./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:27:59,845 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:27:59,958 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-28 04:27:59,969 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:27:59,970 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:28:00,011 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:28:00,012 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:28:00,012 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:28:00,012 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:28:00,013 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:28:00,013 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:28:00,013 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:28:00,013 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:28:00,014 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:28:00,014 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:28:00,014 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:28:00,014 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:28:00,014 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:28:00,015 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:28:00,015 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:28:00,015 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 04:28:00,015 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 04:28:00,015 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 04:28:00,016 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:28:00,019 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:28:00,020 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:28:00,020 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:28:00,020 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:28:00,020 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:28:00,020 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:28:00,020 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:28:00,020 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:28:00,021 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:28:00,021 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:28:00,021 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:28:00,021 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:28:00,021 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:28:00,021 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:28:00,021 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:28:00,021 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:28:00,022 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:28:00,022 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:28:00,022 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:28:00,022 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:28:00,022 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:28:00,022 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:28:00,022 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:28:00,022 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_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c [2024-11-28 04:28:00,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:28:00,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:28:00,456 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:28:00,458 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:28:00,458 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:28:00,460 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test2-2.i [2024-11-28 04:28:04,133 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/data/fbdc3d742/330670140b164e0a8f72aec344ad618e/FLAG5baee3780 [2024-11-28 04:28:04,675 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:28:04,676 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test2-2.i [2024-11-28 04:28:04,702 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/data/fbdc3d742/330670140b164e0a8f72aec344ad618e/FLAG5baee3780 [2024-11-28 04:28:04,718 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/data/fbdc3d742/330670140b164e0a8f72aec344ad618e [2024-11-28 04:28:04,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:28:04,722 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:28:04,724 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:28:04,724 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:28:04,732 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:28:04,736 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:28:04" (1/1) ... [2024-11-28 04:28:04,737 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bc223d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:04, skipping insertion in model container [2024-11-28 04:28:04,737 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:28:04" (1/1) ... [2024-11-28 04:28:04,815 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:28:05,343 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:05,384 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:05,390 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:05,395 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:05,409 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:05,481 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:05,481 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:05,484 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:05,485 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:05,487 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:05,490 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:05,492 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:05,493 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:05,494 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:05,500 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:05,509 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:28:05,524 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-11-28 04:28:05,525 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@23c1451c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:05, skipping insertion in model container [2024-11-28 04:28:05,525 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:28:05,526 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-28 04:28:05,528 INFO L158 Benchmark]: Toolchain (without parser) took 804.69ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 71.4MB in the end (delta: 20.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:28:05,529 INFO L158 Benchmark]: CDTParser took 1.84ms. Allocated memory is still 167.8MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:28:05,529 INFO L158 Benchmark]: CACSL2BoogieTranslator took 801.58ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 71.4MB in the end (delta: 19.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:28:05,531 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.84ms. Allocated memory is still 167.8MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 801.58ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 71.4MB in the end (delta: 19.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 831]: 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_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:28:08,578 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:28:08,736 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-28 04:28:08,747 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:28:08,747 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:28:08,794 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:28:08,795 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:28:08,795 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:28:08,795 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:28:08,797 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:28:08,798 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:28:08,798 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:28:08,798 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:28:08,798 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:28:08,798 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:28:08,799 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:28:08,799 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:28:08,799 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:28:08,799 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:28:08,799 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:28:08,799 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 04:28:08,799 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 04:28:08,799 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 04:28:08,800 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:28:08,800 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:28:08,800 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 04:28:08,800 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 04:28:08,800 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:28:08,800 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:28:08,800 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:28:08,800 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:28:08,800 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:28:08,801 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:28:08,801 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:28:08,801 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:28:08,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:28:08,801 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:28:08,801 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:28:08,801 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:28:08,801 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:28:08,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:28:08,801 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:28:08,802 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:28:08,802 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 04:28:08,802 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 04:28:08,802 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:28:08,802 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:28:08,802 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:28:08,802 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:28:08,802 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_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c [2024-11-28 04:28:09,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:28:09,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:28:09,185 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:28:09,187 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:28:09,189 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:28:09,191 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test2-2.i [2024-11-28 04:28:12,778 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/data/c1cfd8ad1/b580bf684dd144439d75a2bea3321476/FLAGebd23b5b1 [2024-11-28 04:28:13,229 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:28:13,230 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test2-2.i [2024-11-28 04:28:13,273 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/data/c1cfd8ad1/b580bf684dd144439d75a2bea3321476/FLAGebd23b5b1 [2024-11-28 04:28:13,301 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/data/c1cfd8ad1/b580bf684dd144439d75a2bea3321476 [2024-11-28 04:28:13,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:28:13,306 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:28:13,308 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:28:13,308 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:28:13,314 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:28:13,315 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:28:13" (1/1) ... [2024-11-28 04:28:13,316 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@432e22ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:13, skipping insertion in model container [2024-11-28 04:28:13,316 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:28:13" (1/1) ... [2024-11-28 04:28:13,378 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:28:13,895 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:13,937 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:13,943 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:13,950 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:13,972 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:14,040 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:14,041 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:14,045 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:14,045 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:14,051 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:14,057 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:14,059 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:14,060 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:14,061 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:14,068 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:14,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:28:14,092 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-28 04:28:14,109 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:28:14,153 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:14,177 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:14,180 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:14,187 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:14,195 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:14,229 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:14,229 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:14,233 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:14,234 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:14,236 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:14,239 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:14,240 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:14,241 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:14,242 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:14,248 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:28:14,252 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:28:14,258 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:28:14,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:28:14,520 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:28:14,520 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:14 WrapperNode [2024-11-28 04:28:14,520 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:28:14,521 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:28:14,521 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:28:14,522 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:28:14,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:14" (1/1) ... [2024-11-28 04:28:14,585 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:14" (1/1) ... [2024-11-28 04:28:14,704 INFO L138 Inliner]: procedures = 210, calls = 273, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1024 [2024-11-28 04:28:14,704 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:28:14,705 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:28:14,705 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:28:14,705 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:28:14,718 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:14" (1/1) ... [2024-11-28 04:28:14,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:14" (1/1) ... [2024-11-28 04:28:14,775 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:14" (1/1) ... [2024-11-28 04:28:14,899 INFO L175 MemorySlicer]: Split 254 memory accesses to 3 slices as follows [2, 218, 34]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 54 writes are split as follows [0, 50, 4]. [2024-11-28 04:28:14,899 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:14" (1/1) ... [2024-11-28 04:28:14,904 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:14" (1/1) ... [2024-11-28 04:28:14,983 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:14" (1/1) ... [2024-11-28 04:28:14,988 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:14" (1/1) ... [2024-11-28 04:28:15,011 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:14" (1/1) ... [2024-11-28 04:28:15,024 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:14" (1/1) ... [2024-11-28 04:28:15,029 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:14" (1/1) ... [2024-11-28 04:28:15,038 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:28:15,039 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:28:15,039 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:28:15,040 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:28:15,041 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:14" (1/1) ... [2024-11-28 04:28:15,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:28:15,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:15,096 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:28:15,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:28:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-28 04:28:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-28 04:28:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-28 04:28:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 04:28:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 04:28:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-28 04:28:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-28 04:28:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-28 04:28:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-28 04:28:15,134 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-28 04:28:15,134 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-28 04:28:15,134 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-28 04:28:15,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 04:28:15,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 04:28:15,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 04:28:15,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 04:28:15,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-28 04:28:15,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-28 04:28:15,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-28 04:28:15,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 04:28:15,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 04:28:15,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 04:28:15,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-28 04:28:15,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 04:28:15,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:28:15,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 04:28:15,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 04:28:15,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 04:28:15,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:28:15,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:28:15,403 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:28:15,405 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:28:15,408 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 04:28:15,462 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 04:28:15,488 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 04:28:21,183 INFO L? ?]: Removed 1086 outVars from TransFormulas that were not future-live. [2024-11-28 04:28:21,183 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:28:21,218 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:28:21,219 INFO L312 CfgBuilder]: Removed 36 assume(true) statements. [2024-11-28 04:28:21,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:28:21 BoogieIcfgContainer [2024-11-28 04:28:21,220 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:28:21,223 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:28:21,223 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:28:21,230 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:28:21,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:28:13" (1/3) ... [2024-11-28 04:28:21,231 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3363d5ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:28:21, skipping insertion in model container [2024-11-28 04:28:21,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:14" (2/3) ... [2024-11-28 04:28:21,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3363d5ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:28:21, skipping insertion in model container [2024-11-28 04:28:21,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:28:21" (3/3) ... [2024-11-28 04:28:21,233 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_FNV_nondet_test2-2.i [2024-11-28 04:28:21,251 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:28:21,253 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_FNV_nondet_test2-2.i that has 4 procedures, 1070 locations, 1 initial locations, 38 loop locations, and 525 error locations. [2024-11-28 04:28:21,333 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:28:21,356 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;@7fae61f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:28:21,356 INFO L334 AbstractCegarLoop]: Starting to check reachability of 525 error locations. [2024-11-28 04:28:21,370 INFO L276 IsEmpty]: Start isEmpty. Operand has 1060 states, 533 states have (on average 2.2157598499061915) internal successors, (1181), 1055 states have internal predecessors, (1181), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:28:21,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-28 04:28:21,377 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:21,377 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-28 04:28:21,378 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr524ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-28 04:28:21,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:21,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1758461, now seen corresponding path program 1 times [2024-11-28 04:28:21,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:28:21,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [826135426] [2024-11-28 04:28:21,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:21,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:21,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:21,397 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:21,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:28:21,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:21,631 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:28:21,642 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:21,763 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_46| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_46|)) (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_46| (_ bv0 1)) |c_#valid|))) is different from true [2024-11-28 04:28:21,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:21,774 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:28:21,775 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:28:21,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [826135426] [2024-11-28 04:28:21,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [826135426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:21,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:21,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:28:21,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531319632] [2024-11-28 04:28:21,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:21,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:28:21,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:28:21,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:28:21,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-28 04:28:21,829 INFO L87 Difference]: Start difference. First operand has 1060 states, 533 states have (on average 2.2157598499061915) internal successors, (1181), 1055 states have internal predecessors, (1181), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:25,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:25,220 INFO L93 Difference]: Finished difference Result 1449 states and 1550 transitions. [2024-11-28 04:28:25,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:28:25,222 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-28 04:28:25,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:25,240 INFO L225 Difference]: With dead ends: 1449 [2024-11-28 04:28:25,240 INFO L226 Difference]: Without dead ends: 1446 [2024-11-28 04:28:25,242 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-28 04:28:25,246 INFO L435 NwaCegarLoop]: 912 mSDtfsCounter, 427 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 1483 SdHoareTripleChecker+Invalid, 2290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1551 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:25,247 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 1483 Invalid, 2290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 739 Invalid, 0 Unknown, 1551 Unchecked, 3.2s Time] [2024-11-28 04:28:25,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2024-11-28 04:28:25,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 1048. [2024-11-28 04:28:25,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1048 states, 527 states have (on average 2.0853889943074004) internal successors, (1099), 1043 states have internal predecessors, (1099), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:28:25,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1105 transitions. [2024-11-28 04:28:25,344 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1105 transitions. Word has length 4 [2024-11-28 04:28:25,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:25,345 INFO L471 AbstractCegarLoop]: Abstraction has 1048 states and 1105 transitions. [2024-11-28 04:28:25,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:25,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1105 transitions. [2024-11-28 04:28:25,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-28 04:28:25,345 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:25,345 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-28 04:28:25,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:28:25,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:25,546 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-28 04:28:25,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:25,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1756837, now seen corresponding path program 1 times [2024-11-28 04:28:25,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:28:25,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [256894173] [2024-11-28 04:28:25,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:25,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:25,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:25,551 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:25,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:28:25,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:25,709 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:28:25,711 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:25,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 04:28:25,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:25,747 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:28:25,747 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:28:25,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256894173] [2024-11-28 04:28:25,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256894173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:25,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:25,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:28:25,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317908907] [2024-11-28 04:28:25,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:25,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:28:25,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:28:25,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:28:25,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:25,750 INFO L87 Difference]: Start difference. First operand 1048 states and 1105 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:27,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:27,898 INFO L93 Difference]: Finished difference Result 1224 states and 1291 transitions. [2024-11-28 04:28:27,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:28:27,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-28 04:28:27,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:27,903 INFO L225 Difference]: With dead ends: 1224 [2024-11-28 04:28:27,904 INFO L226 Difference]: Without dead ends: 1224 [2024-11-28 04:28:27,904 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:27,905 INFO L435 NwaCegarLoop]: 630 mSDtfsCounter, 969 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:27,905 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [972 Valid, 777 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-28 04:28:27,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2024-11-28 04:28:27,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1045. [2024-11-28 04:28:27,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1045 states, 535 states have (on average 2.0504672897196263) internal successors, (1097), 1040 states have internal predecessors, (1097), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:28:27,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1103 transitions. [2024-11-28 04:28:27,938 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1103 transitions. Word has length 4 [2024-11-28 04:28:27,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:27,938 INFO L471 AbstractCegarLoop]: Abstraction has 1045 states and 1103 transitions. [2024-11-28 04:28:27,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:27,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1103 transitions. [2024-11-28 04:28:27,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-28 04:28:27,939 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:27,939 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-28 04:28:27,949 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 04:28:28,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:28,144 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-28 04:28:28,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:28,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1756838, now seen corresponding path program 1 times [2024-11-28 04:28:28,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:28:28,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1240828340] [2024-11-28 04:28:28,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:28,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:28,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:28,148 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:28,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:28:28,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:28,273 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:28:28,275 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:28,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:28:28,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:28,310 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:28:28,310 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:28:28,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240828340] [2024-11-28 04:28:28,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1240828340] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:28,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:28,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:28:28,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776370071] [2024-11-28 04:28:28,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:28,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:28:28,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:28:28,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:28:28,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:28,312 INFO L87 Difference]: Start difference. First operand 1045 states and 1103 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:31,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:31,851 INFO L93 Difference]: Finished difference Result 1457 states and 1547 transitions. [2024-11-28 04:28:31,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:28:31,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-28 04:28:31,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:31,858 INFO L225 Difference]: With dead ends: 1457 [2024-11-28 04:28:31,858 INFO L226 Difference]: Without dead ends: 1457 [2024-11-28 04:28:31,858 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:31,859 INFO L435 NwaCegarLoop]: 904 mSDtfsCounter, 444 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 1483 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:31,860 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 1483 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-28 04:28:31,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2024-11-28 04:28:31,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1170. [2024-11-28 04:28:31,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1170 states, 661 states have (on average 2.006051437216339) internal successors, (1326), 1165 states have internal predecessors, (1326), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:28:31,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1170 states to 1170 states and 1332 transitions. [2024-11-28 04:28:31,895 INFO L78 Accepts]: Start accepts. Automaton has 1170 states and 1332 transitions. Word has length 4 [2024-11-28 04:28:31,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:31,896 INFO L471 AbstractCegarLoop]: Abstraction has 1170 states and 1332 transitions. [2024-11-28 04:28:31,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:31,896 INFO L276 IsEmpty]: Start isEmpty. Operand 1170 states and 1332 transitions. [2024-11-28 04:28:31,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-28 04:28:31,897 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:31,897 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:31,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:28:32,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:32,101 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-28 04:28:32,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:32,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1599592659, now seen corresponding path program 1 times [2024-11-28 04:28:32,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:28:32,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1845782654] [2024-11-28 04:28:32,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:32,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:32,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:32,107 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:32,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:28:32,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:32,323 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:28:32,327 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:32,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:28:32,475 INFO L349 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2024-11-28 04:28:32,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2024-11-28 04:28:32,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:32,591 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:28:32,591 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:28:32,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845782654] [2024-11-28 04:28:32,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1845782654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:32,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:32,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:28:32,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882466685] [2024-11-28 04:28:32,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:32,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:28:32,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:28:32,595 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:28:32,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:28:32,595 INFO L87 Difference]: Start difference. First operand 1170 states and 1332 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:38,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:38,826 INFO L93 Difference]: Finished difference Result 2155 states and 2293 transitions. [2024-11-28 04:28:38,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:28:38,828 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-28 04:28:38,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:38,837 INFO L225 Difference]: With dead ends: 2155 [2024-11-28 04:28:38,838 INFO L226 Difference]: Without dead ends: 2155 [2024-11-28 04:28:38,838 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:28:38,840 INFO L435 NwaCegarLoop]: 1024 mSDtfsCounter, 1182 mSDsluCounter, 1159 mSDsCounter, 0 mSdLazyCounter, 1541 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1182 SdHoareTripleChecker+Valid, 2183 SdHoareTripleChecker+Invalid, 1552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:38,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1182 Valid, 2183 Invalid, 1552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1541 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-28 04:28:38,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2155 states. [2024-11-28 04:28:38,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2155 to 1319. [2024-11-28 04:28:38,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1319 states, 810 states have (on average 1.991358024691358) internal successors, (1613), 1314 states have internal predecessors, (1613), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:28:38,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1619 transitions. [2024-11-28 04:28:38,893 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1619 transitions. Word has length 9 [2024-11-28 04:28:38,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:38,893 INFO L471 AbstractCegarLoop]: Abstraction has 1319 states and 1619 transitions. [2024-11-28 04:28:38,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:38,894 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1619 transitions. [2024-11-28 04:28:38,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-28 04:28:38,894 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:38,895 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:38,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 04:28:39,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:39,095 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-28 04:28:39,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:39,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1952235122, now seen corresponding path program 1 times [2024-11-28 04:28:39,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:28:39,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1757728102] [2024-11-28 04:28:39,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:39,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:39,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:39,099 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:39,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:28:39,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:39,275 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:28:39,277 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:39,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 04:28:39,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:39,311 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:28:39,311 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:28:39,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1757728102] [2024-11-28 04:28:39,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1757728102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:39,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:39,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:28:39,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802396728] [2024-11-28 04:28:39,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:39,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:28:39,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:28:39,313 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:28:39,313 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:39,313 INFO L87 Difference]: Start difference. First operand 1319 states and 1619 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:41,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:41,630 INFO L93 Difference]: Finished difference Result 1485 states and 1795 transitions. [2024-11-28 04:28:41,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:28:41,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2024-11-28 04:28:41,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:41,637 INFO L225 Difference]: With dead ends: 1485 [2024-11-28 04:28:41,637 INFO L226 Difference]: Without dead ends: 1485 [2024-11-28 04:28:41,637 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:41,638 INFO L435 NwaCegarLoop]: 878 mSDtfsCounter, 761 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 764 SdHoareTripleChecker+Valid, 1130 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:41,639 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [764 Valid, 1130 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-28 04:28:41,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1485 states. [2024-11-28 04:28:41,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1485 to 1272. [2024-11-28 04:28:41,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1272 states, 810 states have (on average 1.9197530864197532) internal successors, (1555), 1267 states have internal predecessors, (1555), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:28:41,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1561 transitions. [2024-11-28 04:28:41,673 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1561 transitions. Word has length 10 [2024-11-28 04:28:41,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:41,674 INFO L471 AbstractCegarLoop]: Abstraction has 1272 states and 1561 transitions. [2024-11-28 04:28:41,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:41,674 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1561 transitions. [2024-11-28 04:28:41,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-28 04:28:41,674 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:41,675 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:41,687 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 04:28:41,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:41,875 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-28 04:28:41,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:41,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1952235123, now seen corresponding path program 1 times [2024-11-28 04:28:41,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:28:41,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [74468488] [2024-11-28 04:28:41,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:41,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:41,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:41,879 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:41,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 04:28:42,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:42,036 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:28:42,038 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:42,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:28:42,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:42,102 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:28:42,103 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:28:42,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74468488] [2024-11-28 04:28:42,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [74468488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:42,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:42,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:28:42,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535285089] [2024-11-28 04:28:42,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:42,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:28:42,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:28:42,104 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:28:42,104 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:42,104 INFO L87 Difference]: Start difference. First operand 1272 states and 1561 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:45,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:45,319 INFO L93 Difference]: Finished difference Result 1696 states and 2102 transitions. [2024-11-28 04:28:45,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:28:45,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2024-11-28 04:28:45,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:45,324 INFO L225 Difference]: With dead ends: 1696 [2024-11-28 04:28:45,324 INFO L226 Difference]: Without dead ends: 1696 [2024-11-28 04:28:45,325 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:45,325 INFO L435 NwaCegarLoop]: 1053 mSDtfsCounter, 512 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 1474 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:45,326 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 1474 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-28 04:28:45,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1696 states. [2024-11-28 04:28:45,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1696 to 1299. [2024-11-28 04:28:45,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1299 states, 847 states have (on average 1.8984651711924438) internal successors, (1608), 1294 states have internal predecessors, (1608), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:28:45,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1299 states to 1299 states and 1614 transitions. [2024-11-28 04:28:45,358 INFO L78 Accepts]: Start accepts. Automaton has 1299 states and 1614 transitions. Word has length 10 [2024-11-28 04:28:45,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:45,358 INFO L471 AbstractCegarLoop]: Abstraction has 1299 states and 1614 transitions. [2024-11-28 04:28:45,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:45,358 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 1614 transitions. [2024-11-28 04:28:45,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-28 04:28:45,359 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:45,359 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:45,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 04:28:45,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:45,560 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr419REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-28 04:28:45,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:45,560 INFO L85 PathProgramCache]: Analyzing trace with hash -2110860753, now seen corresponding path program 1 times [2024-11-28 04:28:45,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:28:45,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [432823128] [2024-11-28 04:28:45,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:45,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:45,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:45,565 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:45,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 04:28:45,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:45,716 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:28:45,717 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:45,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:45,796 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:28:45,796 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:28:45,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432823128] [2024-11-28 04:28:45,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432823128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:45,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:45,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:28:45,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753806404] [2024-11-28 04:28:45,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:45,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:28:45,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:28:45,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:28:45,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:45,798 INFO L87 Difference]: Start difference. First operand 1299 states and 1614 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:46,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:46,237 INFO L93 Difference]: Finished difference Result 1552 states and 1762 transitions. [2024-11-28 04:28:46,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:28:46,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-28 04:28:46,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:46,243 INFO L225 Difference]: With dead ends: 1552 [2024-11-28 04:28:46,243 INFO L226 Difference]: Without dead ends: 1552 [2024-11-28 04:28:46,244 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:28:46,245 INFO L435 NwaCegarLoop]: 1105 mSDtfsCounter, 469 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 2056 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:46,245 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 2056 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:28:46,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2024-11-28 04:28:46,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 1284. [2024-11-28 04:28:46,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1284 states, 832 states have (on average 1.8689903846153846) internal successors, (1555), 1279 states have internal predecessors, (1555), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:28:46,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1284 states to 1284 states and 1561 transitions. [2024-11-28 04:28:46,277 INFO L78 Accepts]: Start accepts. Automaton has 1284 states and 1561 transitions. Word has length 12 [2024-11-28 04:28:46,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:46,277 INFO L471 AbstractCegarLoop]: Abstraction has 1284 states and 1561 transitions. [2024-11-28 04:28:46,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:46,277 INFO L276 IsEmpty]: Start isEmpty. Operand 1284 states and 1561 transitions. [2024-11-28 04:28:46,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-28 04:28:46,278 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:46,278 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:46,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 04:28:46,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:46,485 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr330REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-28 04:28:46,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:46,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1789694881, now seen corresponding path program 1 times [2024-11-28 04:28:46,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:28:46,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [908612165] [2024-11-28 04:28:46,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:46,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:46,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:46,490 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:46,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 04:28:46,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:46,645 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:28:46,647 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:46,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 04:28:46,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:46,715 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:28:46,715 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:28:46,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908612165] [2024-11-28 04:28:46,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908612165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:46,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:46,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:28:46,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875788458] [2024-11-28 04:28:46,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:46,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:28:46,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:28:46,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:28:46,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:28:46,717 INFO L87 Difference]: Start difference. First operand 1284 states and 1561 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) 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) [2024-11-28 04:28:49,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:49,799 INFO L93 Difference]: Finished difference Result 1452 states and 1692 transitions. [2024-11-28 04:28:49,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:28:49,799 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) 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 [2024-11-28 04:28:49,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:49,802 INFO L225 Difference]: With dead ends: 1452 [2024-11-28 04:28:49,802 INFO L226 Difference]: Without dead ends: 1452 [2024-11-28 04:28:49,802 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:28:49,803 INFO L435 NwaCegarLoop]: 588 mSDtfsCounter, 967 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 1047 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:49,803 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [970 Valid, 1221 Invalid, 1075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1047 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-28 04:28:49,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1452 states. [2024-11-28 04:28:49,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1452 to 1261. [2024-11-28 04:28:49,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1261 states, 832 states have (on average 1.7860576923076923) internal successors, (1486), 1256 states have internal predecessors, (1486), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:28:49,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1261 states to 1261 states and 1492 transitions. [2024-11-28 04:28:49,831 INFO L78 Accepts]: Start accepts. Automaton has 1261 states and 1492 transitions. Word has length 14 [2024-11-28 04:28:49,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:49,831 INFO L471 AbstractCegarLoop]: Abstraction has 1261 states and 1492 transitions. [2024-11-28 04:28:49,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) 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) [2024-11-28 04:28:49,832 INFO L276 IsEmpty]: Start isEmpty. Operand 1261 states and 1492 transitions. [2024-11-28 04:28:49,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-28 04:28:49,832 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:49,832 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:49,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 04:28:50,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:50,037 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr331REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-28 04:28:50,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:50,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1789694880, now seen corresponding path program 1 times [2024-11-28 04:28:50,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:28:50,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [590285204] [2024-11-28 04:28:50,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:50,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:50,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:50,041 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:50,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 04:28:50,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:50,214 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:28:50,216 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:50,226 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:28:50,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:50,384 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:28:50,384 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:28:50,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590285204] [2024-11-28 04:28:50,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590285204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:50,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:50,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:28:50,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498117335] [2024-11-28 04:28:50,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:50,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:28:50,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:28:50,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:28:50,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:28:50,386 INFO L87 Difference]: Start difference. First operand 1261 states and 1492 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) 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) [2024-11-28 04:28:54,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:54,331 INFO L93 Difference]: Finished difference Result 1454 states and 1663 transitions. [2024-11-28 04:28:54,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:28:54,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) 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 [2024-11-28 04:28:54,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:54,334 INFO L225 Difference]: With dead ends: 1454 [2024-11-28 04:28:54,334 INFO L226 Difference]: Without dead ends: 1454 [2024-11-28 04:28:54,335 INFO L434 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 [2024-11-28 04:28:54,335 INFO L435 NwaCegarLoop]: 894 mSDtfsCounter, 337 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 1123 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 1913 SdHoareTripleChecker+Invalid, 1138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:54,335 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 1913 Invalid, 1138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1123 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-28 04:28:54,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1454 states. [2024-11-28 04:28:54,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1454 to 1242. [2024-11-28 04:28:54,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1242 states, 813 states have (on average 1.7761377613776137) internal successors, (1444), 1237 states have internal predecessors, (1444), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:28:54,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1242 states to 1242 states and 1450 transitions. [2024-11-28 04:28:54,361 INFO L78 Accepts]: Start accepts. Automaton has 1242 states and 1450 transitions. Word has length 14 [2024-11-28 04:28:54,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:54,362 INFO L471 AbstractCegarLoop]: Abstraction has 1242 states and 1450 transitions. [2024-11-28 04:28:54,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) 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) [2024-11-28 04:28:54,362 INFO L276 IsEmpty]: Start isEmpty. Operand 1242 states and 1450 transitions. [2024-11-28 04:28:54,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-28 04:28:54,363 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:54,363 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:54,374 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 04:28:54,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:54,564 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr421REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-28 04:28:54,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:54,564 INFO L85 PathProgramCache]: Analyzing trace with hash -2029365873, now seen corresponding path program 1 times [2024-11-28 04:28:54,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:28:54,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2138955919] [2024-11-28 04:28:54,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:54,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:54,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:54,568 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:54,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 04:28:54,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:54,749 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:28:54,751 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:54,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:54,890 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:28:54,890 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:28:54,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138955919] [2024-11-28 04:28:54,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2138955919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:54,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:54,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:28:54,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744396962] [2024-11-28 04:28:54,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:54,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:28:54,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:28:54,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:28:54,891 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:28:54,891 INFO L87 Difference]: Start difference. First operand 1242 states and 1450 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:55,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:55,875 INFO L93 Difference]: Finished difference Result 1489 states and 1653 transitions. [2024-11-28 04:28:55,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:28:55,876 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2024-11-28 04:28:55,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:55,881 INFO L225 Difference]: With dead ends: 1489 [2024-11-28 04:28:55,881 INFO L226 Difference]: Without dead ends: 1489 [2024-11-28 04:28:55,881 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:28:55,883 INFO L435 NwaCegarLoop]: 1123 mSDtfsCounter, 449 mSDsluCounter, 1946 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 3069 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:55,883 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 3069 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:28:55,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1489 states. [2024-11-28 04:28:55,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1489 to 1244. [2024-11-28 04:28:55,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1244 states, 815 states have (on average 1.7742331288343558) internal successors, (1446), 1239 states have internal predecessors, (1446), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:28:55,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 1452 transitions. [2024-11-28 04:28:55,906 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 1452 transitions. Word has length 15 [2024-11-28 04:28:55,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:55,906 INFO L471 AbstractCegarLoop]: Abstraction has 1244 states and 1452 transitions. [2024-11-28 04:28:55,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:55,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 1452 transitions. [2024-11-28 04:28:55,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-28 04:28:55,909 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:55,909 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:55,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 04:28:56,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:56,110 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr524ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-28 04:28:56,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:56,111 INFO L85 PathProgramCache]: Analyzing trace with hash -2029355055, now seen corresponding path program 1 times [2024-11-28 04:28:56,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:28:56,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1069646550] [2024-11-28 04:28:56,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:56,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:56,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:56,113 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:56,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 04:28:56,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:56,273 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:28:56,279 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:56,408 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_47| (_ BitVec 32))) (and (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_47| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_47|)))) is different from true [2024-11-28 04:28:56,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:56,409 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:28:56,409 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:28:56,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069646550] [2024-11-28 04:28:56,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069646550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:56,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:56,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:28:56,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171985852] [2024-11-28 04:28:56,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:56,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:28:56,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:28:56,410 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:28:56,410 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-28 04:28:56,410 INFO L87 Difference]: Start difference. First operand 1244 states and 1452 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:58,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:58,163 INFO L93 Difference]: Finished difference Result 1261 states and 1459 transitions. [2024-11-28 04:28:58,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:28:58,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2024-11-28 04:28:58,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:58,166 INFO L225 Difference]: With dead ends: 1261 [2024-11-28 04:28:58,166 INFO L226 Difference]: Without dead ends: 1255 [2024-11-28 04:28:58,166 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-28 04:28:58,167 INFO L435 NwaCegarLoop]: 996 mSDtfsCounter, 81 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 1571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1104 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:58,167 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 1556 Invalid, 1571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 467 Invalid, 0 Unknown, 1104 Unchecked, 1.7s Time] [2024-11-28 04:28:58,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2024-11-28 04:28:58,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1244. [2024-11-28 04:28:58,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1244 states, 815 states have (on average 1.7730061349693251) internal successors, (1445), 1239 states have internal predecessors, (1445), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:28:58,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 1451 transitions. [2024-11-28 04:28:58,186 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 1451 transitions. Word has length 15 [2024-11-28 04:28:58,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:58,186 INFO L471 AbstractCegarLoop]: Abstraction has 1244 states and 1451 transitions. [2024-11-28 04:28:58,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:58,187 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 1451 transitions. [2024-11-28 04:28:58,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-28 04:28:58,187 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:58,187 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:58,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 04:28:58,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:58,388 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr355REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-28 04:28:58,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:58,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1909716041, now seen corresponding path program 1 times [2024-11-28 04:28:58,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:28:58,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1727709676] [2024-11-28 04:28:58,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:58,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:58,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:58,391 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:58,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 04:28:58,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:58,543 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:28:58,544 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:58,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:58,568 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:28:58,568 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:28:58,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727709676] [2024-11-28 04:28:58,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727709676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:58,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:58,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:28:58,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058925016] [2024-11-28 04:28:58,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:58,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:28:58,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:28:58,569 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:28:58,570 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:28:58,570 INFO L87 Difference]: Start difference. First operand 1244 states and 1451 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:58,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:28:58,664 INFO L93 Difference]: Finished difference Result 1166 states and 1330 transitions. [2024-11-28 04:28:58,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:28:58,665 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-28 04:28:58,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:28:58,668 INFO L225 Difference]: With dead ends: 1166 [2024-11-28 04:28:58,668 INFO L226 Difference]: Without dead ends: 1166 [2024-11-28 04:28:58,669 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:28:58,670 INFO L435 NwaCegarLoop]: 932 mSDtfsCounter, 45 mSDsluCounter, 1841 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 2773 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:28:58,670 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 2773 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:28:58,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1166 states. [2024-11-28 04:28:58,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1166 to 1166. [2024-11-28 04:28:58,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1166 states, 756 states have (on average 1.7513227513227514) internal successors, (1324), 1161 states have internal predecessors, (1324), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:28:58,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1166 states to 1166 states and 1330 transitions. [2024-11-28 04:28:58,689 INFO L78 Accepts]: Start accepts. Automaton has 1166 states and 1330 transitions. Word has length 16 [2024-11-28 04:28:58,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:28:58,689 INFO L471 AbstractCegarLoop]: Abstraction has 1166 states and 1330 transitions. [2024-11-28 04:28:58,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:28:58,690 INFO L276 IsEmpty]: Start isEmpty. Operand 1166 states and 1330 transitions. [2024-11-28 04:28:58,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-28 04:28:58,692 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:58,693 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:28:58,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-28 04:28:58,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:58,894 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-28 04:28:58,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:58,894 INFO L85 PathProgramCache]: Analyzing trace with hash 2113969666, now seen corresponding path program 1 times [2024-11-28 04:28:58,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:28:58,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [867595248] [2024-11-28 04:28:58,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:58,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:58,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:58,897 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:58,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 04:28:59,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:59,111 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:28:59,113 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:59,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:28:59,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:28:59,275 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:28:59,275 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:28:59,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867595248] [2024-11-28 04:28:59,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867595248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:59,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:28:59,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:28:59,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245979770] [2024-11-28 04:28:59,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:59,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:28:59,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:28:59,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:28:59,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:28:59,277 INFO L87 Difference]: Start difference. First operand 1166 states and 1330 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) 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) [2024-11-28 04:29:03,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:03,024 INFO L93 Difference]: Finished difference Result 1560 states and 1786 transitions. [2024-11-28 04:29:03,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:29:03,025 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) 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 [2024-11-28 04:29:03,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:03,029 INFO L225 Difference]: With dead ends: 1560 [2024-11-28 04:29:03,029 INFO L226 Difference]: Without dead ends: 1560 [2024-11-28 04:29:03,029 INFO L434 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 [2024-11-28 04:29:03,029 INFO L435 NwaCegarLoop]: 992 mSDtfsCounter, 597 mSDsluCounter, 990 mSDsCounter, 0 mSdLazyCounter, 1192 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 1982 SdHoareTripleChecker+Invalid, 1214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:03,030 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 1982 Invalid, 1214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1192 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-28 04:29:03,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1560 states. [2024-11-28 04:29:03,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1560 to 1282. [2024-11-28 04:29:03,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 872 states have (on average 1.731651376146789) internal successors, (1510), 1277 states have internal predecessors, (1510), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:29:03,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 1516 transitions. [2024-11-28 04:29:03,049 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 1516 transitions. Word has length 20 [2024-11-28 04:29:03,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:03,050 INFO L471 AbstractCegarLoop]: Abstraction has 1282 states and 1516 transitions. [2024-11-28 04:29:03,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) 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) [2024-11-28 04:29:03,050 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 1516 transitions. [2024-11-28 04:29:03,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-28 04:29:03,051 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:03,051 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:03,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-28 04:29:03,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:03,251 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-28 04:29:03,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:03,252 INFO L85 PathProgramCache]: Analyzing trace with hash 2113969665, now seen corresponding path program 1 times [2024-11-28 04:29:03,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:29:03,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [438683694] [2024-11-28 04:29:03,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:03,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:03,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:03,255 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:03,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 04:29:03,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:03,471 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:29:03,473 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:29:03,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:29:03,528 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:29:03,528 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:29:03,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438683694] [2024-11-28 04:29:03,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [438683694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:03,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:03,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:29:03,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95298237] [2024-11-28 04:29:03,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:03,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:29:03,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:29:03,530 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:29:03,530 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:29:03,530 INFO L87 Difference]: Start difference. First operand 1282 states and 1516 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) 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) [2024-11-28 04:29:06,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:06,270 INFO L93 Difference]: Finished difference Result 1270 states and 1434 transitions. [2024-11-28 04:29:06,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:29:06,270 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) 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 [2024-11-28 04:29:06,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:06,275 INFO L225 Difference]: With dead ends: 1270 [2024-11-28 04:29:06,275 INFO L226 Difference]: Without dead ends: 1270 [2024-11-28 04:29:06,275 INFO L434 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 [2024-11-28 04:29:06,275 INFO L435 NwaCegarLoop]: 645 mSDtfsCounter, 728 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 971 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 1276 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:06,275 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [731 Valid, 1276 Invalid, 999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 971 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-28 04:29:06,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2024-11-28 04:29:06,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 1259. [2024-11-28 04:29:06,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1259 states, 872 states have (on average 1.6261467889908257) internal successors, (1418), 1254 states have internal predecessors, (1418), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:29:06,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1259 states to 1259 states and 1424 transitions. [2024-11-28 04:29:06,292 INFO L78 Accepts]: Start accepts. Automaton has 1259 states and 1424 transitions. Word has length 20 [2024-11-28 04:29:06,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:06,292 INFO L471 AbstractCegarLoop]: Abstraction has 1259 states and 1424 transitions. [2024-11-28 04:29:06,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) 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) [2024-11-28 04:29:06,293 INFO L276 IsEmpty]: Start isEmpty. Operand 1259 states and 1424 transitions. [2024-11-28 04:29:06,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-28 04:29:06,294 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:06,294 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:06,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-28 04:29:06,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:06,495 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-28 04:29:06,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:06,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1029891552, now seen corresponding path program 1 times [2024-11-28 04:29:06,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:29:06,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [468714795] [2024-11-28 04:29:06,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:06,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:06,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:06,498 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:06,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 04:29:06,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:06,735 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:29:06,738 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:29:06,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:29:07,112 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:29:07,112 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:29:07,860 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:29:07,860 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:29:07,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468714795] [2024-11-28 04:29:07,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468714795] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:29:07,860 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:29:07,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-28 04:29:07,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244135069] [2024-11-28 04:29:07,860 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:29:07,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:29:07,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:29:07,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:29:07,861 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:29:07,862 INFO L87 Difference]: Start difference. First operand 1259 states and 1424 transitions. Second operand has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:17,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:17,783 INFO L93 Difference]: Finished difference Result 1899 states and 2190 transitions. [2024-11-28 04:29:17,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:29:17,784 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 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 39 [2024-11-28 04:29:17,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:17,789 INFO L225 Difference]: With dead ends: 1899 [2024-11-28 04:29:17,789 INFO L226 Difference]: Without dead ends: 1899 [2024-11-28 04:29:17,789 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:29:17,790 INFO L435 NwaCegarLoop]: 1020 mSDtfsCounter, 1922 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 1808 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1923 SdHoareTripleChecker+Valid, 2721 SdHoareTripleChecker+Invalid, 1835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:17,790 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1923 Valid, 2721 Invalid, 1835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1808 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2024-11-28 04:29:17,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1899 states. [2024-11-28 04:29:17,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1899 to 1425. [2024-11-28 04:29:17,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1425 states, 1038 states have (on average 1.5915221579961465) internal successors, (1652), 1420 states have internal predecessors, (1652), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:29:17,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 1658 transitions. [2024-11-28 04:29:17,812 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 1658 transitions. Word has length 39 [2024-11-28 04:29:17,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:17,813 INFO L471 AbstractCegarLoop]: Abstraction has 1425 states and 1658 transitions. [2024-11-28 04:29:17,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:17,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 1658 transitions. [2024-11-28 04:29:17,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-28 04:29:17,814 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:17,814 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:17,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-28 04:29:18,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:18,016 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr414ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-28 04:29:18,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:18,016 INFO L85 PathProgramCache]: Analyzing trace with hash -797594166, now seen corresponding path program 1 times [2024-11-28 04:29:18,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:29:18,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [609434023] [2024-11-28 04:29:18,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:18,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:18,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:18,019 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:18,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 04:29:18,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:18,290 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:29:18,292 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:29:18,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:29:18,383 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:29:18,383 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:29:18,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609434023] [2024-11-28 04:29:18,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609434023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:18,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:18,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:29:18,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125143627] [2024-11-28 04:29:18,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:18,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:29:18,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:29:18,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:29:18,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:29:18,385 INFO L87 Difference]: Start difference. First operand 1425 states and 1658 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:18,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:18,490 INFO L93 Difference]: Finished difference Result 1407 states and 1628 transitions. [2024-11-28 04:29:18,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:29:18,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 50 [2024-11-28 04:29:18,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:18,495 INFO L225 Difference]: With dead ends: 1407 [2024-11-28 04:29:18,495 INFO L226 Difference]: Without dead ends: 1407 [2024-11-28 04:29:18,495 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:29:18,496 INFO L435 NwaCegarLoop]: 911 mSDtfsCounter, 27 mSDsluCounter, 1785 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 2696 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 [2024-11-28 04:29:18,496 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 2696 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:29:18,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1407 states. [2024-11-28 04:29:18,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1407 to 1407. [2024-11-28 04:29:18,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1407 states, 1020 states have (on average 1.5901960784313725) internal successors, (1622), 1402 states have internal predecessors, (1622), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:29:18,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1407 states to 1407 states and 1628 transitions. [2024-11-28 04:29:18,513 INFO L78 Accepts]: Start accepts. Automaton has 1407 states and 1628 transitions. Word has length 50 [2024-11-28 04:29:18,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:18,513 INFO L471 AbstractCegarLoop]: Abstraction has 1407 states and 1628 transitions. [2024-11-28 04:29:18,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:18,514 INFO L276 IsEmpty]: Start isEmpty. Operand 1407 states and 1628 transitions. [2024-11-28 04:29:18,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-28 04:29:18,515 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:18,515 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:18,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-28 04:29:18,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:18,716 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-28 04:29:18,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:18,717 INFO L85 PathProgramCache]: Analyzing trace with hash 24010691, now seen corresponding path program 1 times [2024-11-28 04:29:18,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:29:18,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1750600059] [2024-11-28 04:29:18,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:18,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:18,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:18,721 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:18,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 04:29:19,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:19,059 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:29:19,061 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:29:19,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:29:19,157 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:29:19,157 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:29:19,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750600059] [2024-11-28 04:29:19,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1750600059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:19,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:19,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:29:19,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589783313] [2024-11-28 04:29:19,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:19,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:29:19,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:29:19,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:29:19,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:29:19,160 INFO L87 Difference]: Start difference. First operand 1407 states and 1628 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:19,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:19,303 INFO L93 Difference]: Finished difference Result 1092 states and 1188 transitions. [2024-11-28 04:29:19,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:29:19,304 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 55 [2024-11-28 04:29:19,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:19,307 INFO L225 Difference]: With dead ends: 1092 [2024-11-28 04:29:19,307 INFO L226 Difference]: Without dead ends: 1092 [2024-11-28 04:29:19,309 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:29:19,310 INFO L435 NwaCegarLoop]: 865 mSDtfsCounter, 56 mSDsluCounter, 1657 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 2522 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:19,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 2522 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:29:19,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2024-11-28 04:29:19,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 1090. [2024-11-28 04:29:19,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1090 states, 726 states have (on average 1.6253443526170799) internal successors, (1180), 1085 states have internal predecessors, (1180), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:29:19,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 1186 transitions. [2024-11-28 04:29:19,329 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 1186 transitions. Word has length 55 [2024-11-28 04:29:19,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:19,329 INFO L471 AbstractCegarLoop]: Abstraction has 1090 states and 1186 transitions. [2024-11-28 04:29:19,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:19,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 1186 transitions. [2024-11-28 04:29:19,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-28 04:29:19,332 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:19,332 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:19,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-28 04:29:19,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:19,533 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr414ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-28 04:29:19,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:19,533 INFO L85 PathProgramCache]: Analyzing trace with hash -355383530, now seen corresponding path program 1 times [2024-11-28 04:29:19,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:29:19,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [843770352] [2024-11-28 04:29:19,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:19,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:19,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:19,536 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:19,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 04:29:19,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:19,792 INFO L256 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:29:19,795 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:29:19,814 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:29:19,815 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:29:19,815 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:29:19,819 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2024-11-28 04:29:19,920 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:29:19,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-11-28 04:29:20,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:29:20,003 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:29:20,003 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:29:20,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843770352] [2024-11-28 04:29:20,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843770352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:20,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:20,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:29:20,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046042884] [2024-11-28 04:29:20,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:20,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:29:20,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:29:20,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:29:20,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:29:20,005 INFO L87 Difference]: Start difference. First operand 1090 states and 1186 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:20,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:20,665 INFO L93 Difference]: Finished difference Result 1562 states and 1688 transitions. [2024-11-28 04:29:20,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:29:20,666 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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 58 [2024-11-28 04:29:20,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:20,672 INFO L225 Difference]: With dead ends: 1562 [2024-11-28 04:29:20,672 INFO L226 Difference]: Without dead ends: 1559 [2024-11-28 04:29:20,672 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:29:20,673 INFO L435 NwaCegarLoop]: 853 mSDtfsCounter, 1852 mSDsluCounter, 2317 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1858 SdHoareTripleChecker+Valid, 3170 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:20,673 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1858 Valid, 3170 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:29:20,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1559 states. [2024-11-28 04:29:20,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1559 to 1036. [2024-11-28 04:29:20,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1036 states, 672 states have (on average 1.6726190476190477) internal successors, (1124), 1031 states have internal predecessors, (1124), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:29:20,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1036 states to 1036 states and 1130 transitions. [2024-11-28 04:29:20,722 INFO L78 Accepts]: Start accepts. Automaton has 1036 states and 1130 transitions. Word has length 58 [2024-11-28 04:29:20,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:20,722 INFO L471 AbstractCegarLoop]: Abstraction has 1036 states and 1130 transitions. [2024-11-28 04:29:20,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:20,723 INFO L276 IsEmpty]: Start isEmpty. Operand 1036 states and 1130 transitions. [2024-11-28 04:29:20,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-28 04:29:20,724 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:20,724 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:20,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-28 04:29:20,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:20,925 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-28 04:29:20,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:20,927 INFO L85 PathProgramCache]: Analyzing trace with hash 54784503, now seen corresponding path program 1 times [2024-11-28 04:29:20,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:29:20,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [394481597] [2024-11-28 04:29:20,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:20,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:20,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:20,931 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:20,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-28 04:29:21,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:21,328 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:29:21,332 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:29:21,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:29:22,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:29:22,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-28 04:29:22,220 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:29:22,220 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:29:22,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:29:22,227 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:29:22,228 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:29:22,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394481597] [2024-11-28 04:29:22,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [394481597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:22,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:22,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:29:22,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825630279] [2024-11-28 04:29:22,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:22,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:29:22,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:29:22,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:29:22,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:29:22,230 INFO L87 Difference]: Start difference. First operand 1036 states and 1130 transitions. Second operand has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:26,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:26,205 INFO L93 Difference]: Finished difference Result 998 states and 1092 transitions. [2024-11-28 04:29:26,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:29:26,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 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 63 [2024-11-28 04:29:26,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:26,209 INFO L225 Difference]: With dead ends: 998 [2024-11-28 04:29:26,210 INFO L226 Difference]: Without dead ends: 998 [2024-11-28 04:29:26,210 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:29:26,210 INFO L435 NwaCegarLoop]: 450 mSDtfsCounter, 616 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 1185 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 1227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:26,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [619 Valid, 913 Invalid, 1227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1185 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-28 04:29:26,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 998 states. [2024-11-28 04:29:26,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 998 to 961. [2024-11-28 04:29:26,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 961 states, 635 states have (on average 1.5937007874015747) internal successors, (1012), 956 states have internal predecessors, (1012), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:29:26,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1018 transitions. [2024-11-28 04:29:26,225 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1018 transitions. Word has length 63 [2024-11-28 04:29:26,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:26,226 INFO L471 AbstractCegarLoop]: Abstraction has 961 states and 1018 transitions. [2024-11-28 04:29:26,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:26,226 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1018 transitions. [2024-11-28 04:29:26,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 04:29:26,227 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:26,227 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:26,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-28 04:29:26,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:26,428 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-28 04:29:26,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:26,428 INFO L85 PathProgramCache]: Analyzing trace with hash -2089651903, now seen corresponding path program 1 times [2024-11-28 04:29:26,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:29:26,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1637787860] [2024-11-28 04:29:26,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:26,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:26,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:26,434 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:26,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-28 04:29:26,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:26,762 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:29:26,765 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:29:26,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 04:29:26,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:29:26,831 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-28 04:29:26,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:29:26,850 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:29:26,850 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:29:26,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637787860] [2024-11-28 04:29:26,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637787860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:26,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:26,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:29:26,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208757222] [2024-11-28 04:29:26,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:26,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:29:26,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:29:26,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:29:26,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:29:26,852 INFO L87 Difference]: Start difference. First operand 961 states and 1018 transitions. Second operand has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:29,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:29,968 INFO L93 Difference]: Finished difference Result 960 states and 1017 transitions. [2024-11-28 04:29:29,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:29:29,969 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 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 68 [2024-11-28 04:29:29,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:29,973 INFO L225 Difference]: With dead ends: 960 [2024-11-28 04:29:29,973 INFO L226 Difference]: Without dead ends: 960 [2024-11-28 04:29:29,973 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:29:29,974 INFO L435 NwaCegarLoop]: 838 mSDtfsCounter, 2 mSDsluCounter, 1349 mSDsCounter, 0 mSdLazyCounter, 1172 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2187 SdHoareTripleChecker+Invalid, 1173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:29,974 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2187 Invalid, 1173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1172 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-28 04:29:29,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2024-11-28 04:29:29,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 960. [2024-11-28 04:29:29,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 960 states, 635 states have (on average 1.5921259842519686) internal successors, (1011), 955 states have internal predecessors, (1011), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:29:29,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 1017 transitions. [2024-11-28 04:29:29,989 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 1017 transitions. Word has length 68 [2024-11-28 04:29:29,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:29,989 INFO L471 AbstractCegarLoop]: Abstraction has 960 states and 1017 transitions. [2024-11-28 04:29:29,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:29,990 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 1017 transitions. [2024-11-28 04:29:29,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 04:29:29,991 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:29,991 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:30,008 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-28 04:29:30,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:30,191 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-28 04:29:30,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:30,192 INFO L85 PathProgramCache]: Analyzing trace with hash -2089651902, now seen corresponding path program 1 times [2024-11-28 04:29:30,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:29:30,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [556036425] [2024-11-28 04:29:30,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:30,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:30,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:30,195 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:30,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 04:29:30,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:30,529 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:29:30,532 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:29:30,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:29:30,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:29:30,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-28 04:29:30,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-28 04:29:30,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:29:30,699 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:29:30,699 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:29:30,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556036425] [2024-11-28 04:29:30,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [556036425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:30,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:30,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:29:30,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217562885] [2024-11-28 04:29:30,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:30,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:29:30,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:29:30,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:29:30,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:29:30,701 INFO L87 Difference]: Start difference. First operand 960 states and 1017 transitions. Second operand has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:34,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:34,192 INFO L93 Difference]: Finished difference Result 959 states and 1016 transitions. [2024-11-28 04:29:34,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:29:34,193 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 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 68 [2024-11-28 04:29:34,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:34,196 INFO L225 Difference]: With dead ends: 959 [2024-11-28 04:29:34,196 INFO L226 Difference]: Without dead ends: 959 [2024-11-28 04:29:34,196 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:29:34,197 INFO L435 NwaCegarLoop]: 838 mSDtfsCounter, 1 mSDsluCounter, 1337 mSDsCounter, 0 mSdLazyCounter, 1181 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2175 SdHoareTripleChecker+Invalid, 1182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:34,198 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2175 Invalid, 1182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1181 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-28 04:29:34,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2024-11-28 04:29:34,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 959. [2024-11-28 04:29:34,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 959 states, 634 states have (on average 1.5930599369085174) internal successors, (1010), 954 states have internal predecessors, (1010), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:29:34,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1016 transitions. [2024-11-28 04:29:34,213 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1016 transitions. Word has length 68 [2024-11-28 04:29:34,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:34,213 INFO L471 AbstractCegarLoop]: Abstraction has 959 states and 1016 transitions. [2024-11-28 04:29:34,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:34,213 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1016 transitions. [2024-11-28 04:29:34,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-28 04:29:34,214 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:34,214 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:34,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-28 04:29:34,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:34,415 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-28 04:29:34,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:34,415 INFO L85 PathProgramCache]: Analyzing trace with hash -447010039, now seen corresponding path program 1 times [2024-11-28 04:29:34,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:29:34,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1538966506] [2024-11-28 04:29:34,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:34,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:34,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:34,418 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:34,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-28 04:29:34,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:34,751 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:29:34,753 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:29:34,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:29:34,779 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:29:34,780 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:29:34,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538966506] [2024-11-28 04:29:34,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538966506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:34,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:34,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:29:34,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171605886] [2024-11-28 04:29:34,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:34,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:29:34,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:29:34,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:29:34,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:29:34,782 INFO L87 Difference]: Start difference. First operand 959 states and 1016 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:29:34,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:34,833 INFO L93 Difference]: Finished difference Result 962 states and 1020 transitions. [2024-11-28 04:29:34,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:29:34,835 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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 76 [2024-11-28 04:29:34,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:34,843 INFO L225 Difference]: With dead ends: 962 [2024-11-28 04:29:34,843 INFO L226 Difference]: Without dead ends: 962 [2024-11-28 04:29:34,844 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:29:34,845 INFO L435 NwaCegarLoop]: 838 mSDtfsCounter, 0 mSDsluCounter, 1671 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2509 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:34,846 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2509 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:29:34,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2024-11-28 04:29:34,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 962. [2024-11-28 04:29:34,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 636 states have (on average 1.5927672955974843) internal successors, (1013), 957 states have internal predecessors, (1013), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:29:34,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1020 transitions. [2024-11-28 04:29:34,872 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1020 transitions. Word has length 76 [2024-11-28 04:29:34,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:34,873 INFO L471 AbstractCegarLoop]: Abstraction has 962 states and 1020 transitions. [2024-11-28 04:29:34,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:29:34,873 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1020 transitions. [2024-11-28 04:29:34,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-28 04:29:34,877 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:34,877 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:34,894 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-28 04:29:35,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:35,078 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-28 04:29:35,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:35,078 INFO L85 PathProgramCache]: Analyzing trace with hash -26576800, now seen corresponding path program 1 times [2024-11-28 04:29:35,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:29:35,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1166215175] [2024-11-28 04:29:35,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:35,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:35,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:35,080 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:35,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-28 04:29:35,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:35,397 INFO L256 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:29:35,399 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:29:35,423 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:29:35,423 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:29:35,500 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:29:35,500 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:29:35,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166215175] [2024-11-28 04:29:35,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1166215175] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:29:35,501 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:29:35,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-28 04:29:35,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143294769] [2024-11-28 04:29:35,501 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:29:35,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:29:35,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:29:35,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:29:35,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:29:35,502 INFO L87 Difference]: Start difference. First operand 962 states and 1020 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:29:35,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:35,702 INFO L93 Difference]: Finished difference Result 974 states and 1037 transitions. [2024-11-28 04:29:35,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:29:35,703 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 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 77 [2024-11-28 04:29:35,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:35,705 INFO L225 Difference]: With dead ends: 974 [2024-11-28 04:29:35,705 INFO L226 Difference]: Without dead ends: 974 [2024-11-28 04:29:35,705 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:29:35,706 INFO L435 NwaCegarLoop]: 838 mSDtfsCounter, 5 mSDsluCounter, 4171 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 5009 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:35,706 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 5009 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:29:35,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2024-11-28 04:29:35,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 972. [2024-11-28 04:29:35,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 645 states have (on average 1.5937984496124031) internal successors, (1028), 966 states have internal predecessors, (1028), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:29:35,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1035 transitions. [2024-11-28 04:29:35,723 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1035 transitions. Word has length 77 [2024-11-28 04:29:35,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:35,724 INFO L471 AbstractCegarLoop]: Abstraction has 972 states and 1035 transitions. [2024-11-28 04:29:35,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:29:35,724 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1035 transitions. [2024-11-28 04:29:35,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-28 04:29:35,725 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:35,725 INFO L218 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:35,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-28 04:29:35,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:35,926 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-28 04:29:35,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:35,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1433356489, now seen corresponding path program 2 times [2024-11-28 04:29:35,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:29:35,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [357743607] [2024-11-28 04:29:35,927 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:29:35,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:35,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:35,928 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:35,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-28 04:30:04,244 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:30:04,245 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:30:04,264 INFO L256 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-28 04:30:04,269 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:04,425 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:30:04,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:30:04,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:30:04,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:30:04,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-28 04:30:04,720 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 04:30:04,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 04:30:05,041 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:30:05,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:30:05,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:30:05,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-28 04:30:05,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 04:30:05,184 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 04:30:05,184 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:30:05,486 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_1273 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1274 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv20 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_1273) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_1274) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_1273 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_1273) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv16 32) .cse1) (bvadd (_ bv20 32) .cse1)))))) is different from false [2024-11-28 04:30:05,494 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:30:05,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357743607] [2024-11-28 04:30:05,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [357743607] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:30:05,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1012251368] [2024-11-28 04:30:05,495 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:30:05,495 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:30:05,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:30:05,501 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:30:05,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2024-11-28 04:30:07,382 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:30:07,383 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:30:07,394 INFO L256 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:30:07,397 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:07,723 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:07,723 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:30:08,190 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:08,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1012251368] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:30:08,191 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:30:08,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 22 [2024-11-28 04:30:08,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286240501] [2024-11-28 04:30:08,191 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:30:08,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 04:30:08,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:30:08,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 04:30:08,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=467, Unknown=1, NotChecked=44, Total=600 [2024-11-28 04:30:08,195 INFO L87 Difference]: Start difference. First operand 972 states and 1035 transitions. Second operand has 22 states, 21 states have (on average 6.857142857142857) internal successors, (144), 22 states have internal predecessors, (144), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:30:25,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:25,429 INFO L93 Difference]: Finished difference Result 992 states and 1059 transitions. [2024-11-28 04:30:25,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-28 04:30:25,429 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 6.857142857142857) internal successors, (144), 22 states have internal predecessors, (144), 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 80 [2024-11-28 04:30:25,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:25,432 INFO L225 Difference]: With dead ends: 992 [2024-11-28 04:30:25,432 INFO L226 Difference]: Without dead ends: 982 [2024-11-28 04:30:25,433 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 220 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=320, Invalid=1845, Unknown=1, NotChecked=90, Total=2256 [2024-11-28 04:30:25,433 INFO L435 NwaCegarLoop]: 561 mSDtfsCounter, 624 mSDsluCounter, 8432 mSDsCounter, 0 mSdLazyCounter, 6593 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 8993 SdHoareTripleChecker+Invalid, 6612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 6593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:25,434 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 8993 Invalid, 6612 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 6593 Invalid, 0 Unknown, 0 Unchecked, 15.6s Time] [2024-11-28 04:30:25,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2024-11-28 04:30:25,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 980. [2024-11-28 04:30:25,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 980 states, 654 states have (on average 1.5825688073394495) internal successors, (1035), 974 states have internal predecessors, (1035), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:30:25,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 1042 transitions. [2024-11-28 04:30:25,452 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 1042 transitions. Word has length 80 [2024-11-28 04:30:25,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:25,452 INFO L471 AbstractCegarLoop]: Abstraction has 980 states and 1042 transitions. [2024-11-28 04:30:25,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 6.857142857142857) internal successors, (144), 22 states have internal predecessors, (144), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:30:25,453 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 1042 transitions. [2024-11-28 04:30:25,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-28 04:30:25,453 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:25,454 INFO L218 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:25,481 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-28 04:30:25,687 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2024-11-28 04:30:25,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 04:30:25,854 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-28 04:30:25,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:25,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1791012504, now seen corresponding path program 1 times [2024-11-28 04:30:25,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:30:25,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1803223222] [2024-11-28 04:30:25,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:25,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:25,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:25,857 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:25,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-28 04:30:26,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:26,206 INFO L256 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:30:26,209 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:26,471 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:26,472 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:30:27,242 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:27,242 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:30:27,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803223222] [2024-11-28 04:30:27,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803223222] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:30:27,243 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:30:27,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-11-28 04:30:27,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509556119] [2024-11-28 04:30:27,243 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:30:27,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-28 04:30:27,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:30:27,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-28 04:30:27,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:30:27,245 INFO L87 Difference]: Start difference. First operand 980 states and 1042 transitions. Second operand has 26 states, 26 states have (on average 3.730769230769231) internal successors, (97), 26 states have internal predecessors, (97), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:30:29,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:29,551 INFO L93 Difference]: Finished difference Result 1004 states and 1081 transitions. [2024-11-28 04:30:29,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-28 04:30:29,552 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.730769230769231) internal successors, (97), 26 states have internal predecessors, (97), 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 86 [2024-11-28 04:30:29,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:29,555 INFO L225 Difference]: With dead ends: 1004 [2024-11-28 04:30:29,555 INFO L226 Difference]: Without dead ends: 998 [2024-11-28 04:30:29,556 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-11-28 04:30:29,556 INFO L435 NwaCegarLoop]: 837 mSDtfsCounter, 19 mSDsluCounter, 10839 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 11676 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:29,557 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 11676 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:30:29,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 998 states. [2024-11-28 04:30:29,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 998 to 998. [2024-11-28 04:30:29,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 672 states have (on average 1.5744047619047619) internal successors, (1058), 992 states have internal predecessors, (1058), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:30:29,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1065 transitions. [2024-11-28 04:30:29,581 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1065 transitions. Word has length 86 [2024-11-28 04:30:29,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:29,581 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1065 transitions. [2024-11-28 04:30:29,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.730769230769231) internal successors, (97), 26 states have internal predecessors, (97), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:30:29,582 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1065 transitions. [2024-11-28 04:30:29,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-28 04:30:29,583 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:29,583 INFO L218 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:29,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-28 04:30:29,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:29,783 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-28 04:30:29,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:29,784 INFO L85 PathProgramCache]: Analyzing trace with hash 750156456, now seen corresponding path program 2 times [2024-11-28 04:30:29,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:30:29,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [148133713] [2024-11-28 04:30:29,785 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:30:29,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:29,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:29,786 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:29,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-28 04:31:31,008 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:31:31,008 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:31:31,036 INFO L256 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-28 04:31:31,042 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:31:31,201 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:31:31,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:31:31,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:31:31,790 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:31:31,790 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 44 treesize of output 43 [2024-11-28 04:31:31,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 04:31:31,883 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-28 04:31:31,884 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:31:32,161 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2024-11-28 04:31:32,161 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2024-11-28 04:31:32,232 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:31:32,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148133713] [2024-11-28 04:31:32,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [148133713] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:31:32,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [726002072] [2024-11-28 04:31:32,232 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:31:32,233 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:31:32,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:31:32,235 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:31:32,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2024-11-28 04:31:34,438 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:31:34,438 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:31:34,491 INFO L256 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 04:31:34,494 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:31:35,859 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:31:35,859 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:31:38,969 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:31:38,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [726002072] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:31:38,969 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:31:38,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 26, 26] total 60 [2024-11-28 04:31:38,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459037310] [2024-11-28 04:31:38,970 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:31:38,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2024-11-28 04:31:38,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:31:38,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2024-11-28 04:31:38,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=702, Invalid=3073, Unknown=7, NotChecked=0, Total=3782 [2024-11-28 04:31:38,972 INFO L87 Difference]: Start difference. First operand 998 states and 1065 transitions. Second operand has 60 states, 59 states have (on average 3.0508474576271185) internal successors, (180), 59 states have internal predecessors, (180), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:32:14,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:14,075 INFO L93 Difference]: Finished difference Result 1039 states and 1138 transitions. [2024-11-28 04:32:14,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2024-11-28 04:32:14,076 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 59 states have (on average 3.0508474576271185) internal successors, (180), 59 states have internal predecessors, (180), 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 98 [2024-11-28 04:32:14,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:14,079 INFO L225 Difference]: With dead ends: 1039 [2024-11-28 04:32:14,079 INFO L226 Difference]: Without dead ends: 1035 [2024-11-28 04:32:14,083 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3606 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=3766, Invalid=15965, Unknown=9, NotChecked=0, Total=19740 [2024-11-28 04:32:14,084 INFO L435 NwaCegarLoop]: 561 mSDtfsCounter, 649 mSDsluCounter, 16821 mSDsCounter, 0 mSdLazyCounter, 11985 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 17382 SdHoareTripleChecker+Invalid, 12035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 11985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:14,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 17382 Invalid, 12035 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [50 Valid, 11985 Invalid, 0 Unknown, 0 Unchecked, 26.5s Time] [2024-11-28 04:32:14,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states. [2024-11-28 04:32:14,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 1031. [2024-11-28 04:32:14,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 706 states have (on average 1.5623229461756374) internal successors, (1103), 1025 states have internal predecessors, (1103), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:32:14,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1110 transitions. [2024-11-28 04:32:14,100 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1110 transitions. Word has length 98 [2024-11-28 04:32:14,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:14,101 INFO L471 AbstractCegarLoop]: Abstraction has 1031 states and 1110 transitions. [2024-11-28 04:32:14,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 59 states have (on average 3.0508474576271185) internal successors, (180), 59 states have internal predecessors, (180), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:32:14,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1110 transitions. [2024-11-28 04:32:14,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-28 04:32:14,102 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:14,103 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:14,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-28 04:32:14,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2024-11-28 04:32:14,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 04:32:14,504 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr84REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-28 04:32:14,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:14,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1529868866, now seen corresponding path program 1 times [2024-11-28 04:32:14,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:32:14,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1773377234] [2024-11-28 04:32:14,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:14,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:32:14,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:32:14,507 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:32:14,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-28 04:32:15,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:15,092 INFO L256 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-11-28 04:32:15,102 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:15,235 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:32:15,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:32:15,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:32:15,714 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:32:15,714 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-28 04:32:15,785 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:32:15,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:32:15,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 04:32:15,864 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:32:15,864 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:32:15,931 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2024-11-28 04:32:15,931 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2024-11-28 04:32:15,939 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2512 (Array (_ BitVec 32) (_ BitVec 32)))) (= (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_2512) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)) |c_ULTIMATE.start_main_#t~mem38#1.base|)) is different from false [2024-11-28 04:32:15,948 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2512 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_2512) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse0)))) is different from false [2024-11-28 04:32:16,408 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2512 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2558 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_2558)) (.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_2512) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) .cse1)))) is different from false [2024-11-28 04:32:16,411 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:32:16,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773377234] [2024-11-28 04:32:16,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773377234] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:32:16,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1845816380] [2024-11-28 04:32:16,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:16,411 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:32:16,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:32:16,413 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:32:16,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2024-11-28 04:32:19,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:19,931 INFO L256 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-11-28 04:32:19,939 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:19,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 04:32:20,100 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-28 04:32:20,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-28 04:32:20,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:32:20,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-11-28 04:32:21,420 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:32:21,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:32:21,569 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:32:21,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:32:21,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 04:32:21,644 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:32:21,644 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:32:21,727 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2982 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_2982) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-28 04:32:22,126 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3028 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2982 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3028))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2982)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:32:22,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1845816380] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:32:22,128 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:32:22,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 18 [2024-11-28 04:32:22,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249006475] [2024-11-28 04:32:22,128 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:32:22,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:32:22,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:32:22,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:32:22,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=347, Unknown=15, NotChecked=210, Total=650 [2024-11-28 04:32:22,129 INFO L87 Difference]: Start difference. First operand 1031 states and 1110 transitions. Second operand has 19 states, 16 states have (on average 7.9375) internal successors, (127), 19 states have internal predecessors, (127), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:32:29,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:29,536 INFO L93 Difference]: Finished difference Result 1032 states and 1111 transitions. [2024-11-28 04:32:29,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:32:29,536 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 7.9375) internal successors, (127), 19 states have internal predecessors, (127), 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 123 [2024-11-28 04:32:29,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:29,538 INFO L225 Difference]: With dead ends: 1032 [2024-11-28 04:32:29,538 INFO L226 Difference]: Without dead ends: 1032 [2024-11-28 04:32:29,538 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 233 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=91, Invalid=420, Unknown=15, NotChecked=230, Total=756 [2024-11-28 04:32:29,539 INFO L435 NwaCegarLoop]: 562 mSDtfsCounter, 577 mSDsluCounter, 5034 mSDsCounter, 0 mSdLazyCounter, 3833 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 5596 SdHoareTripleChecker+Invalid, 3839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 3833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:29,539 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 5596 Invalid, 3839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 3833 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2024-11-28 04:32:29,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1032 states. [2024-11-28 04:32:29,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1032 to 1030. [2024-11-28 04:32:29,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1030 states, 706 states have (on average 1.5609065155807365) internal successors, (1102), 1024 states have internal predecessors, (1102), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:32:29,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 1030 states and 1109 transitions. [2024-11-28 04:32:29,552 INFO L78 Accepts]: Start accepts. Automaton has 1030 states and 1109 transitions. Word has length 123 [2024-11-28 04:32:29,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:29,552 INFO L471 AbstractCegarLoop]: Abstraction has 1030 states and 1109 transitions. [2024-11-28 04:32:29,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 7.9375) internal successors, (127), 19 states have internal predecessors, (127), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:32:29,552 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1109 transitions. [2024-11-28 04:32:29,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-28 04:32:29,553 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:29,553 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:29,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2024-11-28 04:32:29,766 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-28 04:32:29,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:32:29,954 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr85REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-28 04:32:29,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:29,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1529868865, now seen corresponding path program 1 times [2024-11-28 04:32:29,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:32:29,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [486107539] [2024-11-28 04:32:29,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:29,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:32:29,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:32:29,957 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:32:29,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-28 04:32:30,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:30,516 INFO L256 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 112 conjuncts are in the unsatisfiable core [2024-11-28 04:32:30,528 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:30,663 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:32:30,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:32:30,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:32:30,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:32:30,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-28 04:32:30,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 04:32:30,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 04:32:31,699 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:32:31,700 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 [2024-11-28 04:32:31,710 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:32:31,840 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:32:31,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:32:31,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:32:31,882 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-28 04:32:31,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 04:32:31,923 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:32:31,923 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:32:32,058 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_3497 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_3497) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse0 (_ bv4 32)) (bvadd .cse0 (_ bv8 32))))) (forall ((v_ArrVal_3497 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3498 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_3497) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv8 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_3498) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:32:32,088 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_3497 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_3497) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv4 32) .cse0) (bvadd (_ bv8 32) .cse0)))) (forall ((v_ArrVal_3497 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3498 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_3497) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_3498) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-28 04:32:33,920 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:32:33,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486107539] [2024-11-28 04:32:33,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [486107539] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:32:33,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [651085847] [2024-11-28 04:32:33,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:33,920 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:32:33,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:32:33,922 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:32:33,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2024-11-28 04:32:37,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:37,806 INFO L256 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 114 conjuncts are in the unsatisfiable core [2024-11-28 04:32:37,821 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:37,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 04:32:38,008 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:32:38,009 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:32:38,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:32:38,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-28 04:32:38,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:32:38,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 04:32:38,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 04:32:39,128 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:32:39,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:32:39,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:32:39,261 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:32:39,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:32:39,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:32:39,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-28 04:32:39,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 04:32:39,330 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:32:39,330 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:32:39,409 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_4062 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_4062) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse0 (_ bv4 32)) (bvadd .cse0 (_ bv8 32))))) (forall ((v_ArrVal_4061 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4062 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_4062) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv8 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_4061) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:32:39,456 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_4061 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4062 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_4062) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv8 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_4061) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_4062 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_4062) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse2 (_ bv4 32)) (bvadd .cse2 (_ bv8 32)))))))) is different from false [2024-11-28 04:32:40,986 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_4061 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4062 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4153 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4154 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4153))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4154) .cse0 v_ArrVal_4062) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv8 32)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_4061) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_4062 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4153 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4154 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4154) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4153) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4062) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse3 (_ bv4 32)) (bvadd .cse3 (_ bv8 32))))))) is different from false [2024-11-28 04:32:40,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [651085847] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:32:40,995 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:32:40,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 10 [2024-11-28 04:32:40,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424270750] [2024-11-28 04:32:40,995 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:32:40,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:32:40,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:32:40,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:32:40,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=144, Unknown=15, NotChecked=140, Total=342 [2024-11-28 04:32:40,996 INFO L87 Difference]: Start difference. First operand 1030 states and 1109 transitions. Second operand has 11 states, 9 states have (on average 12.11111111111111) internal successors, (109), 11 states have internal predecessors, (109), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:32:50,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:50,796 INFO L93 Difference]: Finished difference Result 1029 states and 1108 transitions. [2024-11-28 04:32:50,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:32:50,796 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 12.11111111111111) internal successors, (109), 11 states have internal predecessors, (109), 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 123 [2024-11-28 04:32:50,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:50,798 INFO L225 Difference]: With dead ends: 1029 [2024-11-28 04:32:50,798 INFO L226 Difference]: Without dead ends: 1029 [2024-11-28 04:32:50,798 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 238 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=79, Invalid=304, Unknown=17, NotChecked=200, Total=600 [2024-11-28 04:32:50,798 INFO L435 NwaCegarLoop]: 561 mSDtfsCounter, 582 mSDsluCounter, 2966 mSDsCounter, 0 mSdLazyCounter, 4193 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 3527 SdHoareTripleChecker+Invalid, 4199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:50,798 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 3527 Invalid, 4199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4193 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2024-11-28 04:32:50,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2024-11-28 04:32:50,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 1029. [2024-11-28 04:32:50,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1029 states, 706 states have (on average 1.5594900849858357) internal successors, (1101), 1023 states have internal predecessors, (1101), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:32:50,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1029 states to 1029 states and 1108 transitions. [2024-11-28 04:32:50,810 INFO L78 Accepts]: Start accepts. Automaton has 1029 states and 1108 transitions. Word has length 123 [2024-11-28 04:32:50,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:50,810 INFO L471 AbstractCegarLoop]: Abstraction has 1029 states and 1108 transitions. [2024-11-28 04:32:50,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 12.11111111111111) internal successors, (109), 11 states have internal predecessors, (109), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:32:50,811 INFO L276 IsEmpty]: Start isEmpty. Operand 1029 states and 1108 transitions. [2024-11-28 04:32:50,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 04:32:50,812 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:50,812 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:50,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (33)] Ended with exit code 0 [2024-11-28 04:32:51,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-28 04:32:51,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:32:51,213 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr88REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-28 04:32:51,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:51,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1869885871, now seen corresponding path program 1 times [2024-11-28 04:32:51,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:32:51,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1650898643] [2024-11-28 04:32:51,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:51,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:32:51,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:32:51,216 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:32:51,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-28 04:32:51,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:51,844 INFO L256 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-11-28 04:32:51,851 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:51,968 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:32:51,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:32:51,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:32:52,285 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:32:52,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-28 04:32:52,340 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:32:52,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-28 04:32:52,405 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:32:52,405 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:32:52,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 04:32:52,476 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:32:52,476 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:32:52,526 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2024-11-28 04:32:52,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2024-11-28 04:32:52,532 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4592 (Array (_ BitVec 32) (_ BitVec 32)))) (= (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_4592) |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 [2024-11-28 04:32:52,541 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4592 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_4592) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse0)))) is different from false [2024-11-28 04:32:52,554 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4591 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4592 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_4591)) (.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_4592) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) .cse1)))) is different from false [2024-11-28 04:32:52,565 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4591 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4592 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_4591))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (store .cse1 .cse0 v_ArrVal_4592) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) is different from false [2024-11-28 04:32:52,971 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4638 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4591 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4592 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4638))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_4591)))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= (select (select (store .cse0 .cse1 v_ArrVal_4592) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) .cse1))))) is different from false [2024-11-28 04:32:52,973 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:32:52,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650898643] [2024-11-28 04:32:52,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650898643] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:32:52,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1357983376] [2024-11-28 04:32:52,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:52,974 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:32:52,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:32:52,975 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:32:52,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2024-11-28 04:33:05,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:05,688 INFO L256 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-11-28 04:33:05,697 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:33:05,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 04:33:05,855 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-28 04:33:05,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-28 04:33:05,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:33:06,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-11-28 04:33:07,147 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:33:07,147 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:33:07,339 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:33:07,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:33:07,465 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:33:07,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:33:07,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 04:33:07,566 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:33:07,567 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:33:07,674 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5078 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_5078) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (_ bv0 1))) is different from false [2024-11-28 04:33:07,691 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5077 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5078 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_5077))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5078)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:33:07,704 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5077 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5078 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5077))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5078)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:33:08,169 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5124 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5077 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5078 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5124))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5077)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5078)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:33:08,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1357983376] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:33:08,173 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:33:08,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 20 [2024-11-28 04:33:08,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625270495] [2024-11-28 04:33:08,173 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:33:08,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 04:33:08,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:33:08,174 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 04:33:08,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=426, Unknown=19, NotChecked=450, Total=992 [2024-11-28 04:33:08,175 INFO L87 Difference]: Start difference. First operand 1029 states and 1108 transitions. Second operand has 21 states, 18 states have (on average 7.388888888888889) internal successors, (133), 21 states have internal predecessors, (133), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:33:20,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:33:20,334 INFO L93 Difference]: Finished difference Result 1030 states and 1109 transitions. [2024-11-28 04:33:20,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:33:20,334 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 7.388888888888889) internal successors, (133), 21 states have internal predecessors, (133), 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 126 [2024-11-28 04:33:20,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:33:20,336 INFO L225 Difference]: With dead ends: 1030 [2024-11-28 04:33:20,336 INFO L226 Difference]: Without dead ends: 1030 [2024-11-28 04:33:20,337 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 239 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=110, Invalid=507, Unknown=19, NotChecked=486, Total=1122 [2024-11-28 04:33:20,337 INFO L435 NwaCegarLoop]: 561 mSDtfsCounter, 574 mSDsluCounter, 6840 mSDsCounter, 0 mSdLazyCounter, 5340 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 7401 SdHoareTripleChecker+Invalid, 5346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 5340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:33:20,338 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [577 Valid, 7401 Invalid, 5346 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 5340 Invalid, 0 Unknown, 0 Unchecked, 12.0s Time] [2024-11-28 04:33:20,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2024-11-28 04:33:20,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 1028. [2024-11-28 04:33:20,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 706 states have (on average 1.5580736543909348) internal successors, (1100), 1022 states have internal predecessors, (1100), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:33:20,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1107 transitions. [2024-11-28 04:33:20,352 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1107 transitions. Word has length 126 [2024-11-28 04:33:20,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:33:20,352 INFO L471 AbstractCegarLoop]: Abstraction has 1028 states and 1107 transitions. [2024-11-28 04:33:20,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 7.388888888888889) internal successors, (133), 21 states have internal predecessors, (133), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:33:20,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1107 transitions. [2024-11-28 04:33:20,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 04:33:20,353 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:33:20,354 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:33:20,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (35)] Ended with exit code 0 [2024-11-28 04:33:20,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-11-28 04:33:20,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:33:20,755 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr89REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-28 04:33:20,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:20,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1869885872, now seen corresponding path program 1 times [2024-11-28 04:33:20,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:33:20,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [99793134] [2024-11-28 04:33:20,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:20,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:33:20,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:33:20,757 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:33:20,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-28 04:33:21,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:21,491 INFO L256 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 115 conjuncts are in the unsatisfiable core [2024-11-28 04:33:21,504 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:33:21,626 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:33:21,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:33:21,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:33:21,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-28 04:33:21,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:33:21,792 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 04:33:21,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 04:33:22,623 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:33:22,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:33:22,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:33:22,749 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:33:22,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:33:22,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:33:22,865 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:33:22,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:33:22,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:33:22,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-28 04:33:22,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 04:33:22,945 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:33:22,945 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:33:23,096 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5610 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5611 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_5611) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_5610) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_5611 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_5611) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv8 32) .cse1) (bvadd (_ bv12 32) .cse1)))))) is different from false [2024-11-28 04:33:23,121 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_5611 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_5611) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_5610 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5611 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_5611) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_5610) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-28 04:33:23,214 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5608 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5610 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5611 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5609 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_5609))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_5608) .cse0 v_ArrVal_5611) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_5610) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_5608 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5611 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5609 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_5608) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_5609) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5611) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse3) (bvadd (_ bv12 32) .cse3)))))) is different from false [2024-11-28 04:33:23,271 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_5608 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5610 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5611 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5609 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_5609))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_5608) .cse1 v_ArrVal_5611) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_5610) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (forall ((v_ArrVal_5608 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5611 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5609 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_5608) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_5609) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_5611) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse4) (bvadd (_ bv12 32) .cse4))))))) is different from false [2024-11-28 04:33:27,098 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:33:27,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99793134] [2024-11-28 04:33:27,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99793134] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:33:27,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [864038833] [2024-11-28 04:33:27,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:27,099 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:33:27,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:33:27,100 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:33:27,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2024-11-28 04:33:40,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:40,862 INFO L256 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 117 conjuncts are in the unsatisfiable core [2024-11-28 04:33:40,875 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:33:40,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 04:33:41,451 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:33:41,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:33:41,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:33:41,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:33:41,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-28 04:33:41,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 04:33:41,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 04:33:43,832 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:33:43,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:33:43,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:33:44,050 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:33:44,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:33:44,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:33:44,242 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:33:44,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:33:44,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:33:44,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-28 04:33:44,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 04:33:44,352 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:33:44,352 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:33:44,475 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6190 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6191 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_6190) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_6191) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_6190 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_6190) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv8 32) .cse1) (bvadd (_ bv12 32) .cse1)))))) is different from false [2024-11-28 04:33:44,523 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_6190 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6191 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_6190) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv12 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_6191) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_6190 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_6190) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse2 (_ bv8 32)) (bvadd .cse2 (_ bv12 32)))))))) is different from false [2024-11-28 04:33:44,622 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6190 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6191 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6188 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6189 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_6188))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_6189) .cse0 v_ArrVal_6190) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv12 32)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_6191) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_6190 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6188 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6189 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_6189) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_6188) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6190) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse3 (_ bv8 32)) (bvadd .cse3 (_ bv12 32))))))) is different from false [2024-11-28 04:33:44,676 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_6190 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6191 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6188 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6189 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_6188))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_6189) .cse1 v_ArrVal_6190) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv12 32)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_6191) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (forall ((v_ArrVal_6190 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6188 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6189 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_6189) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_6188) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6190) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd .cse4 (_ bv8 32)) (bvadd .cse4 (_ bv12 32)))))))) is different from false [2024-11-28 04:33:47,353 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6282 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6283 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6190 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6188 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6189 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6282))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6283) .cse1 v_ArrVal_6189) (select (select (store .cse2 .cse1 v_ArrVal_6188) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_6190))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd .cse0 (_ bv8 32)) (bvadd .cse0 (_ bv12 32))))) (forall ((v_ArrVal_6282 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6283 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6190 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6191 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6188 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6189 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6282))) (let ((.cse4 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse6 (store .cse7 .cse4 v_ArrVal_6188))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6283) .cse4 v_ArrVal_6189) .cse5 v_ArrVal_6190) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) (_ bv12 32)) (select |c_#length| (select (select (store .cse6 .cse5 v_ArrVal_6191) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) is different from false [2024-11-28 04:33:47,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [864038833] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:33:47,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:33:47,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 11 [2024-11-28 04:33:47,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838574016] [2024-11-28 04:33:47,370 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:33:47,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:33:47,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:33:47,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:33:47,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=173, Unknown=18, NotChecked=306, Total=552 [2024-11-28 04:33:47,371 INFO L87 Difference]: Start difference. First operand 1028 states and 1107 transitions. Second operand has 12 states, 10 states have (on average 11.2) internal successors, (112), 12 states have internal predecessors, (112), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:34:09,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:09,561 INFO L93 Difference]: Finished difference Result 1027 states and 1106 transitions. [2024-11-28 04:34:09,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:34:09,562 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 11.2) internal successors, (112), 12 states have internal predecessors, (112), 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 126 [2024-11-28 04:34:09,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:09,564 INFO L225 Difference]: With dead ends: 1027 [2024-11-28 04:34:09,564 INFO L226 Difference]: Without dead ends: 1027 [2024-11-28 04:34:09,565 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 245 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=98, Invalid=381, Unknown=19, NotChecked=432, Total=930 [2024-11-28 04:34:09,565 INFO L435 NwaCegarLoop]: 560 mSDtfsCounter, 580 mSDsluCounter, 2626 mSDsCounter, 0 mSdLazyCounter, 3692 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 3186 SdHoareTripleChecker+Invalid, 3698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 3692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:09,565 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [582 Valid, 3186 Invalid, 3698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 3692 Invalid, 0 Unknown, 0 Unchecked, 20.5s Time] [2024-11-28 04:34:09,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-11-28 04:34:09,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1027. [2024-11-28 04:34:09,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 706 states have (on average 1.5566572237960339) internal successors, (1099), 1021 states have internal predecessors, (1099), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:34:09,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1106 transitions. [2024-11-28 04:34:09,580 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1106 transitions. Word has length 126 [2024-11-28 04:34:09,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:09,580 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1106 transitions. [2024-11-28 04:34:09,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 11.2) internal successors, (112), 12 states have internal predecessors, (112), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:34:09,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1106 transitions. [2024-11-28 04:34:09,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-28 04:34:09,582 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:09,582 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:09,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-11-28 04:34:09,818 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (37)] Ended with exit code 0 [2024-11-28 04:34:09,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 04:34:09,983 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr92REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-28 04:34:09,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:09,983 INFO L85 PathProgramCache]: Analyzing trace with hash 44488517, now seen corresponding path program 1 times [2024-11-28 04:34:09,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:34:09,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1337086912] [2024-11-28 04:34:09,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:09,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:09,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:34:09,986 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:34:09,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-28 04:34:10,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:10,871 INFO L256 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-11-28 04:34:10,880 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:11,434 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:34:11,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:34:11,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:34:13,410 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:34:13,411 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:34:13,747 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:34:13,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:34:14,011 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:34:14,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:34:14,274 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:34:14,274 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 44 treesize of output 43 [2024-11-28 04:34:14,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 04:34:14,429 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:34:14,429 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:34:14,770 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6737 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_6737) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-28 04:34:14,806 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6736 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6737 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_6736))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6737)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:34:14,832 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6736 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6737 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6736))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6737)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:34:14,871 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6735 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6736 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6737 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_6735))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6736)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6737)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:34:14,900 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6735 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6736 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6737 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6735))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6736)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6737)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:34:15,905 INFO L349 Elim1Store]: treesize reduction 7, result has 93.2 percent of original size [2024-11-28 04:34:15,906 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 109 treesize of output 108 [2024-11-28 04:34:15,953 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6735 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6736 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6737 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6783 (Array (_ BitVec 32) (_ BitVec 32)))) (= (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6783))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6735)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6736)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6737)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) |c_ULTIMATE.start_main_#t~mem36#1.base|)) is different from false [2024-11-28 04:34:15,959 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:34:15,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337086912] [2024-11-28 04:34:15,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337086912] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:34:15,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [990320922] [2024-11-28 04:34:15,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:15,959 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:34:15,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:34:15,962 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:34:15,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2024-11-28 04:34:33,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:33,906 INFO L256 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-11-28 04:34:33,915 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:33,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 04:34:34,495 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-28 04:34:34,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-28 04:34:34,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:34:35,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-11-28 04:34:38,005 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:34:38,006 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:34:38,486 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:34:38,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:34:38,835 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:34:38,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:34:39,189 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:34:39,190 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 [2024-11-28 04:34:39,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 04:34:39,470 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:34:39,470 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:34:39,719 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6737 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7238 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_7238))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6737)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:34:40,024 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6737 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7237 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7238 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_7237))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7238)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6737)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2024-11-28 04:34:40,052 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6737 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7237 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7238 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7237))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7238)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6737)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:34:40,941 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7285 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6737 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7237 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7238 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7285))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7237)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7238)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6737)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:34:40,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [990320922] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:34:40,951 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:34:40,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 23 [2024-11-28 04:34:40,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775940639] [2024-11-28 04:34:40,952 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:34:40,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-28 04:34:40,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:34:40,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-28 04:34:40,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=586, Unknown=27, NotChecked=590, Total=1332 [2024-11-28 04:34:40,953 INFO L87 Difference]: Start difference. First operand 1027 states and 1106 transitions. Second operand has 24 states, 21 states have (on average 6.619047619047619) internal successors, (139), 23 states have internal predecessors, (139), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:35:09,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:09,754 INFO L93 Difference]: Finished difference Result 1028 states and 1107 transitions. [2024-11-28 04:35:09,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:35:09,754 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 6.619047619047619) internal successors, (139), 23 states have internal predecessors, (139), 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 129 [2024-11-28 04:35:09,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:09,756 INFO L225 Difference]: With dead ends: 1028 [2024-11-28 04:35:09,756 INFO L226 Difference]: Without dead ends: 1028 [2024-11-28 04:35:09,757 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 245 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=155, Invalid=788, Unknown=27, NotChecked=670, Total=1640 [2024-11-28 04:35:09,757 INFO L435 NwaCegarLoop]: 558 mSDtfsCounter, 567 mSDsluCounter, 6197 mSDsCounter, 0 mSdLazyCounter, 5160 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 6755 SdHoareTripleChecker+Invalid, 5169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 5160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:09,757 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [570 Valid, 6755 Invalid, 5169 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 5160 Invalid, 0 Unknown, 0 Unchecked, 28.2s Time] [2024-11-28 04:35:09,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2024-11-28 04:35:09,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 1026. [2024-11-28 04:35:09,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1026 states, 706 states have (on average 1.5552407932011332) internal successors, (1098), 1020 states have internal predecessors, (1098), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:35:09,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1105 transitions. [2024-11-28 04:35:09,767 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1105 transitions. Word has length 129 [2024-11-28 04:35:09,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:09,767 INFO L471 AbstractCegarLoop]: Abstraction has 1026 states and 1105 transitions. [2024-11-28 04:35:09,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 6.619047619047619) internal successors, (139), 23 states have internal predecessors, (139), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:35:09,768 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1105 transitions. [2024-11-28 04:35:09,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-28 04:35:09,768 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:09,768 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:09,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (39)] Ended with exit code 0 [2024-11-28 04:35:09,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-11-28 04:35:10,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:10,169 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr93REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-28 04:35:10,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:10,170 INFO L85 PathProgramCache]: Analyzing trace with hash 44488518, now seen corresponding path program 1 times [2024-11-28 04:35:10,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:35:10,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2093580330] [2024-11-28 04:35:10,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:10,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:10,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:10,173 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:10,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-28 04:35:11,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:11,097 INFO L256 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 118 conjuncts are in the unsatisfiable core [2024-11-28 04:35:11,110 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:11,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:35:11,593 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:35:11,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:35:11,681 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:35:11,692 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-28 04:35:12,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 04:35:12,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 04:35:14,165 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:35:14,166 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:35:14,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:35:14,504 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:35:14,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:35:14,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:35:14,808 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:35:14,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:35:14,831 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:35:15,126 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:35:15,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:35:15,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:35:15,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-28 04:35:15,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 04:35:15,343 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:35:15,343 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:15,726 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7788 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_7788) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_7789 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7788 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv24 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_7788) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_7789) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:35:15,777 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_7789 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7788 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_7788) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv24 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_7789) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_7788 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_7788) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse2 (_ bv20 32)) (bvadd .cse2 (_ bv24 32)))))))) is different from false [2024-11-28 04:35:16,412 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_7789 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7788 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7787 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7786 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_7786))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv24 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_7787) .cse1 v_ArrVal_7788) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_7789) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (forall ((v_ArrVal_7788 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7787 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7786 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_7787) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_7786) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_7788) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv20 32) .cse4) (bvadd (_ bv24 32) .cse4))))))) is different from false [2024-11-28 04:35:16,919 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7788 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7787 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7786 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7785 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7784 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_7785))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_7784) .cse1 v_ArrVal_7787) (select (select (store .cse2 .cse1 v_ArrVal_7786) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_7788))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd .cse0 (_ bv20 32)) (bvadd .cse0 (_ bv24 32))))) (forall ((v_ArrVal_7789 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7788 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7787 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7786 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7785 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7784 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_7785))) (let ((.cse4 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse6 (store .cse7 .cse4 v_ArrVal_7786))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_7784) .cse4 v_ArrVal_7787) .cse5 v_ArrVal_7788) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) (_ bv24 32)) (select |c_#length| (select (select (store .cse6 .cse5 v_ArrVal_7789) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) is different from false [2024-11-28 04:35:25,267 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7880 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7789 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7788 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7787 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7786 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7785 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7784 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7881 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7881))) (let ((.cse0 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse5 (store .cse6 .cse0 v_ArrVal_7785))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_7786))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7880) .cse0 v_ArrVal_7784) .cse1 v_ArrVal_7787) .cse2 v_ArrVal_7788) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse4 .cse2 v_ArrVal_7789) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) (forall ((v_ArrVal_7880 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7788 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7787 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7786 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7785 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7784 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7881 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (select (select (let ((.cse11 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7881))) (let ((.cse8 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse10 (store .cse11 .cse8 v_ArrVal_7785))) (let ((.cse9 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7880) .cse8 v_ArrVal_7784) .cse9 v_ArrVal_7787) (select (select (store .cse10 .cse9 v_ArrVal_7786) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_7788))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv20 32) .cse7) (bvadd (_ bv24 32) .cse7)))))) is different from false [2024-11-28 04:35:25,308 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:35:25,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093580330] [2024-11-28 04:35:25,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2093580330] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:25,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [283446558] [2024-11-28 04:35:25,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:25,308 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:35:25,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:35:25,310 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:35:25,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2024-11-28 04:35:44,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:44,535 INFO L256 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 119 conjuncts are in the unsatisfiable core [2024-11-28 04:35:44,548 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:44,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 04:35:47,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:35:47,683 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:35:47,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:35:47,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:35:47,888 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-28 04:35:48,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 04:35:48,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 04:35:58,885 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:35:58,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:35:59,036 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:35:59,949 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:35:59,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:36:00,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:36:00,785 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:36:00,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:36:00,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:36:01,587 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:36:01,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 04:36:01,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:36:02,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-28 04:36:02,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 04:36:02,138 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:36:02,138 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:36:02,614 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8385 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_8385) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_8386 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8385 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv24 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_8385) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_8386) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:36:02,787 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_8385 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_8385) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd .cse0 (_ bv20 32)) (bvadd .cse0 (_ bv24 32))))) (forall ((v_ArrVal_8386 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8385 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_8385) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv24 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_8386) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-28 04:36:03,078 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8386 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8385 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8384 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8383 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_8383))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv24 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_8384) .cse0 v_ArrVal_8385) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_8386) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_8385 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8384 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8383 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_8384) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_8383) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8385) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv20 32) .cse3) (bvadd (_ bv24 32) .cse3)))))) is different from false [2024-11-28 04:36:03,305 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_8385 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8384 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8383 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_8384) (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_8383) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_8385) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_8386 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8385 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8384 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8383 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_8383))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv24 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_8384) .cse3 v_ArrVal_8385) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse4 .cse3 v_ArrVal_8386) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))))) is different from false [2024-11-28 04:36:03,828 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8386 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8385 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8384 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8383 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8382 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8381 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_8381))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse3 (store .cse4 .cse0 v_ArrVal_8383))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_8382) .cse0 v_ArrVal_8384) .cse1 v_ArrVal_8385) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv24 32)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_8386) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))) (forall ((v_ArrVal_8385 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8384 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8383 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8382 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8381 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (select (select (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_8381))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_8382) .cse6 v_ArrVal_8384) (select (select (store .cse7 .cse6 v_ArrVal_8383) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_8385))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd .cse5 (_ bv20 32)) (bvadd .cse5 (_ bv24 32))))))) is different from false [2024-11-28 04:36:04,382 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (and (forall ((v_ArrVal_8386 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8385 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8384 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8383 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8382 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8381 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_8381))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_8383))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (select (select (store (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_8382) .cse1 v_ArrVal_8384) .cse2 v_ArrVal_8385) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) (_ bv24 32)) (select |c_#length| (select (select (store .cse4 .cse2 v_ArrVal_8386) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))) (forall ((v_ArrVal_8385 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8384 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8383 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8382 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8381 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (select (select (let ((.cse8 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_8381))) (let ((.cse7 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_8382) .cse7 v_ArrVal_8384) (select (select (store .cse8 .cse7 v_ArrVal_8383) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_8385))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd .cse6 (_ bv20 32)) (bvadd .cse6 (_ bv24 32)))))))) is different from false [2024-11-28 04:36:10,389 WARN L286 SmtUtils]: Spent 5.80s on a formula simplification that was a NOOP. DAG size: 356 (called from [L 276] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2024-11-28 04:36:12,975 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8386 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8385 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8384 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8383 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8382 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8381 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8478 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8477 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8477))) (let ((.cse0 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse5 (store .cse6 .cse0 v_ArrVal_8381))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_8383))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8478) .cse0 v_ArrVal_8382) .cse1 v_ArrVal_8384) .cse2 v_ArrVal_8385) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse4 .cse2 v_ArrVal_8386) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) (forall ((v_ArrVal_8385 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8384 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8383 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8382 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8381 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8478 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8477 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (select (select (let ((.cse11 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8477))) (let ((.cse8 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse10 (store .cse11 .cse8 v_ArrVal_8381))) (let ((.cse9 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8478) .cse8 v_ArrVal_8382) .cse9 v_ArrVal_8384) (select (select (store .cse10 .cse9 v_ArrVal_8383) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_8385))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv20 32) .cse7) (bvadd (_ bv24 32) .cse7)))))) is different from false [2024-11-28 04:36:13,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [283446558] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:36:13,020 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:36:13,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 12 [2024-11-28 04:36:13,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481780393] [2024-11-28 04:36:13,021 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:36:13,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:36:13,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:36:13,021 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:36:13,022 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=217, Unknown=31, NotChecked=492, Total=812 [2024-11-28 04:36:13,022 INFO L87 Difference]: Start difference. First operand 1026 states and 1105 transitions. Second operand has 13 states, 11 states have (on average 10.454545454545455) internal successors, (115), 13 states have internal predecessors, (115), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:38:33,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:33,796 INFO L93 Difference]: Finished difference Result 1025 states and 1104 transitions. [2024-11-28 04:38:33,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:38:33,797 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 10.454545454545455) internal successors, (115), 13 states have internal predecessors, (115), 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 129 [2024-11-28 04:38:33,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:33,799 INFO L225 Difference]: With dead ends: 1025 [2024-11-28 04:38:33,799 INFO L226 Difference]: Without dead ends: 1025 [2024-11-28 04:38:33,800 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 252 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 12 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 17.3s TimeCoverageRelationStatistics Valid=128, Invalid=487, Unknown=33, NotChecked=684, Total=1332 [2024-11-28 04:38:33,801 INFO L435 NwaCegarLoop]: 559 mSDtfsCounter, 578 mSDsluCounter, 3624 mSDsCounter, 0 mSdLazyCounter, 5165 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 132.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 4183 SdHoareTripleChecker+Invalid, 5171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 5165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 134.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:33,801 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 4183 Invalid, 5171 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 5165 Invalid, 0 Unknown, 0 Unchecked, 134.9s Time] [2024-11-28 04:38:33,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2024-11-28 04:38:33,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 1025. [2024-11-28 04:38:33,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 706 states have (on average 1.5538243626062322) internal successors, (1097), 1019 states have internal predecessors, (1097), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:38:33,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1104 transitions. [2024-11-28 04:38:33,814 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1104 transitions. Word has length 129 [2024-11-28 04:38:33,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:33,814 INFO L471 AbstractCegarLoop]: Abstraction has 1025 states and 1104 transitions. [2024-11-28 04:38:33,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 10.454545454545455) internal successors, (115), 13 states have internal predecessors, (115), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:38:33,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1104 transitions. [2024-11-28 04:38:33,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-28 04:38:33,815 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:33,815 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:33,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (41)] Forceful destruction successful, exit code 0 [2024-11-28 04:38:34,032 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2024-11-28 04:38:34,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:38:34,216 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr96REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-28 04:38:34,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:34,216 INFO L85 PathProgramCache]: Analyzing trace with hash 433145607, now seen corresponding path program 1 times [2024-11-28 04:38:34,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:38:34,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1552274769] [2024-11-28 04:38:34,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:34,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:38:34,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:38:34,219 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:38:34,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-28 04:38:35,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:35,270 INFO L256 TraceCheckSpWp]: Trace formula consists of 931 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-11-28 04:38:35,278 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:38:37,949 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:38:37,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:38:38,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:38:43,700 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:38:43,700 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 31 treesize of output 32 [2024-11-28 04:38:44,708 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:38:44,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-28 04:38:45,744 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:38:45,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-28 04:38:46,800 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:38:46,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:38:48,765 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:38:48,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:38:49,036 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 04:38:50,150 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-28 04:38:50,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2024-11-28 04:38:50,201 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:38:50,201 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:38:51,835 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8950 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem41#1.base| v_ArrVal_8950) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) is different from false [2024-11-28 04:38:51,948 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8950 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_8950) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-28 04:38:52,253 INFO L349 Elim1Store]: treesize reduction 7, result has 77.4 percent of original size [2024-11-28 04:38:52,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2024-11-28 04:38:52,344 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8949 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8950 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_#t~mem40#1.base| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_8949))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8950)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) is different from false [2024-11-28 04:38:52,460 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8949 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8950 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse2 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| .cse2 v_ArrVal_8949))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8950)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse2)))) is different from false [2024-11-28 04:38:52,633 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8949 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8948 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8950 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_8948)) (.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (let ((.cse1 (store .cse3 .cse0 v_ArrVal_8949))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_8950)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))) is different from false [2024-11-28 04:38:52,753 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8949 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8948 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8950 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8948))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (let ((.cse0 (store .cse2 .cse3 v_ArrVal_8949))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8950)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse3))))) is different from false [2024-11-28 04:38:52,929 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8949 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8948 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8947 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8950 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse3 (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_8947))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_8948)))) (let ((.cse0 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (let ((.cse1 (store .cse3 .cse0 v_ArrVal_8949))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_8950)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) is different from false [2024-11-28 04:38:53,052 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8949 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8948 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8947 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8950 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse2 (let ((.cse4 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8947))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8948)))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (let ((.cse0 (store .cse2 .cse3 v_ArrVal_8949))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8950)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse3))))) is different from false [2024-11-28 04:38:56,181 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8949 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8948 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8947 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8997 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8950 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse2 (let ((.cse4 (let ((.cse5 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8997))) (store .cse5 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8947)))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8948)))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (let ((.cse0 (store .cse2 .cse3 v_ArrVal_8949))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8950)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse3))))) is different from false [2024-11-28 04:38:56,206 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:38:56,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552274769] [2024-11-28 04:38:56,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1552274769] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:38:56,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1512062177] [2024-11-28 04:38:56,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:56,207 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:38:56,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:38:56,209 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:38:56,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2024-11-28 04:39:06,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:06,397 INFO L256 TraceCheckSpWp]: Trace formula consists of 931 conjuncts, 72 conjuncts are in the unsatisfiable core [2024-11-28 04:39:06,407 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:39:06,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 04:39:09,830 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-28 04:39:09,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-28 04:39:10,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:39:13,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-11-28 04:39:29,832 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:39:29,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:39:32,247 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:39:32,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:39:33,993 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:39:33,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:39:35,735 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:39:35,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:39:37,543 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:39:37,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 04:39:37,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 04:39:39,930 INFO L349 Elim1Store]: treesize reduction 48, result has 32.4 percent of original size [2024-11-28 04:39:39,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 36 [2024-11-28 04:39:40,086 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:39:40,086 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:39:41,268 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9471 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem41#1.base| v_ArrVal_9471) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (_ bv0 1))) is different from false [2024-11-28 04:39:41,381 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9471 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_9471) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-28 04:39:41,548 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9471 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9470 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_9470))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9471)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2024-11-28 04:39:41,663 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9471 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9470 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9470))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9471)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:39:41,833 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9471 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9470 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9469 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_9469))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9470)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9471)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:39:41,947 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9471 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9470 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9469 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9469))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9470)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9471)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:39:42,116 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9471 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9470 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9469 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9468 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_9468))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9469)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9470)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9471)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 04:39:42,239 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9471 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9470 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9469 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9468 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9468))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9469)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9470)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9471)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (_ bv0 1))) is different from false [2024-11-28 04:39:46,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1512062177] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:39:46,529 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:39:46,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 25 [2024-11-28 04:39:46,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099628376] [2024-11-28 04:39:46,529 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:39:46,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-28 04:39:46,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:39:46,530 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-28 04:39:46,530 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=664, Unknown=17, NotChecked=1156, Total=1980 [2024-11-28 04:39:46,531 INFO L87 Difference]: Start difference. First operand 1025 states and 1104 transitions. Second operand has 26 states, 23 states have (on average 6.391304347826087) internal successors, (147), 25 states have internal predecessors, (147), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:41:35,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:41:35,130 INFO L93 Difference]: Finished difference Result 1026 states and 1105 transitions. [2024-11-28 04:41:35,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:41:35,131 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 23 states have (on average 6.391304347826087) internal successors, (147), 25 states have internal predecessors, (147), 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 133 [2024-11-28 04:41:35,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:41:35,134 INFO L225 Difference]: With dead ends: 1026 [2024-11-28 04:41:35,134 INFO L226 Difference]: Without dead ends: 1026 [2024-11-28 04:41:35,135 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 252 SyntacticMatches, 3 SemanticMatches, 45 ConstructedPredicates, 17 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 20.3s TimeCoverageRelationStatistics Valid=156, Invalid=765, Unknown=17, NotChecked=1224, Total=2162 [2024-11-28 04:41:35,135 INFO L435 NwaCegarLoop]: 559 mSDtfsCounter, 565 mSDsluCounter, 4910 mSDsCounter, 0 mSdLazyCounter, 4021 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 106.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 5469 SdHoareTripleChecker+Invalid, 4030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 4021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 107.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:41:35,135 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 5469 Invalid, 4030 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 4021 Invalid, 0 Unknown, 0 Unchecked, 107.5s Time] [2024-11-28 04:41:35,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026 states. [2024-11-28 04:41:35,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1026 to 1024. [2024-11-28 04:41:35,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1024 states, 706 states have (on average 1.5524079320113315) internal successors, (1096), 1018 states have internal predecessors, (1096), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:41:35,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 1103 transitions. [2024-11-28 04:41:35,145 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 1103 transitions. Word has length 133 [2024-11-28 04:41:35,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:41:35,145 INFO L471 AbstractCegarLoop]: Abstraction has 1024 states and 1103 transitions. [2024-11-28 04:41:35,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 23 states have (on average 6.391304347826087) internal successors, (147), 25 states have internal predecessors, (147), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:41:35,145 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 1103 transitions. [2024-11-28 04:41:35,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-28 04:41:35,146 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:41:35,147 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:41:35,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2024-11-28 04:41:35,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (43)] Forceful destruction successful, exit code 0 [2024-11-28 04:41:35,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 04:41:35,547 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr97REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-28 04:41:35,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:41:35,548 INFO L85 PathProgramCache]: Analyzing trace with hash 433145608, now seen corresponding path program 1 times [2024-11-28 04:41:35,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:41:35,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [820767482] [2024-11-28 04:41:35,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:35,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:35,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:41:35,551 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:41:35,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-11-28 04:41:36,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:41:36,609 INFO L256 TraceCheckSpWp]: Trace formula consists of 931 conjuncts, 124 conjuncts are in the unsatisfiable core [2024-11-28 04:41:36,622 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:41:39,239 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:41:39,532 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:41:39,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:41:40,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 04:41:40,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-28 04:41:41,831 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 04:41:41,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 04:41:56,315 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:41:56,315 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 75 treesize of output 68 [2024-11-28 04:41:56,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:41:59,172 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:41:59,172 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 75 treesize of output 68 [2024-11-28 04:41:59,281 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:42:01,254 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:42:01,254 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 75 treesize of output 68 [2024-11-28 04:42:01,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:42:03,509 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:42:03,510 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 75 treesize of output 68 [2024-11-28 04:42:03,628 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:42:05,804 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 04:42:05,805 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 75 treesize of output 68 [2024-11-28 04:42:05,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 04:42:06,528 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 44 treesize of output 20 [2024-11-28 04:42:06,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 04:42:07,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:42:08,162 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2024-11-28 04:42:08,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 21 [2024-11-28 04:42:08,463 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:42:08,463 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:42:09,221 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 04:42:09,221 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:42:14,746 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_10041 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32)) (v_ArrVal_10040 (Array (_ BitVec 32) (_ BitVec 32)))) (or (forall ((v_ArrVal_10042 (_ BitVec 32))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem41#1.base| v_ArrVal_10041) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) (_ bv4 32)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc43#1.base_8| v_ArrVal_10042) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem41#1.base| v_ArrVal_10040) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|))))) (or (forall ((v_ArrVal_10041 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem41#1.base| v_ArrVal_10041) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule .cse1 (bvadd .cse1 (_ bv4 32))))) (forall ((|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|))))))) is different from false [2024-11-28 04:42:15,170 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (or (forall ((v_ArrVal_10041 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_10041) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule .cse0 (bvadd (_ bv4 32) .cse0)))) (forall ((|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|))))) (forall ((v_ArrVal_10041 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32)) (v_ArrVal_10040 (Array (_ BitVec 32) (_ BitVec 32)))) (or (forall ((v_ArrVal_10042 (_ BitVec 32))) (bvule (bvadd (_ bv4 32) (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_10041) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc43#1.base_8| v_ArrVal_10042) (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_10040) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|)))))))) is different from false [2024-11-28 04:42:15,860 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (or (forall ((|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|)))) (forall ((v_ArrVal_10041 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10038 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10039 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_10038) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_10039) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_10041) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule .cse0 (bvadd (_ bv4 32) .cse0))))) (forall ((v_ArrVal_10041 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10038 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10039 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32)) (v_ArrVal_10040 (Array (_ BitVec 32) (_ BitVec 32)))) (or (forall ((v_ArrVal_10042 (_ BitVec 32))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_10039))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv4 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_10038) .cse2 v_ArrVal_10041) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc43#1.base_8| v_ArrVal_10042) (select (select (store .cse3 .cse2 v_ArrVal_10040) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|))))))) is different from false [2024-11-28 04:42:16,254 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (or (forall ((v_ArrVal_10041 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10038 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10039 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_10038) (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_10039) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_10041) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule .cse0 (bvadd (_ bv4 32) .cse0)))) (forall ((|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|))))) (forall ((v_ArrVal_10041 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10038 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10039 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32)) (v_ArrVal_10040 (Array (_ BitVec 32) (_ BitVec 32)))) (or (forall ((v_ArrVal_10042 (_ BitVec 32))) (let ((.cse4 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_10039))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv4 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_10038) .cse3 v_ArrVal_10041) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc43#1.base_8| v_ArrVal_10042) (select (select (store .cse4 .cse3 v_ArrVal_10040) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|)))))))) is different from false [2024-11-28 04:42:20,941 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_10041 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10036 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10037 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10038 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10039 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32)) (v_ArrVal_10040 (Array (_ BitVec 32) (_ BitVec 32)))) (or (forall ((v_ArrVal_10042 (_ BitVec 32))) (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_10036))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse3 (store .cse4 .cse0 v_ArrVal_10039))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv4 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_10037) .cse0 v_ArrVal_10038) .cse1 v_ArrVal_10041) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc43#1.base_8| v_ArrVal_10042) (select (select (store .cse3 .cse1 v_ArrVal_10040) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|))))) (or (forall ((|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|)))) (forall ((v_ArrVal_10041 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10036 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10037 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10038 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10039 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (select (select (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_10036))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_10037) .cse6 v_ArrVal_10038) (select (select (store .cse7 .cse6 v_ArrVal_10039) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_10041))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule .cse5 (bvadd (_ bv4 32) .cse5))))))) is different from false [2024-11-28 04:42:21,362 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (and (or (forall ((v_ArrVal_10041 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10036 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10037 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10038 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10039 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_10036))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_10037) .cse2 v_ArrVal_10038) (select (select (store .cse3 .cse2 v_ArrVal_10039) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_10041))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule .cse0 (bvadd .cse0 (_ bv4 32))))) (forall ((|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|))))) (forall ((v_ArrVal_10041 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10036 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10037 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10038 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10039 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32)) (v_ArrVal_10040 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|))) (forall ((v_ArrVal_10042 (_ BitVec 32))) (let ((.cse8 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_10036))) (let ((.cse5 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse7 (store .cse8 .cse5 v_ArrVal_10039))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (select (select (store (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_10037) .cse5 v_ArrVal_10038) .cse6 v_ArrVal_10041) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) (_ bv4 32)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc43#1.base_8| v_ArrVal_10042) (select (select (store .cse7 .cse6 v_ArrVal_10040) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))))))))))))) is different from false [2024-11-28 04:42:22,175 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_10041 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10036 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10037 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10034 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10035 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10038 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10039 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32)) (v_ArrVal_10040 (Array (_ BitVec 32) (_ BitVec 32)))) (or (forall ((v_ArrVal_10042 (_ BitVec 32))) (let ((.cse6 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_10035))) (let ((.cse0 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse5 (store .cse6 .cse0 v_ArrVal_10036))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_10039))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv4 32) (select (select (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_10034) .cse0 v_ArrVal_10037) .cse1 v_ArrVal_10038) .cse2 v_ArrVal_10041) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc43#1.base_8| v_ArrVal_10042) (select (select (store .cse4 .cse2 v_ArrVal_10040) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|))))) (or (forall ((|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|)))) (forall ((v_ArrVal_10041 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10036 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10037 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10034 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10035 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10038 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10039 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (select (select (let ((.cse11 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_10035))) (let ((.cse8 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse10 (store .cse11 .cse8 v_ArrVal_10036))) (let ((.cse9 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_10034) .cse8 v_ArrVal_10037) .cse9 v_ArrVal_10038) (select (select (store .cse10 .cse9 v_ArrVal_10039) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_10041))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule .cse7 (bvadd (_ bv4 32) .cse7))))))) is different from false [2024-11-28 04:42:22,674 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse5 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (and (or (forall ((v_ArrVal_10041 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10036 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10037 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10034 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10035 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10038 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10039 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse6 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_10035))) (let ((.cse2 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse4 (store .cse6 .cse2 v_ArrVal_10036))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (store (store (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_10034) .cse2 v_ArrVal_10037) .cse3 v_ArrVal_10038) (select (select (store .cse4 .cse3 v_ArrVal_10039) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) v_ArrVal_10041))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (bvule .cse0 (bvadd (_ bv4 32) .cse0)))) (forall ((|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|))))) (forall ((v_ArrVal_10041 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10036 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10037 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10034 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10035 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10038 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10039 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32)) (v_ArrVal_10040 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|))) (forall ((v_ArrVal_10042 (_ BitVec 32))) (let ((.cse12 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_10035))) (let ((.cse7 (select (select .cse12 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse11 (store .cse12 .cse7 v_ArrVal_10036))) (let ((.cse8 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse10 (store .cse11 .cse8 v_ArrVal_10039))) (let ((.cse9 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (bvule (bvadd (_ bv4 32) (select (select (store (store (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_10034) .cse7 v_ArrVal_10037) .cse8 v_ArrVal_10038) .cse9 v_ArrVal_10041) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc43#1.base_8| v_ArrVal_10042) (select (select (store .cse10 .cse9 v_ArrVal_10040) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))))))))))))))) is different from false [2024-11-28 04:42:29,404 WARN L286 SmtUtils]: Spent 6.37s on a formula simplification that was a NOOP. DAG size: 362 (called from [L 276] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2024-11-28 04:42:30,996 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:42:30,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 795 treesize of output 819 [2024-11-28 04:42:36,874 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse5 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_10041 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10036 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10037 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10133 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10034 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10134 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10035 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10038 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10039 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_10133))) (let ((.cse1 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse6 (store .cse7 .cse1 v_ArrVal_10035))) (let ((.cse2 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse4 (store .cse6 .cse2 v_ArrVal_10036))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (store (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_10134) .cse1 v_ArrVal_10034) .cse2 v_ArrVal_10037) .cse3 v_ArrVal_10038) (select (select (store .cse4 .cse3 v_ArrVal_10039) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) v_ArrVal_10041))))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (bvule .cse0 (bvadd (_ bv4 32) .cse0)))) (forall ((v_prenex_41 (_ BitVec 32)) (v_prenex_39 (Array (_ BitVec 32) (_ BitVec 32))) (v_prenex_37 (Array (_ BitVec 32) (_ BitVec 32))) (v_prenex_38 (Array (_ BitVec 32) (_ BitVec 32))) (v_prenex_35 (Array (_ BitVec 32) (_ BitVec 32))) (v_prenex_36 (Array (_ BitVec 32) (_ BitVec 32))) (v_prenex_33 (Array (_ BitVec 32) (_ BitVec 32))) (v_prenex_34 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10042 (_ BitVec 32)) (v_prenex_32 (Array (_ BitVec 32) (_ BitVec 32))) (v_prenex_40 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10040 (Array (_ BitVec 32) (_ BitVec 32)))) (or (= v_prenex_41 |c_ULTIMATE.start_main_#t~mem36#1.base|) (let ((.cse15 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_prenex_35))) (let ((.cse8 (select (select .cse15 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse14 (store .cse15 .cse8 v_prenex_38))) (let ((.cse9 (select (select .cse14 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse13 (store .cse14 .cse9 v_prenex_33))) (let ((.cse10 (select (select .cse13 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse12 (store .cse13 .cse10 v_prenex_40))) (let ((.cse11 (select (select .cse12 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (bvule (bvadd (_ bv4 32) (select (select (store (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_prenex_37) .cse8 v_prenex_36) .cse9 v_prenex_34) .cse10 v_prenex_39) .cse11 v_prenex_32) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5)) (select (store |c_#length| v_prenex_41 v_ArrVal_10042) (select (select (store .cse12 .cse11 v_ArrVal_10040) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))))))))))))))) is different from false [2024-11-28 04:42:36,954 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:42:36,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820767482] [2024-11-28 04:42:36,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [820767482] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:42:36,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1406925977] [2024-11-28 04:42:36,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:36,954 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:42:36,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:42:36,957 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:42:36,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96ad17f-05a1-41cb-9ba8-29a017b34ac6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process