./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test3-1.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_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/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_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/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_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/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 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 19:56:54,379 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 19:56:54,485 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-27 19:56:54,492 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 19:56:54,492 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 19:56:54,522 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 19:56:54,523 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 19:56:54,523 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 19:56:54,524 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 19:56:54,524 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 19:56:54,525 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 19:56:54,525 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 19:56:54,526 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 19:56:54,526 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 19:56:54,526 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 19:56:54,526 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 19:56:54,527 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 19:56:54,527 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 19:56:54,527 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 19:56:54,527 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 19:56:54,527 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 19:56:54,527 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 19:56:54,527 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-27 19:56:54,528 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-27 19:56:54,528 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 19:56:54,528 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 19:56:54,528 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 19:56:54,528 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 19:56:54,528 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 19:56:54,528 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 19:56:54,529 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 19:56:54,529 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 19:56:54,529 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 19:56:54,529 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:56:54,529 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:56:54,529 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:56:54,529 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:56:54,530 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 19:56:54,530 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:56:54,530 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:56:54,530 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:56:54,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:56:54,530 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 19:56:54,530 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 19:56:54,530 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 19:56:54,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 19:56:54,531 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 19:56:54,531 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 19:56:54,531 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 19:56:54,531 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 19:56:54,531 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_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/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 -> 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f [2024-11-27 19:56:54,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 19:56:54,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 19:56:54,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 19:56:54,936 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 19:56:54,936 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 19:56:54,938 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test3-1.i [2024-11-27 19:56:58,118 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/data/94638efa8/1a9c909ac0474ed2953a387c637d7239/FLAGf19b2ca1e [2024-11-27 19:56:58,559 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 19:56:58,559 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test3-1.i [2024-11-27 19:56:58,585 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/data/94638efa8/1a9c909ac0474ed2953a387c637d7239/FLAGf19b2ca1e [2024-11-27 19:56:58,607 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/data/94638efa8/1a9c909ac0474ed2953a387c637d7239 [2024-11-27 19:56:58,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 19:56:58,612 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 19:56:58,614 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 19:56:58,615 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 19:56:58,620 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 19:56:58,621 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:56:58" (1/1) ... [2024-11-27 19:56:58,622 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d2c9e69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:56:58, skipping insertion in model container [2024-11-27 19:56:58,622 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:56:58" (1/1) ... [2024-11-27 19:56:58,698 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 19:56:59,162 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:56:59,196 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:56:59,201 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:56:59,204 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:56:59,216 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:56:59,279 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:56:59,280 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:56:59,284 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:56:59,285 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:56:59,288 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:56:59,290 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:56:59,291 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:56:59,292 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:56:59,297 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:56:59,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:56:59,316 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-11-27 19:56:59,316 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@46687067 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:56:59, skipping insertion in model container [2024-11-27 19:56:59,317 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 19:56:59,317 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-27 19:56:59,319 INFO L158 Benchmark]: Toolchain (without parser) took 707.01ms. Allocated memory is still 142.6MB. Free memory was 115.2MB in the beginning and 95.9MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 19:56:59,319 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 117.4MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:56:59,320 INFO L158 Benchmark]: CACSL2BoogieTranslator took 702.75ms. Allocated memory is still 142.6MB. Free memory was 115.0MB in the beginning and 95.9MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 19:56:59,321 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 117.4MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 702.75ms. Allocated memory is still 142.6MB. Free memory was 115.0MB in the beginning and 95.9MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 750]: 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_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/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_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/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_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/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 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 19:57:02,093 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 19:57:02,228 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2024-11-27 19:57:02,241 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 19:57:02,241 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 19:57:02,297 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 19:57:02,298 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 19:57:02,299 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 19:57:02,299 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 19:57:02,300 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 19:57:02,300 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 19:57:02,300 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 19:57:02,301 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 19:57:02,301 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 19:57:02,301 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 19:57:02,301 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 19:57:02,301 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 19:57:02,301 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 19:57:02,302 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 19:57:02,302 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 19:57:02,302 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 19:57:02,302 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 19:57:02,302 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-27 19:57:02,302 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-27 19:57:02,302 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 19:57:02,302 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 19:57:02,302 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 19:57:02,303 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-27 19:57:02,303 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-27 19:57:02,303 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 19:57:02,303 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 19:57:02,303 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 19:57:02,303 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 19:57:02,303 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 19:57:02,306 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 19:57:02,306 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:57:02,306 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:57:02,307 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:57:02,307 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:57:02,307 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 19:57:02,307 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:57:02,307 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:57:02,307 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:57:02,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:57:02,308 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 19:57:02,309 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 19:57:02,309 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-27 19:57:02,309 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-27 19:57:02,309 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 19:57:02,309 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 19:57:02,310 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 19:57:02,310 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 19:57:02,311 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_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/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 -> 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f [2024-11-27 19:57:02,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 19:57:02,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 19:57:02,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 19:57:02,693 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 19:57:02,694 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 19:57:02,695 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test3-1.i [2024-11-27 19:57:06,670 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/data/eeaac73b8/3754415730974ac7aa68fbc48c84e667/FLAG5e19ec9cc [2024-11-27 19:57:07,194 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 19:57:07,195 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test3-1.i [2024-11-27 19:57:07,216 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/data/eeaac73b8/3754415730974ac7aa68fbc48c84e667/FLAG5e19ec9cc [2024-11-27 19:57:07,237 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/data/eeaac73b8/3754415730974ac7aa68fbc48c84e667 [2024-11-27 19:57:07,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 19:57:07,242 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 19:57:07,244 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 19:57:07,245 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 19:57:07,251 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 19:57:07,253 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:57:07" (1/1) ... [2024-11-27 19:57:07,254 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ddab0eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:57:07, skipping insertion in model container [2024-11-27 19:57:07,254 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:57:07" (1/1) ... [2024-11-27 19:57:07,312 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 19:57:08,068 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:57:08,150 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:57:08,161 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:57:08,175 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:57:08,196 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:57:08,281 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:57:08,281 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:57:08,285 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:57:08,286 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:57:08,290 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:57:08,292 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:57:08,294 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:57:08,295 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:57:08,303 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:57:08,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:57:08,339 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-27 19:57:08,357 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 19:57:08,392 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:57:08,415 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:57:08,418 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:57:08,428 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:57:08,439 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:57:08,495 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:57:08,496 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:57:08,499 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:57:08,500 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:57:08,503 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:57:08,505 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:57:08,506 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:57:08,507 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:57:08,513 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 19:57:08,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:57:08,529 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 19:57:08,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:57:08,831 INFO L204 MainTranslator]: Completed translation [2024-11-27 19:57:08,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:57:08 WrapperNode [2024-11-27 19:57:08,831 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 19:57:08,832 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 19:57:08,832 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 19:57:08,833 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 19:57:08,841 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:57:08" (1/1) ... [2024-11-27 19:57:08,883 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:57:08" (1/1) ... [2024-11-27 19:57:08,958 INFO L138 Inliner]: procedures = 180, calls = 274, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 996 [2024-11-27 19:57:08,959 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 19:57:08,960 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 19:57:08,960 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 19:57:08,960 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 19:57:08,972 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:57:08" (1/1) ... [2024-11-27 19:57:08,973 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:57:08" (1/1) ... [2024-11-27 19:57:08,985 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:57:08" (1/1) ... [2024-11-27 19:57:09,072 INFO L175 MemorySlicer]: Split 254 memory accesses to 3 slices as follows [2, 218, 34]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 54 writes are split as follows [0, 50, 4]. [2024-11-27 19:57:09,073 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:57:08" (1/1) ... [2024-11-27 19:57:09,073 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:57:08" (1/1) ... [2024-11-27 19:57:09,159 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:57:08" (1/1) ... [2024-11-27 19:57:09,165 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:57:08" (1/1) ... [2024-11-27 19:57:09,182 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:57:08" (1/1) ... [2024-11-27 19:57:09,195 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:57:08" (1/1) ... [2024-11-27 19:57:09,199 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:57:08" (1/1) ... [2024-11-27 19:57:09,218 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 19:57:09,223 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 19:57:09,224 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 19:57:09,224 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 19:57:09,225 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:57:08" (1/1) ... [2024-11-27 19:57:09,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:57:09,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:57:09,286 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 19:57:09,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 19:57:09,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-27 19:57:09,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-27 19:57:09,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-27 19:57:09,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-27 19:57:09,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-27 19:57:09,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-27 19:57:09,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 19:57:09,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 19:57:09,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-27 19:57:09,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-27 19:57:09,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-27 19:57:09,325 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-27 19:57:09,325 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-27 19:57:09,326 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-27 19:57:09,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 19:57:09,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 19:57:09,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-27 19:57:09,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-27 19:57:09,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-27 19:57:09,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-27 19:57:09,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-27 19:57:09,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-27 19:57:09,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-27 19:57:09,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-27 19:57:09,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-27 19:57:09,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-27 19:57:09,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 19:57:09,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-27 19:57:09,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-27 19:57:09,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-27 19:57:09,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 19:57:09,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 19:57:09,659 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 19:57:09,662 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 19:57:20,071 INFO L? ?]: Removed 127 outVars from TransFormulas that were not future-live. [2024-11-27 19:57:20,072 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 19:57:20,088 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 19:57:20,089 INFO L312 CfgBuilder]: Removed 36 assume(true) statements. [2024-11-27 19:57:20,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:57:20 BoogieIcfgContainer [2024-11-27 19:57:20,089 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 19:57:20,092 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 19:57:20,092 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 19:57:20,103 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 19:57:20,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 07:57:07" (1/3) ... [2024-11-27 19:57:20,104 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@512a60e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:57:20, skipping insertion in model container [2024-11-27 19:57:20,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:57:08" (2/3) ... [2024-11-27 19:57:20,104 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@512a60e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:57:20, skipping insertion in model container [2024-11-27 19:57:20,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:57:20" (3/3) ... [2024-11-27 19:57:20,106 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_OAT_nondet_test3-1.i [2024-11-27 19:57:20,125 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 19:57:20,127 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_OAT_nondet_test3-1.i that has 5 procedures, 216 locations, 1 initial locations, 38 loop locations, and 2 error locations. [2024-11-27 19:57:20,179 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 19:57:20,195 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;@69c25b28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 19:57:20,195 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-27 19:57:20,239 INFO L276 IsEmpty]: Start isEmpty. Operand has 208 states, 198 states have (on average 1.6414141414141414) internal successors, (325), 201 states have internal predecessors, (325), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-27 19:57:20,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-27 19:57:20,250 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:20,250 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-27 19:57:20,251 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-27 19:57:20,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:20,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1665236, now seen corresponding path program 1 times [2024-11-27 19:57:20,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:57:20,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [515190598] [2024-11-27 19:57:20,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:20,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:57:20,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:57:20,282 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:57:20,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 19:57:20,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:20,534 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 19:57:20,541 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:57:20,683 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_16| (_ BitVec 32))) (and (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_16| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_16|)))) is different from true [2024-11-27 19:57:20,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:57:20,692 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:57:20,693 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:57:20,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515190598] [2024-11-27 19:57:20,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515190598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:20,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:57:20,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:57:20,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569279093] [2024-11-27 19:57:20,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:20,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:57:20,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:57:20,735 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:57:20,735 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-27 19:57:20,738 INFO L87 Difference]: Start difference. First operand has 208 states, 198 states have (on average 1.6414141414141414) internal successors, (325), 201 states have internal predecessors, (325), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:57:25,032 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 [] [2024-11-27 19:57:25,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:25,973 INFO L93 Difference]: Finished difference Result 306 states and 397 transitions. [2024-11-27 19:57:25,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:57:25,984 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-27 19:57:25,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:25,995 INFO L225 Difference]: With dead ends: 306 [2024-11-27 19:57:25,995 INFO L226 Difference]: Without dead ends: 303 [2024-11-27 19:57:25,997 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-27 19:57:26,001 INFO L435 NwaCegarLoop]: 259 mSDtfsCounter, 124 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 398 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:26,002 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 501 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 1 Unknown, 398 Unchecked, 5.2s Time] [2024-11-27 19:57:26,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-11-27 19:57:26,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 205. [2024-11-27 19:57:26,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 196 states have (on average 1.2857142857142858) internal successors, (252), 198 states have internal predecessors, (252), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-27 19:57:26,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 262 transitions. [2024-11-27 19:57:26,070 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 262 transitions. Word has length 4 [2024-11-27 19:57:26,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:26,070 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 262 transitions. [2024-11-27 19:57:26,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:57:26,071 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 262 transitions. [2024-11-27 19:57:26,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-27 19:57:26,072 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:26,072 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:57:26,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 19:57:26,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:57:26,273 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-27 19:57:26,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:26,275 INFO L85 PathProgramCache]: Analyzing trace with hash -634583496, now seen corresponding path program 1 times [2024-11-27 19:57:26,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:57:26,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1950211695] [2024-11-27 19:57:26,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:26,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:57:26,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:57:26,280 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:57:26,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 19:57:26,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:26,542 INFO L256 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 19:57:26,546 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:57:26,823 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_17| (_ BitVec 32))) (and (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_17| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_17|)))) is different from true [2024-11-27 19:57:26,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:57:26,824 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:57:26,824 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:57:26,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950211695] [2024-11-27 19:57:26,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950211695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:26,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:57:26,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:57:26,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186124515] [2024-11-27 19:57:26,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:26,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:57:26,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:57:26,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:57:26,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-27 19:57:26,829 INFO L87 Difference]: Start difference. First operand 205 states and 262 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:57:30,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:57:31,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:31,392 INFO L93 Difference]: Finished difference Result 304 states and 393 transitions. [2024-11-27 19:57:31,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:57:31,401 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-27 19:57:31,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:31,403 INFO L225 Difference]: With dead ends: 304 [2024-11-27 19:57:31,403 INFO L226 Difference]: Without dead ends: 302 [2024-11-27 19:57:31,404 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-27 19:57:31,405 INFO L435 NwaCegarLoop]: 257 mSDtfsCounter, 116 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 392 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:31,405 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 498 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 392 Unchecked, 4.5s Time] [2024-11-27 19:57:31,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2024-11-27 19:57:31,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 277. [2024-11-27 19:57:31,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 266 states have (on average 1.2932330827067668) internal successors, (344), 268 states have internal predecessors, (344), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-27 19:57:31,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 358 transitions. [2024-11-27 19:57:31,428 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 358 transitions. Word has length 12 [2024-11-27 19:57:31,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:31,428 INFO L471 AbstractCegarLoop]: Abstraction has 277 states and 358 transitions. [2024-11-27 19:57:31,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:57:31,428 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 358 transitions. [2024-11-27 19:57:31,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-27 19:57:31,429 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:31,429 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:57:31,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 19:57:31,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:57:31,630 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-27 19:57:31,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:31,631 INFO L85 PathProgramCache]: Analyzing trace with hash -497087844, now seen corresponding path program 1 times [2024-11-27 19:57:31,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:57:31,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [158890666] [2024-11-27 19:57:31,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:31,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:57:31,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:57:31,634 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:57:31,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 19:57:31,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:31,848 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 19:57:31,850 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:57:32,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:57:32,035 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:57:32,035 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:57:32,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158890666] [2024-11-27 19:57:32,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158890666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:32,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:57:32,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 19:57:32,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576774704] [2024-11-27 19:57:32,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:32,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:57:32,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:57:32,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:57:32,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:57:32,037 INFO L87 Difference]: Start difference. First operand 277 states and 358 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-11-27 19:57:36,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:57:39,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:57:40,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:40,432 INFO L93 Difference]: Finished difference Result 368 states and 475 transitions. [2024-11-27 19:57:40,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:57:40,436 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 16 [2024-11-27 19:57:40,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:40,438 INFO L225 Difference]: With dead ends: 368 [2024-11-27 19:57:40,438 INFO L226 Difference]: Without dead ends: 366 [2024-11-27 19:57:40,438 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:57:40,439 INFO L435 NwaCegarLoop]: 250 mSDtfsCounter, 139 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:40,440 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 704 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 77 Invalid, 1 Unknown, 0 Unchecked, 8.4s Time] [2024-11-27 19:57:40,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2024-11-27 19:57:40,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 365. [2024-11-27 19:57:40,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 354 states have (on average 1.2937853107344632) internal successors, (458), 357 states have internal predecessors, (458), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-27 19:57:40,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 472 transitions. [2024-11-27 19:57:40,464 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 472 transitions. Word has length 16 [2024-11-27 19:57:40,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:40,464 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 472 transitions. [2024-11-27 19:57:40,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-11-27 19:57:40,464 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 472 transitions. [2024-11-27 19:57:40,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-27 19:57:40,466 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:40,466 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:57:40,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-27 19:57:40,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:57:40,667 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-27 19:57:40,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:40,668 INFO L85 PathProgramCache]: Analyzing trace with hash 575530527, now seen corresponding path program 1 times [2024-11-27 19:57:40,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:57:40,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1190362984] [2024-11-27 19:57:40,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:40,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:57:40,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:57:40,673 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:57:40,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 19:57:40,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:40,946 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 19:57:40,952 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:57:41,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:57:41,115 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:57:41,115 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:57:41,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190362984] [2024-11-27 19:57:41,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190362984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:41,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:57:41,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 19:57:41,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701926756] [2024-11-27 19:57:41,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:41,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:57:41,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:57:41,121 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:57:41,121 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:57:41,121 INFO L87 Difference]: Start difference. First operand 365 states and 472 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-11-27 19:57:41,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:41,353 INFO L93 Difference]: Finished difference Result 392 states and 484 transitions. [2024-11-27 19:57:41,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:57:41,354 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 51 [2024-11-27 19:57:41,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:41,356 INFO L225 Difference]: With dead ends: 392 [2024-11-27 19:57:41,357 INFO L226 Difference]: Without dead ends: 392 [2024-11-27 19:57:41,357 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:57:41,358 INFO L435 NwaCegarLoop]: 231 mSDtfsCounter, 23 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 672 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 [2024-11-27 19:57:41,358 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 672 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 19:57:41,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-11-27 19:57:41,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 389. [2024-11-27 19:57:41,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 378 states have (on average 1.2354497354497354) internal successors, (467), 381 states have internal predecessors, (467), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-27 19:57:41,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 481 transitions. [2024-11-27 19:57:41,399 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 481 transitions. Word has length 51 [2024-11-27 19:57:41,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:41,399 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 481 transitions. [2024-11-27 19:57:41,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-11-27 19:57:41,400 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 481 transitions. [2024-11-27 19:57:41,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-27 19:57:41,401 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:41,402 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:57:41,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 19:57:41,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:57:41,602 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-27 19:57:41,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:41,603 INFO L85 PathProgramCache]: Analyzing trace with hash 709544033, now seen corresponding path program 1 times [2024-11-27 19:57:41,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:57:41,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1092581026] [2024-11-27 19:57:41,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:41,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:57:41,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:57:41,606 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:57:41,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 19:57:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:41,904 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 19:57:41,907 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:57:41,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:57:41,954 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:57:41,954 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:57:41,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092581026] [2024-11-27 19:57:41,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1092581026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:41,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:57:41,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 19:57:41,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790735783] [2024-11-27 19:57:41,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:41,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:57:41,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:57:41,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:57:41,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:57:41,957 INFO L87 Difference]: Start difference. First operand 389 states and 481 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-11-27 19:57:42,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:42,121 INFO L93 Difference]: Finished difference Result 353 states and 424 transitions. [2024-11-27 19:57:42,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:57:42,122 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 51 [2024-11-27 19:57:42,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:42,123 INFO L225 Difference]: With dead ends: 353 [2024-11-27 19:57:42,123 INFO L226 Difference]: Without dead ends: 353 [2024-11-27 19:57:42,124 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:57:42,127 INFO L435 NwaCegarLoop]: 227 mSDtfsCounter, 27 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 669 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 [2024-11-27 19:57:42,127 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 669 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:57:42,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-11-27 19:57:42,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 353. [2024-11-27 19:57:42,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 342 states have (on average 1.1988304093567252) internal successors, (410), 345 states have internal predecessors, (410), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-27 19:57:42,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 424 transitions. [2024-11-27 19:57:42,153 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 424 transitions. Word has length 51 [2024-11-27 19:57:42,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:42,153 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 424 transitions. [2024-11-27 19:57:42,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-11-27 19:57:42,153 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 424 transitions. [2024-11-27 19:57:42,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-27 19:57:42,154 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:42,157 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:57:42,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-27 19:57:42,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:57:42,357 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-27 19:57:42,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:42,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1186760339, now seen corresponding path program 1 times [2024-11-27 19:57:42,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:57:42,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [390962322] [2024-11-27 19:57:42,358 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:42,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:57:42,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:57:42,360 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:57:42,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 19:57:42,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:42,616 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 19:57:42,620 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:57:42,644 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 19:57:42,645 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 19:57:42,646 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 19:57:42,654 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2024-11-27 19:57:42,775 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 19:57:42,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-11-27 19:57:42,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:57:42,922 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:57:42,922 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:57:42,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390962322] [2024-11-27 19:57:42,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390962322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:42,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:57:42,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 19:57:42,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128430314] [2024-11-27 19:57:42,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:42,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 19:57:42,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:57:42,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 19:57:42,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:57:42,924 INFO L87 Difference]: Start difference. First operand 353 states and 424 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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) [2024-11-27 19:57:43,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:43,795 INFO L93 Difference]: Finished difference Result 362 states and 443 transitions. [2024-11-27 19:57:43,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:57:43,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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 51 [2024-11-27 19:57:43,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:43,798 INFO L225 Difference]: With dead ends: 362 [2024-11-27 19:57:43,798 INFO L226 Difference]: Without dead ends: 359 [2024-11-27 19:57:43,799 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:57:43,800 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 112 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:43,800 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 930 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 19:57:43,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-27 19:57:43,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 310. [2024-11-27 19:57:43,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 300 states have (on average 1.22) internal successors, (366), 303 states have internal predecessors, (366), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-27 19:57:43,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 378 transitions. [2024-11-27 19:57:43,813 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 378 transitions. Word has length 51 [2024-11-27 19:57:43,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:43,813 INFO L471 AbstractCegarLoop]: Abstraction has 310 states and 378 transitions. [2024-11-27 19:57:43,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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) [2024-11-27 19:57:43,814 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 378 transitions. [2024-11-27 19:57:43,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-27 19:57:43,816 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:43,817 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:57:43,830 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 19:57:44,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:57:44,021 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-27 19:57:44,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:44,022 INFO L85 PathProgramCache]: Analyzing trace with hash -536099557, now seen corresponding path program 1 times [2024-11-27 19:57:44,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:57:44,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [313300396] [2024-11-27 19:57:44,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:44,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:57:44,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:57:44,029 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:57:44,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 19:57:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:44,643 INFO L256 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 19:57:44,647 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:57:44,678 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 19:57:44,678 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:57:44,678 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:57:44,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313300396] [2024-11-27 19:57:44,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313300396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:44,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:57:44,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:57:44,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074073846] [2024-11-27 19:57:44,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:44,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:57:44,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:57:44,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:57:44,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:57:44,682 INFO L87 Difference]: Start difference. First operand 310 states and 378 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 19:57:44,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:44,861 INFO L93 Difference]: Finished difference Result 350 states and 418 transitions. [2024-11-27 19:57:44,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:57:44,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 84 [2024-11-27 19:57:44,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:44,863 INFO L225 Difference]: With dead ends: 350 [2024-11-27 19:57:44,863 INFO L226 Difference]: Without dead ends: 350 [2024-11-27 19:57:44,864 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:57:44,865 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 8 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 437 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 [2024-11-27 19:57:44,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 437 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 19:57:44,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-27 19:57:44,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2024-11-27 19:57:44,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 340 states have (on average 1.1941176470588235) internal successors, (406), 343 states have internal predecessors, (406), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-27 19:57:44,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 418 transitions. [2024-11-27 19:57:44,878 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 418 transitions. Word has length 84 [2024-11-27 19:57:44,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:44,878 INFO L471 AbstractCegarLoop]: Abstraction has 350 states and 418 transitions. [2024-11-27 19:57:44,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 19:57:44,879 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 418 transitions. [2024-11-27 19:57:44,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-27 19:57:44,886 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:44,886 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:57:44,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-27 19:57:45,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:57:45,087 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-27 19:57:45,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:45,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1797293081, now seen corresponding path program 1 times [2024-11-27 19:57:45,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:57:45,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1985463611] [2024-11-27 19:57:45,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:45,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:57:45,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:57:45,090 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:57:45,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 19:57:45,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:45,680 INFO L256 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 19:57:45,684 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:57:46,103 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 19:57:46,104 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:57:46,104 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:57:46,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985463611] [2024-11-27 19:57:46,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985463611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:46,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:57:46,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 19:57:46,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948958101] [2024-11-27 19:57:46,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:46,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:57:46,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:57:46,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:57:46,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:57:46,106 INFO L87 Difference]: Start difference. First operand 350 states and 418 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 19:57:50,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:57:54,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 19:57:56,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:56,770 INFO L93 Difference]: Finished difference Result 438 states and 523 transitions. [2024-11-27 19:57:56,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:57:56,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 84 [2024-11-27 19:57:56,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:56,773 INFO L225 Difference]: With dead ends: 438 [2024-11-27 19:57:56,773 INFO L226 Difference]: Without dead ends: 438 [2024-11-27 19:57:56,773 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:57:56,774 INFO L435 NwaCegarLoop]: 253 mSDtfsCounter, 452 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:56,774 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 436 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 84 Invalid, 2 Unknown, 0 Unchecked, 10.6s Time] [2024-11-27 19:57:56,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2024-11-27 19:57:56,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 434. [2024-11-27 19:57:56,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 423 states have (on average 1.1914893617021276) internal successors, (504), 427 states have internal predecessors, (504), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-27 19:57:56,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 518 transitions. [2024-11-27 19:57:56,790 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 518 transitions. Word has length 84 [2024-11-27 19:57:56,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:56,791 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 518 transitions. [2024-11-27 19:57:56,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 19:57:56,791 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 518 transitions. [2024-11-27 19:57:56,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-27 19:57:56,792 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:56,793 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:57:56,802 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-27 19:57:56,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:57:56,994 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-27 19:57:56,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:56,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1347506179, now seen corresponding path program 1 times [2024-11-27 19:57:56,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:57:56,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [942233329] [2024-11-27 19:57:56,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:56,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:57:56,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:57:56,996 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:57:56,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 19:57:57,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:57,539 INFO L256 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 19:57:57,542 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:57:57,609 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 19:57:57,609 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:57:57,609 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:57:57,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942233329] [2024-11-27 19:57:57,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942233329] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:57,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:57:57,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 19:57:57,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684369107] [2024-11-27 19:57:57,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:57,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:57:57,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:57:57,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:57:57,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:57:57,616 INFO L87 Difference]: Start difference. First operand 434 states and 518 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 19:57:57,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:57,827 INFO L93 Difference]: Finished difference Result 398 states and 460 transitions. [2024-11-27 19:57:57,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:57:57,828 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 88 [2024-11-27 19:57:57,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:57,830 INFO L225 Difference]: With dead ends: 398 [2024-11-27 19:57:57,830 INFO L226 Difference]: Without dead ends: 398 [2024-11-27 19:57:57,831 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:57:57,832 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 32 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 622 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 [2024-11-27 19:57:57,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 622 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 19:57:57,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2024-11-27 19:57:57,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2024-11-27 19:57:57,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 387 states have (on average 1.152454780361757) internal successors, (446), 391 states have internal predecessors, (446), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-27 19:57:57,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 460 transitions. [2024-11-27 19:57:57,847 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 460 transitions. Word has length 88 [2024-11-27 19:57:57,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:57,848 INFO L471 AbstractCegarLoop]: Abstraction has 398 states and 460 transitions. [2024-11-27 19:57:57,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 19:57:57,848 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 460 transitions. [2024-11-27 19:57:57,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-27 19:57:57,849 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:57,849 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:57:57,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-27 19:57:58,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:57:58,050 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-27 19:57:58,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:58,051 INFO L85 PathProgramCache]: Analyzing trace with hash -2009183989, now seen corresponding path program 1 times [2024-11-27 19:57:58,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:57:58,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2060081903] [2024-11-27 19:57:58,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:58,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:57:58,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:57:58,053 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:57:58,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 19:57:58,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:58,541 INFO L256 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 19:57:58,545 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:57:58,592 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 19:57:58,592 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:57:58,593 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:57:58,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060081903] [2024-11-27 19:57:58,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060081903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:58,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:57:58,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 19:57:58,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862493761] [2024-11-27 19:57:58,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:58,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:57:58,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:57:58,595 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:57:58,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:57:58,595 INFO L87 Difference]: Start difference. First operand 398 states and 460 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 19:57:58,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:58,667 INFO L93 Difference]: Finished difference Result 401 states and 464 transitions. [2024-11-27 19:57:58,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:57:58,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 88 [2024-11-27 19:57:58,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:58,672 INFO L225 Difference]: With dead ends: 401 [2024-11-27 19:57:58,672 INFO L226 Difference]: Without dead ends: 401 [2024-11-27 19:57:58,672 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:57:58,673 INFO L435 NwaCegarLoop]: 231 mSDtfsCounter, 0 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:58,673 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 689 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:57:58,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-11-27 19:57:58,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2024-11-27 19:57:58,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 389 states have (on average 1.154241645244216) internal successors, (449), 394 states have internal predecessors, (449), 7 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-27 19:57:58,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 464 transitions. [2024-11-27 19:57:58,690 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 464 transitions. Word has length 88 [2024-11-27 19:57:58,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:58,690 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 464 transitions. [2024-11-27 19:57:58,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 19:57:58,691 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 464 transitions. [2024-11-27 19:57:58,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-27 19:57:58,692 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:58,692 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:57:58,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-27 19:57:58,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:57:58,893 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-27 19:57:58,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:58,893 INFO L85 PathProgramCache]: Analyzing trace with hash 973119017, now seen corresponding path program 1 times [2024-11-27 19:57:58,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:57:58,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [353931896] [2024-11-27 19:57:58,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:58,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:57:58,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:57:58,897 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:57:58,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-27 19:57:59,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:59,528 INFO L256 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 19:57:59,535 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:57:59,621 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 19:57:59,622 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:57:59,841 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 19:57:59,844 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:57:59,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353931896] [2024-11-27 19:57:59,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353931896] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:57:59,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 19:57:59,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-27 19:57:59,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372156306] [2024-11-27 19:57:59,845 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 19:57:59,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 19:57:59,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:57:59,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 19:57:59,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-27 19:57:59,846 INFO L87 Difference]: Start difference. First operand 401 states and 464 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 19:58:00,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:58:00,092 INFO L93 Difference]: Finished difference Result 412 states and 481 transitions. [2024-11-27 19:58:00,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 19:58:00,093 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 90 [2024-11-27 19:58:00,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:58:00,096 INFO L225 Difference]: With dead ends: 412 [2024-11-27 19:58:00,096 INFO L226 Difference]: Without dead ends: 412 [2024-11-27 19:58:00,096 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-27 19:58:00,097 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 5 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:58:00,098 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 689 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:58:00,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-11-27 19:58:00,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 410. [2024-11-27 19:58:00,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 397 states have (on average 1.1662468513853905) internal successors, (463), 402 states have internal predecessors, (463), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-27 19:58:00,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 479 transitions. [2024-11-27 19:58:00,114 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 479 transitions. Word has length 90 [2024-11-27 19:58:00,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:58:00,115 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 479 transitions. [2024-11-27 19:58:00,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 19:58:00,115 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 479 transitions. [2024-11-27 19:58:00,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-27 19:58:00,116 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:58:00,117 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:58:00,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-27 19:58:00,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:58:00,317 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-27 19:58:00,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:58:00,318 INFO L85 PathProgramCache]: Analyzing trace with hash 864014859, now seen corresponding path program 2 times [2024-11-27 19:58:00,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:58:00,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1060159553] [2024-11-27 19:58:00,319 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 19:58:00,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:58:00,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:58:00,321 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:58:00,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-27 19:58:00,902 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 19:58:00,902 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:58:00,913 INFO L256 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 19:58:00,917 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:58:01,735 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 19:58:01,735 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 19:58:01,736 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 19:58:01,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2024-11-27 19:58:01,860 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 19:58:01,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-11-27 19:58:01,921 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-27 19:58:01,921 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:58:01,921 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:58:01,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060159553] [2024-11-27 19:58:01,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1060159553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:58:01,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:58:01,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 19:58:01,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788885173] [2024-11-27 19:58:01,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:58:01,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 19:58:01,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:58:01,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 19:58:01,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:58:01,923 INFO L87 Difference]: Start difference. First operand 410 states and 479 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 19:58:02,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:58:02,326 INFO L93 Difference]: Finished difference Result 515 states and 604 transitions. [2024-11-27 19:58:02,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 19:58:02,327 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 94 [2024-11-27 19:58:02,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:58:02,329 INFO L225 Difference]: With dead ends: 515 [2024-11-27 19:58:02,329 INFO L226 Difference]: Without dead ends: 515 [2024-11-27 19:58:02,329 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:58:02,330 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 569 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 19:58:02,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 631 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 19:58:02,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2024-11-27 19:58:02,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 412. [2024-11-27 19:58:02,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 399 states have (on average 1.1654135338345866) internal successors, (465), 404 states have internal predecessors, (465), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-27 19:58:02,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 481 transitions. [2024-11-27 19:58:02,342 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 481 transitions. Word has length 94 [2024-11-27 19:58:02,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:58:02,342 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 481 transitions. [2024-11-27 19:58:02,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 19:58:02,342 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 481 transitions. [2024-11-27 19:58:02,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-27 19:58:02,344 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:58:02,344 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:58:02,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-27 19:58:02,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:58:02,545 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-27 19:58:02,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:58:02,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1043201422, now seen corresponding path program 1 times [2024-11-27 19:58:02,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:58:02,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1513256299] [2024-11-27 19:58:02,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:58:02,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:58:02,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:58:02,549 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:58:02,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-27 19:58:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:58:03,158 INFO L256 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 19:58:03,162 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:58:03,272 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-27 19:58:03,273 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:58:03,546 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-27 19:58:03,547 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:58:03,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513256299] [2024-11-27 19:58:03,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513256299] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:58:03,547 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 19:58:03,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-27 19:58:03,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576583670] [2024-11-27 19:58:03,548 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 19:58:03,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 19:58:03,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:58:03,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 19:58:03,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-27 19:58:03,550 INFO L87 Difference]: Start difference. First operand 412 states and 481 transitions. Second operand has 10 states, 10 states have (on average 13.8) internal successors, (138), 10 states have internal predecessors, (138), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 19:58:04,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:58:04,000 INFO L93 Difference]: Finished difference Result 420 states and 491 transitions. [2024-11-27 19:58:04,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 19:58:04,001 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.8) internal successors, (138), 10 states have internal predecessors, (138), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 137 [2024-11-27 19:58:04,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:58:04,003 INFO L225 Difference]: With dead ends: 420 [2024-11-27 19:58:04,003 INFO L226 Difference]: Without dead ends: 418 [2024-11-27 19:58:04,004 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2024-11-27 19:58:04,005 INFO L435 NwaCegarLoop]: 232 mSDtfsCounter, 5 mSDsluCounter, 917 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1149 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 19:58:04,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1149 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 19:58:04,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2024-11-27 19:58:04,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 416. [2024-11-27 19:58:04,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 403 states have (on average 1.1687344913151365) internal successors, (471), 408 states have internal predecessors, (471), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-27 19:58:04,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 486 transitions. [2024-11-27 19:58:04,018 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 486 transitions. Word has length 137 [2024-11-27 19:58:04,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:58:04,019 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 486 transitions. [2024-11-27 19:58:04,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.8) internal successors, (138), 10 states have internal predecessors, (138), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 19:58:04,019 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 486 transitions. [2024-11-27 19:58:04,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-27 19:58:04,021 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:58:04,021 INFO L218 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:58:04,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-27 19:58:04,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:58:04,223 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-27 19:58:04,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:58:04,223 INFO L85 PathProgramCache]: Analyzing trace with hash 876028274, now seen corresponding path program 2 times [2024-11-27 19:58:04,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:58:04,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1559922735] [2024-11-27 19:58:04,224 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 19:58:04,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:58:04,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:58:04,227 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:58:04,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-27 19:58:04,942 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 19:58:04,942 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:58:04,960 INFO L256 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 19:58:04,964 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:58:05,171 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-27 19:58:05,171 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:58:05,670 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-27 19:58:05,670 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 19:58:05,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559922735] [2024-11-27 19:58:05,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559922735] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:58:05,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 19:58:05,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-27 19:58:05,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134972762] [2024-11-27 19:58:05,671 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 19:58:05,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 19:58:05,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 19:58:05,672 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 19:58:05,673 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-27 19:58:05,673 INFO L87 Difference]: Start difference. First operand 416 states and 486 transitions. Second operand has 14 states, 14 states have (on average 9.857142857142858) internal successors, (138), 14 states have internal predecessors, (138), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 19:58:06,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:58:06,566 INFO L93 Difference]: Finished difference Result 428 states and 502 transitions. [2024-11-27 19:58:06,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 19:58:06,567 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.857142857142858) internal successors, (138), 14 states have internal predecessors, (138), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 141 [2024-11-27 19:58:06,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:58:06,569 INFO L225 Difference]: With dead ends: 428 [2024-11-27 19:58:06,571 INFO L226 Difference]: Without dead ends: 424 [2024-11-27 19:58:06,571 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-11-27 19:58:06,572 INFO L435 NwaCegarLoop]: 231 mSDtfsCounter, 7 mSDsluCounter, 1374 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 19:58:06,572 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1605 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 19:58:06,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2024-11-27 19:58:06,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 422. [2024-11-27 19:58:06,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 409 states have (on average 1.176039119804401) internal successors, (481), 414 states have internal predecessors, (481), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-27 19:58:06,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 496 transitions. [2024-11-27 19:58:06,589 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 496 transitions. Word has length 141 [2024-11-27 19:58:06,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:58:06,589 INFO L471 AbstractCegarLoop]: Abstraction has 422 states and 496 transitions. [2024-11-27 19:58:06,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.857142857142858) internal successors, (138), 14 states have internal predecessors, (138), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 19:58:06,590 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 496 transitions. [2024-11-27 19:58:06,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-27 19:58:06,592 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:58:06,592 INFO L218 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:58:06,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-27 19:58:06,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:58:06,794 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-27 19:58:06,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:58:06,794 INFO L85 PathProgramCache]: Analyzing trace with hash -2109870926, now seen corresponding path program 3 times [2024-11-27 19:58:06,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 19:58:06,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [792987865] [2024-11-27 19:58:06,795 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 19:58:06,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:58:06,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:58:06,798 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:58:06,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b77f0-3f0b-4b70-9211-470cb6c09fa7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process