./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/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_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/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_ce6f6dcf-c482-4bec-b175-b215184815e1/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 5eef0a1d7c251abc753eabb723fe850489bfd10ab147ced1a31e6821eaf88c98 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:24:05,420 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:24:05,503 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-27 20:24:05,515 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:24:05,515 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:24:05,551 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:24:05,552 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:24:05,552 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:24:05,553 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:24:05,553 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:24:05,553 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:24:05,554 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:24:05,554 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:24:05,554 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:24:05,554 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:24:05,554 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:24:05,554 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:24:05,555 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:24:05,555 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:24:05,555 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:24:05,555 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-27 20:24:05,555 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-27 20:24:05,555 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-27 20:24:05,555 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:24:05,555 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 20:24:05,555 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:24:05,555 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:24:05,556 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:24:05,556 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:24:05,558 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:24:05,558 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:24:05,559 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:24:05,559 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:24:05,559 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:24:05,559 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:24:05,559 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:24:05,559 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:24:05,559 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:24:05,559 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:24:05,559 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:24:05,559 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:24:05,559 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:24:05,560 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:24:05,560 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:24:05,560 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:24:05,560 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:24:05,560 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:24:05,560 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_ce6f6dcf-c482-4bec-b175-b215184815e1/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 -> 5eef0a1d7c251abc753eabb723fe850489bfd10ab147ced1a31e6821eaf88c98 [2024-11-27 20:24:05,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:24:05,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:24:05,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:24:05,903 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:24:05,905 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:24:05,907 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-1.i [2024-11-27 20:24:08,893 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/data/21c49dc6d/9f7a7d4d80ce4aa6a1488855f5c830b4/FLAG31fdc9526 [2024-11-27 20:24:09,343 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:24:09,344 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-1.i [2024-11-27 20:24:09,366 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/data/21c49dc6d/9f7a7d4d80ce4aa6a1488855f5c830b4/FLAG31fdc9526 [2024-11-27 20:24:09,389 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/data/21c49dc6d/9f7a7d4d80ce4aa6a1488855f5c830b4 [2024-11-27 20:24:09,392 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:24:09,394 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:24:09,395 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:24:09,396 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:24:09,400 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:24:09,401 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:24:09" (1/1) ... [2024-11-27 20:24:09,402 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7497aeec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:09, skipping insertion in model container [2024-11-27 20:24:09,403 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:24:09" (1/1) ... [2024-11-27 20:24:09,457 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:24:09,862 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:09,892 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:09,896 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:09,900 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:09,908 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:09,952 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:09,952 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:09,955 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:09,955 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:09,959 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:09,960 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:09,961 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:09,962 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:09,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:24:09,984 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) [2024-11-27 20:24:09,984 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@792e0385 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:09, skipping insertion in model container [2024-11-27 20:24:09,985 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:24:09,985 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-27 20:24:09,987 INFO L158 Benchmark]: Toolchain (without parser) took 592.80ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 71.0MB in the end (delta: 19.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-27 20:24:09,987 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 117.4MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:24:09,988 INFO L158 Benchmark]: CACSL2BoogieTranslator took 589.77ms. Allocated memory is still 117.4MB. Free memory was 90.2MB in the beginning and 71.0MB in the end (delta: 19.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-27 20:24:09,989 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 117.4MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 589.77ms. Allocated memory is still 117.4MB. Free memory was 90.2MB in the beginning and 71.0MB in the end (delta: 19.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 778]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/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_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/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_ce6f6dcf-c482-4bec-b175-b215184815e1/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 5eef0a1d7c251abc753eabb723fe850489bfd10ab147ced1a31e6821eaf88c98 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:24:12,342 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:24:12,453 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-27 20:24:12,459 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:24:12,460 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:24:12,486 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:24:12,486 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:24:12,486 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:24:12,487 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:24:12,489 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:24:12,489 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:24:12,490 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:24:12,491 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:24:12,491 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:24:12,491 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:24:12,491 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:24:12,492 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:24:12,492 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:24:12,492 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:24:12,492 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:24:12,492 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-27 20:24:12,492 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-27 20:24:12,492 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-27 20:24:12,493 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:24:12,493 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 20:24:12,493 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-27 20:24:12,493 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-27 20:24:12,493 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:24:12,493 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:24:12,493 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:24:12,494 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:24:12,494 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:24:12,494 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:24:12,495 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:24:12,495 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:24:12,495 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:24:12,495 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:24:12,495 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:24:12,496 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:24:12,496 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:24:12,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:24:12,496 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:24:12,497 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:24:12,497 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-27 20:24:12,497 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-27 20:24:12,497 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:24:12,497 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:24:12,497 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:24:12,497 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:24:12,497 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_ce6f6dcf-c482-4bec-b175-b215184815e1/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 -> 5eef0a1d7c251abc753eabb723fe850489bfd10ab147ced1a31e6821eaf88c98 [2024-11-27 20:24:12,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:24:12,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:24:12,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:24:12,832 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:24:12,833 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:24:12,834 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-1.i [2024-11-27 20:24:15,849 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/data/c802b5f42/f8ce8d911b7d4667a6a79db7bfd366be/FLAG3913a662a [2024-11-27 20:24:16,187 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:24:16,187 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-1.i [2024-11-27 20:24:16,202 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/data/c802b5f42/f8ce8d911b7d4667a6a79db7bfd366be/FLAG3913a662a [2024-11-27 20:24:16,216 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/data/c802b5f42/f8ce8d911b7d4667a6a79db7bfd366be [2024-11-27 20:24:16,218 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:24:16,219 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:24:16,221 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:24:16,221 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:24:16,225 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:24:16,226 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:24:16" (1/1) ... [2024-11-27 20:24:16,227 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@767159c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:16, skipping insertion in model container [2024-11-27 20:24:16,227 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:24:16" (1/1) ... [2024-11-27 20:24:16,263 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:24:16,720 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:16,766 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:16,771 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:16,776 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:16,785 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:16,826 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:16,827 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:16,831 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:16,833 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:16,839 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:16,842 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:16,844 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:16,845 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:16,856 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:24:16,879 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-27 20:24:16,897 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:24:16,947 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:16,986 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:16,989 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:16,996 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:17,003 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:17,030 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:17,030 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:17,033 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:17,033 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:17,036 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:17,037 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:17,038 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:17,039 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:24:17,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:24:17,051 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:24:17,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:24:17,216 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:24:17,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:17 WrapperNode [2024-11-27 20:24:17,217 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:24:17,218 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:24:17,218 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:24:17,218 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:24:17,225 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:17" (1/1) ... [2024-11-27 20:24:17,250 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:17" (1/1) ... [2024-11-27 20:24:17,308 INFO L138 Inliner]: procedures = 180, calls = 291, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1003 [2024-11-27 20:24:17,309 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:24:17,311 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:24:17,311 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:24:17,312 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:24:17,321 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:17" (1/1) ... [2024-11-27 20:24:17,321 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:17" (1/1) ... [2024-11-27 20:24:17,331 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:17" (1/1) ... [2024-11-27 20:24:17,405 INFO L175 MemorySlicer]: Split 256 memory accesses to 3 slices as follows [2, 34, 220]. 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, 4, 50]. [2024-11-27 20:24:17,409 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:17" (1/1) ... [2024-11-27 20:24:17,409 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:17" (1/1) ... [2024-11-27 20:24:17,501 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:17" (1/1) ... [2024-11-27 20:24:17,506 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:17" (1/1) ... [2024-11-27 20:24:17,523 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:17" (1/1) ... [2024-11-27 20:24:17,530 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:17" (1/1) ... [2024-11-27 20:24:17,534 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:17" (1/1) ... [2024-11-27 20:24:17,546 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:24:17,548 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:24:17,548 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:24:17,548 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:24:17,550 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:17" (1/1) ... [2024-11-27 20:24:17,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:24:17,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:17,588 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:24:17,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:24:17,627 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-27 20:24:17,628 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-27 20:24:17,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-27 20:24:17,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-27 20:24:17,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-27 20:24:17,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-27 20:24:17,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-27 20:24:17,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-27 20:24:17,630 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 20:24:17,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 20:24:17,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-27 20:24:17,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-27 20:24:17,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-27 20:24:17,631 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-27 20:24:17,631 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-27 20:24:17,632 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-27 20:24:17,632 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2024-11-27 20:24:17,632 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2024-11-27 20:24:17,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 20:24:17,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:24:17,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-27 20:24:17,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-27 20:24:17,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-27 20:24:17,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-27 20:24:17,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-27 20:24:17,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-27 20:24:17,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-27 20:24:17,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 20:24:17,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-27 20:24:17,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-27 20:24:17,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-27 20:24:17,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-27 20:24:17,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-27 20:24:17,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-27 20:24:17,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:24:17,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:24:17,874 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:24:17,877 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:24:17,900 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-27 20:24:17,946 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-27 20:24:17,974 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-27 20:24:22,652 INFO L? ?]: Removed 1099 outVars from TransFormulas that were not future-live. [2024-11-27 20:24:22,653 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:24:22,695 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:24:22,695 INFO L312 CfgBuilder]: Removed 35 assume(true) statements. [2024-11-27 20:24:22,695 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:24:22 BoogieIcfgContainer [2024-11-27 20:24:22,696 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:24:22,698 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:24:22,698 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:24:22,703 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:24:22,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:24:16" (1/3) ... [2024-11-27 20:24:22,704 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21404858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:24:22, skipping insertion in model container [2024-11-27 20:24:22,704 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:17" (2/3) ... [2024-11-27 20:24:22,704 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21404858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:24:22, skipping insertion in model container [2024-11-27 20:24:22,705 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:24:22" (3/3) ... [2024-11-27 20:24:22,706 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test8-1.i [2024-11-27 20:24:22,722 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:24:22,723 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_OAT_test8-1.i that has 7 procedures, 1110 locations, 1 initial locations, 37 loop locations, and 529 error locations. [2024-11-27 20:24:22,786 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:24:22,799 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;@27094f38, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:24:22,799 INFO L334 AbstractCegarLoop]: Starting to check reachability of 529 error locations. [2024-11-27 20:24:22,805 INFO L276 IsEmpty]: Start isEmpty. Operand has 1100 states, 547 states have (on average 2.212065813528336) internal successors, (1210), 1090 states have internal predecessors, (1210), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-27 20:24:22,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-27 20:24:22,810 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:22,810 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-27 20:24:22,811 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 20:24:22,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:22,816 INFO L85 PathProgramCache]: Analyzing trace with hash 158947, now seen corresponding path program 1 times [2024-11-27 20:24:22,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:24:22,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [476242990] [2024-11-27 20:24:22,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:22,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:22,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:22,830 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:22,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:24:23,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:23,020 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:24:23,027 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:23,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-27 20:24:23,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:24:23,083 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:24:23,084 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:24:23,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476242990] [2024-11-27 20:24:23,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476242990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:23,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:23,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:24:23,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261253497] [2024-11-27 20:24:23,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:23,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:24:23,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:24:23,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:24:23,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:24:23,121 INFO L87 Difference]: Start difference. First operand has 1100 states, 547 states have (on average 2.212065813528336) internal successors, (1210), 1090 states have internal predecessors, (1210), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:25,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:25,162 INFO L93 Difference]: Finished difference Result 1103 states and 1190 transitions. [2024-11-27 20:24:25,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:24:25,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-27 20:24:25,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:25,181 INFO L225 Difference]: With dead ends: 1103 [2024-11-27 20:24:25,181 INFO L226 Difference]: Without dead ends: 1101 [2024-11-27 20:24:25,183 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:24:25,186 INFO L435 NwaCegarLoop]: 700 mSDtfsCounter, 961 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:25,188 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [965 Valid, 835 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-27 20:24:25,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1101 states. [2024-11-27 20:24:25,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1101 to 1089. [2024-11-27 20:24:25,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1089 states, 552 states have (on average 2.0579710144927534) internal successors, (1136), 1078 states have internal predecessors, (1136), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-27 20:24:25,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1089 states to 1089 states and 1180 transitions. [2024-11-27 20:24:25,296 INFO L78 Accepts]: Start accepts. Automaton has 1089 states and 1180 transitions. Word has length 3 [2024-11-27 20:24:25,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:25,296 INFO L471 AbstractCegarLoop]: Abstraction has 1089 states and 1180 transitions. [2024-11-27 20:24:25,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:25,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1089 states and 1180 transitions. [2024-11-27 20:24:25,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-27 20:24:25,297 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:25,297 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-27 20:24:25,308 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:24:25,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:25,501 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 20:24:25,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:25,502 INFO L85 PathProgramCache]: Analyzing trace with hash 158948, now seen corresponding path program 1 times [2024-11-27 20:24:25,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:24:25,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [411266983] [2024-11-27 20:24:25,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:25,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:25,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:25,505 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:25,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:24:25,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:25,633 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:24:25,635 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:25,649 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 [2024-11-27 20:24:25,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:24:25,663 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:24:25,663 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:24:25,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411266983] [2024-11-27 20:24:25,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411266983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:25,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:25,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:24:25,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737545028] [2024-11-27 20:24:25,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:25,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:24:25,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:24:25,665 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:24:25,665 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:24:25,665 INFO L87 Difference]: Start difference. First operand 1089 states and 1180 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:28,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:28,723 INFO L93 Difference]: Finished difference Result 1491 states and 1614 transitions. [2024-11-27 20:24:28,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:24:28,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-27 20:24:28,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:28,730 INFO L225 Difference]: With dead ends: 1491 [2024-11-27 20:24:28,730 INFO L226 Difference]: Without dead ends: 1491 [2024-11-27 20:24:28,731 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:24:28,731 INFO L435 NwaCegarLoop]: 971 mSDtfsCounter, 430 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 1612 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:28,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 1612 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-27 20:24:28,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1491 states. [2024-11-27 20:24:28,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1491 to 1301. [2024-11-27 20:24:28,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1301 states, 764 states have (on average 2.048429319371728) internal successors, (1565), 1289 states have internal predecessors, (1565), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-27 20:24:28,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1301 states to 1301 states and 1611 transitions. [2024-11-27 20:24:28,775 INFO L78 Accepts]: Start accepts. Automaton has 1301 states and 1611 transitions. Word has length 3 [2024-11-27 20:24:28,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:28,775 INFO L471 AbstractCegarLoop]: Abstraction has 1301 states and 1611 transitions. [2024-11-27 20:24:28,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:28,775 INFO L276 IsEmpty]: Start isEmpty. Operand 1301 states and 1611 transitions. [2024-11-27 20:24:28,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-27 20:24:28,776 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:28,776 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:28,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 20:24:28,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:28,980 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 20:24:28,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:28,981 INFO L85 PathProgramCache]: Analyzing trace with hash -2043492463, now seen corresponding path program 1 times [2024-11-27 20:24:28,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:24:28,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1190104560] [2024-11-27 20:24:28,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:28,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:28,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:28,984 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:28,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:24:29,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:29,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:24:29,146 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:29,160 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 [2024-11-27 20:24:29,257 INFO L349 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2024-11-27 20:24:29,257 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 [2024-11-27 20:24:29,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:24:29,370 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:24:29,370 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:24:29,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190104560] [2024-11-27 20:24:29,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190104560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:29,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:29,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:24:29,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142938646] [2024-11-27 20:24:29,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:29,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:24:29,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:24:29,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:24:29,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:24:29,372 INFO L87 Difference]: Start difference. First operand 1301 states and 1611 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:34,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:34,995 INFO L93 Difference]: Finished difference Result 2187 states and 2359 transitions. [2024-11-27 20:24:34,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:24:34,996 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-27 20:24:34,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:35,004 INFO L225 Difference]: With dead ends: 2187 [2024-11-27 20:24:35,005 INFO L226 Difference]: Without dead ends: 2187 [2024-11-27 20:24:35,005 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:24:35,006 INFO L435 NwaCegarLoop]: 1076 mSDtfsCounter, 1161 mSDsluCounter, 1277 mSDsCounter, 0 mSdLazyCounter, 1572 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1164 SdHoareTripleChecker+Valid, 2353 SdHoareTripleChecker+Invalid, 1583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:35,008 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1164 Valid, 2353 Invalid, 1583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1572 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-11-27 20:24:35,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2024-11-27 20:24:35,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 1454. [2024-11-27 20:24:35,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1454 states, 916 states have (on average 2.0294759825327513) internal successors, (1859), 1441 states have internal predecessors, (1859), 25 states have call successors, (25), 4 states have call predecessors, (25), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 20:24:35,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1454 states to 1454 states and 1907 transitions. [2024-11-27 20:24:35,078 INFO L78 Accepts]: Start accepts. Automaton has 1454 states and 1907 transitions. Word has length 8 [2024-11-27 20:24:35,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:35,078 INFO L471 AbstractCegarLoop]: Abstraction has 1454 states and 1907 transitions. [2024-11-27 20:24:35,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:35,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1454 states and 1907 transitions. [2024-11-27 20:24:35,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-27 20:24:35,079 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:35,080 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:35,089 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 20:24:35,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:35,284 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 20:24:35,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:35,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1076243185, now seen corresponding path program 1 times [2024-11-27 20:24:35,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:24:35,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1127689589] [2024-11-27 20:24:35,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:35,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:35,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:35,289 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:35,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 20:24:35,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:35,427 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:24:35,429 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:35,440 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-27 20:24:35,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:24:35,478 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:24:35,478 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:24:35,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127689589] [2024-11-27 20:24:35,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127689589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:35,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:35,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:24:35,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844903093] [2024-11-27 20:24:35,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:35,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:24:35,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:24:35,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:24:35,480 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:24:35,480 INFO L87 Difference]: Start difference. First operand 1454 states and 1907 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:38,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:38,914 INFO L93 Difference]: Finished difference Result 2162 states and 2861 transitions. [2024-11-27 20:24:38,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:24:38,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-27 20:24:38,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:38,922 INFO L225 Difference]: With dead ends: 2162 [2024-11-27 20:24:38,922 INFO L226 Difference]: Without dead ends: 2162 [2024-11-27 20:24:38,923 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:24:38,923 INFO L435 NwaCegarLoop]: 1255 mSDtfsCounter, 715 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 1747 SdHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:38,924 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [717 Valid, 1747 Invalid, 829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 814 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-27 20:24:38,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2162 states. [2024-11-27 20:24:38,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2162 to 1922. [2024-11-27 20:24:38,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1922 states, 1391 states have (on average 2.011502516175413) internal successors, (2798), 1906 states have internal predecessors, (2798), 28 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (26), 12 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-27 20:24:38,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1922 states to 1922 states and 2852 transitions. [2024-11-27 20:24:38,981 INFO L78 Accepts]: Start accepts. Automaton has 1922 states and 2852 transitions. Word has length 9 [2024-11-27 20:24:38,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:38,981 INFO L471 AbstractCegarLoop]: Abstraction has 1922 states and 2852 transitions. [2024-11-27 20:24:38,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:38,982 INFO L276 IsEmpty]: Start isEmpty. Operand 1922 states and 2852 transitions. [2024-11-27 20:24:38,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-27 20:24:38,982 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:38,982 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:38,991 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 20:24:39,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:39,183 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 20:24:39,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:39,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1076243184, now seen corresponding path program 1 times [2024-11-27 20:24:39,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:24:39,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [746997797] [2024-11-27 20:24:39,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:39,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:39,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:39,186 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:39,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 20:24:39,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:39,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:24:39,322 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:39,333 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 [2024-11-27 20:24:39,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:24:39,351 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:24:39,351 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:24:39,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746997797] [2024-11-27 20:24:39,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746997797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:39,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:39,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:24:39,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002469982] [2024-11-27 20:24:39,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:39,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:24:39,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:24:39,353 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:24:39,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:24:39,353 INFO L87 Difference]: Start difference. First operand 1922 states and 2852 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:41,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:41,503 INFO L93 Difference]: Finished difference Result 2269 states and 3219 transitions. [2024-11-27 20:24:41,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:24:41,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-27 20:24:41,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:41,511 INFO L225 Difference]: With dead ends: 2269 [2024-11-27 20:24:41,512 INFO L226 Difference]: Without dead ends: 2269 [2024-11-27 20:24:41,512 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:24:41,513 INFO L435 NwaCegarLoop]: 1022 mSDtfsCounter, 950 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 955 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:41,513 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [955 Valid, 1332 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-27 20:24:41,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2269 states. [2024-11-27 20:24:41,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2269 to 1874. [2024-11-27 20:24:41,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1874 states, 1391 states have (on average 1.9640546369518332) internal successors, (2732), 1858 states have internal predecessors, (2732), 28 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (26), 12 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-27 20:24:41,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1874 states to 1874 states and 2786 transitions. [2024-11-27 20:24:41,559 INFO L78 Accepts]: Start accepts. Automaton has 1874 states and 2786 transitions. Word has length 9 [2024-11-27 20:24:41,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:41,559 INFO L471 AbstractCegarLoop]: Abstraction has 1874 states and 2786 transitions. [2024-11-27 20:24:41,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:41,559 INFO L276 IsEmpty]: Start isEmpty. Operand 1874 states and 2786 transitions. [2024-11-27 20:24:41,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-27 20:24:41,560 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:41,560 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:41,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 20:24:41,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:41,764 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr527ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 20:24:41,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:41,765 INFO L85 PathProgramCache]: Analyzing trace with hash -60922292, now seen corresponding path program 1 times [2024-11-27 20:24:41,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:24:41,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [581418712] [2024-11-27 20:24:41,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:41,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:41,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:41,768 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:41,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 20:24:41,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:41,929 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:24:41,931 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:41,938 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 20:24:41,939 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 20:24:41,940 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 20:24:41,947 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 [2024-11-27 20:24:42,019 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:24:42,019 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 [2024-11-27 20:24:42,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:24:42,036 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:24:42,036 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:24:42,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581418712] [2024-11-27 20:24:42,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581418712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:42,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:42,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:24:42,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81240872] [2024-11-27 20:24:42,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:42,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:24:42,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:24:42,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:24:42,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:24:42,038 INFO L87 Difference]: Start difference. First operand 1874 states and 2786 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2024-11-27 20:24:42,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:42,716 INFO L93 Difference]: Finished difference Result 3092 states and 4333 transitions. [2024-11-27 20:24:42,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:24:42,717 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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 [2024-11-27 20:24:42,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:42,727 INFO L225 Difference]: With dead ends: 3092 [2024-11-27 20:24:42,727 INFO L226 Difference]: Without dead ends: 3092 [2024-11-27 20:24:42,727 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:24:42,728 INFO L435 NwaCegarLoop]: 1058 mSDtfsCounter, 993 mSDsluCounter, 2101 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 3159 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:42,728 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 3159 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 20:24:42,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3092 states. [2024-11-27 20:24:42,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3092 to 1663. [2024-11-27 20:24:42,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1663 states, 1181 states have (on average 1.9508890770533447) internal successors, (2304), 1648 states have internal predecessors, (2304), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-27 20:24:42,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1663 states to 1663 states and 2356 transitions. [2024-11-27 20:24:42,784 INFO L78 Accepts]: Start accepts. Automaton has 1663 states and 2356 transitions. Word has length 10 [2024-11-27 20:24:42,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:42,785 INFO L471 AbstractCegarLoop]: Abstraction has 1663 states and 2356 transitions. [2024-11-27 20:24:42,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2024-11-27 20:24:42,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1663 states and 2356 transitions. [2024-11-27 20:24:42,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-27 20:24:42,789 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:42,789 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:42,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-27 20:24:42,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:42,990 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 20:24:42,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:42,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1644780993, now seen corresponding path program 1 times [2024-11-27 20:24:42,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:24:42,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [521268509] [2024-11-27 20:24:42,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:42,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:42,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:42,992 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:42,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 20:24:43,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:43,162 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:24:43,164 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:43,170 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 [2024-11-27 20:24:43,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:24:43,224 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:24:43,224 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:24:43,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521268509] [2024-11-27 20:24:43,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521268509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:43,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:43,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:24:43,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240540857] [2024-11-27 20:24:43,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:43,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:24:43,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:24:43,225 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:24:43,225 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:24:43,228 INFO L87 Difference]: Start difference. First operand 1663 states and 2356 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:45,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:45,670 INFO L93 Difference]: Finished difference Result 1667 states and 2343 transitions. [2024-11-27 20:24:45,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:24:45,674 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-27 20:24:45,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:45,676 INFO L225 Difference]: With dead ends: 1667 [2024-11-27 20:24:45,676 INFO L226 Difference]: Without dead ends: 1667 [2024-11-27 20:24:45,677 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:24:45,677 INFO L435 NwaCegarLoop]: 596 mSDtfsCounter, 997 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1002 SdHoareTripleChecker+Valid, 1199 SdHoareTripleChecker+Invalid, 1087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:45,677 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1002 Valid, 1199 Invalid, 1087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1059 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-27 20:24:45,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1667 states. [2024-11-27 20:24:45,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1667 to 1640. [2024-11-27 20:24:45,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1640 states, 1181 states have (on average 1.911939034716342) internal successors, (2258), 1625 states have internal predecessors, (2258), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-27 20:24:45,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1640 states to 1640 states and 2310 transitions. [2024-11-27 20:24:45,709 INFO L78 Accepts]: Start accepts. Automaton has 1640 states and 2310 transitions. Word has length 19 [2024-11-27 20:24:45,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:45,709 INFO L471 AbstractCegarLoop]: Abstraction has 1640 states and 2310 transitions. [2024-11-27 20:24:45,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:45,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1640 states and 2310 transitions. [2024-11-27 20:24:45,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-27 20:24:45,710 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:45,710 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:45,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-27 20:24:45,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:45,910 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 20:24:45,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:45,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1644780992, now seen corresponding path program 1 times [2024-11-27 20:24:45,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:24:45,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1755789566] [2024-11-27 20:24:45,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:45,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:45,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:45,913 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:45,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 20:24:46,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:46,088 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:24:46,090 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:46,102 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 [2024-11-27 20:24:46,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:24:46,252 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:24:46,252 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:24:46,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755789566] [2024-11-27 20:24:46,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1755789566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:46,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:46,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:24:46,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310756284] [2024-11-27 20:24:46,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:46,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:24:46,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:24:46,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:24:46,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:24:46,254 INFO L87 Difference]: Start difference. First operand 1640 states and 2310 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:50,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:50,194 INFO L93 Difference]: Finished difference Result 2012 states and 2475 transitions. [2024-11-27 20:24:50,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:24:50,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-27 20:24:50,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:50,199 INFO L225 Difference]: With dead ends: 2012 [2024-11-27 20:24:50,199 INFO L226 Difference]: Without dead ends: 2012 [2024-11-27 20:24:50,199 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:24:50,199 INFO L435 NwaCegarLoop]: 766 mSDtfsCounter, 836 mSDsluCounter, 1058 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 838 SdHoareTripleChecker+Valid, 1824 SdHoareTripleChecker+Invalid, 1295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:50,200 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [838 Valid, 1824 Invalid, 1295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-27 20:24:50,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2012 states. [2024-11-27 20:24:50,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2012 to 1756. [2024-11-27 20:24:50,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1756 states, 1297 states have (on average 1.848882035466461) internal successors, (2398), 1741 states have internal predecessors, (2398), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-27 20:24:50,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1756 states to 1756 states and 2450 transitions. [2024-11-27 20:24:50,234 INFO L78 Accepts]: Start accepts. Automaton has 1756 states and 2450 transitions. Word has length 19 [2024-11-27 20:24:50,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:50,235 INFO L471 AbstractCegarLoop]: Abstraction has 1756 states and 2450 transitions. [2024-11-27 20:24:50,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:50,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1756 states and 2450 transitions. [2024-11-27 20:24:50,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-27 20:24:50,236 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:50,237 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:50,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-27 20:24:50,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:50,441 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 20:24:50,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:50,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1472731388, now seen corresponding path program 1 times [2024-11-27 20:24:50,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:24:50,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [309438239] [2024-11-27 20:24:50,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:50,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:50,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:50,445 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:50,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 20:24:50,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:50,703 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 20:24:50,706 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:50,719 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 [2024-11-27 20:24:51,004 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:24:51,005 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:24:51,580 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:24:51,580 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:24:51,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309438239] [2024-11-27 20:24:51,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309438239] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:24:51,580 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:24:51,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-27 20:24:51,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792861624] [2024-11-27 20:24:51,581 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:24:51,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:24:51,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:24:51,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:24:51,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:24:51,582 INFO L87 Difference]: Start difference. First operand 1756 states and 2450 transitions. Second operand has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:25:01,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:25:01,875 INFO L93 Difference]: Finished difference Result 2374 states and 2971 transitions. [2024-11-27 20:25:01,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:25:01,875 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2024-11-27 20:25:01,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:25:01,879 INFO L225 Difference]: With dead ends: 2374 [2024-11-27 20:25:01,880 INFO L226 Difference]: Without dead ends: 2374 [2024-11-27 20:25:01,880 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:25:01,880 INFO L435 NwaCegarLoop]: 794 mSDtfsCounter, 1551 mSDsluCounter, 2200 mSDsCounter, 0 mSdLazyCounter, 2300 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1554 SdHoareTripleChecker+Valid, 2994 SdHoareTripleChecker+Invalid, 2327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:25:01,881 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1554 Valid, 2994 Invalid, 2327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2300 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2024-11-27 20:25:01,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2374 states. [2024-11-27 20:25:01,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2374 to 1922. [2024-11-27 20:25:01,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1922 states, 1463 states have (on average 1.799043062200957) internal successors, (2632), 1907 states have internal predecessors, (2632), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-27 20:25:01,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1922 states to 1922 states and 2684 transitions. [2024-11-27 20:25:01,929 INFO L78 Accepts]: Start accepts. Automaton has 1922 states and 2684 transitions. Word has length 38 [2024-11-27 20:25:01,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:25:01,929 INFO L471 AbstractCegarLoop]: Abstraction has 1922 states and 2684 transitions. [2024-11-27 20:25:01,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:25:01,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1922 states and 2684 transitions. [2024-11-27 20:25:01,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-27 20:25:01,935 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:25:01,936 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:25:01,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-27 20:25:02,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:25:02,141 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr117REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 20:25:02,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:25:02,141 INFO L85 PathProgramCache]: Analyzing trace with hash 568115488, now seen corresponding path program 1 times [2024-11-27 20:25:02,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:25:02,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1458985036] [2024-11-27 20:25:02,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:25:02,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:25:02,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:25:02,145 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:25:02,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 20:25:02,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:25:02,410 INFO L256 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:25:02,412 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:25:02,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:25:02,786 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:25:02,786 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:25:02,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458985036] [2024-11-27 20:25:02,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458985036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:25:02,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:25:02,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:25:02,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16585717] [2024-11-27 20:25:02,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:25:02,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:25:02,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:25:02,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:25:02,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:25:02,789 INFO L87 Difference]: Start difference. First operand 1922 states and 2684 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-11-27 20:25:03,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:25:03,112 INFO L93 Difference]: Finished difference Result 2136 states and 2812 transitions. [2024-11-27 20:25:03,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:25:03,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 51 [2024-11-27 20:25:03,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:25:03,119 INFO L225 Difference]: With dead ends: 2136 [2024-11-27 20:25:03,119 INFO L226 Difference]: Without dead ends: 2136 [2024-11-27 20:25:03,119 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:25:03,119 INFO L435 NwaCegarLoop]: 1288 mSDtfsCounter, 395 mSDsluCounter, 1002 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 2290 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:25:03,120 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 2290 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:25:03,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2136 states. [2024-11-27 20:25:03,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2136 to 1961. [2024-11-27 20:25:03,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1961 states, 1502 states have (on average 1.8102529960053262) internal successors, (2719), 1946 states have internal predecessors, (2719), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-27 20:25:03,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1961 states to 1961 states and 2771 transitions. [2024-11-27 20:25:03,166 INFO L78 Accepts]: Start accepts. Automaton has 1961 states and 2771 transitions. Word has length 51 [2024-11-27 20:25:03,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:25:03,167 INFO L471 AbstractCegarLoop]: Abstraction has 1961 states and 2771 transitions. [2024-11-27 20:25:03,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-11-27 20:25:03,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1961 states and 2771 transitions. [2024-11-27 20:25:03,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-27 20:25:03,168 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:25:03,168 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:25:03,181 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-27 20:25:03,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:25:03,369 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 20:25:03,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:25:03,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1846854937, now seen corresponding path program 1 times [2024-11-27 20:25:03,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:25:03,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1022678569] [2024-11-27 20:25:03,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:25:03,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:25:03,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:25:03,372 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:25:03,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-27 20:25:03,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:25:03,614 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:25:03,616 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:25:03,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:25:03,682 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:25:03,682 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:25:03,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022678569] [2024-11-27 20:25:03,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022678569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:25:03,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:25:03,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:25:03,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080431837] [2024-11-27 20:25:03,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:25:03,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:25:03,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:25:03,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:25:03,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:25:03,683 INFO L87 Difference]: Start difference. First operand 1961 states and 2771 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:25:03,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:25:03,813 INFO L93 Difference]: Finished difference Result 1646 states and 2331 transitions. [2024-11-27 20:25:03,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:25:03,815 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-11-27 20:25:03,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:25:03,821 INFO L225 Difference]: With dead ends: 1646 [2024-11-27 20:25:03,822 INFO L226 Difference]: Without dead ends: 1646 [2024-11-27 20:25:03,822 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:25:03,822 INFO L435 NwaCegarLoop]: 1018 mSDtfsCounter, 56 mSDsluCounter, 1963 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 2981 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 [2024-11-27 20:25:03,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 2981 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:25:03,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2024-11-27 20:25:03,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1644. [2024-11-27 20:25:03,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1644 states, 1208 states have (on average 1.884933774834437) internal successors, (2277), 1629 states have internal predecessors, (2277), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-27 20:25:03,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1644 states to 1644 states and 2329 transitions. [2024-11-27 20:25:03,849 INFO L78 Accepts]: Start accepts. Automaton has 1644 states and 2329 transitions. Word has length 54 [2024-11-27 20:25:03,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:25:03,849 INFO L471 AbstractCegarLoop]: Abstraction has 1644 states and 2329 transitions. [2024-11-27 20:25:03,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:25:03,849 INFO L276 IsEmpty]: Start isEmpty. Operand 1644 states and 2329 transitions. [2024-11-27 20:25:03,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-27 20:25:03,850 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:25:03,851 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:25:03,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-27 20:25:04,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:25:04,052 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 20:25:04,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:25:04,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1836661275, now seen corresponding path program 1 times [2024-11-27 20:25:04,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:25:04,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1322697768] [2024-11-27 20:25:04,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:25:04,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:25:04,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:25:04,055 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:25:04,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-27 20:25:04,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:25:04,341 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 20:25:04,346 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:25:04,357 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 [2024-11-27 20:25:05,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:25:05,107 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 [2024-11-27 20:25:05,129 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-27 20:25:05,130 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 [2024-11-27 20:25:05,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:25:05,136 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:25:05,136 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:25:05,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1322697768] [2024-11-27 20:25:05,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1322697768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:25:05,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:25:05,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:25:05,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232820706] [2024-11-27 20:25:05,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:25:05,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:25:05,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:25:05,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:25:05,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:25:05,139 INFO L87 Difference]: Start difference. First operand 1644 states and 2329 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:25:08,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:25:08,408 INFO L93 Difference]: Finished difference Result 1617 states and 2303 transitions. [2024-11-27 20:25:08,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:25:08,408 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2024-11-27 20:25:08,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:25:08,414 INFO L225 Difference]: With dead ends: 1617 [2024-11-27 20:25:08,414 INFO L226 Difference]: Without dead ends: 1617 [2024-11-27 20:25:08,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:25:08,415 INFO L435 NwaCegarLoop]: 396 mSDtfsCounter, 911 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 1263 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 916 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:25:08,415 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [916 Valid, 894 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1263 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-27 20:25:08,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2024-11-27 20:25:08,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1179. [2024-11-27 20:25:08,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1179 states, 786 states have (on average 1.7646310432569974) internal successors, (1387), 1167 states have internal predecessors, (1387), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-27 20:25:08,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1179 states to 1179 states and 1433 transitions. [2024-11-27 20:25:08,436 INFO L78 Accepts]: Start accepts. Automaton has 1179 states and 1433 transitions. Word has length 62 [2024-11-27 20:25:08,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:25:08,436 INFO L471 AbstractCegarLoop]: Abstraction has 1179 states and 1433 transitions. [2024-11-27 20:25:08,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:25:08,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1179 states and 1433 transitions. [2024-11-27 20:25:08,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-27 20:25:08,437 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:25:08,438 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:25:08,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-27 20:25:08,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:25:08,638 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 20:25:08,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:25:08,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1380689791, now seen corresponding path program 1 times [2024-11-27 20:25:08,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:25:08,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [977097864] [2024-11-27 20:25:08,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:25:08,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:25:08,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:25:08,643 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:25:08,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-27 20:25:08,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:25:08,918 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:25:08,921 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:25:08,928 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 [2024-11-27 20:25:08,948 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 [2024-11-27 20:25:08,977 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 [2024-11-27 20:25:08,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:25:08,987 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:25:08,987 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:25:08,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977097864] [2024-11-27 20:25:08,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977097864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:25:08,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:25:08,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:25:08,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422577032] [2024-11-27 20:25:08,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:25:08,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:25:08,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:25:08,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:25:08,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:25:08,989 INFO L87 Difference]: Start difference. First operand 1179 states and 1433 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:25:11,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:25:11,732 INFO L93 Difference]: Finished difference Result 1178 states and 1432 transitions. [2024-11-27 20:25:11,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:25:11,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-27 20:25:11,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:25:11,736 INFO L225 Difference]: With dead ends: 1178 [2024-11-27 20:25:11,737 INFO L226 Difference]: Without dead ends: 1178 [2024-11-27 20:25:11,737 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:25:11,738 INFO L435 NwaCegarLoop]: 989 mSDtfsCounter, 2 mSDsluCounter, 1672 mSDsCounter, 0 mSdLazyCounter, 1302 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2661 SdHoareTripleChecker+Invalid, 1303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:25:11,738 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2661 Invalid, 1303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1302 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-27 20:25:11,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1178 states. [2024-11-27 20:25:11,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1178 to 1178. [2024-11-27 20:25:11,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1178 states, 786 states have (on average 1.7633587786259541) internal successors, (1386), 1166 states have internal predecessors, (1386), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-27 20:25:11,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1432 transitions. [2024-11-27 20:25:11,756 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1432 transitions. Word has length 67 [2024-11-27 20:25:11,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:25:11,756 INFO L471 AbstractCegarLoop]: Abstraction has 1178 states and 1432 transitions. [2024-11-27 20:25:11,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:25:11,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1432 transitions. [2024-11-27 20:25:11,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-27 20:25:11,757 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:25:11,757 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:25:11,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-27 20:25:11,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:25:11,958 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 20:25:11,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:25:11,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1380689792, now seen corresponding path program 1 times [2024-11-27 20:25:11,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:25:11,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1140374212] [2024-11-27 20:25:11,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:25:11,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:25:11,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:25:11,961 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:25:11,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-27 20:25:12,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:25:12,257 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 20:25:12,260 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:25:12,276 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 [2024-11-27 20:25:12,300 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 [2024-11-27 20:25:12,315 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 [2024-11-27 20:25:12,367 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 [2024-11-27 20:25:12,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:25:12,393 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:25:12,394 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:25:12,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140374212] [2024-11-27 20:25:12,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140374212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:25:12,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:25:12,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:25:12,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177510919] [2024-11-27 20:25:12,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:25:12,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:25:12,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:25:12,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:25:12,395 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:25:12,396 INFO L87 Difference]: Start difference. First operand 1178 states and 1432 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:25:16,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:25:16,357 INFO L93 Difference]: Finished difference Result 1177 states and 1431 transitions. [2024-11-27 20:25:16,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:25:16,357 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-27 20:25:16,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:25:16,361 INFO L225 Difference]: With dead ends: 1177 [2024-11-27 20:25:16,361 INFO L226 Difference]: Without dead ends: 1177 [2024-11-27 20:25:16,361 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:25:16,362 INFO L435 NwaCegarLoop]: 989 mSDtfsCounter, 1 mSDsluCounter, 1679 mSDsCounter, 0 mSdLazyCounter, 1292 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2668 SdHoareTripleChecker+Invalid, 1293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:25:16,362 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2668 Invalid, 1293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1292 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-27 20:25:16,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2024-11-27 20:25:16,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 1177. [2024-11-27 20:25:16,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1177 states, 785 states have (on average 1.7643312101910829) internal successors, (1385), 1165 states have internal predecessors, (1385), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-27 20:25:16,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 1177 states and 1431 transitions. [2024-11-27 20:25:16,378 INFO L78 Accepts]: Start accepts. Automaton has 1177 states and 1431 transitions. Word has length 67 [2024-11-27 20:25:16,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:25:16,379 INFO L471 AbstractCegarLoop]: Abstraction has 1177 states and 1431 transitions. [2024-11-27 20:25:16,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:25:16,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 1431 transitions. [2024-11-27 20:25:16,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-27 20:25:16,379 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:25:16,380 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:25:16,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-27 20:25:16,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:25:16,580 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 20:25:16,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:25:16,581 INFO L85 PathProgramCache]: Analyzing trace with hash 988569510, now seen corresponding path program 1 times [2024-11-27 20:25:16,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:25:16,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1114531505] [2024-11-27 20:25:16,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:25:16,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:25:16,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:25:16,584 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:25:16,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-27 20:25:16,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:25:16,917 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 20:25:16,919 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:25:16,929 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 [2024-11-27 20:25:17,018 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 [2024-11-27 20:25:17,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:25:17,038 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:25:17,038 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:25:17,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114531505] [2024-11-27 20:25:17,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114531505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:25:17,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:25:17,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:25:17,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005951625] [2024-11-27 20:25:17,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:25:17,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:25:17,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:25:17,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:25:17,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:25:17,041 INFO L87 Difference]: Start difference. First operand 1177 states and 1431 transitions. Second operand has 7 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:25:20,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:25:20,859 INFO L93 Difference]: Finished difference Result 1189 states and 1446 transitions. [2024-11-27 20:25:20,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:25:20,860 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2024-11-27 20:25:20,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:25:20,864 INFO L225 Difference]: With dead ends: 1189 [2024-11-27 20:25:20,864 INFO L226 Difference]: Without dead ends: 1189 [2024-11-27 20:25:20,864 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:25:20,865 INFO L435 NwaCegarLoop]: 911 mSDtfsCounter, 61 mSDsluCounter, 2474 mSDsCounter, 0 mSdLazyCounter, 1572 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 3385 SdHoareTripleChecker+Invalid, 1579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:25:20,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 3385 Invalid, 1579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1572 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-27 20:25:20,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1189 states. [2024-11-27 20:25:20,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1189 to 1183. [2024-11-27 20:25:20,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 790 states have (on average 1.7620253164556963) internal successors, (1392), 1170 states have internal predecessors, (1392), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (25), 9 states have call predecessors, (25), 22 states have call successors, (25) [2024-11-27 20:25:20,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1441 transitions. [2024-11-27 20:25:20,886 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1441 transitions. Word has length 75 [2024-11-27 20:25:20,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:25:20,887 INFO L471 AbstractCegarLoop]: Abstraction has 1183 states and 1441 transitions. [2024-11-27 20:25:20,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:25:20,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1441 transitions. [2024-11-27 20:25:20,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-27 20:25:20,888 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:25:20,888 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:25:20,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-27 20:25:21,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:25:21,089 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 20:25:21,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:25:21,089 INFO L85 PathProgramCache]: Analyzing trace with hash 988569511, now seen corresponding path program 1 times [2024-11-27 20:25:21,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:25:21,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [925906982] [2024-11-27 20:25:21,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:25:21,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:25:21,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:25:21,092 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:25:21,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-27 20:25:21,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:25:21,407 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:25:21,410 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:25:21,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:25:21,432 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:25:21,432 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:25:21,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925906982] [2024-11-27 20:25:21,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925906982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:25:21,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:25:21,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:25:21,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806445501] [2024-11-27 20:25:21,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:25:21,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:25:21,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:25:21,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:25:21,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:25:21,435 INFO L87 Difference]: Start difference. First operand 1183 states and 1441 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:25:21,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:25:21,494 INFO L93 Difference]: Finished difference Result 1180 states and 1435 transitions. [2024-11-27 20:25:21,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:25:21,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2024-11-27 20:25:21,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:25:21,499 INFO L225 Difference]: With dead ends: 1180 [2024-11-27 20:25:21,499 INFO L226 Difference]: Without dead ends: 1180 [2024-11-27 20:25:21,501 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:25:21,501 INFO L435 NwaCegarLoop]: 989 mSDtfsCounter, 0 mSDsluCounter, 1973 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2962 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 [2024-11-27 20:25:21,502 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2962 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:25:21,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2024-11-27 20:25:21,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 1180. [2024-11-27 20:25:21,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1180 states, 787 states have (on average 1.763659466327827) internal successors, (1388), 1168 states have internal predecessors, (1388), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-27 20:25:21,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1435 transitions. [2024-11-27 20:25:21,531 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1435 transitions. Word has length 75 [2024-11-27 20:25:21,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:25:21,531 INFO L471 AbstractCegarLoop]: Abstraction has 1180 states and 1435 transitions. [2024-11-27 20:25:21,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:25:21,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1435 transitions. [2024-11-27 20:25:21,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-27 20:25:21,535 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:25:21,535 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] [2024-11-27 20:25:21,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-27 20:25:21,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:25:21,736 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 20:25:21,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:25:21,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1451315366, now seen corresponding path program 1 times [2024-11-27 20:25:21,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:25:21,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2120582808] [2024-11-27 20:25:21,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:25:21,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:25:21,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:25:21,739 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:25:21,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-27 20:25:22,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:25:22,027 INFO L256 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:25:22,029 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:25:22,056 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:25:22,057 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:25:22,153 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:25:22,153 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:25:22,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120582808] [2024-11-27 20:25:22,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120582808] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:25:22,153 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:25:22,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-27 20:25:22,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755632712] [2024-11-27 20:25:22,154 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:25:22,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:25:22,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:25:22,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:25:22,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:25:22,155 INFO L87 Difference]: Start difference. First operand 1180 states and 1435 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:25:22,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:25:22,346 INFO L93 Difference]: Finished difference Result 1192 states and 1452 transitions. [2024-11-27 20:25:22,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:25:22,347 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 76 [2024-11-27 20:25:22,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:25:22,355 INFO L225 Difference]: With dead ends: 1192 [2024-11-27 20:25:22,355 INFO L226 Difference]: Without dead ends: 1192 [2024-11-27 20:25:22,355 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:25:22,359 INFO L435 NwaCegarLoop]: 989 mSDtfsCounter, 6 mSDsluCounter, 2959 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3948 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:25:22,359 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3948 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:25:22,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2024-11-27 20:25:22,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 1190. [2024-11-27 20:25:22,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1190 states, 796 states have (on average 1.7625628140703518) internal successors, (1403), 1177 states have internal predecessors, (1403), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-27 20:25:22,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1190 states to 1190 states and 1450 transitions. [2024-11-27 20:25:22,392 INFO L78 Accepts]: Start accepts. Automaton has 1190 states and 1450 transitions. Word has length 76 [2024-11-27 20:25:22,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:25:22,393 INFO L471 AbstractCegarLoop]: Abstraction has 1190 states and 1450 transitions. [2024-11-27 20:25:22,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:25:22,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1190 states and 1450 transitions. [2024-11-27 20:25:22,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-27 20:25:22,397 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:25:22,397 INFO L218 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:25:22,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-27 20:25:22,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:25:22,598 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 20:25:22,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:25:22,599 INFO L85 PathProgramCache]: Analyzing trace with hash -249520218, now seen corresponding path program 2 times [2024-11-27 20:25:22,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:25:22,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [356847597] [2024-11-27 20:25:22,600 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:25:22,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:25:22,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:25:22,602 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:25:22,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-27 20:25:50,860 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:25:50,860 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:25:50,876 INFO L256 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 20:25:50,880 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:25:51,044 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-27 20:25:51,045 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 [2024-11-27 20:25:51,072 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 [2024-11-27 20:25:51,361 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:25:51,361 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 [2024-11-27 20:25:51,417 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 [2024-11-27 20:25:51,440 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 20:25:51,440 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:25:51,547 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2024-11-27 20:25:51,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2024-11-27 20:25:51,624 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:25:51,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356847597] [2024-11-27 20:25:51,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356847597] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:25:51,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [908990150] [2024-11-27 20:25:51,624 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:25:51,624 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 20:25:51,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 20:25:51,627 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 20:25:51,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-11-27 20:25:53,287 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:25:53,287 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:25:53,321 INFO L256 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:25:53,324 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:25:53,562 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:25:53,562 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:25:53,907 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:25:53,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [908990150] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:25:53,908 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:25:53,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 24 [2024-11-27 20:25:53,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219382892] [2024-11-27 20:25:53,908 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:25:53,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-27 20:25:53,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:25:53,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-27 20:25:53,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=551, Unknown=8, NotChecked=0, Total=650 [2024-11-27 20:25:53,910 INFO L87 Difference]: Start difference. First operand 1190 states and 1450 transitions. Second operand has 24 states, 23 states have (on average 6.217391304347826) internal successors, (143), 23 states have internal predecessors, (143), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:26:07,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:26:07,979 INFO L93 Difference]: Finished difference Result 1214 states and 1481 transitions. [2024-11-27 20:26:07,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-27 20:26:07,980 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.217391304347826) internal successors, (143), 23 states have internal predecessors, (143), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 79 [2024-11-27 20:26:07,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:26:07,983 INFO L225 Difference]: With dead ends: 1214 [2024-11-27 20:26:07,983 INFO L226 Difference]: Without dead ends: 1210 [2024-11-27 20:26:07,985 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=416, Invalid=2330, Unknown=10, NotChecked=0, Total=2756 [2024-11-27 20:26:07,985 INFO L435 NwaCegarLoop]: 507 mSDtfsCounter, 959 mSDsluCounter, 6409 mSDsCounter, 0 mSdLazyCounter, 7353 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 6916 SdHoareTripleChecker+Invalid, 7380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 7353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:26:07,985 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [980 Valid, 6916 Invalid, 7380 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 7353 Invalid, 0 Unknown, 0 Unchecked, 12.8s Time] [2024-11-27 20:26:07,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2024-11-27 20:26:08,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 1198. [2024-11-27 20:26:08,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1198 states, 805 states have (on average 1.7565217391304349) internal successors, (1414), 1185 states have internal predecessors, (1414), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-27 20:26:08,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1198 states to 1198 states and 1461 transitions. [2024-11-27 20:26:08,006 INFO L78 Accepts]: Start accepts. Automaton has 1198 states and 1461 transitions. Word has length 79 [2024-11-27 20:26:08,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:26:08,006 INFO L471 AbstractCegarLoop]: Abstraction has 1198 states and 1461 transitions. [2024-11-27 20:26:08,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.217391304347826) internal successors, (143), 23 states have internal predecessors, (143), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:26:08,007 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states and 1461 transitions. [2024-11-27 20:26:08,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-27 20:26:08,007 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:26:08,008 INFO L218 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:26:08,017 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2024-11-27 20:26:08,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-27 20:26:08,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:26:08,408 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 20:26:08,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:26:08,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1974665127, now seen corresponding path program 1 times [2024-11-27 20:26:08,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:26:08,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1144179235] [2024-11-27 20:26:08,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:26:08,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:26:08,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:26:08,411 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:26:08,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-27 20:26:08,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:26:08,746 INFO L256 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 20:26:08,747 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:26:08,913 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:26:08,913 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:26:09,615 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:26:09,615 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:26:09,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1144179235] [2024-11-27 20:26:09,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1144179235] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:26:09,616 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:26:09,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-11-27 20:26:09,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657600610] [2024-11-27 20:26:09,616 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:26:09,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-27 20:26:09,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:26:09,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-27 20:26:09,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-11-27 20:26:09,618 INFO L87 Difference]: Start difference. First operand 1198 states and 1461 transitions. Second operand has 26 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 26 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:26:11,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:26:11,942 INFO L93 Difference]: Finished difference Result 1222 states and 1500 transitions. [2024-11-27 20:26:11,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-27 20:26:11,943 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 26 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 85 [2024-11-27 20:26:11,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:26:11,946 INFO L225 Difference]: With dead ends: 1222 [2024-11-27 20:26:11,946 INFO L226 Difference]: Without dead ends: 1216 [2024-11-27 20:26:11,947 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-11-27 20:26:11,947 INFO L435 NwaCegarLoop]: 989 mSDtfsCounter, 23 mSDsluCounter, 10848 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 11837 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:26:11,947 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 11837 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 20:26:11,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2024-11-27 20:26:11,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 1216. [2024-11-27 20:26:11,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1216 states, 823 states have (on average 1.7460510328068044) internal successors, (1437), 1203 states have internal predecessors, (1437), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-27 20:26:11,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1216 states to 1216 states and 1484 transitions. [2024-11-27 20:26:11,976 INFO L78 Accepts]: Start accepts. Automaton has 1216 states and 1484 transitions. Word has length 85 [2024-11-27 20:26:11,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:26:11,976 INFO L471 AbstractCegarLoop]: Abstraction has 1216 states and 1484 transitions. [2024-11-27 20:26:11,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 26 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:26:11,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1216 states and 1484 transitions. [2024-11-27 20:26:11,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-27 20:26:11,978 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:26:11,978 INFO L218 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:26:11,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-27 20:26:12,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:26:12,179 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 20:26:12,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:26:12,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1996472231, now seen corresponding path program 2 times [2024-11-27 20:26:12,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:26:12,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [197847148] [2024-11-27 20:26:12,180 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:26:12,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:26:12,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:26:12,181 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:26:12,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-27 20:27:02,745 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:27:02,745 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:27:02,769 INFO L256 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-11-27 20:27:02,778 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:27:02,922 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 [2024-11-27 20:27:02,939 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-27 20:27:02,939 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 [2024-11-27 20:27:02,989 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 [2024-11-27 20:27:02,999 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 [2024-11-27 20:27:03,143 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 [2024-11-27 20:27:03,153 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 [2024-11-27 20:27:03,799 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:27:03,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-27 20:27:03,810 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 [2024-11-27 20:27:03,871 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 [2024-11-27 20:27:03,877 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 [2024-11-27 20:27:03,908 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-27 20:27:03,908 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:27:04,572 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_1841 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1842 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv20 32) (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_1841) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_1842) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_1841 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_1841) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv16 32) .cse1) (bvadd (_ bv20 32) .cse1)))))) is different from false [2024-11-27 20:27:04,577 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:27:04,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197847148] [2024-11-27 20:27:04,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197847148] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:27:04,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2004902291] [2024-11-27 20:27:04,577 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:27:04,577 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 20:27:04,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 20:27:04,579 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 20:27:04,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2024-11-27 20:27:06,599 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:27:06,599 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:27:06,642 INFO L256 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-27 20:27:06,645 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:27:07,774 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:27:07,774 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:27:10,406 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:27:10,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2004902291] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:27:10,406 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:27:10,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 26, 26] total 58 [2024-11-27 20:27:10,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449885158] [2024-11-27 20:27:10,407 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:27:10,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-11-27 20:27:10,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:27:10,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-11-27 20:27:10,410 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=699, Invalid=2844, Unknown=1, NotChecked=116, Total=3660 [2024-11-27 20:27:10,410 INFO L87 Difference]: Start difference. First operand 1216 states and 1484 transitions. Second operand has 58 states, 57 states have (on average 3.1403508771929824) internal successors, (179), 58 states have internal predecessors, (179), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:27:57,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:27:57,054 INFO L93 Difference]: Finished difference Result 1267 states and 1565 transitions. [2024-11-27 20:27:57,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2024-11-27 20:27:57,055 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 57 states have (on average 3.1403508771929824) internal successors, (179), 58 states have internal predecessors, (179), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 97 [2024-11-27 20:27:57,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:27:57,058 INFO L225 Difference]: With dead ends: 1267 [2024-11-27 20:27:57,058 INFO L226 Difference]: Without dead ends: 1259 [2024-11-27 20:27:57,061 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 235 SyntacticMatches, 1 SemanticMatches, 134 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3088 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=3106, Invalid=14987, Unknown=1, NotChecked=266, Total=18360 [2024-11-27 20:27:57,061 INFO L435 NwaCegarLoop]: 577 mSDtfsCounter, 927 mSDsluCounter, 16421 mSDsCounter, 0 mSdLazyCounter, 16307 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 932 SdHoareTripleChecker+Valid, 16998 SdHoareTripleChecker+Invalid, 16367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 16307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:27:57,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [932 Valid, 16998 Invalid, 16367 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [60 Valid, 16307 Invalid, 0 Unknown, 0 Unchecked, 35.9s Time] [2024-11-27 20:27:57,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1259 states. [2024-11-27 20:27:57,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1259 to 1249. [2024-11-27 20:27:57,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1249 states, 857 states have (on average 1.7246207701283547) internal successors, (1478), 1236 states have internal predecessors, (1478), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-27 20:27:57,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 1525 transitions. [2024-11-27 20:27:57,080 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 1525 transitions. Word has length 97 [2024-11-27 20:27:57,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:27:57,080 INFO L471 AbstractCegarLoop]: Abstraction has 1249 states and 1525 transitions. [2024-11-27 20:27:57,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 57 states have (on average 3.1403508771929824) internal successors, (179), 58 states have internal predecessors, (179), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:27:57,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 1525 transitions. [2024-11-27 20:27:57,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-27 20:27:57,081 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:27:57,082 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:27:57,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2024-11-27 20:27:57,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-27 20:27:57,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:27:57,483 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr84REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 20:27:57,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:27:57,483 INFO L85 PathProgramCache]: Analyzing trace with hash -96577598, now seen corresponding path program 1 times [2024-11-27 20:27:57,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:27:57,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1854703678] [2024-11-27 20:27:57,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:27:57,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:27:57,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:27:57,486 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:27:57,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-27 20:27:58,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:27:58,084 INFO L256 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-27 20:27:58,093 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:27:58,096 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 [2024-11-27 20:27:58,238 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-27 20:27:58,239 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 [2024-11-27 20:27:58,254 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 [2024-11-27 20:27:58,693 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:27:58,693 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 [2024-11-27 20:27:58,756 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:27:58,756 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 [2024-11-27 20:27:58,802 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 [2024-11-27 20:27:58,826 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-27 20:27:58,826 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:27:58,882 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2024-11-27 20:27:58,882 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 [2024-11-27 20:27:58,946 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2501 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= .cse0 (select (select (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_2501) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))) is different from false [2024-11-27 20:27:59,424 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2501 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2547 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_2547)) (.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (store .cse1 .cse0 v_ArrVal_2501) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))) is different from false [2024-11-27 20:27:59,426 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:27:59,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854703678] [2024-11-27 20:27:59,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854703678] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:27:59,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [552147742] [2024-11-27 20:27:59,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:27:59,426 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 20:27:59,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 20:27:59,428 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 20:27:59,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2024-11-27 20:28:03,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:28:03,093 INFO L256 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-11-27 20:28:03,103 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:28:03,110 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 [2024-11-27 20:28:03,319 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-27 20:28:03,320 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 [2024-11-27 20:28:03,399 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 [2024-11-27 20:28:03,633 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 [2024-11-27 20:28:04,959 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:28:04,960 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 [2024-11-27 20:28:05,127 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:28:05,128 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 [2024-11-27 20:28:05,160 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 [2024-11-27 20:28:05,236 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-27 20:28:05,237 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:28:05,262 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2970 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_2970) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) is different from false [2024-11-27 20:28:05,273 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2970 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_2970) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-27 20:28:05,734 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2970 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3016 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3016))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2970)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-27 20:28:05,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [552147742] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:28:05,736 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:28:05,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2024-11-27 20:28:05,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170110445] [2024-11-27 20:28:05,737 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:28:05,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 20:28:05,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:28:05,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 20:28:05,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=312, Unknown=11, NotChecked=200, Total=600 [2024-11-27 20:28:05,738 INFO L87 Difference]: Start difference. First operand 1249 states and 1525 transitions. Second operand has 18 states, 15 states have (on average 6.4) internal successors, (96), 18 states have internal predecessors, (96), 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) [2024-11-27 20:28:14,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:28:14,673 INFO L93 Difference]: Finished difference Result 1258 states and 1534 transitions. [2024-11-27 20:28:14,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 20:28:14,675 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 6.4) internal successors, (96), 18 states have internal predecessors, (96), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 122 [2024-11-27 20:28:14,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:28:14,678 INFO L225 Difference]: With dead ends: 1258 [2024-11-27 20:28:14,679 INFO L226 Difference]: Without dead ends: 1258 [2024-11-27 20:28:14,679 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 232 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=86, Invalid=343, Unknown=11, NotChecked=210, Total=650 [2024-11-27 20:28:14,680 INFO L435 NwaCegarLoop]: 508 mSDtfsCounter, 913 mSDsluCounter, 2952 mSDsCounter, 0 mSdLazyCounter, 3589 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 3460 SdHoareTripleChecker+Invalid, 3636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 3589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:28:14,680 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [933 Valid, 3460 Invalid, 3636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 3589 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2024-11-27 20:28:14,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2024-11-27 20:28:14,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 1248. [2024-11-27 20:28:14,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1248 states, 857 states have (on average 1.7234539089848309) internal successors, (1477), 1235 states have internal predecessors, (1477), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-27 20:28:14,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1248 states to 1248 states and 1524 transitions. [2024-11-27 20:28:14,716 INFO L78 Accepts]: Start accepts. Automaton has 1248 states and 1524 transitions. Word has length 122 [2024-11-27 20:28:14,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:28:14,717 INFO L471 AbstractCegarLoop]: Abstraction has 1248 states and 1524 transitions. [2024-11-27 20:28:14,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 6.4) internal successors, (96), 18 states have internal predecessors, (96), 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) [2024-11-27 20:28:14,717 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states and 1524 transitions. [2024-11-27 20:28:14,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-27 20:28:14,718 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:28:14,718 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:28:14,736 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2024-11-27 20:28:14,933 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-27 20:28:15,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:28:15,119 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr85REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 20:28:15,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:28:15,120 INFO L85 PathProgramCache]: Analyzing trace with hash -96577597, now seen corresponding path program 1 times [2024-11-27 20:28:15,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:28:15,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [650029922] [2024-11-27 20:28:15,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:28:15,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:28:15,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:28:15,125 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:28:15,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-27 20:28:15,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:28:15,714 INFO L256 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 110 conjuncts are in the unsatisfiable core [2024-11-27 20:28:15,726 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:28:15,890 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-27 20:28:15,890 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 [2024-11-27 20:28:15,899 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 [2024-11-27 20:28:15,945 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 [2024-11-27 20:28:15,954 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 [2024-11-27 20:28:16,058 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 [2024-11-27 20:28:16,068 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 [2024-11-27 20:28:17,006 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:28:17,006 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 62 treesize of output 57 [2024-11-27 20:28:17,022 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 [2024-11-27 20:28:17,163 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:28:17,163 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 [2024-11-27 20:28:17,178 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 [2024-11-27 20:28:17,211 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 [2024-11-27 20:28:17,217 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 [2024-11-27 20:28:17,254 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-27 20:28:17,255 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:28:17,666 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_3485 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3484 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_3485) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_3484) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_3485 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_3485) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv4 32) .cse2) (bvadd (_ bv8 32) .cse2))))))) is different from false [2024-11-27 20:28:19,566 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_3577 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3485 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3576 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3484 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3577))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3576) .cse0 v_ArrVal_3485) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_3484) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_3577 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3485 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3576 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3576) (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3577) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3485) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv4 32) .cse3) (bvadd (_ bv8 32) .cse3)))))) is different from false [2024-11-27 20:28:19,575 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:28:19,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650029922] [2024-11-27 20:28:19,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650029922] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:28:19,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [737159545] [2024-11-27 20:28:19,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:28:19,575 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 20:28:19,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 20:28:19,577 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 20:28:19,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2024-11-27 20:28:23,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:28:23,510 INFO L256 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 74 conjuncts are in the unsatisfiable core [2024-11-27 20:28:23,520 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:28:23,527 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 [2024-11-27 20:28:23,538 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 [2024-11-27 20:28:24,193 INFO L349 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2024-11-27 20:28:24,193 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 [2024-11-27 20:28:24,224 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-27 20:28:24,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-27 20:28:24,307 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 15 treesize of output 1 [2024-11-27 20:28:24,313 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 11 treesize of output 7 [2024-11-27 20:28:24,443 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 17 treesize of output 9 [2024-11-27 20:28:24,514 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 7 treesize of output 3 [2024-11-27 20:28:25,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:28:25,464 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 16 treesize of output 11 [2024-11-27 20:28:25,779 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 34 [2024-11-27 20:28:25,800 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 27 treesize of output 22 [2024-11-27 20:28:26,038 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:28:26,039 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 22 [2024-11-27 20:28:26,054 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:28:26,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2024-11-27 20:28:26,221 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-27 20:28:26,222 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:28:26,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 239 treesize of output 167 [2024-11-27 20:29:22,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [737159545] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:29:22,121 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:29:22,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 19 [2024-11-27 20:29:22,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945121098] [2024-11-27 20:29:22,121 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:29:22,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-27 20:29:22,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:29:22,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-27 20:29:22,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=560, Unknown=15, NotChecked=98, Total=756 [2024-11-27 20:29:22,122 INFO L87 Difference]: Start difference. First operand 1248 states and 1524 transitions. Second operand has 20 states, 17 states have (on average 8.882352941176471) internal successors, (151), 20 states have internal predecessors, (151), 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) [2024-11-27 20:31:30,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:30,103 INFO L93 Difference]: Finished difference Result 1726 states and 2125 transitions. [2024-11-27 20:31:30,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 20:31:30,104 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 8.882352941176471) internal successors, (151), 20 states have internal predecessors, (151), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 122 [2024-11-27 20:31:30,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:30,108 INFO L225 Difference]: With dead ends: 1726 [2024-11-27 20:31:30,109 INFO L226 Difference]: Without dead ends: 1726 [2024-11-27 20:31:30,109 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 229 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 51.8s TimeCoverageRelationStatistics Valid=166, Invalid=949, Unknown=15, NotChecked=130, Total=1260 [2024-11-27 20:31:30,112 INFO L435 NwaCegarLoop]: 412 mSDtfsCounter, 2030 mSDsluCounter, 4949 mSDsCounter, 0 mSdLazyCounter, 9185 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 121.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2035 SdHoareTripleChecker+Valid, 5361 SdHoareTripleChecker+Invalid, 9205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 9185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 124.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:30,112 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2035 Valid, 5361 Invalid, 9205 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 9185 Invalid, 0 Unknown, 0 Unchecked, 124.0s Time] [2024-11-27 20:31:30,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1726 states. [2024-11-27 20:31:30,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1726 to 1247. [2024-11-27 20:31:30,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1247 states, 857 states have (on average 1.7222870478413068) internal successors, (1476), 1234 states have internal predecessors, (1476), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-27 20:31:30,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 1523 transitions. [2024-11-27 20:31:30,134 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 1523 transitions. Word has length 122 [2024-11-27 20:31:30,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:30,135 INFO L471 AbstractCegarLoop]: Abstraction has 1247 states and 1523 transitions. [2024-11-27 20:31:30,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 8.882352941176471) internal successors, (151), 20 states have internal predecessors, (151), 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) [2024-11-27 20:31:30,136 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 1523 transitions. [2024-11-27 20:31:30,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-27 20:31:30,139 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:31:30,139 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:30,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-27 20:31:30,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2024-11-27 20:31:30,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-27 20:31:30,540 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr89REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 20:31:30,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:30,540 INFO L85 PathProgramCache]: Analyzing trace with hash 485291342, now seen corresponding path program 1 times [2024-11-27 20:31:30,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:31:30,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [73713196] [2024-11-27 20:31:30,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:30,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:30,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:31:30,543 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:31:30,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-27 20:31:31,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:31,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 114 conjuncts are in the unsatisfiable core [2024-11-27 20:31:31,229 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:31:31,252 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 [2024-11-27 20:31:32,709 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-27 20:31:32,709 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 [2024-11-27 20:31:32,778 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 [2024-11-27 20:31:32,946 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 [2024-11-27 20:31:32,971 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 [2024-11-27 20:31:33,763 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 [2024-11-27 20:31:33,799 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 [2024-11-27 20:31:38,950 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:31:38,950 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 [2024-11-27 20:31:39,024 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 [2024-11-27 20:31:39,714 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:31:39,714 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 62 treesize of output 57 [2024-11-27 20:31:39,792 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 [2024-11-27 20:31:40,418 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:31:40,418 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 [2024-11-27 20:31:40,492 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 [2024-11-27 20:31:40,633 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 [2024-11-27 20:31:40,659 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 [2024-11-27 20:31:40,921 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-27 20:31:40,921 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:31:41,663 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_4537 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_4537) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_4537 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4536 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_4537) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_4536) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-27 20:31:41,769 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_4537 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4536 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_4537) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv12 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_4536) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_4537 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_4537) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse2 (_ bv8 32)) (bvadd .cse2 (_ bv12 32)))))))) is different from false [2024-11-27 20:31:42,013 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_4535 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4534 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4537 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4536 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_4534))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_4535) .cse0 v_ArrVal_4537) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_4536) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_4535 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4534 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4537 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_4535) (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_4534) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4537) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse3) (bvadd (_ bv12 32) .cse3)))))) is different from false [2024-11-27 20:31:42,211 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_4535 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4534 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4537 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_4535) (select (select (store |c_#memory_$Pointer$#2.base| .cse1 v_ArrVal_4534) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_4537) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_4535 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4534 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4537 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4536 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#2.base| .cse1 v_ArrVal_4534))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_4535) .cse3 v_ArrVal_4537) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse4 .cse3 v_ArrVal_4536) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))))) is different from false [2024-11-27 20:31:46,514 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_4629 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4628 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4535 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4534 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4537 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4629))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4628) .cse1 v_ArrVal_4535) (select (select (store .cse2 .cse1 v_ArrVal_4534) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_4537))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_4629 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4628 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4535 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4534 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4537 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4536 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4629))) (let ((.cse4 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse6 (store .cse7 .cse4 v_ArrVal_4534))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv12 32) (select (select (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4628) .cse4 v_ArrVal_4535) .cse5 v_ArrVal_4537) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse6 .cse5 v_ArrVal_4536) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) is different from false [2024-11-27 20:31:46,543 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:31:46,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73713196] [2024-11-27 20:31:46,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73713196] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:31:46,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [154178834] [2024-11-27 20:31:46,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:46,544 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 20:31:46,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 20:31:46,546 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 20:31:46,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2024-11-27 20:32:10,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:10,274 INFO L256 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 115 conjuncts are in the unsatisfiable core [2024-11-27 20:32:10,287 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:32:10,314 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 [2024-11-27 20:32:11,630 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 [2024-11-27 20:32:11,763 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-27 20:32:11,763 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 [2024-11-27 20:32:11,816 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 [2024-11-27 20:32:11,842 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 [2024-11-27 20:32:12,304 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 [2024-11-27 20:32:12,329 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 [2024-11-27 20:32:17,343 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:32:17,343 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 [2024-11-27 20:32:17,371 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 [2024-11-27 20:32:17,870 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:32:17,870 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 [2024-11-27 20:32:17,896 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 [2024-11-27 20:32:18,321 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:32:18,321 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 [2024-11-27 20:32:18,347 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 [2024-11-27 20:32:18,519 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 [2024-11-27 20:32:18,544 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 [2024-11-27 20:32:18,593 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-27 20:32:18,593 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:32:18,841 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5116 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_5116) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_5115 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5116 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_5116) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_5115) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-27 20:32:18,937 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_5115 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5116 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_5116) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_5115) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_5116 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_5116) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse2) (bvadd (_ bv12 32) .cse2))))))) is different from false [2024-11-27 20:32:19,128 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5113 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5114 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5115 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5116 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_5114))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_5113) .cse0 v_ArrVal_5116) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_5115) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_5113 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5114 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5116 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_5113) (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_5114) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5116) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse3) (bvadd (_ bv12 32) .cse3)))))) is different from false [2024-11-27 20:32:19,277 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_5113 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5114 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5116 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_5113) (select (select (store |c_#memory_$Pointer$#2.base| .cse1 v_ArrVal_5114) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_5116) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_5113 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5114 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5115 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5116 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#2.base| .cse1 v_ArrVal_5114))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_5113) .cse3 v_ArrVal_5116) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse4 .cse3 v_ArrVal_5115) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))))) is different from false [2024-11-27 20:32:24,026 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5207 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5208 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5113 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5114 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5115 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5116 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5207))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse3 (store .cse4 .cse0 v_ArrVal_5114))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (select (select (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5208) .cse0 v_ArrVal_5113) .cse1 v_ArrVal_5116) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv12 32)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_5115) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))) (forall ((v_ArrVal_5207 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5208 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5113 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5114 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5116 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (select (select (let ((.cse7 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5207))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5208) .cse6 v_ArrVal_5113) (select (select (store .cse7 .cse6 v_ArrVal_5114) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_5116))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd .cse5 (_ bv8 32)) (bvadd .cse5 (_ bv12 32))))))) is different from false [2024-11-27 20:32:24,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [154178834] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:32:24,047 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:32:24,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2024-11-27 20:32:24,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872237241] [2024-11-27 20:32:24,047 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:32:24,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:32:24,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:32:24,048 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:32:24,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=134, Unknown=10, NotChecked=310, Total=506 [2024-11-27 20:32:24,048 INFO L87 Difference]: Start difference. First operand 1247 states and 1523 transitions. Second operand has 11 states, 9 states have (on average 9.0) internal successors, (81), 11 states have internal predecessors, (81), 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) [2024-11-27 20:33:35,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:35,766 INFO L93 Difference]: Finished difference Result 1254 states and 1530 transitions. [2024-11-27 20:33:35,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:33:35,766 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 9.0) internal successors, (81), 11 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2024-11-27 20:33:35,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:35,769 INFO L225 Difference]: With dead ends: 1254 [2024-11-27 20:33:35,769 INFO L226 Difference]: Without dead ends: 1254 [2024-11-27 20:33:35,769 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 244 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=90, Invalid=282, Unknown=10, NotChecked=430, Total=812 [2024-11-27 20:33:35,770 INFO L435 NwaCegarLoop]: 576 mSDtfsCounter, 824 mSDsluCounter, 2998 mSDsCounter, 0 mSdLazyCounter, 5495 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 68.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 3574 SdHoareTripleChecker+Invalid, 5502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 5495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 70.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:35,770 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [828 Valid, 3574 Invalid, 5502 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 5495 Invalid, 0 Unknown, 0 Unchecked, 70.2s Time] [2024-11-27 20:33:35,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1254 states. [2024-11-27 20:33:35,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1254 to 1246. [2024-11-27 20:33:35,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1246 states, 857 states have (on average 1.721120186697783) internal successors, (1475), 1233 states have internal predecessors, (1475), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-27 20:33:35,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 1522 transitions. [2024-11-27 20:33:35,804 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 1522 transitions. Word has length 125 [2024-11-27 20:33:35,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:35,804 INFO L471 AbstractCegarLoop]: Abstraction has 1246 states and 1522 transitions. [2024-11-27 20:33:35,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 9.0) internal successors, (81), 11 states have internal predecessors, (81), 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) [2024-11-27 20:33:35,805 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 1522 transitions. [2024-11-27 20:33:35,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-27 20:33:35,807 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:35,807 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:33:35,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (29)] Forceful destruction successful, exit code 0 [2024-11-27 20:33:36,022 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-27 20:33:36,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:33:36,208 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr88REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 20:33:36,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:36,209 INFO L85 PathProgramCache]: Analyzing trace with hash 485291341, now seen corresponding path program 1 times [2024-11-27 20:33:36,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:33:36,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1161868958] [2024-11-27 20:33:36,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:36,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:33:36,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:33:36,211 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:33:36,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-27 20:33:36,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:33:36,938 INFO L256 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 60 conjuncts are in the unsatisfiable core [2024-11-27 20:33:36,946 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:33:36,969 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 [2024-11-27 20:33:38,453 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-27 20:33:38,453 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 [2024-11-27 20:33:38,572 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 [2024-11-27 20:33:41,212 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:33:41,212 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 [2024-11-27 20:33:41,786 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:33:41,787 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 [2024-11-27 20:33:42,279 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:33:42,280 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 [2024-11-27 20:33:42,634 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 [2024-11-27 20:33:42,849 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-27 20:33:42,849 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:33:43,240 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2024-11-27 20:33:43,240 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 [2024-11-27 20:33:43,690 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5646 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= .cse0 (select (select (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_5646) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))) is different from false [2024-11-27 20:33:43,773 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5645 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5646 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_5645)) (.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_5646) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) .cse1)))) is different from false [2024-11-27 20:33:45,869 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5645 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5646 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5692 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (let ((.cse3 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5692))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_5645)))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= (select (select (store .cse0 .cse1 v_ArrVal_5646) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) .cse1))))) is different from false [2024-11-27 20:33:45,887 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:33:45,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161868958] [2024-11-27 20:33:45,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161868958] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:33:45,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [748362433] [2024-11-27 20:33:45,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:45,887 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 20:33:45,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 20:33:45,890 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 20:33:45,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2024-11-27 20:34:11,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:11,398 INFO L256 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-11-27 20:34:11,407 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:34:11,445 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 [2024-11-27 20:34:12,967 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-27 20:34:12,967 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 [2024-11-27 20:34:13,389 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 [2024-11-27 20:34:14,496 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 [2024-11-27 20:34:20,957 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:34:20,958 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 [2024-11-27 20:34:22,056 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:34:22,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-27 20:34:22,796 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:34:22,796 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 [2024-11-27 20:34:22,966 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 [2024-11-27 20:34:23,415 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-27 20:34:23,415 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:34:24,119 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6131 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_6131) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-27 20:34:24,202 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6130 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6131 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_6130))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6131)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-27 20:34:24,261 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6130 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6131 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6130))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6131)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-27 20:34:25,877 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6130 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6131 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6177 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6177))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6130)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6131)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2024-11-27 20:34:25,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [748362433] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:34:25,890 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:34:25,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 19 [2024-11-27 20:34:25,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715730615] [2024-11-27 20:34:25,891 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:34:25,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-27 20:34:25,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:34:25,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-27 20:34:25,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=448, Unknown=26, NotChecked=350, Total=930 [2024-11-27 20:34:25,892 INFO L87 Difference]: Start difference. First operand 1246 states and 1522 transitions. Second operand has 20 states, 17 states have (on average 6.0) internal successors, (102), 20 states have internal predecessors, (102), 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) [2024-11-27 20:35:28,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:28,852 INFO L93 Difference]: Finished difference Result 1255 states and 1531 transitions. [2024-11-27 20:35:28,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 20:35:28,853 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 6.0) internal successors, (102), 20 states have internal predecessors, (102), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 125 [2024-11-27 20:35:28,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:28,855 INFO L225 Difference]: With dead ends: 1255 [2024-11-27 20:35:28,855 INFO L226 Difference]: Without dead ends: 1255 [2024-11-27 20:35:28,856 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 238 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=116, Invalid=486, Unknown=26, NotChecked=364, Total=992 [2024-11-27 20:35:28,857 INFO L435 NwaCegarLoop]: 507 mSDtfsCounter, 868 mSDsluCounter, 4407 mSDsCounter, 0 mSdLazyCounter, 5053 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 888 SdHoareTripleChecker+Valid, 4914 SdHoareTripleChecker+Invalid, 5063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 5053 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:28,857 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [888 Valid, 4914 Invalid, 5063 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 5053 Invalid, 0 Unknown, 0 Unchecked, 62.5s Time] [2024-11-27 20:35:28,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2024-11-27 20:35:28,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1245. [2024-11-27 20:35:28,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1245 states, 857 states have (on average 1.719953325554259) internal successors, (1474), 1232 states have internal predecessors, (1474), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-27 20:35:28,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 1521 transitions. [2024-11-27 20:35:28,889 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 1521 transitions. Word has length 125 [2024-11-27 20:35:28,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:28,889 INFO L471 AbstractCegarLoop]: Abstraction has 1245 states and 1521 transitions. [2024-11-27 20:35:28,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 6.0) internal successors, (102), 20 states have internal predecessors, (102), 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) [2024-11-27 20:35:28,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 1521 transitions. [2024-11-27 20:35:28,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-27 20:35:28,891 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:28,891 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:28,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-27 20:35:29,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (31)] Forceful destruction successful, exit code 0 [2024-11-27 20:35:29,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-27 20:35:29,292 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr92REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 20:35:29,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:29,292 INFO L85 PathProgramCache]: Analyzing trace with hash 454853385, now seen corresponding path program 1 times [2024-11-27 20:35:29,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:35:29,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1406770466] [2024-11-27 20:35:29,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:29,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:29,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:35:29,295 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:35:29,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-27 20:35:30,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:30,125 INFO L256 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-11-27 20:35:30,133 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:35:31,585 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-27 20:35:31,585 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 [2024-11-27 20:35:31,708 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 [2024-11-27 20:35:34,284 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:35:34,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-27 20:35:34,741 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:35:34,741 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 [2024-11-27 20:35:35,266 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:35:35,266 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 [2024-11-27 20:35:36,096 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:35:36,096 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 [2024-11-27 20:35:36,215 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 [2024-11-27 20:35:36,443 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-27 20:35:36,444 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:35:36,776 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6630 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_6630) |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 [2024-11-27 20:35:36,830 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6630 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_6630) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-27 20:35:36,974 INFO L349 Elim1Store]: treesize reduction 7, result has 77.4 percent of original size [2024-11-27 20:35:36,974 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 [2024-11-27 20:35:37,019 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6629 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6630 (Array (_ BitVec 32) (_ BitVec 32)))) (= (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_6629))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6630)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) |c_ULTIMATE.start_main_#t~mem39#1.base|)) is different from false [2024-11-27 20:35:37,077 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6629 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6630 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse2 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| .cse2 v_ArrVal_6629))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6630)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse2)))) is different from false [2024-11-27 20:35:37,164 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6628 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6629 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6630 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_6628)) (.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (let ((.cse0 (store .cse2 .cse3 v_ArrVal_6629))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6630)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse3)))) is different from false [2024-11-27 20:35:37,243 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6628 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6629 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6630 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse2 (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6628))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (let ((.cse0 (store .cse2 .cse3 v_ArrVal_6629))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6630)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse3))))) is different from false [2024-11-27 20:35:38,930 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6628 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6629 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6676 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6630 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse3 (let ((.cse4 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6676))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6628)))) (let ((.cse0 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (let ((.cse1 (store .cse3 .cse0 v_ArrVal_6629))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6630)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) is different from false [2024-11-27 20:35:38,943 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:35:38,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406770466] [2024-11-27 20:35:38,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406770466] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:35:38,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [754928480] [2024-11-27 20:35:38,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:38,943 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 20:35:38,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 20:35:38,945 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 20:35:38,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2024-11-27 20:36:12,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:12,354 INFO L256 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-11-27 20:36:12,363 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:36:12,410 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 [2024-11-27 20:36:13,960 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-27 20:36:13,960 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 [2024-11-27 20:36:14,399 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 [2024-11-27 20:36:15,432 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 [2024-11-27 20:36:21,802 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:36:21,802 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 [2024-11-27 20:36:22,848 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:36:22,849 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 [2024-11-27 20:36:23,640 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:36:23,640 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 [2024-11-27 20:36:24,442 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:36:24,443 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 [2024-11-27 20:36:24,628 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 [2024-11-27 20:36:25,087 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-27 20:36:25,087 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:36:25,201 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7131 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_7131) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) is different from false [2024-11-27 20:36:25,257 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7131 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_7131) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-27 20:36:25,338 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7130 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7131 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_7130))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7131)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-27 20:36:25,414 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7130 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7131 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7130))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7131)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-27 20:36:25,497 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7130 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7131 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7129 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_7129))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7130)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7131)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-27 20:36:25,559 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7130 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7131 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7129 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7129))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7130)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7131)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-27 20:36:27,184 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7130 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7131 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7129 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7177 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7177))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7129)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7130)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7131)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2024-11-27 20:36:27,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [754928480] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:36:27,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:36:27,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 21 [2024-11-27 20:36:27,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460555795] [2024-11-27 20:36:27,199 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:36:27,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-27 20:36:27,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:36:27,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-27 20:36:27,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=433, Unknown=14, NotChecked=770, Total=1332 [2024-11-27 20:36:27,200 INFO L87 Difference]: Start difference. First operand 1245 states and 1521 transitions. Second operand has 22 states, 19 states have (on average 5.894736842105263) internal successors, (112), 22 states have internal predecessors, (112), 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) [2024-11-27 20:37:31,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:37:31,112 INFO L93 Difference]: Finished difference Result 1254 states and 1530 transitions. [2024-11-27 20:37:31,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 20:37:31,113 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 5.894736842105263) internal successors, (112), 22 states have internal predecessors, (112), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 128 [2024-11-27 20:37:31,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:37:31,117 INFO L225 Difference]: With dead ends: 1254 [2024-11-27 20:37:31,117 INFO L226 Difference]: Without dead ends: 1254 [2024-11-27 20:37:31,118 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 244 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 14 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=124, Invalid=470, Unknown=14, NotChecked=798, Total=1406 [2024-11-27 20:37:31,118 INFO L435 NwaCegarLoop]: 506 mSDtfsCounter, 901 mSDsluCounter, 4402 mSDsCounter, 0 mSdLazyCounter, 5158 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 921 SdHoareTripleChecker+Valid, 4908 SdHoareTripleChecker+Invalid, 5205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 5158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:37:31,118 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [921 Valid, 4908 Invalid, 5205 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [47 Valid, 5158 Invalid, 0 Unknown, 0 Unchecked, 63.5s Time] [2024-11-27 20:37:31,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1254 states. [2024-11-27 20:37:31,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1254 to 1244. [2024-11-27 20:37:31,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1244 states, 857 states have (on average 1.7187864644107351) internal successors, (1473), 1231 states have internal predecessors, (1473), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-27 20:37:31,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 1520 transitions. [2024-11-27 20:37:31,136 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 1520 transitions. Word has length 128 [2024-11-27 20:37:31,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:37:31,137 INFO L471 AbstractCegarLoop]: Abstraction has 1244 states and 1520 transitions. [2024-11-27 20:37:31,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 5.894736842105263) internal successors, (112), 22 states have internal predecessors, (112), 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) [2024-11-27 20:37:31,137 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 1520 transitions. [2024-11-27 20:37:31,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-27 20:37:31,139 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:37:31,139 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:37:31,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-27 20:37:31,376 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (33)] Ended with exit code 0 [2024-11-27 20:37:31,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-27 20:37:31,540 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr93REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-27 20:37:31,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:37:31,541 INFO L85 PathProgramCache]: Analyzing trace with hash 454853386, now seen corresponding path program 1 times [2024-11-27 20:37:31,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:37:31,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2001820652] [2024-11-27 20:37:31,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:37:31,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:37:31,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:37:31,543 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:37:31,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-27 20:37:32,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:37:32,374 INFO L256 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 116 conjuncts are in the unsatisfiable core [2024-11-27 20:37:32,385 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:37:33,721 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-27 20:37:33,721 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 [2024-11-27 20:37:33,766 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 [2024-11-27 20:37:33,945 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 [2024-11-27 20:37:33,994 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 [2024-11-27 20:37:34,694 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 [2024-11-27 20:37:34,720 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 [2024-11-27 20:37:39,807 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:37:39,807 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 [2024-11-27 20:37:39,833 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 [2024-11-27 20:37:40,591 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:37:40,591 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 [2024-11-27 20:37:40,618 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 [2024-11-27 20:37:41,301 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:37:41,301 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 [2024-11-27 20:37:41,375 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 [2024-11-27 20:37:42,021 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:37:42,021 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 [2024-11-27 20:37:42,049 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 [2024-11-27 20:37:42,224 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 [2024-11-27 20:37:42,272 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 [2024-11-27 20:37:42,519 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-27 20:37:42,519 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:37:43,280 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7680 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7679 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv24 32) (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_7679) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_7680) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_7679 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_7679) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv20 32) .cse1) (bvadd (_ bv24 32) .cse1)))))) is different from false [2024-11-27 20:37:43,380 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_7679 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_7679) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_7680 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7679 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv24 32) (select (select (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_7679) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| .cse1 v_ArrVal_7680) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-27 20:37:43,565 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7680 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7679 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7678 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7677 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_7678))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_7677) .cse0 v_ArrVal_7679) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv24 32)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_7680) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_7679 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7678 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7677 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_7677) (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_7678) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7679) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse3 (_ bv20 32)) (bvadd .cse3 (_ bv24 32))))))) is different from false [2024-11-27 20:37:43,713 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_7679 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7678 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7677 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_7677) (select (select (store |c_#memory_$Pointer$#2.base| .cse1 v_ArrVal_7678) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_7679) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_7680 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7679 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7678 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7677 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#2.base| .cse1 v_ArrVal_7678))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv24 32) (select (select (store (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_7677) .cse3 v_ArrVal_7679) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse4 .cse3 v_ArrVal_7680) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))))) is different from false [2024-11-27 20:37:44,062 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7680 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7679 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7678 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7677 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7676 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7675 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_7675))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse3 (store .cse4 .cse0 v_ArrVal_7678))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (select (select (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_7676) .cse0 v_ArrVal_7677) .cse1 v_ArrVal_7679) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv24 32)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_7680) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))) (forall ((v_ArrVal_7679 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7678 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7677 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7676 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7675 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (select (select (let ((.cse7 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_7675))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_7676) .cse6 v_ArrVal_7677) (select (select (store .cse7 .cse6 v_ArrVal_7678) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_7679))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd .cse5 (_ bv20 32)) (bvadd .cse5 (_ bv24 32))))))) is different from false [2024-11-27 20:37:44,559 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$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (and (forall ((v_ArrVal_7680 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7679 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7678 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7677 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7676 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7675 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_7675))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_7678))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_7676) .cse1 v_ArrVal_7677) .cse2 v_ArrVal_7679) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse4 .cse2 v_ArrVal_7680) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))) (forall ((v_ArrVal_7679 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7678 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7677 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7676 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7675 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (select (select (let ((.cse8 (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_7675))) (let ((.cse7 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_7676) .cse7 v_ArrVal_7677) (select (select (store .cse8 .cse7 v_ArrVal_7678) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_7679))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv20 32) .cse6) (bvadd (_ bv24 32) .cse6))))))) is different from false [2024-11-27 20:37:48,772 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7680 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7679 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7678 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7677 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7676 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7675 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7772 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7771 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7772))) (let ((.cse0 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse5 (store .cse6 .cse0 v_ArrVal_7675))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_7678))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7771) .cse0 v_ArrVal_7676) .cse1 v_ArrVal_7677) .cse2 v_ArrVal_7679) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse4 .cse2 v_ArrVal_7680) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) (forall ((v_ArrVal_7679 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7678 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7677 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7676 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7675 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7772 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7771 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (select (select (let ((.cse11 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7772))) (let ((.cse8 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse10 (store .cse11 .cse8 v_ArrVal_7675))) (let ((.cse9 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7771) .cse8 v_ArrVal_7676) .cse9 v_ArrVal_7677) (select (select (store .cse10 .cse9 v_ArrVal_7678) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_7679))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv20 32) .cse7) (bvadd (_ bv24 32) .cse7)))))) is different from false [2024-11-27 20:37:48,812 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:37:48,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001820652] [2024-11-27 20:37:48,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001820652] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:37:48,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1849876084] [2024-11-27 20:37:48,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:37:48,812 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 20:37:48,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 20:37:48,814 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 20:37:48,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6f6dcf-c482-4bec-b175-b215184815e1/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2024-11-27 20:38:24,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:38:24,760 INFO L256 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 118 conjuncts are in the unsatisfiable core [2024-11-27 20:38:24,775 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:38:24,802 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 [2024-11-27 20:38:26,183 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 [2024-11-27 20:38:26,313 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-27 20:38:26,313 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 [2024-11-27 20:38:26,365 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 [2024-11-27 20:38:26,392 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 [2024-11-27 20:38:26,868 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 [2024-11-27 20:38:26,892 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 [2024-11-27 20:38:31,958 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:38:31,958 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 [2024-11-27 20:38:31,986 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 [2024-11-27 20:38:32,538 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:38:32,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-27 20:38:32,588 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 [2024-11-27 20:38:32,975 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:38:32,975 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 [2024-11-27 20:38:33,026 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 [2024-11-27 20:38:33,406 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 20:38:33,406 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 [2024-11-27 20:38:33,433 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 [2024-11-27 20:38:33,611 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 [2024-11-27 20:38:33,660 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 [2024-11-27 20:38:33,690 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-27 20:38:33,690 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:38:34,452 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_8275 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_8275) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_8276 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8275 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv24 32) (select (select (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_8275) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| .cse1 v_ArrVal_8276) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-27 20:38:40,435 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$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (and (forall ((v_ArrVal_8276 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8275 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8274 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8273 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8272 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8271 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_8271))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_8274))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_8272) .cse1 v_ArrVal_8273) .cse2 v_ArrVal_8275) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse4 .cse2 v_ArrVal_8276) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))) (forall ((v_ArrVal_8275 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8274 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8273 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8272 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8271 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (select (select (let ((.cse8 (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_8271))) (let ((.cse7 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_8272) .cse7 v_ArrVal_8273) (select (select (store .cse8 .cse7 v_ArrVal_8274) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_8275))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv20 32) .cse6) (bvadd (_ bv24 32) .cse6))))))) is different from false [2024-11-27 20:38:44,723 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8276 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8275 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8274 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8273 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8272 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8271 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8368 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8367 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8368))) (let ((.cse0 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse5 (store .cse6 .cse0 v_ArrVal_8271))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_8274))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8367) .cse0 v_ArrVal_8272) .cse1 v_ArrVal_8273) .cse2 v_ArrVal_8275) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse4 .cse2 v_ArrVal_8276) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) (forall ((v_ArrVal_8275 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8274 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8273 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8272 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8271 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8368 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8367 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (select (select (let ((.cse11 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8368))) (let ((.cse8 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse10 (store .cse11 .cse8 v_ArrVal_8271))) (let ((.cse9 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8367) .cse8 v_ArrVal_8272) .cse9 v_ArrVal_8273) (select (select (store .cse10 .cse9 v_ArrVal_8274) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_8275))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv20 32) .cse7) (bvadd (_ bv24 32) .cse7)))))) is different from false [2024-11-27 20:38:44,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1849876084] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:38:44,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:38:44,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2024-11-27 20:38:44,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73151742] [2024-11-27 20:38:44,751 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:38:44,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 20:38:44,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:38:44,752 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 20:38:44,752 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=233, Unknown=41, NotChecked=410, Total=756 [2024-11-27 20:38:44,753 INFO L87 Difference]: Start difference. First operand 1244 states and 1520 transitions. Second operand has 12 states, 10 states have (on average 8.8) internal successors, (88), 12 states have internal predecessors, (88), 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)