./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/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_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2dcad53e9f7fd6e0b6384d19db4719ec6aa2601fd94c6ce0d3c746f1ec6b3601 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:42:06,239 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:42:06,326 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-28 02:42:06,332 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:42:06,332 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:42:06,358 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:42:06,359 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:42:06,359 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:42:06,359 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:42:06,360 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:42:06,360 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:42:06,360 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:42:06,360 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:42:06,361 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:42:06,361 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:42:06,361 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:42:06,361 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:42:06,361 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:42:06,361 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:42:06,362 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:42:06,362 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:42:06,362 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:42:06,362 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 02:42:06,362 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 02:42:06,362 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:42:06,363 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:42:06,363 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:42:06,366 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:42:06,366 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:42:06,366 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:42:06,366 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:42:06,366 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:42:06,367 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:42:06,367 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:42:06,367 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:42:06,367 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:42:06,367 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:42:06,367 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:42:06,367 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:42:06,367 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:42:06,367 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:42:06,367 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:42:06,367 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:42:06,368 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:42:06,368 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:42:06,368 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:42:06,368 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:42:06,368 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:42:06,368 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:42:06,368 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:42:06,368 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_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2dcad53e9f7fd6e0b6384d19db4719ec6aa2601fd94c6ce0d3c746f1ec6b3601 [2024-11-28 02:42:06,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:42:06,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:42:06,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:42:06,743 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:42:06,743 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:42:06,745 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-3.i [2024-11-28 02:42:09,813 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/data/197c08601/1dab0c171c274d0f85c6ed48f6a25c32/FLAGad55083a4 [2024-11-28 02:42:10,224 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:42:10,226 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-3.i [2024-11-28 02:42:10,251 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/data/197c08601/1dab0c171c274d0f85c6ed48f6a25c32/FLAGad55083a4 [2024-11-28 02:42:10,278 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/data/197c08601/1dab0c171c274d0f85c6ed48f6a25c32 [2024-11-28 02:42:10,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:42:10,282 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:42:10,286 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:42:10,286 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:42:10,291 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:42:10,291 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:42:10" (1/1) ... [2024-11-28 02:42:10,292 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63904506 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:10, skipping insertion in model container [2024-11-28 02:42:10,293 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:42:10" (1/1) ... [2024-11-28 02:42:10,362 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:42:10,884 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:10,933 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:10,939 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:10,943 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:10,950 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:10,986 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:10,989 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:10,992 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:10,999 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:11,012 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:11,014 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:11,016 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:11,018 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:11,019 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:11,020 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:11,025 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:11,027 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:11,028 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:11,029 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:11,033 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:11,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:42:11,054 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-11-28 02:42:11,054 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6986193a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:11, skipping insertion in model container [2024-11-28 02:42:11,054 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:42:11,055 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-28 02:42:11,056 INFO L158 Benchmark]: Toolchain (without parser) took 773.85ms. Allocated memory is still 142.6MB. Free memory was 115.3MB in the beginning and 93.8MB in the end (delta: 21.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 02:42:11,057 INFO L158 Benchmark]: CDTParser took 0.85ms. Allocated memory is still 117.4MB. Free memory was 74.6MB in the beginning and 74.5MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:42:11,057 INFO L158 Benchmark]: CACSL2BoogieTranslator took 768.75ms. Allocated memory is still 142.6MB. Free memory was 115.3MB in the beginning and 93.8MB in the end (delta: 21.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 02:42:11,058 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.85ms. Allocated memory is still 117.4MB. Free memory was 74.6MB in the beginning and 74.5MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 768.75ms. Allocated memory is still 142.6MB. Free memory was 115.3MB in the beginning and 93.8MB in the end (delta: 21.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 769]: 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_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/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_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2dcad53e9f7fd6e0b6384d19db4719ec6aa2601fd94c6ce0d3c746f1ec6b3601 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:42:13,537 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:42:13,623 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2024-11-28 02:42:13,631 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:42:13,632 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:42:13,690 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:42:13,691 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:42:13,691 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:42:13,691 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:42:13,691 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:42:13,691 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:42:13,691 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:42:13,692 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:42:13,692 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:42:13,692 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:42:13,694 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:42:13,694 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:42:13,694 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:42:13,695 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:42:13,695 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:42:13,695 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:42:13,695 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:42:13,696 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 02:42:13,696 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 02:42:13,696 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:42:13,696 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:42:13,696 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:42:13,696 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 02:42:13,696 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 02:42:13,697 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:42:13,697 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:42:13,697 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:42:13,697 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:42:13,697 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:42:13,698 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:42:13,698 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:42:13,698 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:42:13,698 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:42:13,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:42:13,698 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:42:13,698 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:42:13,699 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:42:13,699 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:42:13,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:42:13,699 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:42:13,699 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:42:13,699 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 02:42:13,699 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 02:42:13,699 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:42:13,699 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:42:13,700 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:42:13,700 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:42:13,700 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_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2dcad53e9f7fd6e0b6384d19db4719ec6aa2601fd94c6ce0d3c746f1ec6b3601 [2024-11-28 02:42:14,018 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:42:14,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:42:14,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:42:14,034 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:42:14,035 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:42:14,036 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-3.i [2024-11-28 02:42:17,078 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/data/3a44fa5cc/7a2c8a47b0a8454789351e18aa89fac0/FLAGf94c4de7d [2024-11-28 02:42:17,533 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:42:17,536 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-3.i [2024-11-28 02:42:17,562 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/data/3a44fa5cc/7a2c8a47b0a8454789351e18aa89fac0/FLAGf94c4de7d [2024-11-28 02:42:17,585 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/data/3a44fa5cc/7a2c8a47b0a8454789351e18aa89fac0 [2024-11-28 02:42:17,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:42:17,591 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:42:17,594 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:42:17,595 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:42:17,603 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:42:17,604 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:42:17" (1/1) ... [2024-11-28 02:42:17,605 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77f2d4d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:17, skipping insertion in model container [2024-11-28 02:42:17,605 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:42:17" (1/1) ... [2024-11-28 02:42:17,673 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:42:18,267 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,309 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,314 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,320 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,330 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,404 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,407 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,411 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,418 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,433 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,435 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,438 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,440 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,442 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,443 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,456 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,458 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,463 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,464 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,472 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:42:18,497 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-28 02:42:18,518 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:42:18,576 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,598 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,601 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,604 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,610 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,639 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,642 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,645 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,658 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,679 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,682 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,685 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,686 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,689 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,692 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,702 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,703 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,704 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,705 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,709 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:42:18,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:42:18,718 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:42:18,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:42:18,946 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:42:18,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:18 WrapperNode [2024-11-28 02:42:18,947 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:42:18,948 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:42:18,948 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:42:18,948 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:42:18,956 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:18" (1/1) ... [2024-11-28 02:42:19,012 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:18" (1/1) ... [2024-11-28 02:42:19,115 INFO L138 Inliner]: procedures = 179, calls = 435, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1428 [2024-11-28 02:42:19,115 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:42:19,116 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:42:19,116 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:42:19,116 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:42:19,127 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:18" (1/1) ... [2024-11-28 02:42:19,127 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:18" (1/1) ... [2024-11-28 02:42:19,138 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:18" (1/1) ... [2024-11-28 02:42:19,368 INFO L175 MemorySlicer]: Split 403 memory accesses to 2 slices as follows [2, 401]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 98 writes are split as follows [0, 98]. [2024-11-28 02:42:19,368 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:18" (1/1) ... [2024-11-28 02:42:19,369 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:18" (1/1) ... [2024-11-28 02:42:19,447 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:18" (1/1) ... [2024-11-28 02:42:19,449 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:18" (1/1) ... [2024-11-28 02:42:19,461 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:18" (1/1) ... [2024-11-28 02:42:19,466 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:18" (1/1) ... [2024-11-28 02:42:19,472 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:18" (1/1) ... [2024-11-28 02:42:19,482 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:42:19,483 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:42:19,483 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:42:19,484 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:42:19,489 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:18" (1/1) ... [2024-11-28 02:42:19,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:42:19,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:42:19,538 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:42:19,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:42:19,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-28 02:42:19,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-28 02:42:19,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 02:42:19,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 02:42:19,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 02:42:19,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 02:42:19,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-28 02:42:19,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-28 02:42:19,624 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-28 02:42:19,624 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-28 02:42:19,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 02:42:19,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:42:19,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 02:42:19,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 02:42:19,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 02:42:19,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 02:42:19,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 02:42:19,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-28 02:42:19,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-28 02:42:19,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 02:42:19,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 02:42:19,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:42:19,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:42:19,996 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:42:19,999 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:42:36,179 INFO L? ?]: Removed 209 outVars from TransFormulas that were not future-live. [2024-11-28 02:42:36,180 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:42:36,203 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:42:36,206 INFO L312 CfgBuilder]: Removed 43 assume(true) statements. [2024-11-28 02:42:36,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:42:36 BoogieIcfgContainer [2024-11-28 02:42:36,206 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:42:36,209 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:42:36,209 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:42:36,215 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:42:36,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:42:17" (1/3) ... [2024-11-28 02:42:36,216 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c385cfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:42:36, skipping insertion in model container [2024-11-28 02:42:36,217 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:18" (2/3) ... [2024-11-28 02:42:36,217 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c385cfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:42:36, skipping insertion in model container [2024-11-28 02:42:36,217 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:42:36" (3/3) ... [2024-11-28 02:42:36,218 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_BER_test4-3.i [2024-11-28 02:42:36,231 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:42:36,233 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_BER_test4-3.i that has 4 procedures, 283 locations, 1 initial locations, 45 loop locations, and 2 error locations. [2024-11-28 02:42:36,292 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:42:36,308 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;@72b56a81, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:42:36,308 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 02:42:36,315 INFO L276 IsEmpty]: Start isEmpty. Operand has 279 states, 258 states have (on average 1.6434108527131783) internal successors, (424), 270 states have internal predecessors, (424), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 02:42:36,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-28 02:42:36,326 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:42:36,326 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:42:36,327 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:42:36,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:42:36,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1019421713, now seen corresponding path program 1 times [2024-11-28 02:42:36,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:42:36,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1949463394] [2024-11-28 02:42:36,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:42:36,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:42:36,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:42:36,348 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:42:36,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:42:36,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:42:36,607 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:42:36,613 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:42:36,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:42:36,727 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:42:36,728 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:42:36,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949463394] [2024-11-28 02:42:36,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1949463394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:42:36,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:42:36,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:42:36,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495712328] [2024-11-28 02:42:36,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:42:36,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:42:36,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:42:36,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:42:36,771 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:42:36,776 INFO L87 Difference]: Start difference. First operand has 279 states, 258 states have (on average 1.6434108527131783) internal successors, (424), 270 states have internal predecessors, (424), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:42:41,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:42:46,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:42:49,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:42:53,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:42:54,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:42:54,229 INFO L93 Difference]: Finished difference Result 410 states and 540 transitions. [2024-11-28 02:42:54,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:42:54,236 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-28 02:42:54,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:42:54,255 INFO L225 Difference]: With dead ends: 410 [2024-11-28 02:42:54,255 INFO L226 Difference]: Without dead ends: 408 [2024-11-28 02:42:54,256 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:42:54,259 INFO L435 NwaCegarLoop]: 366 mSDtfsCounter, 161 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 1025 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:42:54,260 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 1025 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 3 Unknown, 0 Unchecked, 17.4s Time] [2024-11-28 02:42:54,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-11-28 02:42:54,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 408. [2024-11-28 02:42:54,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 385 states have (on average 1.2987012987012987) internal successors, (500), 396 states have internal predecessors, (500), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 02:42:54,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 538 transitions. [2024-11-28 02:42:54,340 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 538 transitions. Word has length 12 [2024-11-28 02:42:54,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:42:54,340 INFO L471 AbstractCegarLoop]: Abstraction has 408 states and 538 transitions. [2024-11-28 02:42:54,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:42:54,341 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 538 transitions. [2024-11-28 02:42:54,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-28 02:42:54,341 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:42:54,342 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:42:54,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:42:54,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:42:54,543 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:42:54,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:42:54,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1382599316, now seen corresponding path program 1 times [2024-11-28 02:42:54,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:42:54,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1216827965] [2024-11-28 02:42:54,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:42:54,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:42:54,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:42:54,546 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:42:54,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:42:54,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:42:54,764 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:42:54,766 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:42:54,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:42:54,838 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:42:54,839 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:42:54,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216827965] [2024-11-28 02:42:54,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216827965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:42:54,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:42:54,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:42:54,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577258988] [2024-11-28 02:42:54,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:42:54,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:42:54,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:42:54,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:42:54,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:42:54,844 INFO L87 Difference]: Start difference. First operand 408 states and 538 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:42:58,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:43:02,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:43:03,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:43:03,485 INFO L93 Difference]: Finished difference Result 462 states and 609 transitions. [2024-11-28 02:43:03,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:43:03,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-28 02:43:03,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:43:03,493 INFO L225 Difference]: With dead ends: 462 [2024-11-28 02:43:03,493 INFO L226 Difference]: Without dead ends: 460 [2024-11-28 02:43:03,494 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:43:03,495 INFO L435 NwaCegarLoop]: 397 mSDtfsCounter, 64 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:43:03,495 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 749 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 2 Unknown, 0 Unchecked, 8.6s Time] [2024-11-28 02:43:03,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2024-11-28 02:43:03,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 412. [2024-11-28 02:43:03,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 389 states have (on average 1.2982005141388175) internal successors, (505), 400 states have internal predecessors, (505), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 02:43:03,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 543 transitions. [2024-11-28 02:43:03,523 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 543 transitions. Word has length 11 [2024-11-28 02:43:03,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:43:03,523 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 543 transitions. [2024-11-28 02:43:03,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:43:03,524 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 543 transitions. [2024-11-28 02:43:03,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-28 02:43:03,525 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:43:03,525 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] [2024-11-28 02:43:03,536 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 02:43:03,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:43:03,726 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:43:03,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:43:03,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1193285991, now seen corresponding path program 1 times [2024-11-28 02:43:03,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:43:03,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1415131051] [2024-11-28 02:43:03,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:43:03,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:43:03,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:43:03,731 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:43:03,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:43:03,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:43:03,993 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:43:03,996 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:43:04,128 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 02:43:04,129 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:43:04,129 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:43:04,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415131051] [2024-11-28 02:43:04,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415131051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:43:04,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:43:04,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:43:04,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283569621] [2024-11-28 02:43:04,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:43:04,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:43:04,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:43:04,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:43:04,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:43:04,132 INFO L87 Difference]: Start difference. First operand 412 states and 543 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:43:05,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:43:05,255 INFO L93 Difference]: Finished difference Result 464 states and 610 transitions. [2024-11-28 02:43:05,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:43:05,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 26 [2024-11-28 02:43:05,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:43:05,263 INFO L225 Difference]: With dead ends: 464 [2024-11-28 02:43:05,263 INFO L226 Difference]: Without dead ends: 464 [2024-11-28 02:43:05,263 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:43:05,264 INFO L435 NwaCegarLoop]: 355 mSDtfsCounter, 123 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:43:05,264 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 701 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 02:43:05,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-11-28 02:43:05,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 410. [2024-11-28 02:43:05,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 387 states have (on average 1.2945736434108528) internal successors, (501), 398 states have internal predecessors, (501), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 02:43:05,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 539 transitions. [2024-11-28 02:43:05,303 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 539 transitions. Word has length 26 [2024-11-28 02:43:05,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:43:05,304 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 539 transitions. [2024-11-28 02:43:05,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:43:05,304 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 539 transitions. [2024-11-28 02:43:05,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-28 02:43:05,305 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:43:05,305 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] [2024-11-28 02:43:05,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 02:43:05,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:43:05,506 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:43:05,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:43:05,507 INFO L85 PathProgramCache]: Analyzing trace with hash -2010934441, now seen corresponding path program 1 times [2024-11-28 02:43:05,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:43:05,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2030242730] [2024-11-28 02:43:05,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:43:05,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:43:05,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:43:05,512 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:43:05,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:43:05,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:43:05,724 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:43:05,727 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:43:05,893 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:43:05,894 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:43:05,894 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:43:05,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030242730] [2024-11-28 02:43:05,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030242730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:43:05,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:43:05,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:43:05,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345552494] [2024-11-28 02:43:05,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:43:05,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:43:05,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:43:05,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:43:05,900 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:43:05,900 INFO L87 Difference]: Start difference. First operand 410 states and 539 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:43:10,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:43:15,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:43:17,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:43:19,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:43:19,884 INFO L93 Difference]: Finished difference Result 464 states and 609 transitions. [2024-11-28 02:43:19,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:43:19,888 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 26 [2024-11-28 02:43:19,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:43:19,891 INFO L225 Difference]: With dead ends: 464 [2024-11-28 02:43:19,891 INFO L226 Difference]: Without dead ends: 458 [2024-11-28 02:43:19,891 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:43:19,892 INFO L435 NwaCegarLoop]: 388 mSDtfsCounter, 125 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:43:19,893 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 1056 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 108 Invalid, 2 Unknown, 0 Unchecked, 13.9s Time] [2024-11-28 02:43:19,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2024-11-28 02:43:19,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 404. [2024-11-28 02:43:19,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 381 states have (on average 1.2965879265091864) internal successors, (494), 392 states have internal predecessors, (494), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 02:43:19,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 532 transitions. [2024-11-28 02:43:19,928 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 532 transitions. Word has length 26 [2024-11-28 02:43:19,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:43:19,928 INFO L471 AbstractCegarLoop]: Abstraction has 404 states and 532 transitions. [2024-11-28 02:43:19,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:43:19,928 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 532 transitions. [2024-11-28 02:43:19,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-28 02:43:19,939 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:43:19,939 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:43:19,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 02:43:20,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:43:20,144 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:43:20,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:43:20,145 INFO L85 PathProgramCache]: Analyzing trace with hash -732384150, now seen corresponding path program 1 times [2024-11-28 02:43:20,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:43:20,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2110898175] [2024-11-28 02:43:20,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:43:20,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:43:20,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:43:20,150 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:43:20,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 02:43:20,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:43:20,958 INFO L256 TraceCheckSpWp]: Trace formula consists of 792 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:43:20,967 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:43:21,112 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:43:21,112 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:43:21,112 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:43:21,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110898175] [2024-11-28 02:43:21,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110898175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:43:21,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:43:21,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:43:21,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009400027] [2024-11-28 02:43:21,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:43:21,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:43:21,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:43:21,115 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:43:21,115 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:43:21,116 INFO L87 Difference]: Start difference. First operand 404 states and 532 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 02:43:21,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:43:21,349 INFO L93 Difference]: Finished difference Result 422 states and 540 transitions. [2024-11-28 02:43:21,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:43:21,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 149 [2024-11-28 02:43:21,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:43:21,352 INFO L225 Difference]: With dead ends: 422 [2024-11-28 02:43:21,353 INFO L226 Difference]: Without dead ends: 422 [2024-11-28 02:43:21,353 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:43:21,354 INFO L435 NwaCegarLoop]: 336 mSDtfsCounter, 23 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:43:21,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 987 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:43:21,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2024-11-28 02:43:21,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 420. [2024-11-28 02:43:21,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 397 states have (on average 1.2594458438287153) internal successors, (500), 408 states have internal predecessors, (500), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 02:43:21,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 538 transitions. [2024-11-28 02:43:21,370 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 538 transitions. Word has length 149 [2024-11-28 02:43:21,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:43:21,371 INFO L471 AbstractCegarLoop]: Abstraction has 420 states and 538 transitions. [2024-11-28 02:43:21,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 02:43:21,371 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 538 transitions. [2024-11-28 02:43:21,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-28 02:43:21,374 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:43:21,374 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:43:21,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 02:43:21,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:43:21,575 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:43:21,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:43:21,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1679422036, now seen corresponding path program 1 times [2024-11-28 02:43:21,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:43:21,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1990627951] [2024-11-28 02:43:21,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:43:21,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:43:21,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:43:21,580 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:43:21,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 02:43:22,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:43:22,352 INFO L256 TraceCheckSpWp]: Trace formula consists of 794 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:43:22,359 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:43:22,394 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 02:43:22,394 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:43:22,394 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:43:22,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1990627951] [2024-11-28 02:43:22,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1990627951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:43:22,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:43:22,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:43:22,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801527015] [2024-11-28 02:43:22,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:43:22,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:43:22,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:43:22,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:43:22,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:43:22,398 INFO L87 Difference]: Start difference. First operand 420 states and 538 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:43:22,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:43:22,601 INFO L93 Difference]: Finished difference Result 460 states and 578 transitions. [2024-11-28 02:43:22,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:43:22,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 149 [2024-11-28 02:43:22,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:43:22,605 INFO L225 Difference]: With dead ends: 460 [2024-11-28 02:43:22,605 INFO L226 Difference]: Without dead ends: 460 [2024-11-28 02:43:22,605 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:43:22,606 INFO L435 NwaCegarLoop]: 338 mSDtfsCounter, 8 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:43:22,606 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 661 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:43:22,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2024-11-28 02:43:22,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 460. [2024-11-28 02:43:22,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 437 states have (on average 1.2356979405034325) internal successors, (540), 448 states have internal predecessors, (540), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 02:43:22,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 578 transitions. [2024-11-28 02:43:22,631 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 578 transitions. Word has length 149 [2024-11-28 02:43:22,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:43:22,635 INFO L471 AbstractCegarLoop]: Abstraction has 460 states and 578 transitions. [2024-11-28 02:43:22,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:43:22,636 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 578 transitions. [2024-11-28 02:43:22,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-28 02:43:22,639 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:43:22,640 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:43:22,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 02:43:22,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:43:22,845 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:43:22,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:43:22,845 INFO L85 PathProgramCache]: Analyzing trace with hash 785586096, now seen corresponding path program 1 times [2024-11-28 02:43:22,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:43:22,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2003121761] [2024-11-28 02:43:22,846 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:43:22,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:43:22,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:43:22,848 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:43:22,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 02:43:23,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:43:23,738 INFO L256 TraceCheckSpWp]: Trace formula consists of 798 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:43:23,744 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:43:23,818 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:43:23,818 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:43:23,819 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:43:23,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003121761] [2024-11-28 02:43:23,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003121761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:43:23,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:43:23,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:43:23,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548182724] [2024-11-28 02:43:23,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:43:23,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:43:23,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:43:23,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:43:23,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:43:23,821 INFO L87 Difference]: Start difference. First operand 460 states and 578 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 02:43:24,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:43:24,016 INFO L93 Difference]: Finished difference Result 436 states and 540 transitions. [2024-11-28 02:43:24,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:43:24,017 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 149 [2024-11-28 02:43:24,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:43:24,019 INFO L225 Difference]: With dead ends: 436 [2024-11-28 02:43:24,019 INFO L226 Difference]: Without dead ends: 436 [2024-11-28 02:43:24,020 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:43:24,021 INFO L435 NwaCegarLoop]: 332 mSDtfsCounter, 27 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:43:24,021 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 984 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:43:24,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-11-28 02:43:24,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 436. [2024-11-28 02:43:24,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 413 states have (on average 1.215496368038741) internal successors, (502), 424 states have internal predecessors, (502), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 02:43:24,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 540 transitions. [2024-11-28 02:43:24,043 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 540 transitions. Word has length 149 [2024-11-28 02:43:24,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:43:24,043 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 540 transitions. [2024-11-28 02:43:24,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 02:43:24,044 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 540 transitions. [2024-11-28 02:43:24,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-28 02:43:24,047 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:43:24,047 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:43:24,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 02:43:24,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:43:24,249 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:43:24,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:43:24,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1694668002, now seen corresponding path program 1 times [2024-11-28 02:43:24,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:43:24,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [50660298] [2024-11-28 02:43:24,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:43:24,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:43:24,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:43:24,253 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:43:24,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 02:43:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:43:25,110 INFO L256 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:43:25,115 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:43:25,168 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 02:43:25,168 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:43:25,168 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:43:25,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50660298] [2024-11-28 02:43:25,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50660298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:43:25,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:43:25,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:43:25,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752337762] [2024-11-28 02:43:25,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:43:25,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:43:25,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:43:25,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:43:25,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:43:25,171 INFO L87 Difference]: Start difference. First operand 436 states and 540 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:43:25,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:43:25,403 INFO L93 Difference]: Finished difference Result 400 states and 482 transitions. [2024-11-28 02:43:25,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:43:25,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 149 [2024-11-28 02:43:25,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:43:25,406 INFO L225 Difference]: With dead ends: 400 [2024-11-28 02:43:25,406 INFO L226 Difference]: Without dead ends: 400 [2024-11-28 02:43:25,406 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:43:25,407 INFO L435 NwaCegarLoop]: 317 mSDtfsCounter, 32 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:43:25,407 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 937 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:43:25,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-11-28 02:43:25,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2024-11-28 02:43:25,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 377 states have (on average 1.1777188328912467) internal successors, (444), 388 states have internal predecessors, (444), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 02:43:25,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 482 transitions. [2024-11-28 02:43:25,423 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 482 transitions. Word has length 149 [2024-11-28 02:43:25,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:43:25,424 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 482 transitions. [2024-11-28 02:43:25,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:43:25,424 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 482 transitions. [2024-11-28 02:43:25,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-28 02:43:25,426 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:43:25,426 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:43:25,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 02:43:25,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:43:25,627 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:43:25,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:43:25,627 INFO L85 PathProgramCache]: Analyzing trace with hash 433735316, now seen corresponding path program 1 times [2024-11-28 02:43:25,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:43:25,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1997203319] [2024-11-28 02:43:25,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:43:25,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:43:25,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:43:25,630 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:43:25,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 02:43:26,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:43:26,494 INFO L256 TraceCheckSpWp]: Trace formula consists of 770 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:43:26,499 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:43:26,557 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-28 02:43:26,557 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:43:26,557 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:43:26,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1997203319] [2024-11-28 02:43:26,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1997203319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:43:26,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:43:26,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:43:26,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222163914] [2024-11-28 02:43:26,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:43:26,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:43:26,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:43:26,559 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:43:26,559 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:43:26,560 INFO L87 Difference]: Start difference. First operand 400 states and 482 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:43:26,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:43:26,682 INFO L93 Difference]: Finished difference Result 403 states and 488 transitions. [2024-11-28 02:43:26,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:43:26,686 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 149 [2024-11-28 02:43:26,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:43:26,688 INFO L225 Difference]: With dead ends: 403 [2024-11-28 02:43:26,688 INFO L226 Difference]: Without dead ends: 403 [2024-11-28 02:43:26,689 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:43:26,692 INFO L435 NwaCegarLoop]: 335 mSDtfsCounter, 0 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:43:26,692 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 998 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:43:26,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-28 02:43:26,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 403. [2024-11-28 02:43:26,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 379 states have (on average 1.1794195250659631) internal successors, (447), 391 states have internal predecessors, (447), 19 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2024-11-28 02:43:26,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 488 transitions. [2024-11-28 02:43:26,711 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 488 transitions. Word has length 149 [2024-11-28 02:43:26,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:43:26,712 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 488 transitions. [2024-11-28 02:43:26,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:43:26,712 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 488 transitions. [2024-11-28 02:43:26,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-28 02:43:26,714 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:43:26,714 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:43:26,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 02:43:26,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:43:26,920 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:43:26,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:43:26,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1092721512, now seen corresponding path program 1 times [2024-11-28 02:43:26,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:43:26,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [319925898] [2024-11-28 02:43:26,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:43:26,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:43:26,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:43:26,928 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:43:26,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 02:43:27,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:43:27,862 INFO L256 TraceCheckSpWp]: Trace formula consists of 814 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:43:27,866 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:43:28,547 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-28 02:43:28,548 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:43:29,432 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-28 02:43:29,433 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:43:29,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [319925898] [2024-11-28 02:43:29,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [319925898] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:43:29,433 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:43:29,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2024-11-28 02:43:29,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748659585] [2024-11-28 02:43:29,434 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:43:29,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:43:29,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:43:29,436 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:43:29,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:43:29,436 INFO L87 Difference]: Start difference. First operand 403 states and 488 transitions. Second operand has 6 states, 6 states have (on average 41.833333333333336) internal successors, (251), 6 states have internal predecessors, (251), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 02:43:30,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:43:30,236 INFO L93 Difference]: Finished difference Result 811 states and 972 transitions. [2024-11-28 02:43:30,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:43:30,238 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 41.833333333333336) internal successors, (251), 6 states have internal predecessors, (251), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 153 [2024-11-28 02:43:30,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:43:30,245 INFO L225 Difference]: With dead ends: 811 [2024-11-28 02:43:30,245 INFO L226 Difference]: Without dead ends: 811 [2024-11-28 02:43:30,245 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:43:30,246 INFO L435 NwaCegarLoop]: 590 mSDtfsCounter, 681 mSDsluCounter, 1147 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 1737 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:43:30,246 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 1737 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 02:43:30,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2024-11-28 02:43:30,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 811. [2024-11-28 02:43:30,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 811 states, 772 states have (on average 1.160621761658031) internal successors, (896), 784 states have internal predecessors, (896), 34 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (42), 25 states have call predecessors, (42), 34 states have call successors, (42) [2024-11-28 02:43:30,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 972 transitions. [2024-11-28 02:43:30,279 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 972 transitions. Word has length 153 [2024-11-28 02:43:30,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:43:30,280 INFO L471 AbstractCegarLoop]: Abstraction has 811 states and 972 transitions. [2024-11-28 02:43:30,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 41.833333333333336) internal successors, (251), 6 states have internal predecessors, (251), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 02:43:30,280 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 972 transitions. [2024-11-28 02:43:30,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2024-11-28 02:43:30,294 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:43:30,295 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:43:30,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 02:43:30,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:43:30,495 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:43:30,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:43:30,496 INFO L85 PathProgramCache]: Analyzing trace with hash -278435276, now seen corresponding path program 1 times [2024-11-28 02:43:30,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:43:30,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1745284098] [2024-11-28 02:43:30,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:43:30,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:43:30,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:43:30,500 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:43:30,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 02:43:32,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:43:32,526 INFO L256 TraceCheckSpWp]: Trace formula consists of 2233 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:43:32,534 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:43:32,630 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 149 proven. 1 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2024-11-28 02:43:32,630 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:43:32,878 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 121 proven. 13 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2024-11-28 02:43:32,878 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:43:32,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1745284098] [2024-11-28 02:43:32,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1745284098] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:43:32,879 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:43:32,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-28 02:43:32,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912660414] [2024-11-28 02:43:32,880 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:43:32,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:43:32,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:43:32,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:43:32,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:43:32,884 INFO L87 Difference]: Start difference. First operand 811 states and 972 transitions. Second operand has 8 states, 8 states have (on average 23.375) internal successors, (187), 8 states have internal predecessors, (187), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 02:43:33,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:43:33,192 INFO L93 Difference]: Finished difference Result 822 states and 1003 transitions. [2024-11-28 02:43:33,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 02:43:33,193 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.375) internal successors, (187), 8 states have internal predecessors, (187), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 474 [2024-11-28 02:43:33,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:43:33,199 INFO L225 Difference]: With dead ends: 822 [2024-11-28 02:43:33,199 INFO L226 Difference]: Without dead ends: 822 [2024-11-28 02:43:33,200 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 949 GetRequests, 940 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:43:33,201 INFO L435 NwaCegarLoop]: 333 mSDtfsCounter, 5 mSDsluCounter, 990 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1323 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:43:33,202 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1323 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:43:33,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2024-11-28 02:43:33,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 820. [2024-11-28 02:43:33,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 780 states have (on average 1.1666666666666667) internal successors, (910), 792 states have internal predecessors, (910), 34 states have call successors, (34), 3 states have call predecessors, (34), 4 states have return successors, (50), 25 states have call predecessors, (50), 34 states have call successors, (50) [2024-11-28 02:43:33,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 994 transitions. [2024-11-28 02:43:33,236 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 994 transitions. Word has length 474 [2024-11-28 02:43:33,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:43:33,236 INFO L471 AbstractCegarLoop]: Abstraction has 820 states and 994 transitions. [2024-11-28 02:43:33,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.375) internal successors, (187), 8 states have internal predecessors, (187), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 02:43:33,237 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 994 transitions. [2024-11-28 02:43:33,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2024-11-28 02:43:33,249 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:43:33,250 INFO L218 NwaCegarLoop]: trace histogram [12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:43:33,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 02:43:33,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:43:33,451 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:43:33,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:43:33,453 INFO L85 PathProgramCache]: Analyzing trace with hash -275731144, now seen corresponding path program 2 times [2024-11-28 02:43:33,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:43:33,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1470398319] [2024-11-28 02:43:33,455 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:43:33,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:43:33,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:43:33,458 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:43:33,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 02:43:35,358 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:43:35,358 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:43:35,435 INFO L256 TraceCheckSpWp]: Trace formula consists of 2321 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:43:35,444 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:43:35,613 INFO L134 CoverageAnalysis]: Checked inductivity of 772 backedges. 163 proven. 3 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2024-11-28 02:43:35,613 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:43:36,033 INFO L134 CoverageAnalysis]: Checked inductivity of 772 backedges. 115 proven. 48 refuted. 0 times theorem prover too weak. 609 trivial. 0 not checked. [2024-11-28 02:43:36,033 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:43:36,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470398319] [2024-11-28 02:43:36,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470398319] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:43:36,034 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:43:36,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-28 02:43:36,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349561453] [2024-11-28 02:43:36,035 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:43:36,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:43:36,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:43:36,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:43:36,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:43:36,037 INFO L87 Difference]: Start difference. First operand 820 states and 994 transitions. Second operand has 10 states, 10 states have (on average 18.9) internal successors, (189), 10 states have internal predecessors, (189), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 02:43:36,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:43:36,643 INFO L93 Difference]: Finished difference Result 828 states and 1004 transitions. [2024-11-28 02:43:36,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 02:43:36,644 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 18.9) internal successors, (189), 10 states have internal predecessors, (189), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 482 [2024-11-28 02:43:36,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:43:36,648 INFO L225 Difference]: With dead ends: 828 [2024-11-28 02:43:36,648 INFO L226 Difference]: Without dead ends: 826 [2024-11-28 02:43:36,649 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 967 GetRequests, 954 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:43:36,649 INFO L435 NwaCegarLoop]: 335 mSDtfsCounter, 6 mSDsluCounter, 1648 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1983 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:43:36,650 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1983 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:43:36,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2024-11-28 02:43:36,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 824. [2024-11-28 02:43:36,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 784 states have (on average 1.1683673469387754) internal successors, (916), 796 states have internal predecessors, (916), 34 states have call successors, (34), 3 states have call predecessors, (34), 4 states have return successors, (42), 25 states have call predecessors, (42), 34 states have call successors, (42) [2024-11-28 02:43:36,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 992 transitions. [2024-11-28 02:43:36,677 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 992 transitions. Word has length 482 [2024-11-28 02:43:36,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:43:36,678 INFO L471 AbstractCegarLoop]: Abstraction has 824 states and 992 transitions. [2024-11-28 02:43:36,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 18.9) internal successors, (189), 10 states have internal predecessors, (189), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 02:43:36,678 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 992 transitions. [2024-11-28 02:43:36,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 491 [2024-11-28 02:43:36,683 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:43:36,683 INFO L218 NwaCegarLoop]: trace histogram [20, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:43:36,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-28 02:43:36,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:43:36,884 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:43:36,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:43:36,884 INFO L85 PathProgramCache]: Analyzing trace with hash -229991368, now seen corresponding path program 3 times [2024-11-28 02:43:36,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:43:36,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [981614361] [2024-11-28 02:43:36,886 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:43:36,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:43:36,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:43:36,888 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:43:36,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1b037d8-af02-4b59-9876-7fcdad535d5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process