426 transitions. [2024-11-28 05:10:59,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-28 05:10:59,247 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:10:59,248 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] [2024-11-28 05:10:59,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 05:10:59,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:10:59,448 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:10:59,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:10:59,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1688761081, now seen corresponding path program 1 times [2024-11-28 05:10:59,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:10:59,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1864183470] [2024-11-28 05:10:59,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:10:59,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:10:59,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:10:59,453 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:10:59,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 05:11:00,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:00,137 INFO L256 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:11:00,142 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:11:00,761 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-28 05:11:00,761 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:11:00,761 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:11:00,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864183470] [2024-11-28 05:11:00,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864183470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:11:00,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:11:00,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:11:00,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921364294] [2024-11-28 05:11:00,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:11:00,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:11:00,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:11:00,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:11:00,764 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:11:00,764 INFO L87 Difference]: Start difference. First operand 362 states and 426 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 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) [2024-11-28 05:11:05,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:11:09,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:11:12,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:12,824 INFO L93 Difference]: Finished difference Result 527 states and 631 transitions. [2024-11-28 05:11:12,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:11:12,826 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 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 129 [2024-11-28 05:11:12,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:12,829 INFO L225 Difference]: With dead ends: 527 [2024-11-28 05:11:12,829 INFO L226 Difference]: Without dead ends: 527 [2024-11-28 05:11:12,829 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:11:12,830 INFO L435 NwaCegarLoop]: 303 mSDtfsCounter, 524 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:12,830 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 585 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 136 Invalid, 2 Unknown, 0 Unchecked, 12.0s Time] [2024-11-28 05:11:12,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2024-11-28 05:11:12,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 454. [2024-11-28 05:11:12,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 440 states have (on average 1.1772727272727272) internal successors, (518), 445 states have internal predecessors, (518), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-11-28 05:11:12,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 536 transitions. [2024-11-28 05:11:12,848 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 536 transitions. Word has length 129 [2024-11-28 05:11:12,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:12,849 INFO L471 AbstractCegarLoop]: Abstraction has 454 states and 536 transitions. [2024-11-28 05:11:12,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 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) [2024-11-28 05:11:12,849 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 536 transitions. [2024-11-28 05:11:12,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-28 05:11:12,851 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:12,852 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] [2024-11-28 05:11:12,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-28 05:11:13,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:13,052 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:11:13,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:13,053 INFO L85 PathProgramCache]: Analyzing trace with hash -2002960715, now seen corresponding path program 1 times [2024-11-28 05:11:13,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:11:13,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1909407233] [2024-11-28 05:11:13,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:13,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:13,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:11:13,056 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:11:13,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 05:11:13,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:13,759 INFO L256 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 05:11:13,763 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:11:13,938 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 05:11:13,938 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:11:14,307 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-28 05:11:14,307 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:11:14,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909407233] [2024-11-28 05:11:14,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1909407233] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:11:14,307 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:11:14,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-28 05:11:14,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55637932] [2024-11-28 05:11:14,308 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:11:14,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 05:11:14,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:11:14,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 05:11:14,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-28 05:11:14,311 INFO L87 Difference]: Start difference. First operand 454 states and 536 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) [2024-11-28 05:11:14,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:14,857 INFO L93 Difference]: Finished difference Result 462 states and 546 transitions. [2024-11-28 05:11:14,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 05:11:14,858 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 [2024-11-28 05:11:14,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:14,861 INFO L225 Difference]: With dead ends: 462 [2024-11-28 05:11:14,861 INFO L226 Difference]: Without dead ends: 460 [2024-11-28 05:11:14,861 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2024-11-28 05:11:14,864 INFO L435 NwaCegarLoop]: 273 mSDtfsCounter, 5 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:14,864 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1088 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 05:11:14,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2024-11-28 05:11:14,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 458. [2024-11-28 05:11:14,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 444 states have (on average 1.1801801801801801) internal successors, (524), 449 states have internal predecessors, (524), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 05:11:14,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 541 transitions. [2024-11-28 05:11:14,882 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 541 transitions. Word has length 137 [2024-11-28 05:11:14,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:14,882 INFO L471 AbstractCegarLoop]: Abstraction has 458 states and 541 transitions. [2024-11-28 05:11:14,882 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) [2024-11-28 05:11:14,883 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 541 transitions. [2024-11-28 05:11:14,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-28 05:11:14,886 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:14,886 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] [2024-11-28 05:11:14,908 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-28 05:11:15,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:15,087 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:11:15,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:15,087 INFO L85 PathProgramCache]: Analyzing trace with hash -552491979, now seen corresponding path program 2 times [2024-11-28 05:11:15,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:11:15,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1849539718] [2024-11-28 05:11:15,088 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:11:15,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:15,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:11:15,091 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:11:15,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 05:11:15,955 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:11:15,956 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:11:15,973 INFO L256 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 05:11:15,977 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:11:16,165 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-28 05:11:16,165 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:11:16,733 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-28 05:11:16,734 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:11:16,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849539718] [2024-11-28 05:11:16,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1849539718] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:11:16,734 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:11:16,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-28 05:11:16,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279344350] [2024-11-28 05:11:16,735 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:11:16,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 05:11:16,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:11:16,736 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 05:11:16,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-28 05:11:16,737 INFO L87 Difference]: Start difference. First operand 458 states and 541 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) [2024-11-28 05:11:17,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:17,735 INFO L93 Difference]: Finished difference Result 470 states and 557 transitions. [2024-11-28 05:11:17,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 05:11:17,736 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 [2024-11-28 05:11:17,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:17,738 INFO L225 Difference]: With dead ends: 470 [2024-11-28 05:11:17,739 INFO L226 Difference]: Without dead ends: 466 [2024-11-28 05:11:17,739 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-11-28 05:11:17,740 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 7 mSDsluCounter, 1887 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2159 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:17,741 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2159 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 05:11:17,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2024-11-28 05:11:17,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 464. [2024-11-28 05:11:17,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 450 states have (on average 1.1866666666666668) internal successors, (534), 455 states have internal predecessors, (534), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 05:11:17,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 551 transitions. [2024-11-28 05:11:17,758 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 551 transitions. Word has length 141 [2024-11-28 05:11:17,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:17,759 INFO L471 AbstractCegarLoop]: Abstraction has 464 states and 551 transitions. [2024-11-28 05:11:17,759 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) [2024-11-28 05:11:17,759 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 551 transitions. [2024-11-28 05:11:17,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-28 05:11:17,761 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:17,762 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] [2024-11-28 05:11:17,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-28 05:11:17,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:17,962 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:11:17,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:17,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1500875, now seen corresponding path program 3 times [2024-11-28 05:11:17,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:11:17,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [108141849] [2024-11-28 05:11:17,964 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 05:11:17,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:17,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:11:17,966 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:11:17,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47234495-6c37-4f16-b614-5df33bf91fc8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process