./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-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 fe37ed55d149c65fede95413b0b499314c3ede2b9eb9a49f03115ea64cafc68c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:47:42,397 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:47:42,496 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-13 13:47:42,502 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:47:42,503 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:47:42,546 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:47:42,548 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:47:42,548 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:47:42,548 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:47:42,548 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:47:42,549 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:47:42,549 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:47:42,549 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:47:42,549 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:47:42,549 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:47:42,549 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:47:42,549 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:47:42,550 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:47:42,550 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:47:42,550 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:47:42,550 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 13:47:42,552 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 13:47:42,552 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-13 13:47:42,553 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:47:42,553 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 13:47:42,553 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:47:42,553 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 13:47:42,553 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:47:42,553 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:47:42,554 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:47:42,554 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:47:42,554 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:47:42,554 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:47:42,555 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:47:42,556 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:47:42,556 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:47:42,556 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:47:42,556 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:47:42,556 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:47:42,556 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:47:42,556 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:47:42,557 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:47:42,557 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_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-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 -> fe37ed55d149c65fede95413b0b499314c3ede2b9eb9a49f03115ea64cafc68c [2024-11-13 13:47:42,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:47:42,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:47:42,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:47:42,934 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:47:42,934 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:47:42,936 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i Unable to find full path for "g++" [2024-11-13 13:47:44,845 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:47:45,344 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:47:45,345 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i [2024-11-13 13:47:45,366 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/data/ff40e5ba9/c33c40bc659d4d0790aaea5debc5e1ad/FLAG26b14975b [2024-11-13 13:47:45,385 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/data/ff40e5ba9/c33c40bc659d4d0790aaea5debc5e1ad [2024-11-13 13:47:45,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:47:45,389 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:47:45,391 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:47:45,391 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:47:45,397 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:47:45,398 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:47:45" (1/1) ... [2024-11-13 13:47:45,399 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61b1d663 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:47:45, skipping insertion in model container [2024-11-13 13:47:45,400 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:47:45" (1/1) ... [2024-11-13 13:47:45,447 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:47:45,962 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:46,014 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:46,020 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:46,027 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:46,040 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:46,075 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:46,076 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:46,079 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:46,080 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:46,083 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:46,085 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:46,086 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:46,087 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:46,093 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:46,096 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:46,097 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:46,098 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:46,099 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:46,105 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:46,112 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:47:46,125 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-11-13 13:47:46,126 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@28744e55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:47:46, skipping insertion in model container [2024-11-13 13:47:46,126 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:47:46,127 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-13 13:47:46,133 INFO L158 Benchmark]: Toolchain (without parser) took 742.74ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 71.4MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 13:47:46,133 INFO L158 Benchmark]: CDTParser took 1.64ms. Allocated memory is still 167.8MB. Free memory is still 105.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:47:46,134 INFO L158 Benchmark]: CACSL2BoogieTranslator took 735.92ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 71.4MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 13:47:46,135 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.64ms. Allocated memory is still 167.8MB. Free memory is still 105.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 735.92ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 71.4MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 778]: 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_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-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 fe37ed55d149c65fede95413b0b499314c3ede2b9eb9a49f03115ea64cafc68c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:47:48,818 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:47:48,973 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-13 13:47:48,983 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:47:48,983 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:47:49,008 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:47:49,009 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:47:49,009 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:47:49,010 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:47:49,010 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:47:49,010 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:47:49,010 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:47:49,011 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:47:49,011 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:47:49,011 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:47:49,011 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:47:49,012 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:47:49,012 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:47:49,012 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:47:49,012 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:47:49,012 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 13:47:49,012 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 13:47:49,012 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-13 13:47:49,012 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:47:49,013 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 13:47:49,013 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 13:47:49,013 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:47:49,013 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 13:47:49,013 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 13:47:49,013 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:47:49,013 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:47:49,014 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:47:49,014 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:47:49,014 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:47:49,014 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:47:49,014 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:47:49,014 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:47:49,015 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:47:49,015 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 13:47:49,015 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 13:47:49,015 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:47:49,015 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:47:49,015 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:47:49,015 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:47:49,016 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_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-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 -> fe37ed55d149c65fede95413b0b499314c3ede2b9eb9a49f03115ea64cafc68c [2024-11-13 13:47:49,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:47:49,362 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:47:49,365 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:47:49,366 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:47:49,367 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:47:49,368 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i Unable to find full path for "g++" [2024-11-13 13:47:51,457 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:47:51,800 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:47:51,801 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i [2024-11-13 13:47:51,818 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/data/4391637b0/5aaff2e12f3f481ba078a8b926a3c6fa/FLAGdc87ee558 [2024-11-13 13:47:51,834 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/data/4391637b0/5aaff2e12f3f481ba078a8b926a3c6fa [2024-11-13 13:47:51,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:47:51,839 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:47:51,840 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:47:51,840 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:47:51,845 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:47:51,846 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:47:51" (1/1) ... [2024-11-13 13:47:51,847 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1080c85f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:47:51, skipping insertion in model container [2024-11-13 13:47:51,847 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:47:51" (1/1) ... [2024-11-13 13:47:51,898 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:47:52,509 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,574 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,579 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,585 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,597 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,637 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,637 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,641 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,641 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,645 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,646 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,648 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,649 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,655 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,658 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,660 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,661 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,662 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,667 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:47:52,688 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-13 13:47:52,715 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:47:52,777 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,816 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,822 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,831 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,836 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,872 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,872 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,877 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,881 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,884 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,885 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,886 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,889 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,896 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,900 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,901 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,904 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,905 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,912 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:47:52,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:47:52,925 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:47:53,028 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:47:53,101 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:47:53,102 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:47:53 WrapperNode [2024-11-13 13:47:53,102 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:47:53,103 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:47:53,103 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:47:53,103 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:47:53,110 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:47:53" (1/1) ... [2024-11-13 13:47:53,139 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:47:53" (1/1) ... [2024-11-13 13:47:53,192 INFO L138 Inliner]: procedures = 180, calls = 342, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1165 [2024-11-13 13:47:53,192 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:47:53,195 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:47:53,195 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:47:53,195 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:47:53,211 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:47:53" (1/1) ... [2024-11-13 13:47:53,212 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:47:53" (1/1) ... [2024-11-13 13:47:53,233 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:47:53" (1/1) ... [2024-11-13 13:47:53,364 INFO L175 MemorySlicer]: Split 304 memory accesses to 3 slices as follows [2, 34, 268]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 62 writes are split as follows [0, 4, 58]. [2024-11-13 13:47:53,364 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:47:53" (1/1) ... [2024-11-13 13:47:53,364 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:47:53" (1/1) ... [2024-11-13 13:47:53,440 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:47:53" (1/1) ... [2024-11-13 13:47:53,461 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:47:53" (1/1) ... [2024-11-13 13:47:53,474 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:47:53" (1/1) ... [2024-11-13 13:47:53,478 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:47:53" (1/1) ... [2024-11-13 13:47:53,488 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:47:53,492 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:47:53,492 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:47:53,492 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:47:53,497 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:47:53" (1/1) ... [2024-11-13 13:47:53,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:47:53,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:47:53,546 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:47:53,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:47:53,579 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-13 13:47:53,579 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-13 13:47:53,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-13 13:47:53,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-13 13:47:53,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-13 13:47:53,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-13 13:47:53,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-13 13:47:53,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-13 13:47:53,580 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 13:47:53,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 13:47:53,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-13 13:47:53,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-13 13:47:53,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-13 13:47:53,580 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-13 13:47:53,580 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-13 13:47:53,580 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-13 13:47:53,580 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2024-11-13 13:47:53,580 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2024-11-13 13:47:53,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 13:47:53,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:47:53,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-13 13:47:53,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-13 13:47:53,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-13 13:47:53,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 13:47:53,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-13 13:47:53,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-13 13:47:53,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-13 13:47:53,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 13:47:53,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-13 13:47:53,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-13 13:47:53,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-13 13:47:53,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 13:47:53,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-13 13:47:53,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-13 13:47:53,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:47:53,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:47:53,905 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:47:53,908 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:47:53,937 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-13 13:47:53,987 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-13 13:47:54,019 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-13 13:48:00,323 INFO L? ?]: Removed 1321 outVars from TransFormulas that were not future-live. [2024-11-13 13:48:00,324 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:48:00,389 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:48:00,389 INFO L316 CfgBuilder]: Removed 71 assume(true) statements. [2024-11-13 13:48:00,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:48:00 BoogieIcfgContainer [2024-11-13 13:48:00,390 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:48:00,394 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:48:00,395 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:48:00,402 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:48:00,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:47:51" (1/3) ... [2024-11-13 13:48:00,403 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26e4140b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:48:00, skipping insertion in model container [2024-11-13 13:48:00,403 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:47:53" (2/3) ... [2024-11-13 13:48:00,404 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26e4140b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:48:00, skipping insertion in model container [2024-11-13 13:48:00,404 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:48:00" (3/3) ... [2024-11-13 13:48:00,405 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test8-2.i [2024-11-13 13:48:00,423 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:48:00,425 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_BER_test8-2.i that has 7 procedures, 1309 locations, 1 initial locations, 42 loop locations, and 634 error locations. [2024-11-13 13:48:00,520 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:48:00,539 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;@62c7e286, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:48:00,540 INFO L334 AbstractCegarLoop]: Starting to check reachability of 634 error locations. [2024-11-13 13:48:00,551 INFO L276 IsEmpty]: Start isEmpty. Operand has 1299 states, 641 states have (on average 2.2293291731669265) internal successors, (1429), 1289 states have internal predecessors, (1429), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-13 13:48:00,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-13 13:48:00,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:00,557 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-13 13:48:00,559 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-13 13:48:00,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:00,566 INFO L85 PathProgramCache]: Analyzing trace with hash 158947, now seen corresponding path program 1 times [2024-11-13 13:48:00,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:48:00,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1350438809] [2024-11-13 13:48:00,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:00,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:00,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:48:00,583 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:48:00,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 13:48:00,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:00,813 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 13:48:00,822 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:48:00,869 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 [2024-11-13 13:48:00,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:48:00,896 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:48:00,897 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:48:00,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350438809] [2024-11-13 13:48:00,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350438809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:00,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:00,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:48:00,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414747903] [2024-11-13 13:48:00,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:00,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:48:00,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:48:00,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:48:00,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:48:00,945 INFO L87 Difference]: Start difference. First operand has 1299 states, 641 states have (on average 2.2293291731669265) internal successors, (1429), 1289 states have internal predecessors, (1429), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) 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) [2024-11-13 13:48:03,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:03,870 INFO L93 Difference]: Finished difference Result 1481 states and 1588 transitions. [2024-11-13 13:48:03,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:48:03,872 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 [2024-11-13 13:48:03,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:03,891 INFO L225 Difference]: With dead ends: 1481 [2024-11-13 13:48:03,891 INFO L226 Difference]: Without dead ends: 1479 [2024-11-13 13:48:03,893 INFO L431 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 [2024-11-13 13:48:03,896 INFO L432 NwaCegarLoop]: 822 mSDtfsCounter, 1153 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:03,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1157 Valid, 1060 Invalid, 766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-13 13:48:03,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1479 states. [2024-11-13 13:48:04,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1479 to 1288. [2024-11-13 13:48:04,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1288 states, 646 states have (on average 2.08359133126935) internal successors, (1346), 1277 states have internal predecessors, (1346), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-13 13:48:04,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 1390 transitions. [2024-11-13 13:48:04,036 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 1390 transitions. Word has length 3 [2024-11-13 13:48:04,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:04,037 INFO L471 AbstractCegarLoop]: Abstraction has 1288 states and 1390 transitions. [2024-11-13 13:48:04,037 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) [2024-11-13 13:48:04,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 1390 transitions. [2024-11-13 13:48:04,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-13 13:48:04,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:04,039 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-13 13:48:04,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-13 13:48:04,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:04,240 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-13 13:48:04,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:04,241 INFO L85 PathProgramCache]: Analyzing trace with hash 158948, now seen corresponding path program 1 times [2024-11-13 13:48:04,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:48:04,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [776267446] [2024-11-13 13:48:04,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:04,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:04,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:48:04,243 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:48:04,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 13:48:04,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:04,404 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 13:48:04,407 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:48:04,419 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 [2024-11-13 13:48:04,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:48:04,438 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:48:04,438 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:48:04,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776267446] [2024-11-13 13:48:04,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [776267446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:04,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:04,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:48:04,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924531733] [2024-11-13 13:48:04,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:04,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:48:04,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:48:04,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:48:04,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:48:04,441 INFO L87 Difference]: Start difference. First operand 1288 states and 1390 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) [2024-11-13 13:48:08,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:08,475 INFO L93 Difference]: Finished difference Result 1889 states and 2034 transitions. [2024-11-13 13:48:08,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:48:08,476 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 [2024-11-13 13:48:08,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:08,484 INFO L225 Difference]: With dead ends: 1889 [2024-11-13 13:48:08,485 INFO L226 Difference]: Without dead ends: 1889 [2024-11-13 13:48:08,485 INFO L431 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 [2024-11-13 13:48:08,486 INFO L432 NwaCegarLoop]: 1085 mSDtfsCounter, 640 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 900 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 1840 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:08,486 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [641 Valid, 1840 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 900 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-13 13:48:08,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1889 states. [2024-11-13 13:48:08,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1889 to 1500. [2024-11-13 13:48:08,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1500 states, 858 states have (on average 2.0687645687645686) internal successors, (1775), 1488 states have internal predecessors, (1775), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-13 13:48:08,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 1821 transitions. [2024-11-13 13:48:08,536 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 1821 transitions. Word has length 3 [2024-11-13 13:48:08,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:08,537 INFO L471 AbstractCegarLoop]: Abstraction has 1500 states and 1821 transitions. [2024-11-13 13:48:08,537 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) [2024-11-13 13:48:08,537 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 1821 transitions. [2024-11-13 13:48:08,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 13:48:08,538 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:08,538 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:48:08,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 13:48:08,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:08,742 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-13 13:48:08,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:08,742 INFO L85 PathProgramCache]: Analyzing trace with hash 765366893, now seen corresponding path program 1 times [2024-11-13 13:48:08,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:48:08,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [745577756] [2024-11-13 13:48:08,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:08,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:08,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:48:08,748 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:48:08,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 13:48:08,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:08,927 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 13:48:08,930 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:48:08,944 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 [2024-11-13 13:48:09,034 INFO L349 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2024-11-13 13:48:09,035 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 [2024-11-13 13:48:09,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:48:09,169 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:48:09,169 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:48:09,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745577756] [2024-11-13 13:48:09,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [745577756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:09,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:09,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:48:09,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331995894] [2024-11-13 13:48:09,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:09,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:48:09,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:48:09,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:48:09,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:48:09,172 INFO L87 Difference]: Start difference. First operand 1500 states and 1821 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:48:16,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:16,911 INFO L93 Difference]: Finished difference Result 2784 states and 2989 transitions. [2024-11-13 13:48:16,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:48:16,911 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2024-11-13 13:48:16,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:16,922 INFO L225 Difference]: With dead ends: 2784 [2024-11-13 13:48:16,922 INFO L226 Difference]: Without dead ends: 2784 [2024-11-13 13:48:16,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:48:16,923 INFO L432 NwaCegarLoop]: 1304 mSDtfsCounter, 1582 mSDsluCounter, 1505 mSDsCounter, 0 mSdLazyCounter, 1956 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1585 SdHoareTripleChecker+Valid, 2809 SdHoareTripleChecker+Invalid, 1967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:16,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1585 Valid, 2809 Invalid, 1967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1956 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2024-11-13 13:48:16,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2024-11-13 13:48:16,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 1652. [2024-11-13 13:48:16,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1652 states, 1009 states have (on average 2.049554013875124) internal successors, (2068), 1639 states have internal predecessors, (2068), 25 states have call successors, (25), 4 states have call predecessors, (25), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-13 13:48:16,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1652 states to 1652 states and 2116 transitions. [2024-11-13 13:48:16,977 INFO L78 Accepts]: Start accepts. Automaton has 1652 states and 2116 transitions. Word has length 7 [2024-11-13 13:48:16,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:16,977 INFO L471 AbstractCegarLoop]: Abstraction has 1652 states and 2116 transitions. [2024-11-13 13:48:16,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:48:16,978 INFO L276 IsEmpty]: Start isEmpty. Operand 1652 states and 2116 transitions. [2024-11-13 13:48:16,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 13:48:16,978 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:16,978 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:48:17,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 13:48:17,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:17,183 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-13 13:48:17,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:17,183 INFO L85 PathProgramCache]: Analyzing trace with hash -2043429998, now seen corresponding path program 1 times [2024-11-13 13:48:17,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:48:17,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [765922909] [2024-11-13 13:48:17,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:17,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:17,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:48:17,186 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:48:17,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 13:48:17,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:17,360 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 13:48:17,362 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:48:17,369 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 [2024-11-13 13:48:17,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:48:17,386 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:48:17,387 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:48:17,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765922909] [2024-11-13 13:48:17,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765922909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:17,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:17,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:48:17,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020574767] [2024-11-13 13:48:17,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:17,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:48:17,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:48:17,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:48:17,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:48:17,389 INFO L87 Difference]: Start difference. First operand 1652 states and 2116 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2024-11-13 13:48:20,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:20,230 INFO L93 Difference]: Finished difference Result 1991 states and 2475 transitions. [2024-11-13 13:48:20,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:48:20,230 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 [2024-11-13 13:48:20,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:20,237 INFO L225 Difference]: With dead ends: 1991 [2024-11-13 13:48:20,238 INFO L226 Difference]: Without dead ends: 1991 [2024-11-13 13:48:20,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:48:20,239 INFO L432 NwaCegarLoop]: 1232 mSDtfsCounter, 949 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 954 SdHoareTripleChecker+Valid, 1644 SdHoareTripleChecker+Invalid, 915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:20,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [954 Valid, 1644 Invalid, 915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-13 13:48:20,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2024-11-13 13:48:20,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 1604. [2024-11-13 13:48:20,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1604 states, 1009 states have (on average 1.9890981169474728) internal successors, (2007), 1591 states have internal predecessors, (2007), 25 states have call successors, (25), 4 states have call predecessors, (25), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-13 13:48:20,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2055 transitions. [2024-11-13 13:48:20,283 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2055 transitions. Word has length 8 [2024-11-13 13:48:20,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:20,283 INFO L471 AbstractCegarLoop]: Abstraction has 1604 states and 2055 transitions. [2024-11-13 13:48:20,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2024-11-13 13:48:20,284 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2055 transitions. [2024-11-13 13:48:20,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 13:48:20,285 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:20,285 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:48:20,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 13:48:20,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:20,489 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-13 13:48:20,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:20,489 INFO L85 PathProgramCache]: Analyzing trace with hash -2043429997, now seen corresponding path program 1 times [2024-11-13 13:48:20,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:48:20,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1827970989] [2024-11-13 13:48:20,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:20,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:20,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:48:20,491 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:48:20,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 13:48:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:20,652 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 13:48:20,654 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:48:20,668 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 [2024-11-13 13:48:20,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:48:20,704 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:48:20,704 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:48:20,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827970989] [2024-11-13 13:48:20,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1827970989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:20,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:20,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:48:20,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709498414] [2024-11-13 13:48:20,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:20,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:48:20,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:48:20,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:48:20,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:48:20,706 INFO L87 Difference]: Start difference. First operand 1604 states and 2055 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2024-11-13 13:48:24,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:24,609 INFO L93 Difference]: Finished difference Result 2308 states and 3001 transitions. [2024-11-13 13:48:24,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:48:24,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 [2024-11-13 13:48:24,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:24,616 INFO L225 Difference]: With dead ends: 2308 [2024-11-13 13:48:24,616 INFO L226 Difference]: Without dead ends: 2308 [2024-11-13 13:48:24,616 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:48:24,617 INFO L432 NwaCegarLoop]: 1430 mSDtfsCounter, 712 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 2026 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:24,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [714 Valid, 2026 Invalid, 873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-13 13:48:24,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2308 states. [2024-11-13 13:48:24,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2308 to 2072. [2024-11-13 13:48:24,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2072 states, 1484 states have (on average 1.9818059299191375) internal successors, (2941), 2056 states have internal predecessors, (2941), 28 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (26), 12 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-13 13:48:24,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2072 states to 2072 states and 2995 transitions. [2024-11-13 13:48:24,676 INFO L78 Accepts]: Start accepts. Automaton has 2072 states and 2995 transitions. Word has length 8 [2024-11-13 13:48:24,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:24,676 INFO L471 AbstractCegarLoop]: Abstraction has 2072 states and 2995 transitions. [2024-11-13 13:48:24,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2024-11-13 13:48:24,677 INFO L276 IsEmpty]: Start isEmpty. Operand 2072 states and 2995 transitions. [2024-11-13 13:48:24,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 13:48:24,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:24,677 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:48:24,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 13:48:24,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:24,878 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr527REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-13 13:48:24,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:24,879 INFO L85 PathProgramCache]: Analyzing trace with hash -285805800, now seen corresponding path program 1 times [2024-11-13 13:48:24,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:48:24,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [117535774] [2024-11-13 13:48:24,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:24,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:24,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:48:24,883 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:48:24,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 13:48:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:25,068 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 13:48:25,071 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:48:25,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:48:25,156 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:48:25,157 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:48:25,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117535774] [2024-11-13 13:48:25,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117535774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:25,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:25,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:48:25,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134297436] [2024-11-13 13:48:25,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:25,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:48:25,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:48:25,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:48:25,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:48:25,159 INFO L87 Difference]: Start difference. First operand 2072 states and 2995 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2024-11-13 13:48:25,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:25,698 INFO L93 Difference]: Finished difference Result 2646 states and 3662 transitions. [2024-11-13 13:48:25,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:48:25,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 [2024-11-13 13:48:25,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:25,711 INFO L225 Difference]: With dead ends: 2646 [2024-11-13 13:48:25,711 INFO L226 Difference]: Without dead ends: 2646 [2024-11-13 13:48:25,711 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:48:25,712 INFO L432 NwaCegarLoop]: 1454 mSDtfsCounter, 637 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 2651 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:25,714 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 2651 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 13:48:25,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2646 states. [2024-11-13 13:48:25,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2646 to 2273. [2024-11-13 13:48:25,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2273 states, 1684 states have (on average 1.9887173396674585) internal successors, (3349), 2256 states have internal predecessors, (3349), 29 states have call successors, (29), 4 states have call predecessors, (29), 3 states have return successors, (27), 13 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-13 13:48:25,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2273 states to 2273 states and 3405 transitions. [2024-11-13 13:48:25,777 INFO L78 Accepts]: Start accepts. Automaton has 2273 states and 3405 transitions. Word has length 11 [2024-11-13 13:48:25,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:25,777 INFO L471 AbstractCegarLoop]: Abstraction has 2273 states and 3405 transitions. [2024-11-13 13:48:25,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2024-11-13 13:48:25,778 INFO L276 IsEmpty]: Start isEmpty. Operand 2273 states and 3405 transitions. [2024-11-13 13:48:25,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-13 13:48:25,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:25,778 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:48:25,801 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 13:48:25,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:25,980 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr335REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-13 13:48:25,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:25,981 INFO L85 PathProgramCache]: Analyzing trace with hash -368276905, now seen corresponding path program 1 times [2024-11-13 13:48:25,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:48:25,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [93693098] [2024-11-13 13:48:25,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:25,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:25,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:48:25,984 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:48:25,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 13:48:26,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:26,159 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 13:48:26,161 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:48:26,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:48:26,175 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:48:26,175 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:48:26,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93693098] [2024-11-13 13:48:26,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93693098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:26,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:26,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:48:26,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823690796] [2024-11-13 13:48:26,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:26,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:48:26,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:48:26,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:48:26,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:48:26,178 INFO L87 Difference]: Start difference. First operand 2273 states and 3405 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:48:26,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:26,228 INFO L93 Difference]: Finished difference Result 2141 states and 3147 transitions. [2024-11-13 13:48:26,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:48:26,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2024-11-13 13:48:26,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:26,237 INFO L225 Difference]: With dead ends: 2141 [2024-11-13 13:48:26,238 INFO L226 Difference]: Without dead ends: 2141 [2024-11-13 13:48:26,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:48:26,239 INFO L432 NwaCegarLoop]: 1258 mSDtfsCounter, 71 mSDsluCounter, 1195 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 2453 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:26,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 2453 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:48:26,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2141 states. [2024-11-13 13:48:26,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2141 to 2141. [2024-11-13 13:48:26,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2141 states, 1576 states have (on average 1.9612944162436547) internal successors, (3091), 2124 states have internal predecessors, (3091), 29 states have call successors, (29), 4 states have call predecessors, (29), 3 states have return successors, (27), 13 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-13 13:48:26,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2141 states to 2141 states and 3147 transitions. [2024-11-13 13:48:26,288 INFO L78 Accepts]: Start accepts. Automaton has 2141 states and 3147 transitions. Word has length 13 [2024-11-13 13:48:26,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:26,288 INFO L471 AbstractCegarLoop]: Abstraction has 2141 states and 3147 transitions. [2024-11-13 13:48:26,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:48:26,289 INFO L276 IsEmpty]: Start isEmpty. Operand 2141 states and 3147 transitions. [2024-11-13 13:48:26,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-13 13:48:26,289 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:26,289 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:48:26,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-13 13:48:26,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:26,490 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr632ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-13 13:48:26,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:26,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1807944644, now seen corresponding path program 1 times [2024-11-13 13:48:26,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:48:26,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1589961343] [2024-11-13 13:48:26,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:26,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:26,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:48:26,493 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:48:26,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 13:48:26,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:26,676 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 13:48:26,678 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:48:26,688 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-13 13:48:26,689 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-13 13:48:26,689 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-13 13:48:26,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2024-11-13 13:48:26,768 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:48:26,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-11-13 13:48:26,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:48:26,785 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:48:26,785 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:48:26,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589961343] [2024-11-13 13:48:26,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589961343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:26,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:26,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:48:26,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054058727] [2024-11-13 13:48:26,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:26,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:48:26,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:48:26,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:48:26,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:48:26,787 INFO L87 Difference]: Start difference. First operand 2141 states and 3147 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:48:27,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:27,294 INFO L93 Difference]: Finished difference Result 3158 states and 4258 transitions. [2024-11-13 13:48:27,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:48:27,295 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2024-11-13 13:48:27,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:27,306 INFO L225 Difference]: With dead ends: 3158 [2024-11-13 13:48:27,306 INFO L226 Difference]: Without dead ends: 3158 [2024-11-13 13:48:27,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:48:27,307 INFO L432 NwaCegarLoop]: 1453 mSDtfsCounter, 1121 mSDsluCounter, 2675 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1126 SdHoareTripleChecker+Valid, 4128 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:27,307 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1126 Valid, 4128 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 13:48:27,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3158 states. [2024-11-13 13:48:27,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3158 to 1806. [2024-11-13 13:48:27,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1806 states, 1243 states have (on average 1.9549477071600965) internal successors, (2430), 1791 states have internal predecessors, (2430), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-13 13:48:27,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1806 states to 1806 states and 2482 transitions. [2024-11-13 13:48:27,352 INFO L78 Accepts]: Start accepts. Automaton has 1806 states and 2482 transitions. Word has length 14 [2024-11-13 13:48:27,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:27,352 INFO L471 AbstractCegarLoop]: Abstraction has 1806 states and 2482 transitions. [2024-11-13 13:48:27,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:48:27,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1806 states and 2482 transitions. [2024-11-13 13:48:27,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-13 13:48:27,353 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:27,353 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:48:27,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-13 13:48:27,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:27,554 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-13 13:48:27,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:27,554 INFO L85 PathProgramCache]: Analyzing trace with hash 114814814, now seen corresponding path program 1 times [2024-11-13 13:48:27,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:48:27,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1258882374] [2024-11-13 13:48:27,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:27,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:27,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:48:27,556 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:48:27,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 13:48:27,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:27,750 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 13:48:27,752 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:48:27,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:48:27,805 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:48:27,805 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:48:27,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258882374] [2024-11-13 13:48:27,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258882374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:27,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:27,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:48:27,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329496584] [2024-11-13 13:48:27,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:27,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:48:27,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:48:27,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:48:27,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:48:27,807 INFO L87 Difference]: Start difference. First operand 1806 states and 2482 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:48:30,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:30,800 INFO L93 Difference]: Finished difference Result 1804 states and 2460 transitions. [2024-11-13 13:48:30,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:48:30,800 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 18 [2024-11-13 13:48:30,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:30,804 INFO L225 Difference]: With dead ends: 1804 [2024-11-13 13:48:30,804 INFO L226 Difference]: Without dead ends: 1804 [2024-11-13 13:48:30,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:48:30,805 INFO L432 NwaCegarLoop]: 787 mSDtfsCounter, 955 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 1220 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 960 SdHoareTripleChecker+Valid, 1580 SdHoareTripleChecker+Invalid, 1249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:30,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [960 Valid, 1580 Invalid, 1249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1220 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-13 13:48:30,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1804 states. [2024-11-13 13:48:30,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1804 to 1783. [2024-11-13 13:48:30,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1783 states, 1243 states have (on average 1.917940466613033) internal successors, (2384), 1768 states have internal predecessors, (2384), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-13 13:48:30,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1783 states to 1783 states and 2436 transitions. [2024-11-13 13:48:30,837 INFO L78 Accepts]: Start accepts. Automaton has 1783 states and 2436 transitions. Word has length 18 [2024-11-13 13:48:30,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:30,838 INFO L471 AbstractCegarLoop]: Abstraction has 1783 states and 2436 transitions. [2024-11-13 13:48:30,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:48:30,838 INFO L276 IsEmpty]: Start isEmpty. Operand 1783 states and 2436 transitions. [2024-11-13 13:48:30,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-13 13:48:30,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:30,838 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:48:30,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-13 13:48:31,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:31,043 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-13 13:48:31,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:31,047 INFO L85 PathProgramCache]: Analyzing trace with hash 114814815, now seen corresponding path program 1 times [2024-11-13 13:48:31,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:48:31,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1848238775] [2024-11-13 13:48:31,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:31,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:31,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:48:31,054 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:48:31,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 13:48:31,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:31,256 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 13:48:31,257 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:48:31,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:48:31,284 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:48:31,284 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:48:31,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848238775] [2024-11-13 13:48:31,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1848238775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:31,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:31,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:48:31,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083306189] [2024-11-13 13:48:31,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:31,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:48:31,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:48:31,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:48:31,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:48:31,285 INFO L87 Difference]: Start difference. First operand 1783 states and 2436 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:48:31,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:31,320 INFO L93 Difference]: Finished difference Result 1735 states and 2374 transitions. [2024-11-13 13:48:31,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:48:31,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2024-11-13 13:48:31,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:31,328 INFO L225 Difference]: With dead ends: 1735 [2024-11-13 13:48:31,328 INFO L226 Difference]: Without dead ends: 1735 [2024-11-13 13:48:31,328 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:48:31,329 INFO L432 NwaCegarLoop]: 1204 mSDtfsCounter, 61 mSDsluCounter, 1151 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 2355 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:31,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 2355 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:48:31,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1735 states. [2024-11-13 13:48:31,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1735 to 1735. [2024-11-13 13:48:31,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1735 states, 1207 states have (on average 1.923777961888981) internal successors, (2322), 1720 states have internal predecessors, (2322), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-13 13:48:31,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1735 states to 1735 states and 2374 transitions. [2024-11-13 13:48:31,360 INFO L78 Accepts]: Start accepts. Automaton has 1735 states and 2374 transitions. Word has length 18 [2024-11-13 13:48:31,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:31,361 INFO L471 AbstractCegarLoop]: Abstraction has 1735 states and 2374 transitions. [2024-11-13 13:48:31,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:48:31,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1735 states and 2374 transitions. [2024-11-13 13:48:31,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-13 13:48:31,361 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:31,362 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:48:31,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-13 13:48:31,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:31,566 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-13 13:48:31,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:31,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1332114216, now seen corresponding path program 1 times [2024-11-13 13:48:31,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:48:31,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [498455362] [2024-11-13 13:48:31,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:31,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:31,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:48:31,570 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:48:31,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 13:48:31,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:31,786 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 13:48:31,787 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:48:31,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:48:31,816 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:48:31,816 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:48:31,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498455362] [2024-11-13 13:48:31,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498455362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:31,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:31,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:48:31,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453340776] [2024-11-13 13:48:31,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:31,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:48:31,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:48:31,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:48:31,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:48:31,818 INFO L87 Difference]: Start difference. First operand 1735 states and 2374 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:48:31,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:31,934 INFO L93 Difference]: Finished difference Result 1712 states and 2330 transitions. [2024-11-13 13:48:31,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:48:31,935 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 20 [2024-11-13 13:48:31,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:31,944 INFO L225 Difference]: With dead ends: 1712 [2024-11-13 13:48:31,944 INFO L226 Difference]: Without dead ends: 1712 [2024-11-13 13:48:31,945 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:48:31,945 INFO L432 NwaCegarLoop]: 1166 mSDtfsCounter, 45 mSDsluCounter, 2309 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3475 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:31,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3475 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:48:31,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1712 states. [2024-11-13 13:48:31,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1712 to 1712. [2024-11-13 13:48:31,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1712 states, 1191 states have (on average 1.9126784214945425) internal successors, (2278), 1697 states have internal predecessors, (2278), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-13 13:48:31,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1712 states to 1712 states and 2330 transitions. [2024-11-13 13:48:31,980 INFO L78 Accepts]: Start accepts. Automaton has 1712 states and 2330 transitions. Word has length 20 [2024-11-13 13:48:31,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:31,980 INFO L471 AbstractCegarLoop]: Abstraction has 1712 states and 2330 transitions. [2024-11-13 13:48:31,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:48:31,980 INFO L276 IsEmpty]: Start isEmpty. Operand 1712 states and 2330 transitions. [2024-11-13 13:48:31,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-13 13:48:31,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:31,983 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:48:32,005 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-13 13:48:32,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:32,187 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-13 13:48:32,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:32,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1169565402, now seen corresponding path program 1 times [2024-11-13 13:48:32,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:48:32,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1780144790] [2024-11-13 13:48:32,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:32,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:32,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:48:32,190 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:48:32,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-13 13:48:32,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:32,425 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 13:48:32,428 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:48:32,440 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 [2024-11-13 13:48:32,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:48:32,717 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:48:32,717 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:48:32,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780144790] [2024-11-13 13:48:32,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1780144790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:32,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:32,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:48:32,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040406960] [2024-11-13 13:48:32,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:32,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:48:32,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:48:32,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:48:32,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:48:32,719 INFO L87 Difference]: Start difference. First operand 1712 states and 2330 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:48:37,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:37,450 INFO L93 Difference]: Finished difference Result 1929 states and 2337 transitions. [2024-11-13 13:48:37,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:48:37,451 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2024-11-13 13:48:37,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:37,457 INFO L225 Difference]: With dead ends: 1929 [2024-11-13 13:48:37,457 INFO L226 Difference]: Without dead ends: 1929 [2024-11-13 13:48:37,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:48:37,458 INFO L432 NwaCegarLoop]: 1420 mSDtfsCounter, 598 mSDsluCounter, 1470 mSDsCounter, 0 mSdLazyCounter, 1521 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 600 SdHoareTripleChecker+Valid, 2890 SdHoareTripleChecker+Invalid, 1524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:37,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [600 Valid, 2890 Invalid, 1524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1521 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-13 13:48:37,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1929 states. [2024-11-13 13:48:37,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1929 to 1708. [2024-11-13 13:48:37,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1708 states, 1191 states have (on average 1.9059613769941226) internal successors, (2270), 1693 states have internal predecessors, (2270), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-13 13:48:37,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1708 states to 1708 states and 2322 transitions. [2024-11-13 13:48:37,487 INFO L78 Accepts]: Start accepts. Automaton has 1708 states and 2322 transitions. Word has length 34 [2024-11-13 13:48:37,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:37,488 INFO L471 AbstractCegarLoop]: Abstraction has 1708 states and 2322 transitions. [2024-11-13 13:48:37,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:48:37,488 INFO L276 IsEmpty]: Start isEmpty. Operand 1708 states and 2322 transitions. [2024-11-13 13:48:37,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-13 13:48:37,489 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:37,490 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:48:37,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-13 13:48:37,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:37,690 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-13 13:48:37,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:37,691 INFO L85 PathProgramCache]: Analyzing trace with hash 481322879, now seen corresponding path program 1 times [2024-11-13 13:48:37,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:48:37,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [197155674] [2024-11-13 13:48:37,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:37,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:37,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:48:37,695 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:48:37,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-13 13:48:37,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:37,955 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 13:48:37,958 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:48:38,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:48:38,036 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:48:38,036 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:48:38,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197155674] [2024-11-13 13:48:38,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197155674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:38,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:38,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:48:38,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873747245] [2024-11-13 13:48:38,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:38,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:48:38,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:48:38,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:48:38,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:48:38,038 INFO L87 Difference]: Start difference. First operand 1708 states and 2322 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:48:38,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:38,116 INFO L93 Difference]: Finished difference Result 1696 states and 2302 transitions. [2024-11-13 13:48:38,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:48:38,116 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 53 [2024-11-13 13:48:38,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:38,121 INFO L225 Difference]: With dead ends: 1696 [2024-11-13 13:48:38,121 INFO L226 Difference]: Without dead ends: 1696 [2024-11-13 13:48:38,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:48:38,122 INFO L432 NwaCegarLoop]: 1164 mSDtfsCounter, 21 mSDsluCounter, 2297 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 3461 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:38,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 3461 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:48:38,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1696 states. [2024-11-13 13:48:38,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1696 to 1696. [2024-11-13 13:48:38,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1696 states, 1179 states have (on average 1.9083969465648856) internal successors, (2250), 1681 states have internal predecessors, (2250), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-13 13:48:38,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1696 states to 1696 states and 2302 transitions. [2024-11-13 13:48:38,146 INFO L78 Accepts]: Start accepts. Automaton has 1696 states and 2302 transitions. Word has length 53 [2024-11-13 13:48:38,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:38,146 INFO L471 AbstractCegarLoop]: Abstraction has 1696 states and 2302 transitions. [2024-11-13 13:48:38,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:48:38,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1696 states and 2302 transitions. [2024-11-13 13:48:38,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-13 13:48:38,147 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:38,147 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:48:38,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-13 13:48:38,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:38,348 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-13 13:48:38,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:38,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1637440051, now seen corresponding path program 1 times [2024-11-13 13:48:38,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:48:38,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1694231814] [2024-11-13 13:48:38,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:38,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:38,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:48:38,352 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:48:38,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-13 13:48:38,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:38,624 INFO L255 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 13:48:38,627 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:48:38,636 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 [2024-11-13 13:48:39,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 13:48:39,324 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 [2024-11-13 13:48:39,347 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 13:48:39,347 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 [2024-11-13 13:48:39,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:48:39,355 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:48:39,355 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:48:39,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694231814] [2024-11-13 13:48:39,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694231814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:39,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:39,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:48:39,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128489275] [2024-11-13 13:48:39,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:39,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:48:39,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:48:39,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:48:39,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:48:39,356 INFO L87 Difference]: Start difference. First operand 1696 states and 2302 transitions. Second operand has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:48:43,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:43,040 INFO L93 Difference]: Finished difference Result 1669 states and 2276 transitions. [2024-11-13 13:48:43,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:48:43,041 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 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 61 [2024-11-13 13:48:43,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:43,046 INFO L225 Difference]: With dead ends: 1669 [2024-11-13 13:48:43,046 INFO L226 Difference]: Without dead ends: 1669 [2024-11-13 13:48:43,046 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:48:43,047 INFO L432 NwaCegarLoop]: 585 mSDtfsCounter, 823 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1433 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 1478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:43,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [828 Valid, 1157 Invalid, 1478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1433 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-13 13:48:43,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1669 states. [2024-11-13 13:48:43,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1669 to 1267. [2024-11-13 13:48:43,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1267 states, 793 states have (on average 1.8234552332912988) internal successors, (1446), 1255 states have internal predecessors, (1446), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-13 13:48:43,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1267 states to 1267 states and 1492 transitions. [2024-11-13 13:48:43,068 INFO L78 Accepts]: Start accepts. Automaton has 1267 states and 1492 transitions. Word has length 61 [2024-11-13 13:48:43,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:43,069 INFO L471 AbstractCegarLoop]: Abstraction has 1267 states and 1492 transitions. [2024-11-13 13:48:43,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:48:43,069 INFO L276 IsEmpty]: Start isEmpty. Operand 1267 states and 1492 transitions. [2024-11-13 13:48:43,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-13 13:48:43,070 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:43,070 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:48:43,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-13 13:48:43,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:43,271 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-13 13:48:43,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:43,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1248614115, now seen corresponding path program 1 times [2024-11-13 13:48:43,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:48:43,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1103086964] [2024-11-13 13:48:43,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:43,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:43,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:48:43,273 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:48:43,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-13 13:48:43,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:43,555 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 13:48:43,558 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:48:43,572 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 [2024-11-13 13:48:43,595 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 [2024-11-13 13:48:43,606 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 [2024-11-13 13:48:43,674 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 [2024-11-13 13:48:43,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:48:43,701 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:48:43,702 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:48:43,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1103086964] [2024-11-13 13:48:43,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1103086964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:43,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:43,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:48:43,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978088486] [2024-11-13 13:48:43,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:43,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:48:43,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:48:43,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:48:43,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:48:43,704 INFO L87 Difference]: Start difference. First operand 1267 states and 1492 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:48:47,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:47,724 INFO L93 Difference]: Finished difference Result 1266 states and 1491 transitions. [2024-11-13 13:48:47,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:48:47,725 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 66 [2024-11-13 13:48:47,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:47,729 INFO L225 Difference]: With dead ends: 1266 [2024-11-13 13:48:47,729 INFO L226 Difference]: Without dead ends: 1266 [2024-11-13 13:48:47,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:48:47,730 INFO L432 NwaCegarLoop]: 1135 mSDtfsCounter, 2 mSDsluCounter, 1912 mSDsCounter, 0 mSdLazyCounter, 1500 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3047 SdHoareTripleChecker+Invalid, 1501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:47,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3047 Invalid, 1501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1500 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-13 13:48:47,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2024-11-13 13:48:47,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1266. [2024-11-13 13:48:47,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1266 states, 793 states have (on average 1.8221941992433797) internal successors, (1445), 1254 states have internal predecessors, (1445), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-13 13:48:47,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1491 transitions. [2024-11-13 13:48:47,747 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 1491 transitions. Word has length 66 [2024-11-13 13:48:47,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:47,747 INFO L471 AbstractCegarLoop]: Abstraction has 1266 states and 1491 transitions. [2024-11-13 13:48:47,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:48:47,748 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 1491 transitions. [2024-11-13 13:48:47,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-13 13:48:47,748 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:47,749 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:48:47,771 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-13 13:48:47,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:47,949 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-13 13:48:47,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:47,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1248614116, now seen corresponding path program 1 times [2024-11-13 13:48:47,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:48:47,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1897835116] [2024-11-13 13:48:47,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:47,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:47,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:48:47,952 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:48:47,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-13 13:48:48,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:48,244 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 13:48:48,246 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:48:48,259 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 [2024-11-13 13:48:48,283 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 [2024-11-13 13:48:48,317 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 [2024-11-13 13:48:48,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:48:48,330 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:48:48,330 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:48:48,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897835116] [2024-11-13 13:48:48,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1897835116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:48,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:48,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:48:48,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073070469] [2024-11-13 13:48:48,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:48,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:48:48,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:48:48,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:48:48,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:48:48,332 INFO L87 Difference]: Start difference. First operand 1266 states and 1491 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:48:51,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:51,561 INFO L93 Difference]: Finished difference Result 1265 states and 1490 transitions. [2024-11-13 13:48:51,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:48:51,561 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 66 [2024-11-13 13:48:51,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:51,563 INFO L225 Difference]: With dead ends: 1265 [2024-11-13 13:48:51,563 INFO L226 Difference]: Without dead ends: 1265 [2024-11-13 13:48:51,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:48:51,564 INFO L432 NwaCegarLoop]: 1135 mSDtfsCounter, 1 mSDsluCounter, 1889 mSDsCounter, 0 mSdLazyCounter, 1520 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3024 SdHoareTripleChecker+Invalid, 1521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:51,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3024 Invalid, 1521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1520 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-13 13:48:51,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2024-11-13 13:48:51,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1265. [2024-11-13 13:48:51,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 792 states have (on average 1.8232323232323233) internal successors, (1444), 1253 states have internal predecessors, (1444), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-13 13:48:51,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 1490 transitions. [2024-11-13 13:48:51,580 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 1490 transitions. Word has length 66 [2024-11-13 13:48:51,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:51,580 INFO L471 AbstractCegarLoop]: Abstraction has 1265 states and 1490 transitions. [2024-11-13 13:48:51,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:48:51,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 1490 transitions. [2024-11-13 13:48:51,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-13 13:48:51,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:51,581 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:48:51,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-13 13:48:51,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:51,782 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-13 13:48:51,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:51,782 INFO L85 PathProgramCache]: Analyzing trace with hash -973464157, now seen corresponding path program 1 times [2024-11-13 13:48:51,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:48:51,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [342166802] [2024-11-13 13:48:51,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:51,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:51,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:48:51,785 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:48:51,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-13 13:48:52,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:52,107 INFO L255 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 13:48:52,110 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:48:52,118 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 [2024-11-13 13:48:52,220 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 [2024-11-13 13:48:52,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:48:52,238 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:48:52,238 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:48:52,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [342166802] [2024-11-13 13:48:52,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [342166802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:52,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:52,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 13:48:52,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475189252] [2024-11-13 13:48:52,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:52,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:48:52,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:48:52,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:48:52,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:48:52,241 INFO L87 Difference]: Start difference. First operand 1265 states and 1490 transitions. Second operand has 7 states, 5 states have (on average 14.4) internal successors, (72), 6 states have internal predecessors, (72), 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) [2024-11-13 13:48:57,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:57,346 INFO L93 Difference]: Finished difference Result 1277 states and 1505 transitions. [2024-11-13 13:48:57,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 13:48:57,346 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 14.4) internal successors, (72), 6 states have internal predecessors, (72), 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 74 [2024-11-13 13:48:57,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:57,349 INFO L225 Difference]: With dead ends: 1277 [2024-11-13 13:48:57,349 INFO L226 Difference]: Without dead ends: 1277 [2024-11-13 13:48:57,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:48:57,350 INFO L432 NwaCegarLoop]: 1057 mSDtfsCounter, 61 mSDsluCounter, 3368 mSDsCounter, 0 mSdLazyCounter, 2322 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 4425 SdHoareTripleChecker+Invalid, 2329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:57,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 4425 Invalid, 2329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2322 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-13 13:48:57,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2024-11-13 13:48:57,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1271. [2024-11-13 13:48:57,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1271 states, 797 states have (on average 1.820577164366374) internal successors, (1451), 1258 states have internal predecessors, (1451), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (25), 9 states have call predecessors, (25), 22 states have call successors, (25) [2024-11-13 13:48:57,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1271 states to 1271 states and 1500 transitions. [2024-11-13 13:48:57,369 INFO L78 Accepts]: Start accepts. Automaton has 1271 states and 1500 transitions. Word has length 74 [2024-11-13 13:48:57,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:57,370 INFO L471 AbstractCegarLoop]: Abstraction has 1271 states and 1500 transitions. [2024-11-13 13:48:57,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 14.4) internal successors, (72), 6 states have internal predecessors, (72), 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) [2024-11-13 13:48:57,370 INFO L276 IsEmpty]: Start isEmpty. Operand 1271 states and 1500 transitions. [2024-11-13 13:48:57,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-13 13:48:57,371 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:57,371 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:48:57,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-13 13:48:57,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:57,572 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-13 13:48:57,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:57,573 INFO L85 PathProgramCache]: Analyzing trace with hash -973464156, now seen corresponding path program 1 times [2024-11-13 13:48:57,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:48:57,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [956992589] [2024-11-13 13:48:57,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:57,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:57,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:48:57,576 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:48:57,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-13 13:48:57,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:57,885 INFO L255 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 13:48:57,887 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:48:57,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:48:57,914 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:48:57,914 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:48:57,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956992589] [2024-11-13 13:48:57,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [956992589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:48:57,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:48:57,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:48:57,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316593967] [2024-11-13 13:48:57,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:48:57,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:48:57,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:48:57,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:48:57,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:48:57,919 INFO L87 Difference]: Start difference. First operand 1271 states and 1500 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2024-11-13 13:48:57,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:57,988 INFO L93 Difference]: Finished difference Result 1268 states and 1494 transitions. [2024-11-13 13:48:57,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:48:57,989 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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 74 [2024-11-13 13:48:57,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:57,995 INFO L225 Difference]: With dead ends: 1268 [2024-11-13 13:48:57,995 INFO L226 Difference]: Without dead ends: 1268 [2024-11-13 13:48:57,995 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:48:57,996 INFO L432 NwaCegarLoop]: 1135 mSDtfsCounter, 0 mSDsluCounter, 2265 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3400 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 [2024-11-13 13:48:57,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3400 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:48:57,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states. [2024-11-13 13:48:58,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 1268. [2024-11-13 13:48:58,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 794 states have (on average 1.8224181360201512) internal successors, (1447), 1256 states have internal predecessors, (1447), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-13 13:48:58,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1494 transitions. [2024-11-13 13:48:58,025 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1494 transitions. Word has length 74 [2024-11-13 13:48:58,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:58,025 INFO L471 AbstractCegarLoop]: Abstraction has 1268 states and 1494 transitions. [2024-11-13 13:48:58,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2024-11-13 13:48:58,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1494 transitions. [2024-11-13 13:48:58,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-13 13:48:58,028 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:58,028 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:48:58,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-13 13:48:58,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:58,229 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-13 13:48:58,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:58,229 INFO L85 PathProgramCache]: Analyzing trace with hash 550796163, now seen corresponding path program 1 times [2024-11-13 13:48:58,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:48:58,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [515527879] [2024-11-13 13:48:58,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:58,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:58,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:48:58,231 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:48:58,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-13 13:48:58,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:58,567 INFO L255 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 13:48:58,570 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:48:58,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:48:58,603 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:48:58,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:48:58,694 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:48:58,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515527879] [2024-11-13 13:48:58,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515527879] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:48:58,694 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:48:58,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-13 13:48:58,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097185566] [2024-11-13 13:48:58,695 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 13:48:58,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 13:48:58,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:48:58,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 13:48:58,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:48:58,697 INFO L87 Difference]: Start difference. First operand 1268 states and 1494 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 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) [2024-11-13 13:48:58,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:48:58,932 INFO L93 Difference]: Finished difference Result 1280 states and 1511 transitions. [2024-11-13 13:48:58,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 13:48:58,934 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 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 75 [2024-11-13 13:48:58,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:48:58,937 INFO L225 Difference]: With dead ends: 1280 [2024-11-13 13:48:58,937 INFO L226 Difference]: Without dead ends: 1280 [2024-11-13 13:48:58,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:48:58,938 INFO L432 NwaCegarLoop]: 1135 mSDtfsCounter, 8 mSDsluCounter, 4527 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5662 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:48:58,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5662 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:48:58,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1280 states. [2024-11-13 13:48:58,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1280 to 1278. [2024-11-13 13:48:58,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1278 states, 803 states have (on average 1.8206724782067247) internal successors, (1462), 1265 states have internal predecessors, (1462), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-13 13:48:58,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 1509 transitions. [2024-11-13 13:48:58,962 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 1509 transitions. Word has length 75 [2024-11-13 13:48:58,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:48:58,962 INFO L471 AbstractCegarLoop]: Abstraction has 1278 states and 1509 transitions. [2024-11-13 13:48:58,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 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) [2024-11-13 13:48:58,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 1509 transitions. [2024-11-13 13:48:58,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-13 13:48:58,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:48:58,963 INFO L215 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] [2024-11-13 13:48:58,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-13 13:48:59,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:59,164 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-13 13:48:59,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:48:59,165 INFO L85 PathProgramCache]: Analyzing trace with hash -661482077, now seen corresponding path program 2 times [2024-11-13 13:48:59,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:48:59,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [141046739] [2024-11-13 13:48:59,165 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 13:48:59,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:59,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:48:59,168 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:48:59,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-13 13:49:11,250 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 13:49:11,250 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:49:11,263 INFO L255 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 13:49:11,266 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:49:11,394 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 13:49:11,394 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 [2024-11-13 13:49:11,414 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 [2024-11-13 13:49:11,660 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 13:49:11,660 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 [2024-11-13 13:49:11,708 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 [2024-11-13 13:49:11,729 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 13:49:11,729 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:49:11,850 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2024-11-13 13:49:11,851 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 [2024-11-13 13:49:11,861 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1241 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_#t~mem36#1.base| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_1241) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) is different from false [2024-11-13 13:49:11,863 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:49:11,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141046739] [2024-11-13 13:49:11,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141046739] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:49:11,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [8981121] [2024-11-13 13:49:11,864 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 13:49:11,864 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 13:49:11,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 [2024-11-13 13:49:11,866 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 13:49:11,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2024-11-13 13:49:13,440 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 13:49:13,440 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:49:13,476 INFO L255 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 13:49:13,478 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:49:13,658 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:49:13,659 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:49:13,995 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:49:13,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [8981121] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:49:13,995 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:49:13,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 24 [2024-11-13 13:49:13,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653403695] [2024-11-13 13:49:13,995 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:49:13,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-13 13:49:13,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:49:13,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-13 13:49:13,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=513, Unknown=1, NotChecked=46, Total=650 [2024-11-13 13:49:13,997 INFO L87 Difference]: Start difference. First operand 1278 states and 1509 transitions. Second operand has 24 states, 23 states have (on average 6.173913043478261) internal successors, (142), 23 states have internal predecessors, (142), 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) [2024-11-13 13:49:27,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:49:27,018 INFO L93 Difference]: Finished difference Result 1302 states and 1540 transitions. [2024-11-13 13:49:27,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-13 13:49:27,019 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.173913043478261) internal successors, (142), 23 states have internal predecessors, (142), 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 78 [2024-11-13 13:49:27,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:49:27,022 INFO L225 Difference]: With dead ends: 1302 [2024-11-13 13:49:27,022 INFO L226 Difference]: Without dead ends: 1298 [2024-11-13 13:49:27,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=413, Invalid=2242, Unknown=1, NotChecked=100, Total=2756 [2024-11-13 13:49:27,023 INFO L432 NwaCegarLoop]: 684 mSDtfsCounter, 873 mSDsluCounter, 8476 mSDsCounter, 0 mSdLazyCounter, 7370 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 9160 SdHoareTripleChecker+Invalid, 7393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 7370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2024-11-13 13:49:27,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [894 Valid, 9160 Invalid, 7393 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 7370 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time] [2024-11-13 13:49:27,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1298 states. [2024-11-13 13:49:27,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1298 to 1286. [2024-11-13 13:49:27,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 812 states have (on average 1.814039408866995) internal successors, (1473), 1273 states have internal predecessors, (1473), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-13 13:49:27,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 1520 transitions. [2024-11-13 13:49:27,043 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 1520 transitions. Word has length 78 [2024-11-13 13:49:27,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:49:27,043 INFO L471 AbstractCegarLoop]: Abstraction has 1286 states and 1520 transitions. [2024-11-13 13:49:27,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.173913043478261) internal successors, (142), 23 states have internal predecessors, (142), 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) [2024-11-13 13:49:27,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 1520 transitions. [2024-11-13 13:49:27,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-13 13:49:27,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:49:27,044 INFO L215 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] [2024-11-13 13:49:27,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-13 13:49:27,250 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2024-11-13 13:49:27,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt [2024-11-13 13:49:27,445 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-13 13:49:27,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:49:27,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1677801052, now seen corresponding path program 1 times [2024-11-13 13:49:27,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:49:27,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1896451683] [2024-11-13 13:49:27,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:49:27,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:49:27,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:49:27,447 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:49:27,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-13 13:49:27,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:49:27,812 INFO L255 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-13 13:49:27,815 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:49:27,990 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:49:27,990 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:49:28,666 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:49:28,666 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:49:28,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896451683] [2024-11-13 13:49:28,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896451683] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:49:28,667 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:49:28,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-11-13 13:49:28,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8742603] [2024-11-13 13:49:28,667 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 13:49:28,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-13 13:49:28,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:49:28,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-13 13:49:28,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-11-13 13:49:28,668 INFO L87 Difference]: Start difference. First operand 1286 states and 1520 transitions. Second operand has 26 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 26 states have internal predecessors, (95), 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) [2024-11-13 13:49:30,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:49:30,987 INFO L93 Difference]: Finished difference Result 1310 states and 1559 transitions. [2024-11-13 13:49:30,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-13 13:49:30,989 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 26 states have internal predecessors, (95), 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 84 [2024-11-13 13:49:30,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:49:30,992 INFO L225 Difference]: With dead ends: 1310 [2024-11-13 13:49:30,992 INFO L226 Difference]: Without dead ends: 1304 [2024-11-13 13:49:31,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-11-13 13:49:31,008 INFO L432 NwaCegarLoop]: 1135 mSDtfsCounter, 15 mSDsluCounter, 12453 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 13588 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:49:31,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 13588 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 13:49:31,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2024-11-13 13:49:31,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1304. [2024-11-13 13:49:31,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1304 states, 830 states have (on average 1.8024096385542168) internal successors, (1496), 1291 states have internal predecessors, (1496), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-13 13:49:31,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 1543 transitions. [2024-11-13 13:49:31,031 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 1543 transitions. Word has length 84 [2024-11-13 13:49:31,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:49:31,032 INFO L471 AbstractCegarLoop]: Abstraction has 1304 states and 1543 transitions. [2024-11-13 13:49:31,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 26 states have internal predecessors, (95), 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) [2024-11-13 13:49:31,032 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 1543 transitions. [2024-11-13 13:49:31,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-13 13:49:31,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:49:31,033 INFO L215 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] [2024-11-13 13:49:31,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-13 13:49:31,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:49:31,233 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-13 13:49:31,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:49:31,234 INFO L85 PathProgramCache]: Analyzing trace with hash -2127416924, now seen corresponding path program 2 times [2024-11-13 13:49:31,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:49:31,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [386944015] [2024-11-13 13:49:31,234 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 13:49:31,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:49:31,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:49:31,236 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:49:31,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-13 13:49:55,949 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 13:49:55,949 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:49:55,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-11-13 13:49:55,976 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:49:56,107 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 13:49:56,108 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 [2024-11-13 13:49:56,115 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 [2024-11-13 13:49:56,141 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 [2024-11-13 13:49:56,147 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 [2024-11-13 13:49:56,264 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 [2024-11-13 13:49:56,270 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 [2024-11-13 13:49:56,784 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 13:49:56,784 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 [2024-11-13 13:49:56,795 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 [2024-11-13 13:49:56,851 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 [2024-11-13 13:49:56,857 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 [2024-11-13 13:49:56,888 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-13 13:49:56,889 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:49:57,427 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_1867 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_1867) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd (_ bv20 32) .cse0)))) (forall ((v_ArrVal_1867 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1868 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv20 32) (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_1867) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_1868) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 13:49:57,432 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:49:57,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386944015] [2024-11-13 13:49:57,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386944015] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:49:57,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1881151949] [2024-11-13 13:49:57,432 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 13:49:57,432 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 13:49:57,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 [2024-11-13 13:49:57,434 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 13:49:57,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2024-11-13 13:49:59,038 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 13:49:59,038 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:49:59,074 INFO L255 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 13:49:59,077 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:50:00,025 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:50:00,026 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:50:02,264 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:50:02,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1881151949] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:50:02,264 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:50:02,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 26, 26] total 58 [2024-11-13 13:50:02,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037693385] [2024-11-13 13:50:02,265 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:50:02,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-11-13 13:50:02,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:50:02,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-11-13 13:50:02,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=699, Invalid=2844, Unknown=1, NotChecked=116, Total=3660 [2024-11-13 13:50:02,267 INFO L87 Difference]: Start difference. First operand 1304 states and 1543 transitions. Second operand has 58 states, 57 states have (on average 3.1228070175438596) internal successors, (178), 58 states have internal predecessors, (178), 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) [2024-11-13 13:50:40,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:50:40,572 INFO L93 Difference]: Finished difference Result 1355 states and 1624 transitions. [2024-11-13 13:50:40,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2024-11-13 13:50:40,577 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 57 states have (on average 3.1228070175438596) internal successors, (178), 58 states have internal predecessors, (178), 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 96 [2024-11-13 13:50:40,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:50:40,585 INFO L225 Difference]: With dead ends: 1355 [2024-11-13 13:50:40,585 INFO L226 Difference]: Without dead ends: 1347 [2024-11-13 13:50:40,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 231 SyntacticMatches, 1 SemanticMatches, 134 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3088 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=3106, Invalid=14987, Unknown=1, NotChecked=266, Total=18360 [2024-11-13 13:50:40,592 INFO L432 NwaCegarLoop]: 754 mSDtfsCounter, 835 mSDsluCounter, 20390 mSDsCounter, 0 mSdLazyCounter, 15795 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 21144 SdHoareTripleChecker+Invalid, 15843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 15795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:50:40,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [840 Valid, 21144 Invalid, 15843 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [48 Valid, 15795 Invalid, 0 Unknown, 0 Unchecked, 29.5s Time] [2024-11-13 13:50:40,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2024-11-13 13:50:40,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 1337. [2024-11-13 13:50:40,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1337 states, 864 states have (on average 1.7789351851851851) internal successors, (1537), 1324 states have internal predecessors, (1537), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-13 13:50:40,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1584 transitions. [2024-11-13 13:50:40,617 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1584 transitions. Word has length 96 [2024-11-13 13:50:40,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:50:40,617 INFO L471 AbstractCegarLoop]: Abstraction has 1337 states and 1584 transitions. [2024-11-13 13:50:40,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 57 states have (on average 3.1228070175438596) internal successors, (178), 58 states have internal predecessors, (178), 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) [2024-11-13 13:50:40,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1584 transitions. [2024-11-13 13:50:40,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-13 13:50:40,619 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:50:40,620 INFO L215 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] [2024-11-13 13:50:40,649 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-13 13:50:40,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2024-11-13 13:50:41,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt [2024-11-13 13:50:41,020 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr84REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-13 13:50:41,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:50:41,021 INFO L85 PathProgramCache]: Analyzing trace with hash 2120935930, now seen corresponding path program 1 times [2024-11-13 13:50:41,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:50:41,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [25034355] [2024-11-13 13:50:41,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:41,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:50:41,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:50:41,025 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:50:41,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-13 13:50:41,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:41,555 INFO L255 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-13 13:50:41,562 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:50:41,565 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 [2024-11-13 13:50:41,691 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 13:50:41,691 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 [2024-11-13 13:50:41,730 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 [2024-11-13 13:50:42,284 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 13:50:42,284 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 [2024-11-13 13:50:42,380 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 13:50:42,380 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 [2024-11-13 13:50:42,396 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 [2024-11-13 13:50:42,414 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 13:50:42,415 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:50:42,454 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2527 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_2527) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (_ bv1 1)))) is different from false [2024-11-13 13:50:42,462 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2527 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_2527) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-13 13:50:42,886 INFO L349 Elim1Store]: treesize reduction 7, result has 77.4 percent of original size [2024-11-13 13:50:42,887 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 [2024-11-13 13:50:42,906 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2573 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2527 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_#t~mem36#1.base| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_2573))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2527)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) is different from false [2024-11-13 13:50:42,909 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:50:42,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25034355] [2024-11-13 13:50:42,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25034355] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:50:42,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [210647399] [2024-11-13 13:50:42,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:42,909 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 13:50:42,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 [2024-11-13 13:50:42,911 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 13:50:42,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2024-11-13 13:50:46,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:46,215 INFO L255 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-11-13 13:50:46,223 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:50:46,228 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 [2024-11-13 13:50:46,355 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-13 13:50:46,355 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 [2024-11-13 13:50:46,422 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 [2024-11-13 13:50:46,586 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 [2024-11-13 13:50:47,733 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 13:50:47,734 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 [2024-11-13 13:50:47,899 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 13:50:47,899 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 [2024-11-13 13:50:47,932 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 [2024-11-13 13:50:48,002 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 13:50:48,002 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:50:48,083 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2996 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_2996) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (_ bv1 1)))) is different from false [2024-11-13 13:50:48,493 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2996 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3042 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3042))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2996)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 13:50:48,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [210647399] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:50:48,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:50:48,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 18 [2024-11-13 13:50:48,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724541882] [2024-11-13 13:50:48,496 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 13:50:48,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-13 13:50:48,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:50:48,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-13 13:50:48,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=345, Unknown=15, NotChecked=210, Total=650 [2024-11-13 13:50:48,497 INFO L87 Difference]: Start difference. First operand 1337 states and 1584 transitions. Second operand has 19 states, 16 states have (on average 5.9375) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-11-13 13:51:01,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:51:01,158 INFO L93 Difference]: Finished difference Result 1346 states and 1593 transitions. [2024-11-13 13:51:01,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 13:51:01,158 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 5.9375) internal successors, (95), 18 states have internal predecessors, (95), 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 121 [2024-11-13 13:51:01,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:51:01,161 INFO L225 Difference]: With dead ends: 1346 [2024-11-13 13:51:01,162 INFO L226 Difference]: Without dead ends: 1346 [2024-11-13 13:51:01,162 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 229 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=101, Invalid=455, Unknown=16, NotChecked=240, Total=812 [2024-11-13 13:51:01,162 INFO L432 NwaCegarLoop]: 683 mSDtfsCounter, 811 mSDsluCounter, 5906 mSDsCounter, 0 mSdLazyCounter, 6262 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 6589 SdHoareTripleChecker+Invalid, 6275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 6262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:51:01,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [831 Valid, 6589 Invalid, 6275 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 6262 Invalid, 0 Unknown, 0 Unchecked, 12.4s Time] [2024-11-13 13:51:01,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1346 states. [2024-11-13 13:51:01,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 1336. [2024-11-13 13:51:01,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 864 states have (on average 1.7777777777777777) internal successors, (1536), 1323 states have internal predecessors, (1536), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-13 13:51:01,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1583 transitions. [2024-11-13 13:51:01,180 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1583 transitions. Word has length 121 [2024-11-13 13:51:01,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:51:01,181 INFO L471 AbstractCegarLoop]: Abstraction has 1336 states and 1583 transitions. [2024-11-13 13:51:01,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 5.9375) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-11-13 13:51:01,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1583 transitions. [2024-11-13 13:51:01,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-13 13:51:01,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:51:01,182 INFO L215 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] [2024-11-13 13:51:01,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-13 13:51:01,398 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2024-11-13 13:51:01,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt [2024-11-13 13:51:01,583 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr85REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-13 13:51:01,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:51:01,583 INFO L85 PathProgramCache]: Analyzing trace with hash 2120935931, now seen corresponding path program 1 times [2024-11-13 13:51:01,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:51:01,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [706528798] [2024-11-13 13:51:01,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:51:01,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:51:01,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:51:01,585 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:51:01,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-13 13:51:02,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:51:02,168 INFO L255 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 111 conjuncts are in the unsatisfiable core [2024-11-13 13:51:02,181 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:51:02,184 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 [2024-11-13 13:51:02,286 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 [2024-11-13 13:51:02,298 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 13:51:02,298 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 [2024-11-13 13:51:02,318 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 [2024-11-13 13:51:02,322 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 [2024-11-13 13:51:02,418 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 [2024-11-13 13:51:02,423 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 [2024-11-13 13:51:03,273 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 13:51:03,274 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 [2024-11-13 13:51:03,289 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 [2024-11-13 13:51:03,414 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 13:51:03,414 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 62 treesize of output 57 [2024-11-13 13:51:03,419 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 [2024-11-13 13:51:03,455 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 [2024-11-13 13:51:03,462 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 [2024-11-13 13:51:03,496 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 13:51:03,497 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:51:03,687 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_3512 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_3512) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv4 32) .cse0) (bvadd (_ bv8 32) .cse0)))) (forall ((v_ArrVal_3512 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3511 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_3512) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_3511) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 13:51:03,722 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$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_3512 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3511 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_3512) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_3511) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_3512 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_3512) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv4 32) .cse2) (bvadd (_ bv8 32) .cse2))))))) is different from false [2024-11-13 13:51:05,207 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_3604 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3603 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3512 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3511 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3604))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3603) .cse0 v_ArrVal_3512) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_3511) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_3604 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3603 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3512 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3603) (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3604) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3512) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv4 32) .cse3) (bvadd (_ bv8 32) .cse3)))))) is different from false [2024-11-13 13:51:05,214 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:51:05,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706528798] [2024-11-13 13:51:05,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706528798] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:51:05,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [447726868] [2024-11-13 13:51:05,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:51:05,214 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 13:51:05,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 [2024-11-13 13:51:05,218 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 13:51:05,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2024-11-13 13:52:28,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:52:28,801 INFO L255 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 112 conjuncts are in the unsatisfiable core [2024-11-13 13:52:28,813 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:52:28,816 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 [2024-11-13 13:52:28,948 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 13:52:28,948 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 [2024-11-13 13:52:28,954 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 [2024-11-13 13:52:28,964 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 [2024-11-13 13:52:28,969 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 [2024-11-13 13:52:29,051 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 [2024-11-13 13:52:29,056 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 [2024-11-13 13:52:29,995 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 13:52:29,995 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 [2024-11-13 13:52:30,003 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 [2024-11-13 13:52:30,081 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 13:52:30,081 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 [2024-11-13 13:52:30,087 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 [2024-11-13 13:52:30,116 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 [2024-11-13 13:52:30,124 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 [2024-11-13 13:52:30,129 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 13:52:30,129 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:52:30,182 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_4074 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4073 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_4073) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_4074) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_4073 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_4073) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv4 32) .cse1) (bvadd (_ bv8 32) .cse1)))))) is different from false [2024-11-13 13:52:30,209 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$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_4073 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_4073) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv4 32) .cse0) (bvadd (_ bv8 32) .cse0)))) (forall ((v_ArrVal_4074 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4073 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_4073) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| .cse1 v_ArrVal_4074) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-13 13:52:31,688 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_4073 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4166 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4165 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4165) (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4166) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4073) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv4 32) .cse0) (bvadd (_ bv8 32) .cse0)))) (forall ((v_ArrVal_4074 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4073 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4166 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4165 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4166))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4165) .cse2 v_ArrVal_4073) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_4074) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) is different from false [2024-11-13 13:52:31,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [447726868] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:52:31,695 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:52:31,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2024-11-13 13:52:31,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892833420] [2024-11-13 13:52:31,696 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 13:52:31,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 13:52:31,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:52:31,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 13:52:31,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=110, Unknown=6, NotChecked=150, Total=306 [2024-11-13 13:52:31,696 INFO L87 Difference]: Start difference. First operand 1336 states and 1583 transitions. Second operand has 10 states, 8 states have (on average 9.625) internal successors, (77), 10 states have internal predecessors, (77), 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) [2024-11-13 13:52:41,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:52:41,250 INFO L93 Difference]: Finished difference Result 1343 states and 1590 transitions. [2024-11-13 13:52:41,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 13:52:41,250 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 9.625) internal successors, (77), 10 states have internal predecessors, (77), 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 121 [2024-11-13 13:52:41,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:52:41,252 INFO L225 Difference]: With dead ends: 1343 [2024-11-13 13:52:41,253 INFO L226 Difference]: Without dead ends: 1343 [2024-11-13 13:52:41,253 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 235 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=71, Invalid=219, Unknown=6, NotChecked=210, Total=506 [2024-11-13 13:52:41,253 INFO L432 NwaCegarLoop]: 754 mSDtfsCounter, 759 mSDsluCounter, 2411 mSDsCounter, 0 mSdLazyCounter, 4023 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 3165 SdHoareTripleChecker+Invalid, 4030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 4023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:52:41,253 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [763 Valid, 3165 Invalid, 4030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 4023 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2024-11-13 13:52:41,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1343 states. [2024-11-13 13:52:41,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1343 to 1335. [2024-11-13 13:52:41,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1335 states, 864 states have (on average 1.7766203703703705) internal successors, (1535), 1322 states have internal predecessors, (1535), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-13 13:52:41,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 1582 transitions. [2024-11-13 13:52:41,271 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 1582 transitions. Word has length 121 [2024-11-13 13:52:41,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:52:41,271 INFO L471 AbstractCegarLoop]: Abstraction has 1335 states and 1582 transitions. [2024-11-13 13:52:41,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 9.625) internal successors, (77), 10 states have internal predecessors, (77), 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) [2024-11-13 13:52:41,271 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 1582 transitions. [2024-11-13 13:52:41,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-13 13:52:41,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:52:41,272 INFO L215 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] [2024-11-13 13:52:41,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-13 13:52:41,509 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2024-11-13 13:52:41,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt [2024-11-13 13:52:41,673 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr88REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-13 13:52:41,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:52:41,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1538813290, now seen corresponding path program 1 times [2024-11-13 13:52:41,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:52:41,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [426886276] [2024-11-13 13:52:41,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:52:41,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:52:41,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:52:41,677 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:52:41,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-13 13:52:42,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:52:42,320 INFO L255 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-11-13 13:52:42,329 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:52:42,482 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 13:52:42,483 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 [2024-11-13 13:52:42,494 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 [2024-11-13 13:52:42,833 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 13:52:42,834 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 [2024-11-13 13:52:42,893 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 13:52:42,893 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 31 treesize of output 32 [2024-11-13 13:52:42,945 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 13:52:42,945 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 [2024-11-13 13:52:42,987 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 [2024-11-13 13:52:43,008 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 13:52:43,009 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:52:43,055 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2024-11-13 13:52:43,056 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 [2024-11-13 13:52:43,062 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4603 (Array (_ BitVec 32) (_ BitVec 32)))) (= (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_4603) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)) |c_ULTIMATE.start_main_#t~mem39#1.base|)) is different from false [2024-11-13 13:52:43,073 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4603 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_4603) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse0)))) is different from false [2024-11-13 13:52:43,090 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4603 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4602 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_4602)) (.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_4603) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) .cse1)))) is different from false [2024-11-13 13:52:43,102 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4603 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4602 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_4602))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= (select (select (store .cse0 .cse1 v_ArrVal_4603) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) .cse1))))) is different from false [2024-11-13 13:52:43,584 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4649 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4603 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4602 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (let ((.cse3 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4649))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_4602)))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (store .cse1 .cse0 v_ArrVal_4603) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) is different from false [2024-11-13 13:52:43,586 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:52:43,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426886276] [2024-11-13 13:52:43,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426886276] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:52:43,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1667123632] [2024-11-13 13:52:43,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:52:43,587 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 13:52:43,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 [2024-11-13 13:52:43,589 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 13:52:43,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2024-11-13 13:53:01,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:53:01,154 INFO L255 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-11-13 13:53:01,162 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:53:01,167 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 [2024-11-13 13:53:01,301 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-13 13:53:01,301 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 [2024-11-13 13:53:01,343 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 [2024-11-13 13:53:01,495 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 [2024-11-13 13:53:02,497 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 13:53:02,498 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 [2024-11-13 13:53:02,651 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 13:53:02,652 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 [2024-11-13 13:53:02,752 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 13:53:02,752 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 [2024-11-13 13:53:02,777 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 [2024-11-13 13:53:02,830 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 13:53:02,830 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:53:02,845 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5088 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_5088) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) is different from false [2024-11-13 13:53:02,854 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5088 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_5088) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-13 13:53:02,867 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5087 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5088 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_5087))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5088)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 13:53:02,877 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5087 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5088 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5087))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5088)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (_ bv0 1))) is different from false [2024-11-13 13:53:03,305 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5087 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5088 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5134 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5134))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5087)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5088)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 13:53:03,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1667123632] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:53:03,307 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:53:03,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 19 [2024-11-13 13:53:03,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932145178] [2024-11-13 13:53:03,307 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 13:53:03,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-13 13:53:03,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:53:03,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-13 13:53:03,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=356, Unknown=10, NotChecked=470, Total=930 [2024-11-13 13:53:03,309 INFO L87 Difference]: Start difference. First operand 1335 states and 1582 transitions. Second operand has 20 states, 17 states have (on average 6.176470588235294) internal successors, (105), 20 states have internal predecessors, (105), 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) [2024-11-13 13:53:16,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:53:16,754 INFO L93 Difference]: Finished difference Result 1344 states and 1591 transitions. [2024-11-13 13:53:16,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 13:53:16,755 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 6.176470588235294) internal successors, (105), 20 states have internal predecessors, (105), 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 124 [2024-11-13 13:53:16,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:53:16,757 INFO L225 Difference]: With dead ends: 1344 [2024-11-13 13:53:16,757 INFO L226 Difference]: Without dead ends: 1344 [2024-11-13 13:53:16,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 236 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=103, Invalid=389, Unknown=10, NotChecked=490, Total=992 [2024-11-13 13:53:16,758 INFO L432 NwaCegarLoop]: 684 mSDtfsCounter, 804 mSDsluCounter, 7588 mSDsCounter, 0 mSdLazyCounter, 7231 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 8272 SdHoareTripleChecker+Invalid, 7242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 7231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:53:16,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [824 Valid, 8272 Invalid, 7242 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 7231 Invalid, 0 Unknown, 0 Unchecked, 13.2s Time] [2024-11-13 13:53:16,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states. [2024-11-13 13:53:16,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 1334. [2024-11-13 13:53:16,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1334 states, 864 states have (on average 1.775462962962963) internal successors, (1534), 1321 states have internal predecessors, (1534), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-13 13:53:16,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1334 states to 1334 states and 1581 transitions. [2024-11-13 13:53:16,774 INFO L78 Accepts]: Start accepts. Automaton has 1334 states and 1581 transitions. Word has length 124 [2024-11-13 13:53:16,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:53:16,774 INFO L471 AbstractCegarLoop]: Abstraction has 1334 states and 1581 transitions. [2024-11-13 13:53:16,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 6.176470588235294) internal successors, (105), 20 states have internal predecessors, (105), 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) [2024-11-13 13:53:16,775 INFO L276 IsEmpty]: Start isEmpty. Operand 1334 states and 1581 transitions. [2024-11-13 13:53:16,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-13 13:53:16,775 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:53:16,776 INFO L215 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] [2024-11-13 13:53:16,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-13 13:53:17,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2024-11-13 13:53:17,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt [2024-11-13 13:53:17,177 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr89REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-13 13:53:17,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:53:17,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1538813291, now seen corresponding path program 1 times [2024-11-13 13:53:17,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:53:17,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [214145822] [2024-11-13 13:53:17,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:53:17,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:53:17,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:53:17,179 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:53:17,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-13 13:53:17,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:53:17,877 INFO L255 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 114 conjuncts are in the unsatisfiable core [2024-11-13 13:53:17,887 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:53:17,893 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 [2024-11-13 13:53:18,002 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 [2024-11-13 13:53:18,013 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 13:53:18,014 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 [2024-11-13 13:53:18,034 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 [2024-11-13 13:53:18,051 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 [2024-11-13 13:53:18,176 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 [2024-11-13 13:53:18,182 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 [2024-11-13 13:53:18,888 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 13:53:18,889 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 [2024-11-13 13:53:18,899 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 [2024-11-13 13:53:18,997 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 13:53:18,997 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 [2024-11-13 13:53:19,008 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 [2024-11-13 13:53:19,095 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 13:53:19,095 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 [2024-11-13 13:53:19,102 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 [2024-11-13 13:53:19,138 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 [2024-11-13 13:53:19,145 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 [2024-11-13 13:53:19,184 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 13:53:19,184 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:53:19,344 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5620 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5621 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_5621) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_5620) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_5621 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_5621) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv8 32) .cse1) (bvadd (_ bv12 32) .cse1)))))) is different from false [2024-11-13 13:53:19,379 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$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_5620 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5621 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_5621) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_5620) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_5621 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_5621) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse2) (bvadd (_ bv12 32) .cse2))))))) is different from false [2024-11-13 13:53:19,477 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5618 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5619 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5620 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5621 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_5619))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_5618) .cse0 v_ArrVal_5621) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_5620) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_5618 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5619 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5621 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_5618) (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_5619) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5621) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse3) (bvadd (_ bv12 32) .cse3)))))) is different from false [2024-11-13 13:53:19,613 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$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_5618 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5619 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5621 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_5618) (select (select (store |c_#memory_$Pointer$#2.base| .cse1 v_ArrVal_5619) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_5621) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_5618 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5619 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5620 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5621 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#2.base| .cse1 v_ArrVal_5619))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_5618) .cse3 v_ArrVal_5621) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse4 .cse3 v_ArrVal_5620) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))))) is different from false [2024-11-13 13:53:21,427 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5618 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5619 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5712 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5713 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5621 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5713))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5712) .cse1 v_ArrVal_5618) (select (select (store .cse2 .cse1 v_ArrVal_5619) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_5621))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd .cse0 (_ bv8 32)) (bvadd .cse0 (_ bv12 32))))) (forall ((v_ArrVal_5618 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5619 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5712 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5713 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5620 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5621 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5713))) (let ((.cse4 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse6 (store .cse7 .cse4 v_ArrVal_5619))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (select (select (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5712) .cse4 v_ArrVal_5618) .cse5 v_ArrVal_5621) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) (_ bv12 32)) (select |c_#length| (select (select (store .cse6 .cse5 v_ArrVal_5620) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) is different from false [2024-11-13 13:53:21,439 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:53:21,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214145822] [2024-11-13 13:53:21,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [214145822] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:53:21,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1502634378] [2024-11-13 13:53:21,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:53:21,439 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 13:53:21,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 [2024-11-13 13:53:21,441 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 13:53:21,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2024-11-13 13:53:43,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:53:43,445 INFO L255 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 116 conjuncts are in the unsatisfiable core [2024-11-13 13:53:43,457 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:53:43,464 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 [2024-11-13 13:53:43,777 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 13:53:43,777 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 [2024-11-13 13:53:43,787 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 [2024-11-13 13:53:43,801 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 [2024-11-13 13:53:43,818 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 [2024-11-13 13:53:43,910 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 [2024-11-13 13:53:43,916 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 [2024-11-13 13:53:45,101 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 13:53:45,101 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 [2024-11-13 13:53:45,108 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 [2024-11-13 13:53:45,217 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 13:53:45,218 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 [2024-11-13 13:53:45,225 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 [2024-11-13 13:53:45,315 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 13:53:45,315 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 [2024-11-13 13:53:45,322 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 [2024-11-13 13:53:45,362 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 [2024-11-13 13:53:45,369 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 [2024-11-13 13:53:45,378 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 13:53:45,379 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:53:45,624 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$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_6199 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_6199) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_6199 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6200 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_6199) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| .cse1 v_ArrVal_6200) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-13 13:53:45,700 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6197 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6198 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6199 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_6198) (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_6197) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6199) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_6197 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6198 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6199 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6200 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_6197))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_6198) .cse2 v_ArrVal_6199) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_6200) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) is different from false [2024-11-13 13:53:45,779 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$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_6197 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6198 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6199 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_6198) (select (select (store |c_#memory_$Pointer$#2.base| .cse1 v_ArrVal_6197) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6199) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_6197 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6198 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6199 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6200 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#2.base| .cse1 v_ArrVal_6197))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_6198) .cse3 v_ArrVal_6199) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse4 .cse3 v_ArrVal_6200) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))))) is different from false [2024-11-13 13:53:50,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1502634378] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:53:50,866 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:53:50,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2024-11-13 13:53:50,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434873216] [2024-11-13 13:53:50,867 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 13:53:50,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 13:53:50,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:53:50,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 13:53:50,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=164, Unknown=24, NotChecked=264, Total=506 [2024-11-13 13:53:50,868 INFO L87 Difference]: Start difference. First operand 1334 states and 1581 transitions. Second operand has 11 states, 9 states have (on average 8.88888888888889) internal successors, (80), 11 states have internal predecessors, (80), 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) [2024-11-13 13:54:18,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:54:18,345 INFO L93 Difference]: Finished difference Result 1341 states and 1588 transitions. [2024-11-13 13:54:18,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 13:54:18,345 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 8.88888888888889) internal successors, (80), 11 states have internal predecessors, (80), 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 124 [2024-11-13 13:54:18,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:54:18,348 INFO L225 Difference]: With dead ends: 1341 [2024-11-13 13:54:18,348 INFO L226 Difference]: Without dead ends: 1341 [2024-11-13 13:54:18,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 242 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=94, Invalid=331, Unknown=27, NotChecked=360, Total=812 [2024-11-13 13:54:18,349 INFO L432 NwaCegarLoop]: 753 mSDtfsCounter, 757 mSDsluCounter, 2931 mSDsCounter, 0 mSdLazyCounter, 4626 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 3684 SdHoareTripleChecker+Invalid, 4633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 4626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.6s IncrementalHoareTripleChecker+Time [2024-11-13 13:54:18,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 3684 Invalid, 4633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 4626 Invalid, 0 Unknown, 0 Unchecked, 26.6s Time] [2024-11-13 13:54:18,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2024-11-13 13:54:18,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 1333. [2024-11-13 13:54:18,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1333 states, 864 states have (on average 1.7743055555555556) internal successors, (1533), 1320 states have internal predecessors, (1533), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-13 13:54:18,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1333 states to 1333 states and 1580 transitions. [2024-11-13 13:54:18,366 INFO L78 Accepts]: Start accepts. Automaton has 1333 states and 1580 transitions. Word has length 124 [2024-11-13 13:54:18,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:54:18,366 INFO L471 AbstractCegarLoop]: Abstraction has 1333 states and 1580 transitions. [2024-11-13 13:54:18,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 8.88888888888889) internal successors, (80), 11 states have internal predecessors, (80), 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) [2024-11-13 13:54:18,367 INFO L276 IsEmpty]: Start isEmpty. Operand 1333 states and 1580 transitions. [2024-11-13 13:54:18,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-13 13:54:18,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:54:18,368 INFO L215 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] [2024-11-13 13:54:18,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (33)] Forceful destruction successful, exit code 0 [2024-11-13 13:54:18,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-13 13:54:18,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:54:18,769 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr92REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-13 13:54:18,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:54:18,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1693774047, now seen corresponding path program 1 times [2024-11-13 13:54:18,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:54:18,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1593458431] [2024-11-13 13:54:18,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:54:18,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:54:18,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:54:18,772 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:54:18,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-13 13:54:19,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:54:19,611 INFO L255 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-11-13 13:54:19,622 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:54:19,638 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 [2024-11-13 13:54:20,229 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 13:54:20,229 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 [2024-11-13 13:54:20,277 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 [2024-11-13 13:54:21,390 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 13:54:21,391 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 [2024-11-13 13:54:21,581 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 13:54:21,581 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 [2024-11-13 13:54:21,779 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 13:54:21,779 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 [2024-11-13 13:54:22,148 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 13:54:22,148 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 [2024-11-13 13:54:22,202 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 [2024-11-13 13:54:22,301 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 13:54:22,301 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:54:22,624 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6746 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_6746) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-13 13:54:22,692 INFO L349 Elim1Store]: treesize reduction 7, result has 77.4 percent of original size [2024-11-13 13:54:22,693 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 [2024-11-13 13:54:22,715 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6745 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6746 (Array (_ BitVec 32) (_ BitVec 32)))) (= (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_6745))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6746)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) |c_ULTIMATE.start_main_#t~mem39#1.base|)) is different from false [2024-11-13 13:54:22,741 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6745 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6746 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (let ((.cse1 (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_6745))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6746)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))) is different from false [2024-11-13 13:54:22,800 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6745 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6746 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6744 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_6744)) (.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_6745))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6746)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse3)))) is different from false [2024-11-13 13:54:22,839 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6745 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6746 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6744 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse3 (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6744))) (let ((.cse0 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (let ((.cse1 (store .cse3 .cse0 v_ArrVal_6745))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6746)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) is different from false [2024-11-13 13:54:23,731 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6745 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6746 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6744 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6792 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse2 (let ((.cse4 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6792))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6744)))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (let ((.cse0 (store .cse2 .cse3 v_ArrVal_6745))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6746)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse3))))) is different from false [2024-11-13 13:54:23,737 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:54:23,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1593458431] [2024-11-13 13:54:23,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1593458431] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:54:23,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2101721492] [2024-11-13 13:54:23,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:54:23,738 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 13:54:23,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 [2024-11-13 13:54:23,740 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 13:54:23,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2024-11-13 13:54:59,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:54:59,606 INFO L255 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-11-13 13:54:59,616 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:54:59,640 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 [2024-11-13 13:55:00,349 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-13 13:55:00,349 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 [2024-11-13 13:55:00,551 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 [2024-11-13 13:55:01,128 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 [2024-11-13 13:55:03,985 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 13:55:03,985 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 [2024-11-13 13:55:04,464 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 13:55:04,464 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 [2024-11-13 13:55:04,823 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 13:55:04,823 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 [2024-11-13 13:55:05,190 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 13:55:05,190 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 44 treesize of output 43 [2024-11-13 13:55:05,270 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 [2024-11-13 13:55:05,486 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 13:55:05,486 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:55:05,765 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6746 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7246 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_7246))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6746)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 13:55:05,794 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6746 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7246 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7246))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6746)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 13:55:05,837 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6746 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7245 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7246 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_7245))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7246)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6746)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 13:55:05,869 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6746 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7245 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7246 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7245))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7246)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6746)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 13:55:06,774 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6746 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7293 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7245 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7246 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7293))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7245)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7246)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6746)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 13:55:06,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2101721492] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:55:06,782 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:55:06,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 21 [2024-11-13 13:55:06,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692479847] [2024-11-13 13:55:06,782 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 13:55:06,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-13 13:55:06,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:55:06,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 13:55:06,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=464, Unknown=19, NotChecked=594, Total=1190 [2024-11-13 13:55:06,784 INFO L87 Difference]: Start difference. First operand 1333 states and 1580 transitions. Second operand has 22 states, 19 states have (on average 5.631578947368421) internal successors, (107), 22 states have internal predecessors, (107), 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) [2024-11-13 13:55:33,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:55:33,742 INFO L93 Difference]: Finished difference Result 1342 states and 1589 transitions. [2024-11-13 13:55:33,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 13:55:33,742 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 5.631578947368421) internal successors, (107), 22 states have internal predecessors, (107), 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 127 [2024-11-13 13:55:33,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:55:33,746 INFO L225 Difference]: With dead ends: 1342 [2024-11-13 13:55:33,746 INFO L226 Difference]: Without dead ends: 1342 [2024-11-13 13:55:33,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 243 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 11 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=122, Invalid=503, Unknown=19, NotChecked=616, Total=1260 [2024-11-13 13:55:33,746 INFO L432 NwaCegarLoop]: 683 mSDtfsCounter, 840 mSDsluCounter, 4320 mSDsCounter, 0 mSdLazyCounter, 4572 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 5003 SdHoareTripleChecker+Invalid, 4619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 4572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.7s IncrementalHoareTripleChecker+Time [2024-11-13 13:55:33,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [860 Valid, 5003 Invalid, 4619 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [47 Valid, 4572 Invalid, 0 Unknown, 0 Unchecked, 26.7s Time] [2024-11-13 13:55:33,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2024-11-13 13:55:33,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1332. [2024-11-13 13:55:33,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1332 states, 864 states have (on average 1.7731481481481481) internal successors, (1532), 1319 states have internal predecessors, (1532), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-13 13:55:33,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 1579 transitions. [2024-11-13 13:55:33,759 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 1579 transitions. Word has length 127 [2024-11-13 13:55:33,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:55:33,760 INFO L471 AbstractCegarLoop]: Abstraction has 1332 states and 1579 transitions. [2024-11-13 13:55:33,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 5.631578947368421) internal successors, (107), 22 states have internal predecessors, (107), 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) [2024-11-13 13:55:33,760 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 1579 transitions. [2024-11-13 13:55:33,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-13 13:55:33,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:55:33,761 INFO L215 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] [2024-11-13 13:55:33,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-13 13:55:33,994 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (35)] Ended with exit code 0 [2024-11-13 13:55:34,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt [2024-11-13 13:55:34,162 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr93REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-13 13:55:34,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:55:34,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1693774046, now seen corresponding path program 1 times [2024-11-13 13:55:34,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:55:34,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [445174701] [2024-11-13 13:55:34,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:55:34,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:55:34,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:55:34,165 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:55:34,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-13 13:55:34,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:55:34,978 INFO L255 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 116 conjuncts are in the unsatisfiable core [2024-11-13 13:55:34,990 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:55:35,512 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 13:55:35,512 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 [2024-11-13 13:55:35,533 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 [2024-11-13 13:55:35,604 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 [2024-11-13 13:55:35,623 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 [2024-11-13 13:55:35,972 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 [2024-11-13 13:55:35,984 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 [2024-11-13 13:55:38,326 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 13:55:38,326 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 62 treesize of output 57 [2024-11-13 13:55:38,339 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 [2024-11-13 13:55:38,689 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 13:55:38,689 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 [2024-11-13 13:55:38,713 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 [2024-11-13 13:55:39,008 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 13:55:39,008 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 [2024-11-13 13:55:39,023 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 [2024-11-13 13:55:39,335 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 13:55:39,335 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 [2024-11-13 13:55:39,369 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 [2024-11-13 13:55:39,428 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 [2024-11-13 13:55:39,450 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 [2024-11-13 13:55:39,560 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 13:55:39,560 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:55:39,947 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7796 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_7796) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_7796 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7795 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv24 32) (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_7796) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_7795) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 13:55:39,998 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$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_7796 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_7796) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_7796 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7795 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv24 32) (select (select (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_7796) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| .cse1 v_ArrVal_7795) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-13 13:55:40,082 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7796 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7794 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7793 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_7793) (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_7794) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7796) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_7796 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7795 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7794 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7793 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_7794))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv24 32) (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_7793) .cse2 v_ArrVal_7796) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_7795) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) is different from false [2024-11-13 13:55:40,145 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$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_7796 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7794 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7793 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_7793) (select (select (store |c_#memory_$Pointer$#2.base| .cse1 v_ArrVal_7794) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_7796) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_7796 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7795 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7794 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7793 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#2.base| .cse1 v_ArrVal_7794))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv24 32) (select (select (store (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_7793) .cse3 v_ArrVal_7796) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse4 .cse3 v_ArrVal_7795) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))))) is different from false [2024-11-13 13:55:58,356 WARN L286 SmtUtils]: Spent 7.13s 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) [2024-11-13 13:56:03,800 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7792 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7791 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7888 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7887 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7796 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7794 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7793 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse5 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7888))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse3 (store .cse5 .cse1 v_ArrVal_7791))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7887) .cse1 v_ArrVal_7792) .cse2 v_ArrVal_7793) (select (select (store .cse3 .cse2 v_ArrVal_7794) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_7796))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_7792 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7791 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7888 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7887 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7796 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7795 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7794 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7793 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse11 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7888))) (let ((.cse6 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse10 (store .cse11 .cse6 v_ArrVal_7791))) (let ((.cse7 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse9 (store .cse10 .cse7 v_ArrVal_7794))) (let ((.cse8 (select (select .cse9 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7887) .cse6 v_ArrVal_7792) .cse7 v_ArrVal_7793) .cse8 v_ArrVal_7796) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (select |c_#length| (select (select (store .cse9 .cse8 v_ArrVal_7795) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)))))))))))) is different from false [2024-11-13 13:56:03,859 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:56:03,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445174701] [2024-11-13 13:56:03,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445174701] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:56:03,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [702587680] [2024-11-13 13:56:03,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:56:03,860 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 13:56:03,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 [2024-11-13 13:56:03,862 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 13:56:03,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2692bd3e-5eee-4db0-8534-1b52c65d953b/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2024-11-13 13:59:43,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:59:43,492 INFO L255 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 118 conjuncts are in the unsatisfiable core [2024-11-13 13:59:43,504 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:59:43,567 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 [2024-11-13 13:59:47,241 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 [2024-11-13 13:59:47,588 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 13:59:47,588 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 [2024-11-13 13:59:47,724 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 [2024-11-13 13:59:47,979 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 [2024-11-13 13:59:48,945 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 [2024-11-13 13:59:49,010 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 [2024-11-13 14:00:02,200 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 14:00:02,200 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 [2024-11-13 14:00:02,265 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 [2024-11-13 14:00:03,615 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 14:00:03,616 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 [2024-11-13 14:00:03,680 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 [2024-11-13 14:00:04,700 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 14:00:04,700 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 [2024-11-13 14:00:04,893 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 [2024-11-13 14:00:05,790 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 14:00:05,790 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 [2024-11-13 14:00:05,855 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 [2024-11-13 14:00:06,307 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 [2024-11-13 14:00:06,435 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 [2024-11-13 14:00:06,500 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 14:00:06,500 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:00:07,117 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8392 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8391 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv24 32) (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_8392) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_8391) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_8392 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_8392) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv20 32) .cse1) (bvadd (_ bv24 32) .cse1)))))) is different from false [2024-11-13 14:00:07,342 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$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_8392 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8391 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv24 32) (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_8392) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_8391) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_8392 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_8392) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv20 32) .cse2) (bvadd (_ bv24 32) .cse2))))))) is different from false [2024-11-13 14:00:07,703 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8392 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8391 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8390 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8389 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_8390))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv24 32) (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_8389) .cse0 v_ArrVal_8392) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_8391) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_8392 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8390 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8389 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_8389) (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_8390) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8392) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv20 32) .cse3) (bvadd (_ bv24 32) .cse3)))))) is different from false [2024-11-13 14:00:07,935 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$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_8392 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8391 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8390 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8389 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_8390))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_8389) .cse1 v_ArrVal_8392) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv24 32)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_8391) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (forall ((v_ArrVal_8392 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8390 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8389 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_8389) (select (select (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_8390) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_8392) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd .cse4 (_ bv20 32)) (bvadd .cse4 (_ bv24 32)))))))) is different from false [2024-11-13 14:00:08,315 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8392 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8391 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8390 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8389 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8388 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8387 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_8387))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse3 (store .cse4 .cse0 v_ArrVal_8390))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_8388) .cse0 v_ArrVal_8389) .cse1 v_ArrVal_8392) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_8391) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))) (forall ((v_ArrVal_8392 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8390 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8389 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8388 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8387 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (select (select (let ((.cse7 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_8387))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_8388) .cse6 v_ArrVal_8389) (select (select (store .cse7 .cse6 v_ArrVal_8390) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_8392))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv20 32) .cse5) (bvadd (_ bv24 32) .cse5)))))) is different from false [2024-11-13 14:00:08,562 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$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (and (forall ((v_ArrVal_8392 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8390 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8389 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8388 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8387 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse3 (store |c_#memory_$Pointer$#2.base| .cse1 v_ArrVal_8387))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_8388) .cse2 v_ArrVal_8389) (select (select (store .cse3 .cse2 v_ArrVal_8390) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_8392))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_8392 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8391 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8390 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8389 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8388 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8387 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse8 (store |c_#memory_$Pointer$#2.base| .cse1 v_ArrVal_8387))) (let ((.cse5 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse7 (store .cse8 .cse5 v_ArrVal_8390))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_8388) .cse5 v_ArrVal_8389) .cse6 v_ArrVal_8392) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (select |c_#length| (select (select (store .cse7 .cse6 v_ArrVal_8391) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))))))))))) is different from false [2024-11-13 14:00:16,028 WARN L286 SmtUtils]: Spent 7.28s 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) [2024-11-13 14:00:20,651 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8484 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8483 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8392 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8390 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8389 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8388 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8387 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse5 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8484))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse3 (store .cse5 .cse1 v_ArrVal_8387))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8483) .cse1 v_ArrVal_8388) .cse2 v_ArrVal_8389) (select (select (store .cse3 .cse2 v_ArrVal_8390) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_8392))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_8484 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8483 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8392 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8391 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8390 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8389 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8388 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8387 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse11 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8484))) (let ((.cse6 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse10 (store .cse11 .cse6 v_ArrVal_8387))) (let ((.cse7 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse9 (store .cse10 .cse7 v_ArrVal_8390))) (let ((.cse8 (select (select .cse9 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8483) .cse6 v_ArrVal_8388) .cse7 v_ArrVal_8389) .cse8 v_ArrVal_8392) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (select |c_#length| (select (select (store .cse9 .cse8 v_ArrVal_8391) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)))))))))))) is different from false [2024-11-13 14:00:20,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [702587680] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:00:20,740 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:00:20,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2024-11-13 14:00:20,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346765407] [2024-11-13 14:00:20,740 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:00:20,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 14:00:20,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:00:20,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 14:00:20,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=189, Unknown=29, NotChecked=468, Total=756 [2024-11-13 14:00:20,742 INFO L87 Difference]: Start difference. First operand 1332 states and 1579 transitions. Second operand has 12 states, 10 states have (on average 8.7) internal successors, (87), 12 states have internal predecessors, (87), 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)