./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 713ae5dee39d08db1e818ebc31454a222c136fde7aad4a26405d3060cfa0eeea --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:14:24,522 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:14:24,614 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-13 15:14:24,619 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:14:24,620 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:14:24,650 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:14:24,651 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:14:24,651 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:14:24,652 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:14:24,652 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:14:24,652 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:14:24,652 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:14:24,653 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:14:24,653 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:14:24,653 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:14:24,653 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:14:24,654 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:14:24,654 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:14:24,654 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:14:24,654 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:14:24,654 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:14:24,654 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:14:24,655 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 15:14:24,655 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 15:14:24,655 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:14:24,655 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:14:24,655 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 15:14:24,656 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:14:24,656 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:14:24,656 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:14:24,656 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:14:24,656 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:14:24,657 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:14:24,657 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:14:24,657 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:14:24,657 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:14:24,657 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:14:24,657 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:14:24,658 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:14:24,658 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:14:24,658 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:14:24,658 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:14:24,658 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:14:24,658 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:14:24,658 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:14:24,658 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_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-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 -> 713ae5dee39d08db1e818ebc31454a222c136fde7aad4a26405d3060cfa0eeea [2024-11-13 15:14:24,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:14:25,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:14:25,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:14:25,007 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:14:25,008 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:14:25,009 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-3.i Unable to find full path for "g++" [2024-11-13 15:14:27,004 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:14:27,533 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:14:27,534 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-3.i [2024-11-13 15:14:27,571 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/data/e22eecabd/f71ba2bdee2845d8b417d5ab28d90f21/FLAG6d701c8db [2024-11-13 15:14:27,603 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/data/e22eecabd/f71ba2bdee2845d8b417d5ab28d90f21 [2024-11-13 15:14:27,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:14:27,608 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:14:27,610 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:14:27,610 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:14:27,615 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:14:27,616 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:14:27" (1/1) ... [2024-11-13 15:14:27,618 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@500b0736 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:27, skipping insertion in model container [2024-11-13 15:14:27,618 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:14:27" (1/1) ... [2024-11-13 15:14:27,669 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:14:28,348 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:28,395 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:28,400 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:28,409 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:28,421 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:28,467 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:28,469 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:28,473 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:28,480 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:28,516 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:28,517 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:28,520 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:28,520 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:28,522 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:28,525 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:28,527 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:28,528 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:28,529 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:28,534 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:28,536 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:28,536 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:28,537 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:28,541 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:28,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:14:28,584 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-11-13 15:14:28,584 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@31afee8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:28, skipping insertion in model container [2024-11-13 15:14:28,584 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:14:28,585 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-13 15:14:28,587 INFO L158 Benchmark]: Toolchain (without parser) took 978.49ms. Allocated memory is still 142.6MB. Free memory was 115.9MB in the beginning and 92.3MB in the end (delta: 23.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 15:14:28,591 INFO L158 Benchmark]: CDTParser took 0.56ms. Allocated memory is still 142.6MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:14:28,592 INFO L158 Benchmark]: CACSL2BoogieTranslator took 975.14ms. Allocated memory is still 142.6MB. Free memory was 115.6MB in the beginning and 92.3MB in the end (delta: 23.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 15:14:28,593 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56ms. Allocated memory is still 142.6MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 975.14ms. Allocated memory is still 142.6MB. Free memory was 115.6MB in the beginning and 92.3MB in the end (delta: 23.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 760]: 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_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 713ae5dee39d08db1e818ebc31454a222c136fde7aad4a26405d3060cfa0eeea --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:14:31,472 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:14:31,619 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2024-11-13 15:14:31,629 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:14:31,629 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:14:31,663 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:14:31,664 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:14:31,665 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:14:31,665 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:14:31,665 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:14:31,667 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:14:31,667 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:14:31,667 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:14:31,667 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:14:31,667 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:14:31,668 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:14:31,668 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:14:31,668 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:14:31,668 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:14:31,668 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:14:31,668 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:14:31,668 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:14:31,668 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 15:14:31,668 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 15:14:31,669 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:14:31,669 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:14:31,669 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 15:14:31,669 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 15:14:31,669 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:14:31,669 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 15:14:31,669 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:14:31,669 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:14:31,669 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:14:31,669 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:14:31,670 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:14:31,670 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:14:31,670 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:14:31,670 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:14:31,670 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:14:31,670 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:14:31,670 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:14:31,670 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 15:14:31,671 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 15:14:31,671 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:14:31,671 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:14:31,671 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:14:31,671 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:14:31,671 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_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-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 -> 713ae5dee39d08db1e818ebc31454a222c136fde7aad4a26405d3060cfa0eeea [2024-11-13 15:14:32,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:14:32,056 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:14:32,061 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:14:32,063 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:14:32,063 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:14:32,065 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-3.i Unable to find full path for "g++" [2024-11-13 15:14:34,132 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:14:34,495 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:14:34,496 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-3.i [2024-11-13 15:14:34,524 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/data/853d5e0e8/7ba0db384ca74dfd895bfe2a03c368eb/FLAGedb96883f [2024-11-13 15:14:34,548 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/data/853d5e0e8/7ba0db384ca74dfd895bfe2a03c368eb [2024-11-13 15:14:34,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:14:34,553 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:14:34,555 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:14:34,556 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:14:34,560 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:14:34,562 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:14:34" (1/1) ... [2024-11-13 15:14:34,563 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1067a15c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:34, skipping insertion in model container [2024-11-13 15:14:34,565 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:14:34" (1/1) ... [2024-11-13 15:14:34,631 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:14:35,195 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,259 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,267 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,274 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,286 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,331 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,334 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,339 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,348 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,388 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,389 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,392 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,392 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,394 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,398 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,399 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,401 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,402 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,410 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,413 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,415 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,416 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,423 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,432 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:14:35,456 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-13 15:14:35,482 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:14:35,537 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,578 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,585 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,592 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,603 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,654 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,658 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,664 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,674 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,721 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,724 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,727 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,728 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,756 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,759 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,760 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,761 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,762 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,765 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,766 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,767 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,768 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,771 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:14:35,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:14:35,778 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:14:35,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:14:35,928 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:14:35,929 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:35 WrapperNode [2024-11-13 15:14:35,929 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:14:35,930 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:14:35,930 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:14:35,932 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:14:35,941 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:35" (1/1) ... [2024-11-13 15:14:35,990 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:35" (1/1) ... [2024-11-13 15:14:36,073 INFO L138 Inliner]: procedures = 180, calls = 474, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1673 [2024-11-13 15:14:36,073 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:14:36,074 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:14:36,074 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:14:36,074 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:14:36,097 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:35" (1/1) ... [2024-11-13 15:14:36,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:35" (1/1) ... [2024-11-13 15:14:36,122 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:35" (1/1) ... [2024-11-13 15:14:36,334 INFO L175 MemorySlicer]: Split 443 memory accesses to 3 slices as follows [417, 2, 24]. 94 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 2, 0]. The 99 writes are split as follows [98, 0, 1]. [2024-11-13 15:14:36,335 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:35" (1/1) ... [2024-11-13 15:14:36,335 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:35" (1/1) ... [2024-11-13 15:14:36,435 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:35" (1/1) ... [2024-11-13 15:14:36,464 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:35" (1/1) ... [2024-11-13 15:14:36,477 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:35" (1/1) ... [2024-11-13 15:14:36,488 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:35" (1/1) ... [2024-11-13 15:14:36,513 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:14:36,514 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:14:36,515 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:14:36,515 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:14:36,518 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:35" (1/1) ... [2024-11-13 15:14:36,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:14:36,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:14:36,569 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:14:36,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:14:36,615 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-13 15:14:36,616 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-13 15:14:36,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-13 15:14:36,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-13 15:14:36,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-13 15:14:36,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-13 15:14:36,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-13 15:14:36,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-13 15:14:36,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 15:14:36,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 15:14:36,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-13 15:14:36,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-13 15:14:36,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-13 15:14:36,618 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-13 15:14:36,618 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-13 15:14:36,619 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-13 15:14:36,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 15:14:36,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:14:36,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-13 15:14:36,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-13 15:14:36,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-13 15:14:36,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 15:14:36,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-13 15:14:36,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-13 15:14:36,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-13 15:14:36,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 15:14:36,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-13 15:14:36,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-13 15:14:36,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-13 15:14:36,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 15:14:36,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-13 15:14:36,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-13 15:14:36,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:14:36,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:14:36,990 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:14:36,992 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:14:54,697 INFO L? ?]: Removed 228 outVars from TransFormulas that were not future-live. [2024-11-13 15:14:54,697 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:14:54,730 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:14:54,730 INFO L316 CfgBuilder]: Removed 100 assume(true) statements. [2024-11-13 15:14:54,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:14:54 BoogieIcfgContainer [2024-11-13 15:14:54,731 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:14:54,734 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:14:54,734 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:14:54,739 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:14:54,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:14:34" (1/3) ... [2024-11-13 15:14:54,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@747e695e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:14:54, skipping insertion in model container [2024-11-13 15:14:54,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:35" (2/3) ... [2024-11-13 15:14:54,741 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@747e695e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:14:54, skipping insertion in model container [2024-11-13 15:14:54,742 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:14:54" (3/3) ... [2024-11-13 15:14:54,743 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test5-3.i [2024-11-13 15:14:54,760 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:14:54,761 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_OAT_test5-3.i that has 6 procedures, 330 locations, 1 initial locations, 58 loop locations, and 2 error locations. [2024-11-13 15:14:54,831 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:14:54,847 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;@4438d8a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:14:54,848 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 15:14:54,854 INFO L276 IsEmpty]: Start isEmpty. Operand has 322 states, 303 states have (on average 1.6732673267326732) internal successors, (507), 312 states have internal predecessors, (507), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-13 15:14:54,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-13 15:14:54,864 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:54,864 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:14:54,865 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:14:54,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:54,871 INFO L85 PathProgramCache]: Analyzing trace with hash -777838951, now seen corresponding path program 1 times [2024-11-13 15:14:54,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:14:54,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2113594300] [2024-11-13 15:14:54,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:54,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:14:54,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:14:54,889 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:14:54,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 15:14:55,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:55,216 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 15:14:55,222 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:14:55,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:14:55,239 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:14:55,240 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:14:55,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113594300] [2024-11-13 15:14:55,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2113594300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:55,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:55,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:14:55,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230311494] [2024-11-13 15:14:55,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:55,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 15:14:55,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:14:55,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 15:14:55,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:14:55,278 INFO L87 Difference]: Start difference. First operand has 322 states, 303 states have (on average 1.6732673267326732) internal successors, (507), 312 states have internal predecessors, (507), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2024-11-13 15:14:55,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:55,322 INFO L93 Difference]: Finished difference Result 320 states and 421 transitions. [2024-11-13 15:14:55,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 15:14:55,324 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 10 [2024-11-13 15:14:55,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:55,334 INFO L225 Difference]: With dead ends: 320 [2024-11-13 15:14:55,334 INFO L226 Difference]: Without dead ends: 318 [2024-11-13 15:14:55,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:14:55,343 INFO L432 NwaCegarLoop]: 421 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:55,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:14:55,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-11-13 15:14:55,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2024-11-13 15:14:55,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 301 states have (on average 1.3122923588039868) internal successors, (395), 308 states have internal predecessors, (395), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 15:14:55,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 419 transitions. [2024-11-13 15:14:55,435 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 419 transitions. Word has length 10 [2024-11-13 15:14:55,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:55,436 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 419 transitions. [2024-11-13 15:14:55,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2024-11-13 15:14:55,437 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 419 transitions. [2024-11-13 15:14:55,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 15:14:55,437 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:55,438 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:14:55,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 15:14:55,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:14:55,639 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:14:55,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:55,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1230284055, now seen corresponding path program 1 times [2024-11-13 15:14:55,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:14:55,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1218897474] [2024-11-13 15:14:55,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:55,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:14:55,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:14:55,642 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:14:55,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 15:14:55,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:55,894 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:14:55,897 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:14:56,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:14:56,005 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:14:56,005 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:14:56,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218897474] [2024-11-13 15:14:56,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218897474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:56,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:56,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:14:56,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492759891] [2024-11-13 15:14:56,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:56,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:14:56,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:14:56,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:14:56,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:14:56,012 INFO L87 Difference]: Start difference. First operand 318 states and 419 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:56,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:56,878 INFO L93 Difference]: Finished difference Result 487 states and 649 transitions. [2024-11-13 15:14:56,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:14:56,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-13 15:14:56,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:56,886 INFO L225 Difference]: With dead ends: 487 [2024-11-13 15:14:56,886 INFO L226 Difference]: Without dead ends: 487 [2024-11-13 15:14:56,886 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:14:56,887 INFO L432 NwaCegarLoop]: 407 mSDtfsCounter, 212 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:56,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 805 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 15:14:56,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2024-11-13 15:14:56,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 433. [2024-11-13 15:14:56,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 411 states have (on average 1.3236009732360097) internal successors, (544), 423 states have internal predecessors, (544), 18 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-13 15:14:56,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 578 transitions. [2024-11-13 15:14:56,913 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 578 transitions. Word has length 11 [2024-11-13 15:14:56,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:56,913 INFO L471 AbstractCegarLoop]: Abstraction has 433 states and 578 transitions. [2024-11-13 15:14:56,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:56,913 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 578 transitions. [2024-11-13 15:14:56,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 15:14:56,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:56,914 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:14:56,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-13 15:14:57,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:14:57,115 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:14:57,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:57,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1232131097, now seen corresponding path program 1 times [2024-11-13 15:14:57,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:14:57,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1085822046] [2024-11-13 15:14:57,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:57,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:14:57,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:14:57,118 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:14:57,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 15:14:57,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:57,335 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:14:57,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:14:57,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:14:57,353 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:14:57,353 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:14:57,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1085822046] [2024-11-13 15:14:57,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1085822046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:57,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:57,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:14:57,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143671268] [2024-11-13 15:14:57,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:57,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:14:57,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:14:57,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:14:57,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:14:57,355 INFO L87 Difference]: Start difference. First operand 433 states and 578 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:57,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:57,598 INFO L93 Difference]: Finished difference Result 563 states and 745 transitions. [2024-11-13 15:14:57,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:14:57,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-13 15:14:57,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:57,606 INFO L225 Difference]: With dead ends: 563 [2024-11-13 15:14:57,606 INFO L226 Difference]: Without dead ends: 563 [2024-11-13 15:14:57,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:14:57,608 INFO L432 NwaCegarLoop]: 471 mSDtfsCounter, 301 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:57,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 881 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 15:14:57,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2024-11-13 15:14:57,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 359. [2024-11-13 15:14:57,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 342 states have (on average 1.3099415204678362) internal successors, (448), 349 states have internal predecessors, (448), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 15:14:57,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 472 transitions. [2024-11-13 15:14:57,633 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 472 transitions. Word has length 11 [2024-11-13 15:14:57,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:57,634 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 472 transitions. [2024-11-13 15:14:57,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:57,634 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 472 transitions. [2024-11-13 15:14:57,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-13 15:14:57,641 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:57,641 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:14:57,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 15:14:57,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:14:57,846 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:14:57,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:57,846 INFO L85 PathProgramCache]: Analyzing trace with hash 622213426, now seen corresponding path program 1 times [2024-11-13 15:14:57,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:14:57,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [271100373] [2024-11-13 15:14:57,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:57,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:14:57,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:14:57,852 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:14:57,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 15:14:58,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:58,815 INFO L255 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:14:58,823 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:15:00,253 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:15:00,253 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:15:00,253 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:15:00,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271100373] [2024-11-13 15:15:00,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [271100373] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:15:00,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:15:00,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:15:00,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56723609] [2024-11-13 15:15:00,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:15:00,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:15:00,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:15:00,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:15:00,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:15:00,258 INFO L87 Difference]: Start difference. First operand 359 states and 472 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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) [2024-11-13 15:15:00,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:15:00,927 INFO L93 Difference]: Finished difference Result 554 states and 734 transitions. [2024-11-13 15:15:00,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:15:00,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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 167 [2024-11-13 15:15:00,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:15:00,941 INFO L225 Difference]: With dead ends: 554 [2024-11-13 15:15:00,941 INFO L226 Difference]: Without dead ends: 554 [2024-11-13 15:15:00,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:15:00,943 INFO L432 NwaCegarLoop]: 470 mSDtfsCounter, 203 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:15:00,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 875 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 15:15:00,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-11-13 15:15:00,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 497. [2024-11-13 15:15:00,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 472 states have (on average 1.3114406779661016) internal successors, (619), 484 states have internal predecessors, (619), 21 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 11 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-13 15:15:00,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 659 transitions. [2024-11-13 15:15:00,989 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 659 transitions. Word has length 167 [2024-11-13 15:15:00,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:15:00,990 INFO L471 AbstractCegarLoop]: Abstraction has 497 states and 659 transitions. [2024-11-13 15:15:00,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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) [2024-11-13 15:15:00,991 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 659 transitions. [2024-11-13 15:15:00,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-13 15:15:00,998 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:15:00,998 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:15:01,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 15:15:01,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:01,203 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:15:01,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:01,203 INFO L85 PathProgramCache]: Analyzing trace with hash 2115591354, now seen corresponding path program 1 times [2024-11-13 15:15:01,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:15:01,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [589501169] [2024-11-13 15:15:01,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:01,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:01,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:15:01,208 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:15:01,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 15:15:02,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:02,208 INFO L255 TraceCheckSpWp]: Trace formula consists of 874 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:15:02,215 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:15:02,251 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 15:15:02,252 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:15:02,252 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:15:02,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589501169] [2024-11-13 15:15:02,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [589501169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:15:02,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:15:02,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:15:02,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294316352] [2024-11-13 15:15:02,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:15:02,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:15:02,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:15:02,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:15:02,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:15:02,255 INFO L87 Difference]: Start difference. First operand 497 states and 659 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 15:15:02,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:15:02,445 INFO L93 Difference]: Finished difference Result 537 states and 699 transitions. [2024-11-13 15:15:02,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:15:02,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 182 [2024-11-13 15:15:02,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:15:02,449 INFO L225 Difference]: With dead ends: 537 [2024-11-13 15:15:02,449 INFO L226 Difference]: Without dead ends: 537 [2024-11-13 15:15:02,449 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:15:02,450 INFO L432 NwaCegarLoop]: 399 mSDtfsCounter, 9 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 783 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 [2024-11-13 15:15:02,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 783 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 15:15:02,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2024-11-13 15:15:02,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2024-11-13 15:15:02,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 512 states have (on average 1.287109375) internal successors, (659), 524 states have internal predecessors, (659), 21 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 11 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-13 15:15:02,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 699 transitions. [2024-11-13 15:15:02,473 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 699 transitions. Word has length 182 [2024-11-13 15:15:02,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:15:02,473 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 699 transitions. [2024-11-13 15:15:02,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 15:15:02,474 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 699 transitions. [2024-11-13 15:15:02,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-13 15:15:02,483 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:15:02,484 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:15:02,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 15:15:02,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:02,684 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:15:02,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:02,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1724355774, now seen corresponding path program 1 times [2024-11-13 15:15:02,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:15:02,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [640857025] [2024-11-13 15:15:02,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:02,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:02,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:15:02,687 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:15:02,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 15:15:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:03,672 INFO L255 TraceCheckSpWp]: Trace formula consists of 878 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:15:03,678 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:15:03,711 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 15:15:03,711 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:15:03,711 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:15:03,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640857025] [2024-11-13 15:15:03,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640857025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:15:03,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:15:03,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:15:03,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273214540] [2024-11-13 15:15:03,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:15:03,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:15:03,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:15:03,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:15:03,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:15:03,739 INFO L87 Difference]: Start difference. First operand 537 states and 699 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 15:15:03,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:15:03,919 INFO L93 Difference]: Finished difference Result 577 states and 739 transitions. [2024-11-13 15:15:03,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:15:03,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 182 [2024-11-13 15:15:03,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:15:03,925 INFO L225 Difference]: With dead ends: 577 [2024-11-13 15:15:03,925 INFO L226 Difference]: Without dead ends: 577 [2024-11-13 15:15:03,925 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:15:03,928 INFO L432 NwaCegarLoop]: 399 mSDtfsCounter, 8 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 783 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 [2024-11-13 15:15:03,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 783 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 15:15:03,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-11-13 15:15:03,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 577. [2024-11-13 15:15:03,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 552 states have (on average 1.266304347826087) internal successors, (699), 564 states have internal predecessors, (699), 21 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 11 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-13 15:15:03,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 739 transitions. [2024-11-13 15:15:03,960 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 739 transitions. Word has length 182 [2024-11-13 15:15:03,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:15:03,960 INFO L471 AbstractCegarLoop]: Abstraction has 577 states and 739 transitions. [2024-11-13 15:15:03,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 15:15:03,960 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 739 transitions. [2024-11-13 15:15:03,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-13 15:15:03,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:15:03,967 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:15:04,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 15:15:04,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:04,168 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:15:04,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:04,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1513880320, now seen corresponding path program 1 times [2024-11-13 15:15:04,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:15:04,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1929163888] [2024-11-13 15:15:04,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:04,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:04,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:15:04,171 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:15:04,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 15:15:05,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:05,142 INFO L255 TraceCheckSpWp]: Trace formula consists of 880 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:15:05,147 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:15:05,177 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-13 15:15:05,177 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:15:05,177 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:15:05,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929163888] [2024-11-13 15:15:05,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1929163888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:15:05,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:15:05,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:15:05,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637864083] [2024-11-13 15:15:05,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:15:05,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:15:05,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:15:05,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:15:05,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:15:05,180 INFO L87 Difference]: Start difference. First operand 577 states and 739 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 15:15:05,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:15:05,354 INFO L93 Difference]: Finished difference Result 617 states and 779 transitions. [2024-11-13 15:15:05,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:15:05,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 182 [2024-11-13 15:15:05,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:15:05,359 INFO L225 Difference]: With dead ends: 617 [2024-11-13 15:15:05,359 INFO L226 Difference]: Without dead ends: 617 [2024-11-13 15:15:05,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:15:05,360 INFO L432 NwaCegarLoop]: 399 mSDtfsCounter, 8 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 783 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 [2024-11-13 15:15:05,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 783 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 15:15:05,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2024-11-13 15:15:05,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 617. [2024-11-13 15:15:05,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 617 states, 592 states have (on average 1.2483108108108107) internal successors, (739), 604 states have internal predecessors, (739), 21 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 11 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-13 15:15:05,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 779 transitions. [2024-11-13 15:15:05,385 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 779 transitions. Word has length 182 [2024-11-13 15:15:05,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:15:05,386 INFO L471 AbstractCegarLoop]: Abstraction has 617 states and 779 transitions. [2024-11-13 15:15:05,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 15:15:05,386 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 779 transitions. [2024-11-13 15:15:05,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-13 15:15:05,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:15:05,389 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:15:05,425 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-13 15:15:05,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:05,589 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:15:05,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:05,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1575919934, now seen corresponding path program 1 times [2024-11-13 15:15:05,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:15:05,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2000577233] [2024-11-13 15:15:05,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:05,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:05,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:15:05,593 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:15:05,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 15:15:06,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:06,530 INFO L255 TraceCheckSpWp]: Trace formula consists of 882 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:15:06,534 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:15:07,380 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 15:15:07,381 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:15:07,381 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:15:07,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000577233] [2024-11-13 15:15:07,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2000577233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:15:07,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:15:07,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:15:07,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227849453] [2024-11-13 15:15:07,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:15:07,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:15:07,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:15:07,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:15:07,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:15:07,384 INFO L87 Difference]: Start difference. First operand 617 states and 779 transitions. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 15:15:11,892 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 [] [2024-11-13 15:15:15,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 15:15:20,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 15:15:24,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 15:15:26,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 15:15:30,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 15:15:34,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 15:15:37,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 15:15:37,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:15:37,804 INFO L93 Difference]: Finished difference Result 542 states and 678 transitions. [2024-11-13 15:15:37,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:15:37,805 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 182 [2024-11-13 15:15:37,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:15:37,808 INFO L225 Difference]: With dead ends: 542 [2024-11-13 15:15:37,808 INFO L226 Difference]: Without dead ends: 542 [2024-11-13 15:15:37,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:15:37,809 INFO L432 NwaCegarLoop]: 488 mSDtfsCounter, 531 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 16 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:15:37,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 743 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 124 Invalid, 5 Unknown, 0 Unchecked, 30.4s Time] [2024-11-13 15:15:37,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2024-11-13 15:15:37,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 542. [2024-11-13 15:15:37,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 522 states have (on average 1.2413793103448276) internal successors, (648), 529 states have internal predecessors, (648), 16 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 15:15:37,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 678 transitions. [2024-11-13 15:15:37,828 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 678 transitions. Word has length 182 [2024-11-13 15:15:37,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:15:37,829 INFO L471 AbstractCegarLoop]: Abstraction has 542 states and 678 transitions. [2024-11-13 15:15:37,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 15:15:37,830 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 678 transitions. [2024-11-13 15:15:37,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-13 15:15:37,833 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:15:37,833 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:15:37,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-13 15:15:38,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:38,034 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:15:38,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:38,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1314917718, now seen corresponding path program 1 times [2024-11-13 15:15:38,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:15:38,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1896542625] [2024-11-13 15:15:38,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:38,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:38,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:15:38,037 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:15:38,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 15:15:38,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:38,963 INFO L255 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:15:38,967 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:15:39,005 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 15:15:39,006 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:15:39,006 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:15:39,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896542625] [2024-11-13 15:15:39,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896542625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:15:39,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:15:39,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:15:39,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124256273] [2024-11-13 15:15:39,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:15:39,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:15:39,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:15:39,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:15:39,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:15:39,010 INFO L87 Difference]: Start difference. First operand 542 states and 678 transitions. Second operand has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 15:15:39,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:15:39,174 INFO L93 Difference]: Finished difference Result 508 states and 622 transitions. [2024-11-13 15:15:39,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:15:39,175 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 190 [2024-11-13 15:15:39,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:15:39,178 INFO L225 Difference]: With dead ends: 508 [2024-11-13 15:15:39,178 INFO L226 Difference]: Without dead ends: 508 [2024-11-13 15:15:39,178 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:15:39,185 INFO L432 NwaCegarLoop]: 385 mSDtfsCounter, 32 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 1141 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:15:39,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 1141 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:15:39,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2024-11-13 15:15:39,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 508. [2024-11-13 15:15:39,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 488 states have (on average 1.2131147540983607) internal successors, (592), 495 states have internal predecessors, (592), 16 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 15:15:39,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 622 transitions. [2024-11-13 15:15:39,205 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 622 transitions. Word has length 190 [2024-11-13 15:15:39,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:15:39,205 INFO L471 AbstractCegarLoop]: Abstraction has 508 states and 622 transitions. [2024-11-13 15:15:39,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 15:15:39,206 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 622 transitions. [2024-11-13 15:15:39,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-13 15:15:39,208 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:15:39,209 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:15:39,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-13 15:15:39,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:39,410 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:15:39,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:39,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1995100508, now seen corresponding path program 1 times [2024-11-13 15:15:39,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:15:39,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [675891327] [2024-11-13 15:15:39,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:39,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:39,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:15:39,424 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:15:39,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 15:15:40,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:40,427 INFO L255 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:15:40,432 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:15:40,493 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 15:15:40,493 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:15:40,493 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:15:40,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675891327] [2024-11-13 15:15:40,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [675891327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:15:40,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:15:40,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:15:40,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380425081] [2024-11-13 15:15:40,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:15:40,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:15:40,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:15:40,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:15:40,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:15:40,496 INFO L87 Difference]: Start difference. First operand 508 states and 622 transitions. Second operand has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 15:15:40,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:15:40,673 INFO L93 Difference]: Finished difference Result 474 states and 566 transitions. [2024-11-13 15:15:40,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:15:40,674 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 190 [2024-11-13 15:15:40,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:15:40,676 INFO L225 Difference]: With dead ends: 474 [2024-11-13 15:15:40,676 INFO L226 Difference]: Without dead ends: 474 [2024-11-13 15:15:40,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:15:40,677 INFO L432 NwaCegarLoop]: 374 mSDtfsCounter, 32 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:15:40,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 1108 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:15:40,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2024-11-13 15:15:40,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 474. [2024-11-13 15:15:40,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 454 states have (on average 1.1806167400881058) internal successors, (536), 461 states have internal predecessors, (536), 16 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 15:15:40,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 566 transitions. [2024-11-13 15:15:40,695 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 566 transitions. Word has length 190 [2024-11-13 15:15:40,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:15:40,696 INFO L471 AbstractCegarLoop]: Abstraction has 474 states and 566 transitions. [2024-11-13 15:15:40,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 15:15:40,696 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 566 transitions. [2024-11-13 15:15:40,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-13 15:15:40,700 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:15:40,700 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:15:40,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-13 15:15:40,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:40,901 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:15:40,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:40,902 INFO L85 PathProgramCache]: Analyzing trace with hash -736869234, now seen corresponding path program 1 times [2024-11-13 15:15:40,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:15:40,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [576982037] [2024-11-13 15:15:40,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:40,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:40,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:15:40,904 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:15:40,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 15:15:41,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:41,857 INFO L255 TraceCheckSpWp]: Trace formula consists of 870 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:15:41,861 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:15:41,919 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-13 15:15:41,919 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:15:41,919 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:15:41,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576982037] [2024-11-13 15:15:41,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576982037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:15:41,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:15:41,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:15:41,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365626408] [2024-11-13 15:15:41,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:15:41,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:15:41,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:15:41,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:15:41,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:15:41,922 INFO L87 Difference]: Start difference. First operand 474 states and 566 transitions. Second operand has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 15:15:42,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:15:42,118 INFO L93 Difference]: Finished difference Result 457 states and 538 transitions. [2024-11-13 15:15:42,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:15:42,119 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 190 [2024-11-13 15:15:42,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:15:42,121 INFO L225 Difference]: With dead ends: 457 [2024-11-13 15:15:42,121 INFO L226 Difference]: Without dead ends: 457 [2024-11-13 15:15:42,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:15:42,122 INFO L432 NwaCegarLoop]: 363 mSDtfsCounter, 32 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 1075 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 [2024-11-13 15:15:42,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 1075 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 15:15:42,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2024-11-13 15:15:42,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 457. [2024-11-13 15:15:42,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 437 states have (on average 1.162471395881007) internal successors, (508), 444 states have internal predecessors, (508), 16 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 15:15:42,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 538 transitions. [2024-11-13 15:15:42,139 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 538 transitions. Word has length 190 [2024-11-13 15:15:42,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:15:42,139 INFO L471 AbstractCegarLoop]: Abstraction has 457 states and 538 transitions. [2024-11-13 15:15:42,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-13 15:15:42,140 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 538 transitions. [2024-11-13 15:15:42,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-13 15:15:42,142 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:15:42,142 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:15:42,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-13 15:15:42,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:42,343 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:15:42,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:42,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1287066944, now seen corresponding path program 1 times [2024-11-13 15:15:42,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:15:42,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [102746074] [2024-11-13 15:15:42,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:42,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:42,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:15:42,349 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:15:42,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-13 15:15:43,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:43,399 INFO L255 TraceCheckSpWp]: Trace formula consists of 856 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:15:43,404 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:15:43,448 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 15:15:43,448 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:15:43,448 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:15:43,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102746074] [2024-11-13 15:15:43,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102746074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:15:43,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:15:43,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:15:43,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607845923] [2024-11-13 15:15:43,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:15:43,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:15:43,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:15:43,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:15:43,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:15:43,450 INFO L87 Difference]: Start difference. First operand 457 states and 538 transitions. Second operand has 4 states, 4 states have (on average 44.5) internal successors, (178), 4 states have internal predecessors, (178), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 15:15:43,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:15:43,539 INFO L93 Difference]: Finished difference Result 460 states and 544 transitions. [2024-11-13 15:15:43,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:15:43,540 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.5) internal successors, (178), 4 states have internal predecessors, (178), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 190 [2024-11-13 15:15:43,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:15:43,542 INFO L225 Difference]: With dead ends: 460 [2024-11-13 15:15:43,543 INFO L226 Difference]: Without dead ends: 460 [2024-11-13 15:15:43,543 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:15:43,543 INFO L432 NwaCegarLoop]: 381 mSDtfsCounter, 0 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1136 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:15:43,544 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1136 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:15:43,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2024-11-13 15:15:43,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 460. [2024-11-13 15:15:43,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 439 states have (on average 1.1640091116173121) internal successors, (511), 447 states have internal predecessors, (511), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (17), 10 states have call predecessors, (17), 14 states have call successors, (17) [2024-11-13 15:15:43,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 544 transitions. [2024-11-13 15:15:43,557 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 544 transitions. Word has length 190 [2024-11-13 15:15:43,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:15:43,557 INFO L471 AbstractCegarLoop]: Abstraction has 460 states and 544 transitions. [2024-11-13 15:15:43,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.5) internal successors, (178), 4 states have internal predecessors, (178), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 15:15:43,558 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 544 transitions. [2024-11-13 15:15:43,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-13 15:15:43,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:15:43,560 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:15:43,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-13 15:15:43,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:43,761 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:15:43,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:43,762 INFO L85 PathProgramCache]: Analyzing trace with hash -146699516, now seen corresponding path program 1 times [2024-11-13 15:15:43,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:15:43,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [267932062] [2024-11-13 15:15:43,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:43,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:43,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:15:43,766 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:15:43,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-13 15:15:44,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:44,744 INFO L255 TraceCheckSpWp]: Trace formula consists of 900 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:15:44,747 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:15:45,383 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-13 15:15:45,383 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:15:46,183 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-13 15:15:46,184 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:15:46,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267932062] [2024-11-13 15:15:46,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267932062] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:15:46,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:15:46,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2024-11-13 15:15:46,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113764033] [2024-11-13 15:15:46,185 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 15:15:46,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:15:46,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:15:46,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:15:46,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:15:46,187 INFO L87 Difference]: Start difference. First operand 460 states and 544 transitions. Second operand has 6 states, 6 states have (on average 48.5) internal successors, (291), 6 states have internal predecessors, (291), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 15:15:47,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:15:47,170 INFO L93 Difference]: Finished difference Result 992 states and 1182 transitions. [2024-11-13 15:15:47,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:15:47,172 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 48.5) internal successors, (291), 6 states have internal predecessors, (291), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 194 [2024-11-13 15:15:47,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:15:47,177 INFO L225 Difference]: With dead ends: 992 [2024-11-13 15:15:47,177 INFO L226 Difference]: Without dead ends: 992 [2024-11-13 15:15:47,177 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 382 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:15:47,178 INFO L432 NwaCegarLoop]: 567 mSDtfsCounter, 953 mSDsluCounter, 1219 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 973 SdHoareTripleChecker+Valid, 1786 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:15:47,178 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [973 Valid, 1786 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 15:15:47,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2024-11-13 15:15:47,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 916. [2024-11-13 15:15:47,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 881 states have (on average 1.1600454029511917) internal successors, (1022), 894 states have internal predecessors, (1022), 30 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (36), 20 states have call predecessors, (36), 28 states have call successors, (36) [2024-11-13 15:15:47,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1088 transitions. [2024-11-13 15:15:47,207 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1088 transitions. Word has length 194 [2024-11-13 15:15:47,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:15:47,208 INFO L471 AbstractCegarLoop]: Abstraction has 916 states and 1088 transitions. [2024-11-13 15:15:47,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 48.5) internal successors, (291), 6 states have internal predecessors, (291), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 15:15:47,208 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1088 transitions. [2024-11-13 15:15:47,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2024-11-13 15:15:47,212 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:15:47,213 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:15:47,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-13 15:15:47,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:47,413 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:15:47,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:47,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1077209000, now seen corresponding path program 1 times [2024-11-13 15:15:47,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:15:47,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1307995824] [2024-11-13 15:15:47,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:47,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:47,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:15:47,418 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:15:47,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-13 15:15:49,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:49,396 INFO L255 TraceCheckSpWp]: Trace formula consists of 2319 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:15:49,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:15:49,484 INFO L134 CoverageAnalysis]: Checked inductivity of 674 backedges. 146 proven. 1 refuted. 0 times theorem prover too weak. 527 trivial. 0 not checked. [2024-11-13 15:15:49,484 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:15:49,717 INFO L134 CoverageAnalysis]: Checked inductivity of 674 backedges. 118 proven. 13 refuted. 0 times theorem prover too weak. 543 trivial. 0 not checked. [2024-11-13 15:15:49,717 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:15:49,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307995824] [2024-11-13 15:15:49,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1307995824] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:15:49,718 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:15:49,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-13 15:15:49,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949940396] [2024-11-13 15:15:49,718 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 15:15:49,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 15:15:49,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:15:49,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 15:15:49,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:15:49,721 INFO L87 Difference]: Start difference. First operand 916 states and 1088 transitions. Second operand has 8 states, 8 states have (on average 28.375) internal successors, (227), 8 states have internal predecessors, (227), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 15:15:50,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:15:50,070 INFO L93 Difference]: Finished difference Result 927 states and 1119 transitions. [2024-11-13 15:15:50,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 15:15:50,073 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 28.375) internal successors, (227), 8 states have internal predecessors, (227), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 512 [2024-11-13 15:15:50,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:15:50,079 INFO L225 Difference]: With dead ends: 927 [2024-11-13 15:15:50,079 INFO L226 Difference]: Without dead ends: 927 [2024-11-13 15:15:50,080 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1025 GetRequests, 1016 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:15:50,080 INFO L432 NwaCegarLoop]: 379 mSDtfsCounter, 4 mSDsluCounter, 1871 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2250 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:15:50,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2250 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 15:15:50,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2024-11-13 15:15:50,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 925. [2024-11-13 15:15:50,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 889 states have (on average 1.1653543307086613) internal successors, (1036), 902 states have internal predecessors, (1036), 30 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (44), 20 states have call predecessors, (44), 28 states have call successors, (44) [2024-11-13 15:15:50,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1110 transitions. [2024-11-13 15:15:50,118 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1110 transitions. Word has length 512 [2024-11-13 15:15:50,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:15:50,119 INFO L471 AbstractCegarLoop]: Abstraction has 925 states and 1110 transitions. [2024-11-13 15:15:50,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 28.375) internal successors, (227), 8 states have internal predecessors, (227), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 15:15:50,119 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1110 transitions. [2024-11-13 15:15:50,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2024-11-13 15:15:50,125 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:15:50,125 INFO L215 NwaCegarLoop]: trace histogram [12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:15:50,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-13 15:15:50,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:50,326 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:15:50,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:50,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1092084820, now seen corresponding path program 2 times [2024-11-13 15:15:50,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:15:50,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1015372035] [2024-11-13 15:15:50,330 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 15:15:50,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:50,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:15:50,333 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:15:50,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-13 15:15:52,616 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 15:15:52,616 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:15:52,702 INFO L255 TraceCheckSpWp]: Trace formula consists of 2407 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 15:15:52,712 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:15:52,839 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 160 proven. 3 refuted. 0 times theorem prover too weak. 603 trivial. 0 not checked. [2024-11-13 15:15:52,839 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:15:53,113 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 112 proven. 48 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2024-11-13 15:15:53,113 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:15:53,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015372035] [2024-11-13 15:15:53,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015372035] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:15:53,113 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:15:53,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-13 15:15:53,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769408571] [2024-11-13 15:15:53,114 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 15:15:53,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 15:15:53,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:15:53,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 15:15:53,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-13 15:15:53,116 INFO L87 Difference]: Start difference. First operand 925 states and 1110 transitions. Second operand has 10 states, 10 states have (on average 22.9) internal successors, (229), 10 states have internal predecessors, (229), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 15:15:53,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:15:53,709 INFO L93 Difference]: Finished difference Result 933 states and 1120 transitions. [2024-11-13 15:15:53,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:15:53,710 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 22.9) internal successors, (229), 10 states have internal predecessors, (229), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 520 [2024-11-13 15:15:53,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:15:53,715 INFO L225 Difference]: With dead ends: 933 [2024-11-13 15:15:53,715 INFO L226 Difference]: Without dead ends: 931 [2024-11-13 15:15:53,717 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1043 GetRequests, 1030 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2024-11-13 15:15:53,717 INFO L432 NwaCegarLoop]: 381 mSDtfsCounter, 6 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1514 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:15:53,718 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1514 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 15:15:53,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2024-11-13 15:15:53,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 929. [2024-11-13 15:15:53,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 929 states, 893 states have (on average 1.1668533034714446) internal successors, (1042), 906 states have internal predecessors, (1042), 30 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (36), 20 states have call predecessors, (36), 28 states have call successors, (36) [2024-11-13 15:15:53,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1108 transitions. [2024-11-13 15:15:53,755 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1108 transitions. Word has length 520 [2024-11-13 15:15:53,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:15:53,756 INFO L471 AbstractCegarLoop]: Abstraction has 929 states and 1108 transitions. [2024-11-13 15:15:53,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 22.9) internal successors, (229), 10 states have internal predecessors, (229), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 15:15:53,756 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1108 transitions. [2024-11-13 15:15:53,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2024-11-13 15:15:53,764 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:15:53,764 INFO L215 NwaCegarLoop]: trace histogram [20, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:15:53,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-13 15:15:53,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:53,965 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:15:53,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:53,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1361478956, now seen corresponding path program 3 times [2024-11-13 15:15:53,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:15:53,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [671141632] [2024-11-13 15:15:53,969 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 15:15:53,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:15:53,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:15:53,971 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:15:53,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d8f5c5-6c44-444a-a834-92875792a80b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process