./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/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_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9a814f1cabb0a814aaaa0ad04ef0792a07c6fb7c73876a2da6ae85372115ff6c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:50:16,268 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:50:16,376 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-28 04:50:16,390 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:50:16,394 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:50:16,446 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:50:16,447 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:50:16,447 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:50:16,448 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:50:16,448 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:50:16,449 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:50:16,449 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:50:16,450 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:50:16,450 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:50:16,450 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:50:16,451 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:50:16,451 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:50:16,451 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:50:16,452 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:50:16,452 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:50:16,452 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 04:50:16,452 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 04:50:16,452 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 04:50:16,452 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:50:16,452 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:50:16,452 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:50:16,453 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:50:16,453 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:50:16,453 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:50:16,453 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:50:16,453 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:50:16,453 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:50:16,454 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:50:16,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:50:16,455 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:50:16,455 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:50:16,455 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:50:16,455 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:50:16,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:50:16,455 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:50:16,455 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:50:16,456 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:50:16,456 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:50:16,456 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:50:16,456 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:50:16,456 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:50:16,456 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:50:16,456 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_00a10615-db7f-45cd-abbe-18681784e626/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a814f1cabb0a814aaaa0ad04ef0792a07c6fb7c73876a2da6ae85372115ff6c [2024-11-28 04:50:16,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:50:16,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:50:16,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:50:16,860 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:50:16,861 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:50:16,862 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i [2024-11-28 04:50:20,774 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/data/4332d5f98/010535af6ec6464ab994ed6b32cc9d7a/FLAG39286d5de [2024-11-28 04:50:21,354 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:50:21,359 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i [2024-11-28 04:50:21,397 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/data/4332d5f98/010535af6ec6464ab994ed6b32cc9d7a/FLAG39286d5de [2024-11-28 04:50:21,417 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/data/4332d5f98/010535af6ec6464ab994ed6b32cc9d7a [2024-11-28 04:50:21,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:50:21,422 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:50:21,423 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:50:21,424 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:50:21,430 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:50:21,431 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:50:21" (1/1) ... [2024-11-28 04:50:21,432 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4164bb46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:21, skipping insertion in model container [2024-11-28 04:50:21,432 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:50:21" (1/1) ... [2024-11-28 04:50:21,489 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:50:22,012 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 04:50:22,055 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 04:50:22,061 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 04:50:22,067 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 04:50:22,076 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 04:50:22,160 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 04:50:22,162 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:50:22,166 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 04:50:22,167 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 04:50:22,174 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:50:22,176 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 04:50:22,177 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 04:50:22,178 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 04:50:22,184 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 04:50:22,193 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:50:22,209 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 04:50:22,209 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@348b2862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:22, skipping insertion in model container [2024-11-28 04:50:22,210 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:50:22,210 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-28 04:50:22,213 INFO L158 Benchmark]: Toolchain (without parser) took 789.78ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 84.9MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:50:22,213 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 167.8MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:50:22,214 INFO L158 Benchmark]: CACSL2BoogieTranslator took 786.79ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 84.9MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:50:22,215 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 167.8MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 786.79ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 84.9MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 747]: 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_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/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_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9a814f1cabb0a814aaaa0ad04ef0792a07c6fb7c73876a2da6ae85372115ff6c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:50:25,427 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:50:25,556 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-28 04:50:25,564 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:50:25,564 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:50:25,596 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:50:25,597 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:50:25,597 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:50:25,598 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:50:25,598 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:50:25,598 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:50:25,599 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:50:25,599 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:50:25,599 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:50:25,599 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:50:25,600 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:50:25,600 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:50:25,600 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:50:25,600 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:50:25,600 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:50:25,601 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 04:50:25,601 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 04:50:25,601 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 04:50:25,601 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:50:25,601 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:50:25,602 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 04:50:25,602 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 04:50:25,602 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:50:25,602 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:50:25,602 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:50:25,602 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:50:25,603 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:50:25,603 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:50:25,603 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:50:25,603 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:50:25,603 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:50:25,603 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:50:25,603 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:50:25,604 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:50:25,604 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:50:25,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:50:25,604 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:50:25,604 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:50:25,604 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 04:50:25,604 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 04:50:25,605 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:50:25,605 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:50:25,605 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:50:25,605 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:50:25,606 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_00a10615-db7f-45cd-abbe-18681784e626/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a814f1cabb0a814aaaa0ad04ef0792a07c6fb7c73876a2da6ae85372115ff6c [2024-11-28 04:50:26,017 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:50:26,028 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:50:26,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:50:26,032 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:50:26,033 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:50:26,034 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i [2024-11-28 04:50:29,837 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/data/e00c04aa3/94338f64c5bf459b9a2d9e307cc09215/FLAG9a508e192 [2024-11-28 04:50:30,414 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:50:30,419 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i [2024-11-28 04:50:30,454 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/data/e00c04aa3/94338f64c5bf459b9a2d9e307cc09215/FLAG9a508e192 [2024-11-28 04:50:30,483 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/data/e00c04aa3/94338f64c5bf459b9a2d9e307cc09215 [2024-11-28 04:50:30,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:50:30,489 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:50:30,491 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:50:30,491 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:50:30,499 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:50:30,503 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:50:30" (1/1) ... [2024-11-28 04:50:30,504 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dde9e3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:30, skipping insertion in model container [2024-11-28 04:50:30,504 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:50:30" (1/1) ... [2024-11-28 04:50:30,588 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:50:31,131 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 04:50:31,184 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 04:50:31,190 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 04:50:31,197 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 04:50:31,207 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 04:50:31,257 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 04:50:31,258 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 04:50:31,263 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 04:50:31,263 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 04:50:31,268 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 04:50:31,270 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 04:50:31,271 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 04:50:31,273 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 04:50:31,280 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 04:50:31,287 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:50:31,318 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-28 04:50:31,349 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:50:31,422 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 04:50:31,472 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 04:50:31,479 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 04:50:31,483 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 04:50:31,495 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 04:50:31,558 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 04:50:31,559 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 04:50:31,569 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 04:50:31,570 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 04:50:31,577 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 04:50:31,578 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 04:50:31,579 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 04:50:31,580 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 04:50:31,588 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 04:50:31,595 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:50:31,607 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:50:31,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:50:31,840 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:50:31,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:31 WrapperNode [2024-11-28 04:50:31,841 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:50:31,842 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:50:31,842 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:50:31,842 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:50:31,851 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:31" (1/1) ... [2024-11-28 04:50:31,887 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:31" (1/1) ... [2024-11-28 04:50:31,993 INFO L138 Inliner]: procedures = 180, calls = 279, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1034 [2024-11-28 04:50:31,993 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:50:31,994 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:50:31,994 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:50:31,994 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:50:32,006 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:31" (1/1) ... [2024-11-28 04:50:32,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:31" (1/1) ... [2024-11-28 04:50:32,030 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:31" (1/1) ... [2024-11-28 04:50:32,177 INFO L175 MemorySlicer]: Split 255 memory accesses to 3 slices as follows [2, 219, 34]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 54 writes are split as follows [0, 50, 4]. [2024-11-28 04:50:32,177 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:31" (1/1) ... [2024-11-28 04:50:32,178 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:31" (1/1) ... [2024-11-28 04:50:32,265 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:31" (1/1) ... [2024-11-28 04:50:32,272 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:31" (1/1) ... [2024-11-28 04:50:32,289 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:31" (1/1) ... [2024-11-28 04:50:32,305 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:31" (1/1) ... [2024-11-28 04:50:32,314 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:31" (1/1) ... [2024-11-28 04:50:32,335 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:50:32,336 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:50:32,336 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:50:32,336 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:50:32,340 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:31" (1/1) ... [2024-11-28 04:50:32,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:50:32,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:32,392 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:32,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:50:32,430 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-28 04:50:32,431 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-28 04:50:32,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-28 04:50:32,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-28 04:50:32,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-28 04:50:32,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 04:50:32,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 04:50:32,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-28 04:50:32,432 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 04:50:32,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 04:50:32,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-28 04:50:32,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-28 04:50:32,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-28 04:50:32,433 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-28 04:50:32,433 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-28 04:50:32,433 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-28 04:50:32,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 04:50:32,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:50:32,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 04:50:32,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 04:50:32,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 04:50:32,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 04:50:32,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 04:50:32,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 04:50:32,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 04:50:32,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 04:50:32,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-28 04:50:32,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-28 04:50:32,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-28 04:50:32,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 04:50:32,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 04:50:32,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-28 04:50:32,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:50:32,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:50:32,744 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:50:32,747 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:50:32,779 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 04:50:32,837 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 04:50:32,876 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 04:50:39,389 INFO L? ?]: Removed 1092 outVars from TransFormulas that were not future-live. [2024-11-28 04:50:39,390 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:50:39,419 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:50:39,419 INFO L312 CfgBuilder]: Removed 36 assume(true) statements. [2024-11-28 04:50:39,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:50:39 BoogieIcfgContainer [2024-11-28 04:50:39,419 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:50:39,421 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:50:39,421 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:50:39,427 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:50:39,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:50:30" (1/3) ... [2024-11-28 04:50:39,427 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@344b0a6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:50:39, skipping insertion in model container [2024-11-28 04:50:39,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:31" (2/3) ... [2024-11-28 04:50:39,428 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@344b0a6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:50:39, skipping insertion in model container [2024-11-28 04:50:39,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:50:39" (3/3) ... [2024-11-28 04:50:39,429 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test3-1.i [2024-11-28 04:50:39,444 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:50:39,446 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_OAT_test3-1.i that has 6 procedures, 1085 locations, 1 initial locations, 38 loop locations, and 527 error locations. [2024-11-28 04:50:39,545 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:50:39,562 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;@4f680981, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:50:39,563 INFO L334 AbstractCegarLoop]: Starting to check reachability of 527 error locations. [2024-11-28 04:50:39,574 INFO L276 IsEmpty]: Start isEmpty. Operand has 1075 states, 537 states have (on average 2.2160148975791434) internal successors, (1190), 1068 states have internal predecessors, (1190), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 04:50:39,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-28 04:50:39,584 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:50:39,584 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-28 04:50:39,585 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-28 04:50:39,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:39,594 INFO L85 PathProgramCache]: Analyzing trace with hash 65605, now seen corresponding path program 1 times [2024-11-28 04:50:39,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:50:39,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1293753610] [2024-11-28 04:50:39,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:50:39,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:50:39,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:39,613 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:50:39,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:50:39,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:50:39,882 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:50:39,891 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:50:39,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 04:50:39,971 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 04:50:39,972 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:50:39,973 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:50:39,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293753610] [2024-11-28 04:50:39,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293753610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:50:39,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:50:39,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:50:39,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829491110] [2024-11-28 04:50:39,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:50:39,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:50:39,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:50:40,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:50:40,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:50:40,027 INFO L87 Difference]: Start difference. First operand has 1075 states, 537 states have (on average 2.2160148975791434) internal successors, (1190), 1068 states have internal predecessors, (1190), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 04:50:42,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:50:42,478 INFO L93 Difference]: Finished difference Result 1070 states and 1136 transitions. [2024-11-28 04:50:42,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:50:42,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-11-28 04:50:42,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:50:42,502 INFO L225 Difference]: With dead ends: 1070 [2024-11-28 04:50:42,502 INFO L226 Difference]: Without dead ends: 1068 [2024-11-28 04:50:42,505 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 04:50:42,509 INFO L435 NwaCegarLoop]: 653 mSDtfsCounter, 980 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:50:42,510 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [988 Valid, 716 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-28 04:50:42,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2024-11-28 04:50:42,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 1060. [2024-11-28 04:50:42,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1060 states, 539 states have (on average 2.0556586270871984) internal successors, (1108), 1053 states have internal predecessors, (1108), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 04:50:42,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 1126 transitions. [2024-11-28 04:50:42,628 INFO L78 Accepts]: Start accepts. Automaton has 1060 states and 1126 transitions. Word has length 3 [2024-11-28 04:50:42,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:50:42,629 INFO L471 AbstractCegarLoop]: Abstraction has 1060 states and 1126 transitions. [2024-11-28 04:50:42,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 04:50:42,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1060 states and 1126 transitions. [2024-11-28 04:50:42,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-28 04:50:42,632 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:50:42,633 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-28 04:50:42,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:50:42,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:50:42,835 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-28 04:50:42,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:42,836 INFO L85 PathProgramCache]: Analyzing trace with hash 65606, now seen corresponding path program 1 times [2024-11-28 04:50:42,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:50:42,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [174363589] [2024-11-28 04:50:42,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:50:42,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:50:42,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:42,840 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:50:42,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:50:43,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:50:43,016 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:50:43,018 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:50:43,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:50:43,060 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 04:50:43,061 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:50:43,062 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:50:43,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174363589] [2024-11-28 04:50:43,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [174363589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:50:43,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:50:43,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:50:43,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673303170] [2024-11-28 04:50:43,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:50:43,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:50:43,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:50:43,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:50:43,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:50:43,065 INFO L87 Difference]: Start difference. First operand 1060 states and 1126 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 04:50:47,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:50:47,001 INFO L93 Difference]: Finished difference Result 1479 states and 1587 transitions. [2024-11-28 04:50:47,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:50:47,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-11-28 04:50:47,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:50:47,007 INFO L225 Difference]: With dead ends: 1479 [2024-11-28 04:50:47,007 INFO L226 Difference]: Without dead ends: 1479 [2024-11-28 04:50:47,008 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 04:50:47,009 INFO L435 NwaCegarLoop]: 926 mSDtfsCounter, 449 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:50:47,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 1520 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-28 04:50:47,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1479 states. [2024-11-28 04:50:47,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1479 to 1268. [2024-11-28 04:50:47,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 748 states have (on average 2.0454545454545454) internal successors, (1530), 1261 states have internal predecessors, (1530), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 04:50:47,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1548 transitions. [2024-11-28 04:50:47,061 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1548 transitions. Word has length 3 [2024-11-28 04:50:47,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:50:47,061 INFO L471 AbstractCegarLoop]: Abstraction has 1268 states and 1548 transitions. [2024-11-28 04:50:47,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 04:50:47,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1548 transitions. [2024-11-28 04:50:47,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-28 04:50:47,062 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:50:47,062 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:50:47,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:50:47,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:50:47,267 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-28 04:50:47,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:47,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1329215633, now seen corresponding path program 1 times [2024-11-28 04:50:47,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:50:47,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [998729938] [2024-11-28 04:50:47,268 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:50:47,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:50:47,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:47,271 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:50:47,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:50:47,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:50:47,485 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:50:47,488 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:50:47,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:50:47,623 INFO L349 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2024-11-28 04:50:47,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2024-11-28 04:50:47,745 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 04:50:47,745 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:50:47,745 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:50:47,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998729938] [2024-11-28 04:50:47,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998729938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:50:47,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:50:47,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:50:47,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901769846] [2024-11-28 04:50:47,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:50:47,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:50:47,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:50:47,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:50:47,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:50:47,747 INFO L87 Difference]: Start difference. First operand 1268 states and 1548 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 04:50:55,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:50:55,179 INFO L93 Difference]: Finished difference Result 2184 states and 2350 transitions. [2024-11-28 04:50:55,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:50:55,180 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2024-11-28 04:50:55,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:50:55,191 INFO L225 Difference]: With dead ends: 2184 [2024-11-28 04:50:55,191 INFO L226 Difference]: Without dead ends: 2184 [2024-11-28 04:50:55,192 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 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 04:50:55,194 INFO L435 NwaCegarLoop]: 1058 mSDtfsCounter, 1192 mSDsluCounter, 1178 mSDsCounter, 0 mSdLazyCounter, 1589 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1202 SdHoareTripleChecker+Valid, 2236 SdHoareTripleChecker+Invalid, 1600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:50:55,195 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1202 Valid, 2236 Invalid, 1600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1589 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2024-11-28 04:50:55,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2184 states. [2024-11-28 04:50:55,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2184 to 1417. [2024-11-28 04:50:55,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1417 states, 897 states have (on average 2.0256410256410255) internal successors, (1817), 1410 states have internal predecessors, (1817), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 04:50:55,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1417 states to 1417 states and 1835 transitions. [2024-11-28 04:50:55,254 INFO L78 Accepts]: Start accepts. Automaton has 1417 states and 1835 transitions. Word has length 8 [2024-11-28 04:50:55,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:50:55,255 INFO L471 AbstractCegarLoop]: Abstraction has 1417 states and 1835 transitions. [2024-11-28 04:50:55,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 04:50:55,256 INFO L276 IsEmpty]: Start isEmpty. Operand 1417 states and 1835 transitions. [2024-11-28 04:50:55,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-28 04:50:55,256 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:50:55,257 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:50:55,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 04:50:55,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:50:55,458 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-28 04:50:55,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:55,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1743988334, now seen corresponding path program 1 times [2024-11-28 04:50:55,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:50:55,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [644854097] [2024-11-28 04:50:55,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:50:55,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:50:55,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:55,464 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:50:55,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:50:55,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:50:55,693 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:50:55,696 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:50:55,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 04:50:55,732 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 04:50:55,732 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:50:55,732 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:50:55,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644854097] [2024-11-28 04:50:55,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [644854097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:50:55,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:50:55,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:50:55,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550867310] [2024-11-28 04:50:55,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:50:55,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:50:55,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:50:55,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:50:55,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:50:55,734 INFO L87 Difference]: Start difference. First operand 1417 states and 1835 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 04:50:58,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:50:58,508 INFO L93 Difference]: Finished difference Result 1952 states and 2596 transitions. [2024-11-28 04:50:58,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:50:58,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2024-11-28 04:50:58,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:50:58,518 INFO L225 Difference]: With dead ends: 1952 [2024-11-28 04:50:58,518 INFO L226 Difference]: Without dead ends: 1952 [2024-11-28 04:50:58,519 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 04:50:58,520 INFO L435 NwaCegarLoop]: 982 mSDtfsCounter, 949 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 957 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:50:58,520 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [957 Valid, 1234 Invalid, 815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-28 04:50:58,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1952 states. [2024-11-28 04:50:58,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1952 to 1368. [2024-11-28 04:50:58,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1368 states, 897 states have (on average 1.9587513935340022) internal successors, (1757), 1361 states have internal predecessors, (1757), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 04:50:58,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1368 states to 1368 states and 1775 transitions. [2024-11-28 04:50:58,564 INFO L78 Accepts]: Start accepts. Automaton has 1368 states and 1775 transitions. Word has length 9 [2024-11-28 04:50:58,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:50:58,564 INFO L471 AbstractCegarLoop]: Abstraction has 1368 states and 1775 transitions. [2024-11-28 04:50:58,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 04:50:58,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 1775 transitions. [2024-11-28 04:50:58,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-28 04:50:58,565 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:50:58,565 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:50:58,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 04:50:58,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:50:58,766 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-28 04:50:58,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:58,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1743988333, now seen corresponding path program 1 times [2024-11-28 04:50:58,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:50:58,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [479575589] [2024-11-28 04:50:58,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:50:58,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:50:58,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:58,769 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:50:58,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:50:58,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:50:58,950 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:50:58,953 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:50:58,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:50:59,011 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 04:50:59,012 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:50:59,012 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:50:59,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479575589] [2024-11-28 04:50:59,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479575589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:50:59,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:50:59,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:50:59,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53546487] [2024-11-28 04:50:59,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:50:59,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:50:59,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:50:59,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:50:59,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:50:59,014 INFO L87 Difference]: Start difference. First operand 1368 states and 1775 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 04:51:02,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:02,861 INFO L93 Difference]: Finished difference Result 2058 states and 2701 transitions. [2024-11-28 04:51:02,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:51:02,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2024-11-28 04:51:02,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:02,869 INFO L225 Difference]: With dead ends: 2058 [2024-11-28 04:51:02,870 INFO L226 Difference]: Without dead ends: 2058 [2024-11-28 04:51:02,870 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 04:51:02,871 INFO L435 NwaCegarLoop]: 1174 mSDtfsCounter, 703 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 1619 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:02,871 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 1619 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 744 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-28 04:51:02,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2058 states. [2024-11-28 04:51:02,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2058 to 1395. [2024-11-28 04:51:02,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1395 states, 934 states have (on average 1.9379014989293362) internal successors, (1810), 1388 states have internal predecessors, (1810), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 04:51:02,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1395 states to 1395 states and 1828 transitions. [2024-11-28 04:51:02,912 INFO L78 Accepts]: Start accepts. Automaton has 1395 states and 1828 transitions. Word has length 9 [2024-11-28 04:51:02,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:02,912 INFO L471 AbstractCegarLoop]: Abstraction has 1395 states and 1828 transitions. [2024-11-28 04:51:02,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 04:51:02,912 INFO L276 IsEmpty]: Start isEmpty. Operand 1395 states and 1828 transitions. [2024-11-28 04:51:02,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-28 04:51:02,913 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:02,913 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:02,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 04:51:03,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:03,114 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr519REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-28 04:51:03,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:03,116 INFO L85 PathProgramCache]: Analyzing trace with hash 2051574547, now seen corresponding path program 1 times [2024-11-28 04:51:03,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:51:03,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1562381915] [2024-11-28 04:51:03,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:03,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:03,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:03,121 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:03,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 04:51:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:03,334 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:51:03,336 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:03,457 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 04:51:03,458 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:51:03,458 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:51:03,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562381915] [2024-11-28 04:51:03,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562381915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:03,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:03,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:51:03,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481924051] [2024-11-28 04:51:03,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:03,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:51:03,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:51:03,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:51:03,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:51:03,461 INFO L87 Difference]: Start difference. First operand 1395 states and 1828 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 04:51:04,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:04,545 INFO L93 Difference]: Finished difference Result 1836 states and 2374 transitions. [2024-11-28 04:51:04,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:51:04,546 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2024-11-28 04:51:04,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:04,554 INFO L225 Difference]: With dead ends: 1836 [2024-11-28 04:51:04,554 INFO L226 Difference]: Without dead ends: 1836 [2024-11-28 04:51:04,554 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 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 04:51:04,556 INFO L435 NwaCegarLoop]: 1126 mSDtfsCounter, 453 mSDsluCounter, 1996 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 3122 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:04,557 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 3122 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:51:04,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2024-11-28 04:51:04,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 1645. [2024-11-28 04:51:04,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1645 states, 1184 states have (on average 1.9569256756756757) internal successors, (2317), 1638 states have internal predecessors, (2317), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 04:51:04,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1645 states to 1645 states and 2335 transitions. [2024-11-28 04:51:04,606 INFO L78 Accepts]: Start accepts. Automaton has 1645 states and 2335 transitions. Word has length 11 [2024-11-28 04:51:04,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:04,607 INFO L471 AbstractCegarLoop]: Abstraction has 1645 states and 2335 transitions. [2024-11-28 04:51:04,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 04:51:04,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1645 states and 2335 transitions. [2024-11-28 04:51:04,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-28 04:51:04,609 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:04,609 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:04,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 04:51:04,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:04,809 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr525ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-28 04:51:04,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:04,810 INFO L85 PathProgramCache]: Analyzing trace with hash -825693364, now seen corresponding path program 1 times [2024-11-28 04:51:04,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:51:04,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1877679296] [2024-11-28 04:51:04,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:04,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:04,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:04,819 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:04,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 04:51:05,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:05,029 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:51:05,033 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:05,043 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:51:05,044 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:51:05,045 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:51:05,055 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 04:51:05,167 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:51:05,167 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 04:51:05,190 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 04:51:05,190 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:51:05,191 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:51:05,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877679296] [2024-11-28 04:51:05,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877679296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:05,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:05,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:51:05,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251439099] [2024-11-28 04:51:05,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:05,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:51:05,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:51:05,192 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:51:05,192 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:51:05,192 INFO L87 Difference]: Start difference. First operand 1645 states and 2335 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:51:05,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:05,951 INFO L93 Difference]: Finished difference Result 2202 states and 2637 transitions. [2024-11-28 04:51:05,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:51:05,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-28 04:51:05,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:05,960 INFO L225 Difference]: With dead ends: 2202 [2024-11-28 04:51:05,961 INFO L226 Difference]: Without dead ends: 2202 [2024-11-28 04:51:05,961 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 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 04:51:05,963 INFO L435 NwaCegarLoop]: 1015 mSDtfsCounter, 965 mSDsluCounter, 2009 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 973 SdHoareTripleChecker+Valid, 3024 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:05,963 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [973 Valid, 3024 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:51:05,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2202 states. [2024-11-28 04:51:05,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2202 to 1282. [2024-11-28 04:51:05,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 821 states have (on average 1.9293544457978076) internal successors, (1584), 1275 states have internal predecessors, (1584), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 04:51:06,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 1602 transitions. [2024-11-28 04:51:06,003 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 1602 transitions. Word has length 12 [2024-11-28 04:51:06,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:06,003 INFO L471 AbstractCegarLoop]: Abstraction has 1282 states and 1602 transitions. [2024-11-28 04:51:06,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:51:06,004 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 1602 transitions. [2024-11-28 04:51:06,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-28 04:51:06,004 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:06,004 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:06,017 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 04:51:06,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:06,205 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-28 04:51:06,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:06,206 INFO L85 PathProgramCache]: Analyzing trace with hash 495195041, now seen corresponding path program 1 times [2024-11-28 04:51:06,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:51:06,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1022240820] [2024-11-28 04:51:06,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:06,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:06,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:06,208 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:06,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 04:51:06,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:06,437 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:51:06,440 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:06,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 04:51:06,542 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 04:51:06,543 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:51:06,543 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:51:06,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022240820] [2024-11-28 04:51:06,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022240820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:06,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:06,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:51:06,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374868666] [2024-11-28 04:51:06,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:06,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:51:06,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:51:06,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:51:06,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:51:06,544 INFO L87 Difference]: Start difference. First operand 1282 states and 1602 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 04:51:10,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:10,327 INFO L93 Difference]: Finished difference Result 1725 states and 2147 transitions. [2024-11-28 04:51:10,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:51:10,328 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2024-11-28 04:51:10,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:10,332 INFO L225 Difference]: With dead ends: 1725 [2024-11-28 04:51:10,332 INFO L226 Difference]: Without dead ends: 1725 [2024-11-28 04:51:10,332 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 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 04:51:10,333 INFO L435 NwaCegarLoop]: 556 mSDtfsCounter, 996 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:10,333 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1004 Valid, 1273 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1244 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-28 04:51:10,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1725 states. [2024-11-28 04:51:10,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1725 to 1259. [2024-11-28 04:51:10,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1259 states, 821 states have (on average 1.8733252131546894) internal successors, (1538), 1252 states have internal predecessors, (1538), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 04:51:10,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1259 states to 1259 states and 1556 transitions. [2024-11-28 04:51:10,365 INFO L78 Accepts]: Start accepts. Automaton has 1259 states and 1556 transitions. Word has length 19 [2024-11-28 04:51:10,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:10,367 INFO L471 AbstractCegarLoop]: Abstraction has 1259 states and 1556 transitions. [2024-11-28 04:51:10,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 04:51:10,367 INFO L276 IsEmpty]: Start isEmpty. Operand 1259 states and 1556 transitions. [2024-11-28 04:51:10,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-28 04:51:10,367 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:10,367 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:10,382 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 04:51:10,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:10,568 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-28 04:51:10,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:10,569 INFO L85 PathProgramCache]: Analyzing trace with hash 495195042, now seen corresponding path program 1 times [2024-11-28 04:51:10,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:51:10,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1145325952] [2024-11-28 04:51:10,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:10,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:10,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:10,572 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:10,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 04:51:10,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:10,796 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:51:10,799 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:10,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:51:10,964 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 04:51:10,964 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:51:10,964 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:51:10,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145325952] [2024-11-28 04:51:10,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1145325952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:10,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:10,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:51:10,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281670597] [2024-11-28 04:51:10,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:10,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:51:10,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:51:10,966 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:51:10,967 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:51:10,967 INFO L87 Difference]: Start difference. First operand 1259 states and 1556 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 04:51:16,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:16,480 INFO L93 Difference]: Finished difference Result 2001 states and 2477 transitions. [2024-11-28 04:51:16,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:51:16,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2024-11-28 04:51:16,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:16,485 INFO L225 Difference]: With dead ends: 2001 [2024-11-28 04:51:16,485 INFO L226 Difference]: Without dead ends: 2001 [2024-11-28 04:51:16,485 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 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 04:51:16,486 INFO L435 NwaCegarLoop]: 1239 mSDtfsCounter, 824 mSDsluCounter, 1264 mSDsCounter, 0 mSdLazyCounter, 1483 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 2503 SdHoareTripleChecker+Invalid, 1505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:16,486 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [824 Valid, 2503 Invalid, 1505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1483 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-28 04:51:16,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2001 states. [2024-11-28 04:51:16,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2001 to 1375. [2024-11-28 04:51:16,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1375 states, 937 states have (on average 1.7908217716115262) internal successors, (1678), 1368 states have internal predecessors, (1678), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 04:51:16,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1375 states to 1375 states and 1696 transitions. [2024-11-28 04:51:16,521 INFO L78 Accepts]: Start accepts. Automaton has 1375 states and 1696 transitions. Word has length 19 [2024-11-28 04:51:16,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:16,521 INFO L471 AbstractCegarLoop]: Abstraction has 1375 states and 1696 transitions. [2024-11-28 04:51:16,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 04:51:16,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1375 states and 1696 transitions. [2024-11-28 04:51:16,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-28 04:51:16,524 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:16,524 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 04:51:16,539 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 04:51:16,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:16,726 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-28 04:51:16,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:16,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1991006148, now seen corresponding path program 1 times [2024-11-28 04:51:16,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:51:16,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [928926412] [2024-11-28 04:51:16,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:16,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:16,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:16,730 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:16,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 04:51:17,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:17,048 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:51:17,051 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:17,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:51:17,415 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:51:17,415 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:51:18,288 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:51:18,288 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:51:18,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928926412] [2024-11-28 04:51:18,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928926412] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:51:18,289 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:51:18,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-28 04:51:18,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547000857] [2024-11-28 04:51:18,289 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:51:18,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:51:18,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:51:18,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:51:18,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:51:18,291 INFO L87 Difference]: Start difference. First operand 1375 states and 1696 transitions. Second operand has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 8 states have internal predecessors, (71), 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 04:51:33,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:33,161 INFO L93 Difference]: Finished difference Result 2363 states and 2973 transitions. [2024-11-28 04:51:33,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:51:33,162 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 8 states have internal predecessors, (71), 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 38 [2024-11-28 04:51:33,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:33,167 INFO L225 Difference]: With dead ends: 2363 [2024-11-28 04:51:33,167 INFO L226 Difference]: Without dead ends: 2363 [2024-11-28 04:51:33,167 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:51:33,168 INFO L435 NwaCegarLoop]: 1267 mSDtfsCounter, 2468 mSDsluCounter, 2948 mSDsCounter, 0 mSdLazyCounter, 3034 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2469 SdHoareTripleChecker+Valid, 4215 SdHoareTripleChecker+Invalid, 3061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 3034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:33,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2469 Valid, 4215 Invalid, 3061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 3034 Invalid, 0 Unknown, 0 Unchecked, 14.6s Time] [2024-11-28 04:51:33,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2363 states. [2024-11-28 04:51:33,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2363 to 1541. [2024-11-28 04:51:33,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1541 states, 1103 states have (on average 1.7334542157751587) internal successors, (1912), 1534 states have internal predecessors, (1912), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 04:51:33,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1541 states to 1541 states and 1930 transitions. [2024-11-28 04:51:33,204 INFO L78 Accepts]: Start accepts. Automaton has 1541 states and 1930 transitions. Word has length 38 [2024-11-28 04:51:33,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:33,204 INFO L471 AbstractCegarLoop]: Abstraction has 1541 states and 1930 transitions. [2024-11-28 04:51:33,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 8 states have internal predecessors, (71), 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 04:51:33,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1541 states and 1930 transitions. [2024-11-28 04:51:33,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-28 04:51:33,206 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:33,206 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, 1, 1, 1] [2024-11-28 04:51:33,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-28 04:51:33,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:33,407 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-28 04:51:33,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:33,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1728836185, now seen corresponding path program 1 times [2024-11-28 04:51:33,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:51:33,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [145343442] [2024-11-28 04:51:33,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:33,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:33,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:33,413 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:33,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 04:51:33,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:33,734 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:51:33,737 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:33,809 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 04:51:33,809 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:51:33,809 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:51:33,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145343442] [2024-11-28 04:51:33,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145343442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:33,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:33,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:51:33,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266216127] [2024-11-28 04:51:33,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:33,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:51:33,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:51:33,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:51:33,811 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:51:33,811 INFO L87 Difference]: Start difference. First operand 1541 states and 1930 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 04:51:33,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:33,939 INFO L93 Difference]: Finished difference Result 1226 states and 1490 transitions. [2024-11-28 04:51:33,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:51:33,940 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 54 [2024-11-28 04:51:33,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:33,944 INFO L225 Difference]: With dead ends: 1226 [2024-11-28 04:51:33,944 INFO L226 Difference]: Without dead ends: 1226 [2024-11-28 04:51:33,945 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 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 04:51:33,945 INFO L435 NwaCegarLoop]: 972 mSDtfsCounter, 56 mSDsluCounter, 1871 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 2843 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:33,945 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 2843 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:51:33,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1226 states. [2024-11-28 04:51:33,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1226 to 1224. [2024-11-28 04:51:33,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1224 states, 809 states have (on average 1.8170580964153276) internal successors, (1470), 1217 states have internal predecessors, (1470), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 04:51:33,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1224 states to 1224 states and 1488 transitions. [2024-11-28 04:51:33,965 INFO L78 Accepts]: Start accepts. Automaton has 1224 states and 1488 transitions. Word has length 54 [2024-11-28 04:51:33,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:33,966 INFO L471 AbstractCegarLoop]: Abstraction has 1224 states and 1488 transitions. [2024-11-28 04:51:33,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 04:51:33,967 INFO L276 IsEmpty]: Start isEmpty. Operand 1224 states and 1488 transitions. [2024-11-28 04:51:33,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-28 04:51:33,968 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:33,968 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:33,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 04:51:34,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:34,169 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-28 04:51:34,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:34,170 INFO L85 PathProgramCache]: Analyzing trace with hash 199933403, now seen corresponding path program 1 times [2024-11-28 04:51:34,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:51:34,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [766927875] [2024-11-28 04:51:34,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:34,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:34,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:34,173 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:34,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 04:51:34,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:34,501 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:51:34,505 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:34,520 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:51:35,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:51:35,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-28 04:51:35,385 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:51:35,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:51:35,396 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 04:51:35,397 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:51:35,398 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:51:35,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766927875] [2024-11-28 04:51:35,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766927875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:35,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:35,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:51:35,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702271871] [2024-11-28 04:51:35,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:35,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:51:35,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:51:35,399 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:51:35,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:51:35,402 INFO L87 Difference]: Start difference. First operand 1224 states and 1488 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 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 04:51:40,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:40,319 INFO L93 Difference]: Finished difference Result 1644 states and 2033 transitions. [2024-11-28 04:51:40,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:51:40,320 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 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 62 [2024-11-28 04:51:40,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:40,324 INFO L225 Difference]: With dead ends: 1644 [2024-11-28 04:51:40,324 INFO L226 Difference]: Without dead ends: 1644 [2024-11-28 04:51:40,324 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:51:40,325 INFO L435 NwaCegarLoop]: 363 mSDtfsCounter, 1300 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 1534 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1303 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 1576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:40,325 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1303 Valid, 878 Invalid, 1576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1534 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-28 04:51:40,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1644 states. [2024-11-28 04:51:40,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1644 to 1149. [2024-11-28 04:51:40,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1149 states, 772 states have (on average 1.7590673575129534) internal successors, (1358), 1142 states have internal predecessors, (1358), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 04:51:40,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1149 states to 1149 states and 1376 transitions. [2024-11-28 04:51:40,346 INFO L78 Accepts]: Start accepts. Automaton has 1149 states and 1376 transitions. Word has length 62 [2024-11-28 04:51:40,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:40,346 INFO L471 AbstractCegarLoop]: Abstraction has 1149 states and 1376 transitions. [2024-11-28 04:51:40,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 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 04:51:40,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1149 states and 1376 transitions. [2024-11-28 04:51:40,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-28 04:51:40,348 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:40,348 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:40,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-28 04:51:40,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:40,549 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-28 04:51:40,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:40,550 INFO L85 PathProgramCache]: Analyzing trace with hash -543313183, now seen corresponding path program 1 times [2024-11-28 04:51:40,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:51:40,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1098525475] [2024-11-28 04:51:40,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:40,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:40,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:40,553 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:40,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 04:51:40,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:40,892 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:51:40,896 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:40,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 04:51:40,934 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 19 treesize of output 1 [2024-11-28 04:51:40,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-28 04:51:40,987 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 04:51:40,987 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:51:40,987 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:51:40,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098525475] [2024-11-28 04:51:40,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098525475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:40,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:40,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:51:40,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811987936] [2024-11-28 04:51:40,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:40,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:51:40,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:51:40,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:51:40,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:51:40,989 INFO L87 Difference]: Start difference. First operand 1149 states and 1376 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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 04:51:44,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:44,411 INFO L93 Difference]: Finished difference Result 1148 states and 1375 transitions. [2024-11-28 04:51:44,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:51:44,411 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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 67 [2024-11-28 04:51:44,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:44,418 INFO L225 Difference]: With dead ends: 1148 [2024-11-28 04:51:44,418 INFO L226 Difference]: Without dead ends: 1148 [2024-11-28 04:51:44,418 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:51:44,419 INFO L435 NwaCegarLoop]: 945 mSDtfsCounter, 2 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 1300 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2487 SdHoareTripleChecker+Invalid, 1301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:44,419 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2487 Invalid, 1301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1300 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-28 04:51:44,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1148 states. [2024-11-28 04:51:44,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1148 to 1148. [2024-11-28 04:51:44,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1148 states, 772 states have (on average 1.7577720207253886) internal successors, (1357), 1141 states have internal predecessors, (1357), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 04:51:44,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1148 states to 1148 states and 1375 transitions. [2024-11-28 04:51:44,433 INFO L78 Accepts]: Start accepts. Automaton has 1148 states and 1375 transitions. Word has length 67 [2024-11-28 04:51:44,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:44,434 INFO L471 AbstractCegarLoop]: Abstraction has 1148 states and 1375 transitions. [2024-11-28 04:51:44,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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 04:51:44,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1148 states and 1375 transitions. [2024-11-28 04:51:44,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-28 04:51:44,435 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:44,435 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:44,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-28 04:51:44,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:44,636 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-28 04:51:44,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:44,637 INFO L85 PathProgramCache]: Analyzing trace with hash -543313182, now seen corresponding path program 1 times [2024-11-28 04:51:44,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:51:44,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1330348111] [2024-11-28 04:51:44,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:44,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:44,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:44,641 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:44,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 04:51:44,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:45,005 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:51:45,008 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:45,025 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:51:45,054 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 19 treesize of output 1 [2024-11-28 04:51:45,062 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 13 treesize of output 9 [2024-11-28 04:51:45,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-28 04:51:45,168 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 04:51:45,168 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:51:45,168 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:51:45,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330348111] [2024-11-28 04:51:45,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330348111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:45,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:45,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:51:45,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645124612] [2024-11-28 04:51:45,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:45,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:51:45,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:51:45,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:51:45,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:51:45,170 INFO L87 Difference]: Start difference. First operand 1148 states and 1375 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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 04:51:49,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:49,526 INFO L93 Difference]: Finished difference Result 1147 states and 1374 transitions. [2024-11-28 04:51:49,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:51:49,527 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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 67 [2024-11-28 04:51:49,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:49,530 INFO L225 Difference]: With dead ends: 1147 [2024-11-28 04:51:49,530 INFO L226 Difference]: Without dead ends: 1147 [2024-11-28 04:51:49,530 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:51:49,531 INFO L435 NwaCegarLoop]: 945 mSDtfsCounter, 1 mSDsluCounter, 1543 mSDsCounter, 0 mSdLazyCounter, 1296 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2488 SdHoareTripleChecker+Invalid, 1297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:49,531 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2488 Invalid, 1297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1296 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-28 04:51:49,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2024-11-28 04:51:49,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 1147. [2024-11-28 04:51:49,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1147 states, 771 states have (on average 1.7587548638132295) internal successors, (1356), 1140 states have internal predecessors, (1356), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 04:51:49,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 1374 transitions. [2024-11-28 04:51:49,547 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 1374 transitions. Word has length 67 [2024-11-28 04:51:49,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:49,547 INFO L471 AbstractCegarLoop]: Abstraction has 1147 states and 1374 transitions. [2024-11-28 04:51:49,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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 04:51:49,547 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 1374 transitions. [2024-11-28 04:51:49,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 04:51:49,548 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:49,548 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, 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 04:51:49,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-28 04:51:49,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:49,749 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-28 04:51:49,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:49,750 INFO L85 PathProgramCache]: Analyzing trace with hash -695585400, now seen corresponding path program 1 times [2024-11-28 04:51:49,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:51:49,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [777646711] [2024-11-28 04:51:49,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:49,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:49,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:49,753 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:49,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 04:51:50,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:50,088 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:51:50,092 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:50,101 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 19 treesize of output 1 [2024-11-28 04:51:50,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-28 04:51:50,227 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 04:51:50,228 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:51:50,228 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:51:50,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777646711] [2024-11-28 04:51:50,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777646711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:50,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:50,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:51:50,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225918696] [2024-11-28 04:51:50,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:50,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:51:50,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:51:50,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:51:50,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:51:50,230 INFO L87 Difference]: Start difference. First operand 1147 states and 1374 transitions. Second operand has 7 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:51:55,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:55,151 INFO L93 Difference]: Finished difference Result 1159 states and 1389 transitions. [2024-11-28 04:51:55,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:51:55,152 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2024-11-28 04:51:55,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:55,156 INFO L225 Difference]: With dead ends: 1159 [2024-11-28 04:51:55,156 INFO L226 Difference]: Without dead ends: 1159 [2024-11-28 04:51:55,157 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:51:55,157 INFO L435 NwaCegarLoop]: 930 mSDtfsCounter, 13 mSDsluCounter, 3020 mSDsCounter, 0 mSdLazyCounter, 1717 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 3950 SdHoareTripleChecker+Invalid, 1727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:55,157 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 3950 Invalid, 1727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1717 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-28 04:51:55,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2024-11-28 04:51:55,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1153. [2024-11-28 04:51:55,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1153 states, 776 states have (on average 1.7564432989690721) internal successors, (1363), 1145 states have internal predecessors, (1363), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (11), 5 states have call predecessors, (11), 8 states have call successors, (11) [2024-11-28 04:51:55,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1384 transitions. [2024-11-28 04:51:55,179 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1384 transitions. Word has length 75 [2024-11-28 04:51:55,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:55,179 INFO L471 AbstractCegarLoop]: Abstraction has 1153 states and 1384 transitions. [2024-11-28 04:51:55,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:51:55,179 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1384 transitions. [2024-11-28 04:51:55,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 04:51:55,180 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:55,180 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, 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 04:51:55,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-28 04:51:55,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:55,381 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-28 04:51:55,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:55,381 INFO L85 PathProgramCache]: Analyzing trace with hash -695585399, now seen corresponding path program 1 times [2024-11-28 04:51:55,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:51:55,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1609529092] [2024-11-28 04:51:55,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:55,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:55,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:55,384 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:55,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 04:51:55,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:55,776 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:51:55,779 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:55,808 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 04:51:55,808 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:51:55,809 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:51:55,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609529092] [2024-11-28 04:51:55,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609529092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:55,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:55,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:51:55,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357904608] [2024-11-28 04:51:55,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:55,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:51:55,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:51:55,810 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:51:55,811 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:51:55,811 INFO L87 Difference]: Start difference. First operand 1153 states and 1384 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:51:55,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:55,876 INFO L93 Difference]: Finished difference Result 1150 states and 1378 transitions. [2024-11-28 04:51:55,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:51:55,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2024-11-28 04:51:55,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:55,887 INFO L225 Difference]: With dead ends: 1150 [2024-11-28 04:51:55,888 INFO L226 Difference]: Without dead ends: 1150 [2024-11-28 04:51:55,891 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 72 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 04:51:55,892 INFO L435 NwaCegarLoop]: 945 mSDtfsCounter, 0 mSDsluCounter, 1885 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2830 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:55,893 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2830 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:51:55,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2024-11-28 04:51:55,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 1150. [2024-11-28 04:51:55,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1150 states, 773 states have (on average 1.758085381630013) internal successors, (1359), 1143 states have internal predecessors, (1359), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 04:51:55,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 1378 transitions. [2024-11-28 04:51:55,922 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 1378 transitions. Word has length 75 [2024-11-28 04:51:55,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:55,923 INFO L471 AbstractCegarLoop]: Abstraction has 1150 states and 1378 transitions. [2024-11-28 04:51:55,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:51:55,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 1378 transitions. [2024-11-28 04:51:55,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-28 04:51:55,924 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:55,924 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, 1, 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 04:51:55,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-28 04:51:56,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:56,125 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-28 04:51:56,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:56,126 INFO L85 PathProgramCache]: Analyzing trace with hash 841583450, now seen corresponding path program 1 times [2024-11-28 04:51:56,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:51:56,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1453419166] [2024-11-28 04:51:56,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:56,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:56,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:56,128 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:56,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 04:51:56,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:56,531 INFO L256 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:51:56,533 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:56,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:51:56,581 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:51:56,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:51:56,708 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:51:56,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453419166] [2024-11-28 04:51:56,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1453419166] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:51:56,709 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:51:56,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-28 04:51:56,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75563863] [2024-11-28 04:51:56,711 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:51:56,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:51:56,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:51:56,713 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:51:56,713 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:51:56,713 INFO L87 Difference]: Start difference. First operand 1150 states and 1378 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:51:56,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:56,983 INFO L93 Difference]: Finished difference Result 1162 states and 1395 transitions. [2024-11-28 04:51:56,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:51:56,984 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 76 [2024-11-28 04:51:56,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:56,989 INFO L225 Difference]: With dead ends: 1162 [2024-11-28 04:51:56,989 INFO L226 Difference]: Without dead ends: 1162 [2024-11-28 04:51:56,990 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:51:56,990 INFO L435 NwaCegarLoop]: 945 mSDtfsCounter, 5 mSDsluCounter, 3766 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4711 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:56,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 4711 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:51:56,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2024-11-28 04:51:57,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 1160. [2024-11-28 04:51:57,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1160 states, 782 states have (on average 1.7570332480818414) internal successors, (1374), 1152 states have internal predecessors, (1374), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 04:51:57,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1393 transitions. [2024-11-28 04:51:57,015 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1393 transitions. Word has length 76 [2024-11-28 04:51:57,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:57,015 INFO L471 AbstractCegarLoop]: Abstraction has 1160 states and 1393 transitions. [2024-11-28 04:51:57,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:51:57,016 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1393 transitions. [2024-11-28 04:51:57,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-28 04:51:57,017 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:57,017 INFO L218 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:51:57,034 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-28 04:51:57,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:57,218 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-28 04:51:57,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:57,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1855592968, now seen corresponding path program 2 times [2024-11-28 04:51:57,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:51:57,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [497892325] [2024-11-28 04:51:57,220 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:51:57,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:57,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:57,222 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:57,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 04:52:29,734 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:52:29,735 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:52:29,754 INFO L256 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:52:29,761 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:52:29,946 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:52:29,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:52:29,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:52:30,261 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:52:30,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:52:30,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 04:52:30,352 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 04:52:30,352 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:52:30,486 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2024-11-28 04:52:30,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2024-11-28 04:52:30,496 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1166 (Array (_ BitVec 32) (_ BitVec 32)))) (= (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_1166) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)) |c_ULTIMATE.start_main_#t~mem36#1.base|)) is different from false [2024-11-28 04:52:30,499 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:52:30,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497892325] [2024-11-28 04:52:30,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [497892325] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:52:30,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [542114695] [2024-11-28 04:52:30,499 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:52:30,499 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:52:30,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:52:30,509 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:52:30,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-11-28 04:52:32,461 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:52:32,461 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:52:32,507 INFO L256 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:52:32,510 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:52:32,759 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:52:32,759 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:52:33,162 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:52:33,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [542114695] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:52:33,163 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:52:33,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 24 [2024-11-28 04:52:33,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446804575] [2024-11-28 04:52:33,166 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:52:33,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-28 04:52:33,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:52:33,167 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-28 04:52:33,167 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=513, Unknown=1, NotChecked=46, Total=650 [2024-11-28 04:52:33,168 INFO L87 Difference]: Start difference. First operand 1160 states and 1393 transitions. Second operand has 24 states, 23 states have (on average 6.217391304347826) internal successors, (143), 23 states have internal predecessors, (143), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:52:50,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:52:50,603 INFO L93 Difference]: Finished difference Result 1634 states and 1999 transitions. [2024-11-28 04:52:50,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-28 04:52:50,604 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.217391304347826) internal successors, (143), 23 states have internal predecessors, (143), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 79 [2024-11-28 04:52:50,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:52:50,609 INFO L225 Difference]: With dead ends: 1634 [2024-11-28 04:52:50,609 INFO L226 Difference]: Without dead ends: 1630 [2024-11-28 04:52:50,610 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=413, Invalid=2242, Unknown=1, NotChecked=100, Total=2756 [2024-11-28 04:52:50,611 INFO L435 NwaCegarLoop]: 531 mSDtfsCounter, 909 mSDsluCounter, 7408 mSDsCounter, 0 mSdLazyCounter, 7081 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 7939 SdHoareTripleChecker+Invalid, 7106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 7081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:52:50,612 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [918 Valid, 7939 Invalid, 7106 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [25 Valid, 7081 Invalid, 0 Unknown, 0 Unchecked, 16.0s Time] [2024-11-28 04:52:50,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1630 states. [2024-11-28 04:52:50,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1630 to 1168. [2024-11-28 04:52:50,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1168 states, 791 states have (on average 1.7509481668773703) internal successors, (1385), 1160 states have internal predecessors, (1385), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 04:52:50,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1168 states to 1168 states and 1404 transitions. [2024-11-28 04:52:50,640 INFO L78 Accepts]: Start accepts. Automaton has 1168 states and 1404 transitions. Word has length 79 [2024-11-28 04:52:50,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:52:50,641 INFO L471 AbstractCegarLoop]: Abstraction has 1168 states and 1404 transitions. [2024-11-28 04:52:50,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.217391304347826) internal successors, (143), 23 states have internal predecessors, (143), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:52:50,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1168 states and 1404 transitions. [2024-11-28 04:52:50,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-28 04:52:50,642 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:52:50,642 INFO L218 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:52:50,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-28 04:52:50,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2024-11-28 04:52:51,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 04:52:51,044 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-28 04:52:51,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:52:51,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1362085687, now seen corresponding path program 1 times [2024-11-28 04:52:51,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:52:51,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [785381617] [2024-11-28 04:52:51,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:51,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:51,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:52:51,047 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:52:51,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-28 04:52:51,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:51,502 INFO L256 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:52:51,505 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:52:51,731 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:52:51,731 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:52:52,618 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:52:52,618 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:52:52,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785381617] [2024-11-28 04:52:52,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785381617] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:52:52,618 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:52:52,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-11-28 04:52:52,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445976464] [2024-11-28 04:52:52,620 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:52:52,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-28 04:52:52,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:52:52,621 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-28 04:52:52,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:52:52,622 INFO L87 Difference]: Start difference. First operand 1168 states and 1404 transitions. Second operand has 26 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 26 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:52:55,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:52:55,453 INFO L93 Difference]: Finished difference Result 1192 states and 1443 transitions. [2024-11-28 04:52:55,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-28 04:52:55,454 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 26 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 85 [2024-11-28 04:52:55,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:52:55,458 INFO L225 Difference]: With dead ends: 1192 [2024-11-28 04:52:55,458 INFO L226 Difference]: Without dead ends: 1186 [2024-11-28 04:52:55,459 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-11-28 04:52:55,459 INFO L435 NwaCegarLoop]: 945 mSDtfsCounter, 22 mSDsluCounter, 10364 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 11309 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:52:55,459 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 11309 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:52:55,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1186 states. [2024-11-28 04:52:55,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1186 to 1186. [2024-11-28 04:52:55,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1186 states, 809 states have (on average 1.7404202719406674) internal successors, (1408), 1178 states have internal predecessors, (1408), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 04:52:55,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1186 states to 1186 states and 1427 transitions. [2024-11-28 04:52:55,484 INFO L78 Accepts]: Start accepts. Automaton has 1186 states and 1427 transitions. Word has length 85 [2024-11-28 04:52:55,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:52:55,485 INFO L471 AbstractCegarLoop]: Abstraction has 1186 states and 1427 transitions. [2024-11-28 04:52:55,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 26 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:52:55,485 INFO L276 IsEmpty]: Start isEmpty. Operand 1186 states and 1427 transitions. [2024-11-28 04:52:55,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-28 04:52:55,486 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:52:55,486 INFO L218 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:52:55,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-28 04:52:55,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:55,687 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-28 04:52:55,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:52:55,688 INFO L85 PathProgramCache]: Analyzing trace with hash -228440503, now seen corresponding path program 2 times [2024-11-28 04:52:55,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:52:55,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1181508768] [2024-11-28 04:52:55,689 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:52:55,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:55,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:52:55,691 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:52:55,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 04:53:20,984 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:53:20,984 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:53:21,008 INFO L256 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-11-28 04:53:21,018 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:21,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:53:21,223 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:53:21,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:53:21,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:53:21,277 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 13 treesize of output 9 [2024-11-28 04:53:21,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 04:53:21,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 04:53:22,240 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:53:22,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:53:22,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:53:22,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-28 04:53:22,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 04:53:22,381 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-28 04:53:22,382 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:23,284 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:53:23,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181508768] [2024-11-28 04:53:23,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181508768] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:23,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1254695141] [2024-11-28 04:53:23,284 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:53:23,284 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:53:23,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:53:23,286 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:53:23,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2024-11-28 04:53:25,467 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:53:25,467 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:53:25,517 INFO L256 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 04:53:25,521 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:26,931 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:26,931 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:30,277 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:30,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1254695141] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:53:30,278 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:53:30,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 26, 26] total 58 [2024-11-28 04:53:30,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355472335] [2024-11-28 04:53:30,278 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:53:30,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-11-28 04:53:30,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:53:30,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-11-28 04:53:30,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=700, Invalid=2953, Unknown=7, NotChecked=0, Total=3660 [2024-11-28 04:53:30,282 INFO L87 Difference]: Start difference. First operand 1186 states and 1427 transitions. Second operand has 58 states, 57 states have (on average 3.1403508771929824) internal successors, (179), 58 states have internal predecessors, (179), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:54:23,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:23,081 INFO L93 Difference]: Finished difference Result 1687 states and 2083 transitions. [2024-11-28 04:54:23,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2024-11-28 04:54:23,082 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 57 states have (on average 3.1403508771929824) internal successors, (179), 58 states have internal predecessors, (179), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 97 [2024-11-28 04:54:23,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:23,086 INFO L225 Difference]: With dead ends: 1687 [2024-11-28 04:54:23,086 INFO L226 Difference]: Without dead ends: 1679 [2024-11-28 04:54:23,091 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 235 SyntacticMatches, 1 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3141 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=3108, Invalid=15244, Unknown=8, NotChecked=0, Total=18360 [2024-11-28 04:54:23,092 INFO L435 NwaCegarLoop]: 538 mSDtfsCounter, 932 mSDsluCounter, 15450 mSDsCounter, 0 mSdLazyCounter, 16342 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 940 SdHoareTripleChecker+Valid, 15988 SdHoareTripleChecker+Invalid, 16414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 16342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:23,093 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [940 Valid, 15988 Invalid, 16414 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [72 Valid, 16342 Invalid, 0 Unknown, 0 Unchecked, 41.0s Time] [2024-11-28 04:54:23,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states. [2024-11-28 04:54:23,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 1219. [2024-11-28 04:54:23,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1219 states, 843 states have (on average 1.7188612099644127) internal successors, (1449), 1211 states have internal predecessors, (1449), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 04:54:23,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1219 states to 1219 states and 1468 transitions. [2024-11-28 04:54:23,119 INFO L78 Accepts]: Start accepts. Automaton has 1219 states and 1468 transitions. Word has length 97 [2024-11-28 04:54:23,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:23,119 INFO L471 AbstractCegarLoop]: Abstraction has 1219 states and 1468 transitions. [2024-11-28 04:54:23,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 57 states have (on average 3.1403508771929824) internal successors, (179), 58 states have internal predecessors, (179), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:54:23,120 INFO L276 IsEmpty]: Start isEmpty. Operand 1219 states and 1468 transitions. [2024-11-28 04:54:23,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-28 04:54:23,121 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:23,121 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:54:23,137 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2024-11-28 04:54:23,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-28 04:54:23,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:23,522 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr84REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-28 04:54:23,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:23,523 INFO L85 PathProgramCache]: Analyzing trace with hash -642912126, now seen corresponding path program 1 times [2024-11-28 04:54:23,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:54:23,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1191019123] [2024-11-28 04:54:23,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:23,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:23,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:23,527 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:23,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-28 04:54:24,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:24,327 INFO L256 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-11-28 04:54:24,337 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:24,488 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:54:24,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:54:24,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:54:24,986 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:54:24,986 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-28 04:54:25,064 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:54:25,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:54:25,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 04:54:25,152 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:54:25,152 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:54:25,222 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2024-11-28 04:54:25,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2024-11-28 04:54:25,318 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2453 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_2453) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse0)))) is different from false [2024-11-28 04:54:25,845 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2453 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2499 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_2499)) (.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (store .cse1 .cse0 v_ArrVal_2453) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))) is different from false [2024-11-28 04:54:25,847 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:54:25,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191019123] [2024-11-28 04:54:25,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191019123] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:25,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [660667259] [2024-11-28 04:54:25,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:25,848 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:54:25,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:54:25,850 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:54:25,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2024-11-28 04:54:30,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:30,187 INFO L256 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-11-28 04:54:30,198 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:30,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 04:54:30,392 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-28 04:54:30,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-28 04:54:30,482 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:54:30,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-11-28 04:54:32,179 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:54:32,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:54:32,365 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:54:32,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:54:32,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 04:54:32,500 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:54:32,501 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:54:32,530 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2923 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_2923) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) is different from false [2024-11-28 04:54:32,541 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2923 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_2923) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-28 04:54:33,116 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2969 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2923 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_2969))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2923)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:54:33,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [660667259] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:33,119 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:54:33,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 18 [2024-11-28 04:54:33,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037050911] [2024-11-28 04:54:33,119 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:54:33,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:54:33,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:54:33,120 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:54:33,120 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=348, Unknown=13, NotChecked=210, Total=650 [2024-11-28 04:54:33,121 INFO L87 Difference]: Start difference. First operand 1219 states and 1468 transitions. Second operand has 19 states, 16 states have (on average 7.875) internal successors, (126), 19 states have internal predecessors, (126), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:54:41,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:41,301 INFO L93 Difference]: Finished difference Result 1678 states and 2052 transitions. [2024-11-28 04:54:41,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:54:41,302 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 7.875) internal successors, (126), 19 states have internal predecessors, (126), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 122 [2024-11-28 04:54:41,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:41,305 INFO L225 Difference]: With dead ends: 1678 [2024-11-28 04:54:41,305 INFO L226 Difference]: Without dead ends: 1678 [2024-11-28 04:54:41,305 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 231 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=92, Invalid=421, Unknown=13, NotChecked=230, Total=756 [2024-11-28 04:54:41,306 INFO L435 NwaCegarLoop]: 532 mSDtfsCounter, 860 mSDsluCounter, 3769 mSDsCounter, 0 mSdLazyCounter, 3789 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 4301 SdHoareTripleChecker+Invalid, 3803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 3789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:41,306 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [868 Valid, 4301 Invalid, 3803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 3789 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2024-11-28 04:54:41,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1678 states. [2024-11-28 04:54:41,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1678 to 1218. [2024-11-28 04:54:41,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1218 states, 843 states have (on average 1.7176749703440095) internal successors, (1448), 1210 states have internal predecessors, (1448), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 04:54:41,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1218 states to 1218 states and 1467 transitions. [2024-11-28 04:54:41,327 INFO L78 Accepts]: Start accepts. Automaton has 1218 states and 1467 transitions. Word has length 122 [2024-11-28 04:54:41,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:41,328 INFO L471 AbstractCegarLoop]: Abstraction has 1218 states and 1467 transitions. [2024-11-28 04:54:41,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 7.875) internal successors, (126), 19 states have internal predecessors, (126), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:54:41,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1218 states and 1467 transitions. [2024-11-28 04:54:41,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-28 04:54:41,329 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:41,329 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:54:41,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2024-11-28 04:54:41,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-28 04:54:41,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:41,730 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr85REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-28 04:54:41,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:41,731 INFO L85 PathProgramCache]: Analyzing trace with hash -642912125, now seen corresponding path program 1 times [2024-11-28 04:54:41,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:54:41,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1462902472] [2024-11-28 04:54:41,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:41,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:41,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:41,735 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:41,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-28 04:54:42,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:42,313 INFO L256 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 112 conjuncts are in the unsatisfiable core [2024-11-28 04:54:42,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:42,492 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:54:42,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:54:42,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:54:42,539 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 13 treesize of output 9 [2024-11-28 04:54:42,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:54:42,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 04:54:42,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 04:54:43,770 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:54:43,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:54:43,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:54:43,909 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:54:43,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:54:43,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:54:43,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-28 04:54:43,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 04:54:43,990 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:54:43,990 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:54:44,335 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_3438 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_3438) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd .cse0 (_ bv4 32)) (bvadd .cse0 (_ bv8 32))))) (forall ((v_ArrVal_3439 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3438 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_3438) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv8 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_3439) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-28 04:54:46,026 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_3439 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3438 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3530 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3531 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3531))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3530) .cse0 v_ArrVal_3438) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_3439) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_3438 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3530 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3531 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3530) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3531) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3438) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv4 32) .cse3) (bvadd (_ bv8 32) .cse3)))))) is different from false [2024-11-28 04:54:46,034 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:54:46,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462902472] [2024-11-28 04:54:46,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1462902472] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:46,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [809004232] [2024-11-28 04:54:46,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:46,035 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:54:46,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:54:46,037 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:54:46,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2024-11-28 04:54:49,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:49,974 INFO L256 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 114 conjuncts are in the unsatisfiable core [2024-11-28 04:54:49,990 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:49,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 04:54:50,144 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:54:50,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:54:50,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:54:50,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:54:50,184 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 13 treesize of output 9 [2024-11-28 04:54:50,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 04:54:50,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 04:54:51,262 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:54:51,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:54:51,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:54:51,366 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:54:51,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:54:51,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:54:51,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-28 04:54:51,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 04:54:51,444 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:54:51,445 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:54:51,529 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_4003 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4002 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_4002) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_4003) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_4002 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_4002) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv4 32) .cse1) (bvadd (_ bv8 32) .cse1)))))) is different from false [2024-11-28 04:54:51,572 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_4003 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4002 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_4002) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_4003) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_4002 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_4002) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv4 32) .cse2) (bvadd (_ bv8 32) .cse2))))))) is different from false [2024-11-28 04:54:53,390 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_4094 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4095 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4002 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4094) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4095) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4002) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv4 32) .cse0) (bvadd (_ bv8 32) .cse0)))) (forall ((v_ArrVal_4094 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4095 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4003 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4002 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4095))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4094) .cse2 v_ArrVal_4002) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_4003) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) is different from false [2024-11-28 04:54:53,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [809004232] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:53,398 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:54:53,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 10 [2024-11-28 04:54:53,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732947938] [2024-11-28 04:54:53,398 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:54:53,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:54:53,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:54:53,399 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:54:53,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=146, Unknown=13, NotChecked=140, Total=342 [2024-11-28 04:54:53,400 INFO L87 Difference]: Start difference. First operand 1218 states and 1467 transitions. Second operand has 11 states, 9 states have (on average 12.0) internal successors, (108), 11 states have internal predecessors, (108), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:55:03,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:55:03,555 INFO L93 Difference]: Finished difference Result 1675 states and 2049 transitions. [2024-11-28 04:55:03,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:55:03,556 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 12.0) internal successors, (108), 11 states have internal predecessors, (108), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2024-11-28 04:55:03,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:55:03,561 INFO L225 Difference]: With dead ends: 1675 [2024-11-28 04:55:03,561 INFO L226 Difference]: Without dead ends: 1675 [2024-11-28 04:55:03,561 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 236 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=79, Invalid=305, Unknown=16, NotChecked=200, Total=600 [2024-11-28 04:55:03,563 INFO L435 NwaCegarLoop]: 538 mSDtfsCounter, 856 mSDsluCounter, 2079 mSDsCounter, 0 mSdLazyCounter, 3533 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 2617 SdHoareTripleChecker+Invalid, 3540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 3533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:55:03,564 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [863 Valid, 2617 Invalid, 3540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 3533 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2024-11-28 04:55:03,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2024-11-28 04:55:03,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 1217. [2024-11-28 04:55:03,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1217 states, 843 states have (on average 1.716488730723606) internal successors, (1447), 1209 states have internal predecessors, (1447), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 04:55:03,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1217 states to 1217 states and 1466 transitions. [2024-11-28 04:55:03,588 INFO L78 Accepts]: Start accepts. Automaton has 1217 states and 1466 transitions. Word has length 122 [2024-11-28 04:55:03,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:55:03,588 INFO L471 AbstractCegarLoop]: Abstraction has 1217 states and 1466 transitions. [2024-11-28 04:55:03,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 12.0) internal successors, (108), 11 states have internal predecessors, (108), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:55:03,589 INFO L276 IsEmpty]: Start isEmpty. Operand 1217 states and 1466 transitions. [2024-11-28 04:55:03,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-28 04:55:03,590 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:55:03,590 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:55:03,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2024-11-28 04:55:03,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-28 04:55:03,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:55:03,991 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr88REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-28 04:55:03,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:55:03,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1735641105, now seen corresponding path program 1 times [2024-11-28 04:55:03,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:55:03,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [31263337] [2024-11-28 04:55:03,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:55:03,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:55:03,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:55:03,994 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:55:03,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-28 04:55:04,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:55:04,781 INFO L256 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-11-28 04:55:04,790 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:55:04,975 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:55:04,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:55:04,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:55:05,448 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:55:05,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-28 04:55:05,555 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:55:05,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:55:05,696 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:55:05,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:55:05,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 04:55:05,749 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:55:05,749 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:55:05,804 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4533 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_4533) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) is different from false [2024-11-28 04:55:05,815 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4533 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_4533) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (_ bv1 1)))) is different from false [2024-11-28 04:55:05,845 INFO L349 Elim1Store]: treesize reduction 7, result has 77.4 percent of original size [2024-11-28 04:55:05,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2024-11-28 04:55:05,858 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4533 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4532 (Array (_ BitVec 32) (_ BitVec 32)))) (= (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_4532))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4533)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) |c_ULTIMATE.start_main_#t~mem38#1.base|)) is different from false [2024-11-28 04:55:05,874 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4533 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4532 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse2 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| .cse2 v_ArrVal_4532))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4533)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse2)))) is different from false [2024-11-28 04:55:06,456 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4579 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4533 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4532 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4579)) (.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (let ((.cse1 (store .cse3 .cse0 v_ArrVal_4532))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_4533)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))) is different from false [2024-11-28 04:55:06,459 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:55:06,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31263337] [2024-11-28 04:55:06,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31263337] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:55:06,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [99163603] [2024-11-28 04:55:06,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:55:06,459 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:55:06,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:55:06,461 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:55:06,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2024-11-28 04:55:20,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:55:20,588 INFO L256 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-11-28 04:55:20,598 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:55:20,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 04:55:20,778 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-28 04:55:20,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-28 04:55:20,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:55:21,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-11-28 04:55:22,214 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:55:22,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:55:22,414 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:55:22,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:55:22,544 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:55:22,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:55:22,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 04:55:22,655 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:55:22,655 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:55:22,675 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5019 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_5019) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) is different from false [2024-11-28 04:55:22,685 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5019 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_5019) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-28 04:55:22,702 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5018 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5019 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_5018))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5019)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:55:22,715 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5018 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5019 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5018))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5019)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2024-11-28 04:55:23,246 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5018 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5019 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5065 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5065))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5018)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5019)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:55:23,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [99163603] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:55:23,250 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:55:23,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 20 [2024-11-28 04:55:23,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71637441] [2024-11-28 04:55:23,251 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:55:23,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 04:55:23,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:55:23,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 04:55:23,252 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=394, Unknown=10, NotChecked=490, Total=992 [2024-11-28 04:55:23,252 INFO L87 Difference]: Start difference. First operand 1217 states and 1466 transitions. Second operand has 21 states, 18 states have (on average 7.333333333333333) internal successors, (132), 21 states have internal predecessors, (132), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:55:38,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:55:38,276 INFO L93 Difference]: Finished difference Result 1676 states and 2050 transitions. [2024-11-28 04:55:38,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:55:38,276 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 7.333333333333333) internal successors, (132), 21 states have internal predecessors, (132), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 125 [2024-11-28 04:55:38,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:55:38,280 INFO L225 Difference]: With dead ends: 1676 [2024-11-28 04:55:38,280 INFO L226 Difference]: Without dead ends: 1676 [2024-11-28 04:55:38,281 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 237 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=111, Invalid=471, Unknown=10, NotChecked=530, Total=1122 [2024-11-28 04:55:38,281 INFO L435 NwaCegarLoop]: 531 mSDtfsCounter, 853 mSDsluCounter, 6219 mSDsCounter, 0 mSdLazyCounter, 6064 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 861 SdHoareTripleChecker+Valid, 6750 SdHoareTripleChecker+Invalid, 6078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 6064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:55:38,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [861 Valid, 6750 Invalid, 6078 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 6064 Invalid, 0 Unknown, 0 Unchecked, 14.8s Time] [2024-11-28 04:55:38,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1676 states. [2024-11-28 04:55:38,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1676 to 1216. [2024-11-28 04:55:38,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1216 states, 843 states have (on average 1.7153024911032029) internal successors, (1446), 1208 states have internal predecessors, (1446), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 04:55:38,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1216 states to 1216 states and 1465 transitions. [2024-11-28 04:55:38,301 INFO L78 Accepts]: Start accepts. Automaton has 1216 states and 1465 transitions. Word has length 125 [2024-11-28 04:55:38,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:55:38,301 INFO L471 AbstractCegarLoop]: Abstraction has 1216 states and 1465 transitions. [2024-11-28 04:55:38,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 7.333333333333333) internal successors, (132), 21 states have internal predecessors, (132), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:55:38,302 INFO L276 IsEmpty]: Start isEmpty. Operand 1216 states and 1465 transitions. [2024-11-28 04:55:38,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-28 04:55:38,303 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:55:38,303 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:55:38,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2024-11-28 04:55:38,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-28 04:55:38,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:55:38,704 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr89REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-28 04:55:38,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:55:38,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1735641104, now seen corresponding path program 1 times [2024-11-28 04:55:38,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:55:38,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [690313170] [2024-11-28 04:55:38,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:55:38,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:55:38,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:55:38,707 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:55:38,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-28 04:55:39,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:55:39,571 INFO L256 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 115 conjuncts are in the unsatisfiable core [2024-11-28 04:55:39,584 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:55:39,725 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:55:39,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:55:39,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:55:39,769 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:55:39,775 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 13 treesize of output 9 [2024-11-28 04:55:39,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 04:55:39,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 04:55:40,893 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:55:40,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:55:40,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:55:41,060 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:55:41,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:55:41,070 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:55:41,190 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:55:41,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:55:41,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:55:41,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-28 04:55:41,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 04:55:41,281 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:55:41,281 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:55:41,457 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5551 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5552 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_5552) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) (_ bv12 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_5551) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_5552 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_5552) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd .cse1 (_ bv8 32)) (bvadd .cse1 (_ bv12 32))))))) is different from false [2024-11-28 04:55:41,502 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_5552 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_5552) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd .cse0 (_ bv8 32)) (bvadd .cse0 (_ bv12 32))))) (forall ((v_ArrVal_5551 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5552 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_5552) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv12 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_5551) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-28 04:55:41,611 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5549 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5550 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5552 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_5550) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_5549) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5552) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse0 (_ bv8 32)) (bvadd .cse0 (_ bv12 32))))) (forall ((v_ArrVal_5549 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5550 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5551 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5552 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_5549))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_5550) .cse2 v_ArrVal_5552) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv12 32)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_5551) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) is different from false [2024-11-28 04:55:41,713 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_5549 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5550 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5551 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5552 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_5549))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_5550) .cse1 v_ArrVal_5552) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv12 32)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_5551) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (forall ((v_ArrVal_5549 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5550 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5552 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_5550) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_5549) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_5552) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd .cse4 (_ bv8 32)) (bvadd .cse4 (_ bv12 32)))))))) is different from false [2024-11-28 04:55:43,737 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5549 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5643 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5644 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5550 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5551 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5552 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5643))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse3 (store .cse4 .cse0 v_ArrVal_5549))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5644) .cse0 v_ArrVal_5550) .cse1 v_ArrVal_5552) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv12 32)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_5551) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))) (forall ((v_ArrVal_5549 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5643 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5644 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5550 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5552 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (select (select (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5643))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5644) .cse6 v_ArrVal_5550) (select (select (store .cse7 .cse6 v_ArrVal_5549) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_5552))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd .cse5 (_ bv8 32)) (bvadd .cse5 (_ bv12 32))))))) is different from false [2024-11-28 04:55:43,751 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:55:43,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690313170] [2024-11-28 04:55:43,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690313170] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:55:43,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1371816107] [2024-11-28 04:55:43,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:55:43,752 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:55:43,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:55:43,753 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:55:43,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2024-11-28 04:55:57,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:55:58,067 INFO L256 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 118 conjuncts are in the unsatisfiable core [2024-11-28 04:55:58,081 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:55:58,088 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 04:55:58,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:55:58,435 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:55:58,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:55:58,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:55:58,468 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 13 treesize of output 9 [2024-11-28 04:55:58,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 04:55:58,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 04:56:00,114 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:56:00,114 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:56:00,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:56:00,272 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:56:00,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:56:00,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:56:00,400 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:56:00,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:56:00,415 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:56:00,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-28 04:56:00,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 04:56:00,505 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:56:00,505 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:00,592 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6132 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6133 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_6133) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) (_ bv12 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_6132) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_6133 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_6133) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd .cse1 (_ bv8 32)) (bvadd .cse1 (_ bv12 32))))))) is different from false [2024-11-28 04:56:00,630 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_6133 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_6133) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_6132 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6133 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_6133) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_6132) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-28 04:56:00,744 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6130 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6131 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6133 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_6131) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_6130) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6133) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_6130 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6131 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6132 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6133 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_6130))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_6131) .cse2 v_ArrVal_6133) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_6132) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) is different from false [2024-11-28 04:56:03,763 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6130 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6131 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6224 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6225 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6132 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6133 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6224))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse3 (store .cse4 .cse0 v_ArrVal_6130))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv12 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6225) .cse0 v_ArrVal_6131) .cse1 v_ArrVal_6133) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_6132) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))) (forall ((v_ArrVal_6130 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6131 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6224 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6225 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6133 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (select (select (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6224))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6225) .cse6 v_ArrVal_6131) (select (select (store .cse7 .cse6 v_ArrVal_6130) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6133))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse5) (bvadd (_ bv12 32) .cse5)))))) is different from false [2024-11-28 04:56:03,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1371816107] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:03,777 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:56:03,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 11 [2024-11-28 04:56:03,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074095549] [2024-11-28 04:56:03,777 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:03,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:56:03,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:56:03,778 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:56:03,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=174, Unknown=14, NotChecked=306, Total=552 [2024-11-28 04:56:03,778 INFO L87 Difference]: Start difference. First operand 1216 states and 1465 transitions. Second operand has 12 states, 10 states have (on average 11.1) internal successors, (111), 12 states have internal predecessors, (111), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:56:26,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:26,012 INFO L93 Difference]: Finished difference Result 1673 states and 2047 transitions. [2024-11-28 04:56:26,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:56:26,013 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 11.1) internal successors, (111), 12 states have internal predecessors, (111), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2024-11-28 04:56:26,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:26,015 INFO L225 Difference]: With dead ends: 1673 [2024-11-28 04:56:26,016 INFO L226 Difference]: Without dead ends: 1673 [2024-11-28 04:56:26,016 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 243 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=105, Invalid=378, Unknown=15, NotChecked=432, Total=930 [2024-11-28 04:56:26,016 INFO L435 NwaCegarLoop]: 537 mSDtfsCounter, 854 mSDsluCounter, 2745 mSDsCounter, 0 mSdLazyCounter, 4760 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 861 SdHoareTripleChecker+Valid, 3282 SdHoareTripleChecker+Invalid, 4767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 4760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:26,017 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [861 Valid, 3282 Invalid, 4767 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 4760 Invalid, 0 Unknown, 0 Unchecked, 21.5s Time] [2024-11-28 04:56:26,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1673 states. [2024-11-28 04:56:26,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1673 to 1215. [2024-11-28 04:56:26,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1215 states, 843 states have (on average 1.7141162514827994) internal successors, (1445), 1207 states have internal predecessors, (1445), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 04:56:26,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1215 states to 1215 states and 1464 transitions. [2024-11-28 04:56:26,035 INFO L78 Accepts]: Start accepts. Automaton has 1215 states and 1464 transitions. Word has length 125 [2024-11-28 04:56:26,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:26,036 INFO L471 AbstractCegarLoop]: Abstraction has 1215 states and 1464 transitions. [2024-11-28 04:56:26,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 11.1) internal successors, (111), 12 states have internal predecessors, (111), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:56:26,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1215 states and 1464 transitions. [2024-11-28 04:56:26,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-28 04:56:26,038 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:26,038 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:56:26,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-28 04:56:26,264 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2024-11-28 04:56:26,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 04:56:26,439 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr92REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-28 04:56:26,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:26,440 INFO L85 PathProgramCache]: Analyzing trace with hash 627456137, now seen corresponding path program 1 times [2024-11-28 04:56:26,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:56:26,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1141382438] [2024-11-28 04:56:26,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:26,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:26,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:26,442 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:26,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-28 04:56:27,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:27,283 INFO L256 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-11-28 04:56:27,292 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:27,650 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:56:27,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:56:27,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:56:28,506 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:56:28,506 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-28 04:56:28,650 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:56:28,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-28 04:56:28,804 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:56:28,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-28 04:56:28,973 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:56:28,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:56:29,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 04:56:29,181 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:56:29,181 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:29,300 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2024-11-28 04:56:29,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2024-11-28 04:56:29,320 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6679 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_#t~mem40#1.base| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_6679) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) is different from false [2024-11-28 04:56:29,345 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6679 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= .cse0 (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_6679) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))) is different from false [2024-11-28 04:56:29,384 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6679 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6678 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_6678)) (.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= (select (select (store .cse0 .cse1 v_ArrVal_6679) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) .cse1)))) is different from false [2024-11-28 04:56:29,407 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6679 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6678 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6678))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (store .cse1 .cse0 v_ArrVal_6679) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) is different from false [2024-11-28 04:56:29,445 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6679 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6677 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6678 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_6677))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6678)))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= (select (select (store .cse0 .cse1 v_ArrVal_6679) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) .cse1))))) is different from false [2024-11-28 04:56:29,472 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6679 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6677 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6678 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6677))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6678)))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= (select (select (store .cse0 .cse1 v_ArrVal_6679) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) .cse1))))) is different from false [2024-11-28 04:56:30,208 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6679 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6725 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6677 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6678 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (let ((.cse3 (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6725))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6677)))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6678)))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (store .cse1 .cse0 v_ArrVal_6679) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) is different from false [2024-11-28 04:56:30,214 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:56:30,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141382438] [2024-11-28 04:56:30,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141382438] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:30,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1384049214] [2024-11-28 04:56:30,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:30,214 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:56:30,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:56:30,216 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:56:30,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2024-11-28 04:56:48,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:48,595 INFO L256 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-11-28 04:56:48,604 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:48,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 04:56:49,154 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-28 04:56:49,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-28 04:56:49,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:56:49,656 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-11-28 04:56:51,889 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:56:51,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:56:52,240 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:56:52,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:56:52,500 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:56:52,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:56:52,762 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:56:52,762 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:56:52,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 04:56:52,965 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:56:52,965 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:53,222 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7181 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_7181) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-28 04:56:53,262 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7180 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7181 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_7180))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7181)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:56:53,282 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7180 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7181 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7180))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7181)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:56:53,314 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7180 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7181 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7179 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_7179))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7180)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7181)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:56:53,337 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7180 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7181 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7179 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7179))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7180)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7181)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:56:54,063 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7180 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7181 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7227 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7179 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7227))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7179)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7180)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7181)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:56:54,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1384049214] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:54,072 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:56:54,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2024-11-28 04:56:54,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632471356] [2024-11-28 04:56:54,072 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:54,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 04:56:54,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:56:54,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 04:56:54,074 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=509, Unknown=27, NotChecked=754, Total=1406 [2024-11-28 04:56:54,074 INFO L87 Difference]: Start difference. First operand 1215 states and 1464 transitions. Second operand has 23 states, 20 states have (on average 6.9) internal successors, (138), 23 states have internal predecessors, (138), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:57:13,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:57:13,774 INFO L93 Difference]: Finished difference Result 1674 states and 2048 transitions. [2024-11-28 04:57:13,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:57:13,775 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 6.9) internal successors, (138), 23 states have internal predecessors, (138), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 128 [2024-11-28 04:57:13,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:57:13,779 INFO L225 Difference]: With dead ends: 1674 [2024-11-28 04:57:13,779 INFO L226 Difference]: Without dead ends: 1674 [2024-11-28 04:57:13,779 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 243 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 13 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=129, Invalid=596, Unknown=29, NotChecked=806, Total=1560 [2024-11-28 04:57:13,780 INFO L435 NwaCegarLoop]: 530 mSDtfsCounter, 854 mSDsluCounter, 4756 mSDsCounter, 0 mSdLazyCounter, 4694 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 5286 SdHoareTripleChecker+Invalid, 4719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 4694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:57:13,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [862 Valid, 5286 Invalid, 4719 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [25 Valid, 4694 Invalid, 0 Unknown, 0 Unchecked, 19.4s Time] [2024-11-28 04:57:13,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2024-11-28 04:57:13,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 1214. [2024-11-28 04:57:13,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1214 states, 843 states have (on average 1.7129300118623962) internal successors, (1444), 1206 states have internal predecessors, (1444), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 04:57:13,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1214 states to 1214 states and 1463 transitions. [2024-11-28 04:57:13,812 INFO L78 Accepts]: Start accepts. Automaton has 1214 states and 1463 transitions. Word has length 128 [2024-11-28 04:57:13,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:57:13,812 INFO L471 AbstractCegarLoop]: Abstraction has 1214 states and 1463 transitions. [2024-11-28 04:57:13,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 6.9) internal successors, (138), 23 states have internal predecessors, (138), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:57:13,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1214 states and 1463 transitions. [2024-11-28 04:57:13,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-28 04:57:13,814 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:57:13,814 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:57:13,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-28 04:57:14,054 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (33)] Ended with exit code 0 [2024-11-28 04:57:14,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 04:57:14,215 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr93REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-28 04:57:14,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:57:14,216 INFO L85 PathProgramCache]: Analyzing trace with hash 627456138, now seen corresponding path program 1 times [2024-11-28 04:57:14,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:57:14,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1974726072] [2024-11-28 04:57:14,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:57:14,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:57:14,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:57:14,218 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:57:14,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-28 04:57:15,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:57:15,150 INFO L256 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 118 conjuncts are in the unsatisfiable core [2024-11-28 04:57:15,165 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:57:15,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:57:15,528 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:57:15,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:57:15,596 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 13 treesize of output 9 [2024-11-28 04:57:15,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:57:15,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 04:57:15,888 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 04:57:17,538 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:57:17,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:57:17,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:57:17,799 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:57:17,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:57:17,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:57:18,034 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:57:18,034 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:57:18,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:57:18,271 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:57:18,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:57:18,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:57:18,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-28 04:57:18,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 04:57:18,434 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:57:18,434 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:57:18,749 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7731 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7730 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv24 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_7730) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_7731) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_7730 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_7730) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv20 32) .cse1) (bvadd (_ bv24 32) .cse1)))))) is different from false [2024-11-28 04:57:18,789 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_7731 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7730 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv24 32) (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_7730) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_7731) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_7730 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_7730) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv20 32) .cse2) (bvadd (_ bv24 32) .cse2))))))) is different from false [2024-11-28 04:57:19,376 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_7729 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7728 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7730 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_7728) (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_7729) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_7730) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_7729 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7728 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7731 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7730 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_7729))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv24 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_7728) .cse3 v_ArrVal_7730) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse4 .cse3 v_ArrVal_7731) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))))) is different from false [2024-11-28 04:57:23,198 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (and (forall ((v_ArrVal_7729 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7728 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7727 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7726 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7730 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_7727))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_7726) .cse2 v_ArrVal_7728) (select (select (store .cse3 .cse2 v_ArrVal_7729) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_7730))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_7729 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7728 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7727 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7726 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7731 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7730 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse8 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_7727))) (let ((.cse5 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse7 (store .cse8 .cse5 v_ArrVal_7729))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_7726) .cse5 v_ArrVal_7728) .cse6 v_ArrVal_7730) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (select |c_#length| (select (select (store .cse7 .cse6 v_ArrVal_7731) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))))))))))) is different from false [2024-11-28 04:57:29,776 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7729 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7728 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7727 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7726 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7823 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7822 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7730 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse5 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7822))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse3 (store .cse5 .cse1 v_ArrVal_7727))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7823) .cse1 v_ArrVal_7726) .cse2 v_ArrVal_7728) (select (select (store .cse3 .cse2 v_ArrVal_7729) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_7730))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_7729 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7728 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7727 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7726 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7823 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7822 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7731 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7730 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse11 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7822))) (let ((.cse6 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse10 (store .cse11 .cse6 v_ArrVal_7727))) (let ((.cse7 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse9 (store .cse10 .cse7 v_ArrVal_7729))) (let ((.cse8 (select (select .cse9 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7823) .cse6 v_ArrVal_7726) .cse7 v_ArrVal_7728) .cse8 v_ArrVal_7730) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (select |c_#length| (select (select (store .cse9 .cse8 v_ArrVal_7731) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)))))))))))) is different from false [2024-11-28 04:57:29,820 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:57:29,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974726072] [2024-11-28 04:57:29,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974726072] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:57:29,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [434600043] [2024-11-28 04:57:29,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:57:29,821 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:57:29,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:57:29,823 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:57:29,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2024-11-28 04:57:49,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:57:49,900 INFO L256 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 120 conjuncts are in the unsatisfiable core [2024-11-28 04:57:49,914 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:57:49,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 04:57:52,547 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:57:52,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:57:52,628 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:57:52,754 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 13 treesize of output 9 [2024-11-28 04:57:52,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:57:53,552 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 04:57:53,595 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 04:58:02,061 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:58:02,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:58:02,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:58:03,055 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:58:03,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:58:03,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:58:03,799 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:58:03,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:58:03,887 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:58:04,564 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:58:04,564 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:58:04,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:58:04,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-28 04:58:04,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 04:58:05,042 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:58:05,042 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:58:05,471 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8327 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_8327) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse0 (_ bv20 32)) (bvadd .cse0 (_ bv24 32))))) (forall ((v_ArrVal_8328 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8327 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_8327) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv24 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_8328) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:58:05,629 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_8327 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_8327) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd .cse0 (_ bv20 32)) (bvadd .cse0 (_ bv24 32))))) (forall ((v_ArrVal_8328 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8327 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_8327) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv24 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_8328) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-28 04:58:05,910 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8327 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8326 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8325 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_8326) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_8325) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8327) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_8328 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8327 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8326 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8325 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_8325))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv24 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_8326) .cse2 v_ArrVal_8327) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_8328) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) is different from false [2024-11-28 04:58:06,083 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_8328 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8327 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8326 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8325 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_8325))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv24 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_8326) .cse1 v_ArrVal_8327) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_8328) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (forall ((v_ArrVal_8327 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8326 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8325 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_8326) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_8325) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_8327) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv20 32) .cse4) (bvadd (_ bv24 32) .cse4))))))) is different from false [2024-11-28 04:58:07,031 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8327 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8326 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8325 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8324 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8323 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_8324))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_8323) .cse1 v_ArrVal_8326) (select (select (store .cse2 .cse1 v_ArrVal_8325) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_8327))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_8328 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8327 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8326 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8325 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8324 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8323 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_8324))) (let ((.cse4 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse6 (store .cse7 .cse4 v_ArrVal_8325))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_8323) .cse4 v_ArrVal_8326) .cse5 v_ArrVal_8327) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse6 .cse5 v_ArrVal_8328) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) is different from false [2024-11-28 04:58:27,500 WARN L286 SmtUtils]: Spent 7.84s on a formula simplification that was a NOOP. DAG size: 356 (called from [L 276] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2024-11-28 04:58:30,300 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8419 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8327 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8326 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8325 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8324 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8323 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8420 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse5 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8419))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse3 (store .cse5 .cse1 v_ArrVal_8324))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8420) .cse1 v_ArrVal_8323) .cse2 v_ArrVal_8326) (select (select (store .cse3 .cse2 v_ArrVal_8325) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_8327))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_8419 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8328 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8327 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8326 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8325 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8324 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8323 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8420 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse11 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8419))) (let ((.cse6 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse10 (store .cse11 .cse6 v_ArrVal_8324))) (let ((.cse7 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse9 (store .cse10 .cse7 v_ArrVal_8325))) (let ((.cse8 (select (select .cse9 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8420) .cse6 v_ArrVal_8323) .cse7 v_ArrVal_8326) .cse8 v_ArrVal_8327) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (select |c_#length| (select (select (store .cse9 .cse8 v_ArrVal_8328) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)))))))))))) is different from false [2024-11-28 04:58:30,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [434600043] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:58:30,349 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:58:30,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 12 [2024-11-28 04:58:30,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499287185] [2024-11-28 04:58:30,350 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:58:30,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:58:30,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:58:30,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:58:30,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=247, Unknown=30, NotChecked=462, Total=812 [2024-11-28 04:58:30,351 INFO L87 Difference]: Start difference. First operand 1214 states and 1463 transitions. Second operand has 13 states, 11 states have (on average 10.363636363636363) internal successors, (114), 13 states have internal predecessors, (114), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 05:00:49,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:49,763 INFO L93 Difference]: Finished difference Result 1671 states and 2045 transitions. [2024-11-28 05:00:49,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 05:00:49,764 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 10.363636363636363) internal successors, (114), 13 states have internal predecessors, (114), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 128 [2024-11-28 05:00:49,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:49,768 INFO L225 Difference]: With dead ends: 1671 [2024-11-28 05:00:49,768 INFO L226 Difference]: Without dead ends: 1671 [2024-11-28 05:00:49,768 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 250 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 11 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 34.2s TimeCoverageRelationStatistics Valid=130, Invalid=532, Unknown=32, NotChecked=638, Total=1332 [2024-11-28 05:00:49,769 INFO L435 NwaCegarLoop]: 536 mSDtfsCounter, 852 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 3539 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 128.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 859 SdHoareTripleChecker+Valid, 2625 SdHoareTripleChecker+Invalid, 3546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 3539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 130.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:49,769 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [859 Valid, 2625 Invalid, 3546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 3539 Invalid, 0 Unknown, 0 Unchecked, 130.2s Time] [2024-11-28 05:00:49,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2024-11-28 05:00:49,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1213. [2024-11-28 05:00:49,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1213 states, 843 states have (on average 1.7117437722419928) internal successors, (1443), 1205 states have internal predecessors, (1443), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 05:00:49,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1213 states to 1213 states and 1462 transitions. [2024-11-28 05:00:49,789 INFO L78 Accepts]: Start accepts. Automaton has 1213 states and 1462 transitions. Word has length 128 [2024-11-28 05:00:49,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:49,789 INFO L471 AbstractCegarLoop]: Abstraction has 1213 states and 1462 transitions. [2024-11-28 05:00:49,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 10.363636363636363) internal successors, (114), 13 states have internal predecessors, (114), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 05:00:49,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1213 states and 1462 transitions. [2024-11-28 05:00:49,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 05:00:49,791 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:49,791 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:00:49,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-28 05:00:50,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (35)] Ended with exit code 0 [2024-11-28 05:00:50,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 05:00:50,192 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr96REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-28 05:00:50,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:50,193 INFO L85 PathProgramCache]: Analyzing trace with hash 532170571, now seen corresponding path program 1 times [2024-11-28 05:00:50,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:00:50,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [974532620] [2024-11-28 05:00:50,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:50,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:50,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:00:50,196 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:00:50,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-28 05:00:51,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:51,117 INFO L256 TraceCheckSpWp]: Trace formula consists of 931 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-11-28 05:00:51,125 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:00:54,969 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 05:00:54,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 05:00:55,462 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 05:01:03,038 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:01:03,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-28 05:01:04,388 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:01:04,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-28 05:01:05,808 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:01:05,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-28 05:01:07,326 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:01:07,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 05:01:10,123 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:01:10,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 05:01:10,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 05:01:12,051 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-28 05:01:12,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2024-11-28 05:01:12,123 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 05:01:12,123 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:01:15,844 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8892 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_8892) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-28 05:01:16,276 INFO L349 Elim1Store]: treesize reduction 7, result has 77.4 percent of original size [2024-11-28 05:01:16,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2024-11-28 05:01:16,404 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8892 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8891 (Array (_ BitVec 32) (_ BitVec 32)))) (= (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_8891))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8892)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) |c_ULTIMATE.start_main_#t~mem40#1.base|)) is different from false [2024-11-28 05:01:16,571 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8892 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8891 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (let ((.cse1 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_8891))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_8892)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))) is different from false [2024-11-28 05:01:16,810 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8892 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8891 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8890 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_8890)) (.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (let ((.cse0 (store .cse2 .cse3 v_ArrVal_8891))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8892)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse3)))) is different from false [2024-11-28 05:01:16,976 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8892 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8891 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8890 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_8890))) (let ((.cse0 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (let ((.cse1 (store .cse3 .cse0 v_ArrVal_8891))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_8892)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) is different from false [2024-11-28 05:01:17,222 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8892 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8891 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8890 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8889 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse2 (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_8889))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8890)))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (let ((.cse0 (store .cse2 .cse3 v_ArrVal_8891))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8892)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse3))))) is different from false [2024-11-28 05:01:17,394 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8892 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8891 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8890 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8889 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse2 (let ((.cse4 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8889))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8890)))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (let ((.cse0 (store .cse2 .cse3 v_ArrVal_8891))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8892)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse3))))) is different from false [2024-11-28 05:01:21,673 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8892 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8891 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8939 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8890 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8889 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse3 (let ((.cse4 (let ((.cse5 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8939))) (store .cse5 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_8889)))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_8890)))) (let ((.cse0 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (let ((.cse1 (store .cse3 .cse0 v_ArrVal_8891))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_8892)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) is different from false [2024-11-28 05:01:21,709 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:01:21,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974532620] [2024-11-28 05:01:21,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [974532620] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:01:21,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [230196431] [2024-11-28 05:01:21,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:01:21,710 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 05:01:21,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 05:01:21,712 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 05:01:21,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a10615-db7f-45cd-abbe-18681784e626/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2024-11-28 05:01:33,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:01:33,556 INFO L256 TraceCheckSpWp]: Trace formula consists of 931 conjuncts, 72 conjuncts are in the unsatisfiable core [2024-11-28 05:01:33,565 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:01:33,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 05:01:38,257 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-28 05:01:38,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-28 05:01:39,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 05:01:43,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-11-28 05:02:06,501 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:02:06,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 05:02:10,269 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:02:10,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 05:02:12,837 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:02:12,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 05:02:15,429 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:02:15,429 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 05:02:18,148 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:02:18,148 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 05:02:18,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 05:02:21,545 INFO L349 Elim1Store]: treesize reduction 48, result has 32.4 percent of original size [2024-11-28 05:02:21,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 36 [2024-11-28 05:02:21,758 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 05:02:21,758 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:02:24,842 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8892 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9412 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_9412))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8892)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 05:02:25,004 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8892 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9412 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9412))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8892)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 05:02:25,241 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8892 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9412 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9411 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_9411))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9412)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8892)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 05:02:25,407 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8892 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9412 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9411 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9411))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9412)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8892)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 05:02:25,656 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8892 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9412 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9411 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9410 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_9410))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9411)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9412)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8892)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 05:02:25,827 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8892 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9412 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9411 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9410 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9410))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9411)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9412)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8892)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 05:02:31,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [230196431] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:02:31,698 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:02:31,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 25 [2024-11-28 05:02:31,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989271706] [2024-11-28 05:02:31,698 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:02:31,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-28 05:02:31,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:02:31,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-28 05:02:31,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=702, Unknown=25, NotChecked=938, Total=1806 [2024-11-28 05:02:31,700 INFO L87 Difference]: Start difference. First operand 1213 states and 1462 transitions. Second operand has 26 states, 23 states have (on average 6.3478260869565215) internal successors, (146), 25 states have internal predecessors, (146), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)