./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9e43379b3f2624d77eec1084820c7c07499f5ec4432514ab066d4f5cf96eeebc --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:35:56,644 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:35:56,751 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-28 03:35:56,756 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:35:56,757 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:35:56,799 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:35:56,800 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:35:56,801 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:35:56,801 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:35:56,802 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:35:56,803 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:35:56,803 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:35:56,804 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:35:56,804 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:35:56,804 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:35:56,804 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:35:56,804 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:35:56,805 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:35:56,805 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:35:56,805 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:35:56,805 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:35:56,805 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:35:56,805 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 03:35:56,805 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 03:35:56,805 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:35:56,805 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:35:56,805 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 03:35:56,805 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:35:56,805 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:35:56,806 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:35:56,806 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:35:56,806 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:35:56,806 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:35:56,806 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:35:56,806 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:35:56,806 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:35:56,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:35:56,806 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:35:56,806 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:35:56,808 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:35:56,808 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:35:56,809 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:35:56,809 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:35:56,809 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:35:56,809 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:35:56,810 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:35:56,810 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:35:56,810 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:35:56,810 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:35:56,810 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:35:56,810 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_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e43379b3f2624d77eec1084820c7c07499f5ec4432514ab066d4f5cf96eeebc [2024-11-28 03:35:57,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:35:57,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:35:57,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:35:57,202 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:35:57,202 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:35:57,204 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-2.i [2024-11-28 03:36:00,843 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/data/6c9f72f64/0b28b71fa27e4a93bee5b24d54a014e6/FLAG5d77fcb43 [2024-11-28 03:36:01,241 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:36:01,242 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-2.i [2024-11-28 03:36:01,268 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/data/6c9f72f64/0b28b71fa27e4a93bee5b24d54a014e6/FLAG5d77fcb43 [2024-11-28 03:36:01,284 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/data/6c9f72f64/0b28b71fa27e4a93bee5b24d54a014e6 [2024-11-28 03:36:01,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:36:01,289 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:36:01,290 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:36:01,290 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:36:01,296 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:36:01,297 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:36:01" (1/1) ... [2024-11-28 03:36:01,298 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43832dcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:36:01, skipping insertion in model container [2024-11-28 03:36:01,298 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:36:01" (1/1) ... [2024-11-28 03:36:01,341 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:36:01,791 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:01,837 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:01,842 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:01,846 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:01,854 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:01,891 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:01,892 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:01,895 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:01,895 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:01,898 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:01,900 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:01,901 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:01,902 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:01,907 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:01,908 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:01,911 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:01,912 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:01,913 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:01,914 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:01,918 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:01,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:36:01,940 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-11-28 03:36:01,941 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@67a7433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:36:01, skipping insertion in model container [2024-11-28 03:36:01,941 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:36:01,941 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-28 03:36:01,946 INFO L158 Benchmark]: Toolchain (without parser) took 654.03ms. Allocated memory is still 117.4MB. Free memory was 90.0MB in the beginning and 69.1MB in the end (delta: 20.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 03:36:01,950 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 117.4MB. Free memory is still 72.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:36:01,950 INFO L158 Benchmark]: CACSL2BoogieTranslator took 651.35ms. Allocated memory is still 117.4MB. Free memory was 89.8MB in the beginning and 69.1MB in the end (delta: 20.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 03:36:01,952 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 117.4MB. Free memory is still 72.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 651.35ms. Allocated memory is still 117.4MB. Free memory was 89.8MB in the beginning and 69.1MB in the end (delta: 20.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 727]: 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_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9e43379b3f2624d77eec1084820c7c07499f5ec4432514ab066d4f5cf96eeebc --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:36:04,919 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:36:05,083 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2024-11-28 03:36:05,093 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:36:05,093 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:36:05,139 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:36:05,140 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:36:05,140 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:36:05,142 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:36:05,142 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:36:05,144 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:36:05,144 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:36:05,144 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:36:05,144 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:36:05,144 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:36:05,145 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:36:05,145 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:36:05,145 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:36:05,145 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:36:05,145 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:36:05,145 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:36:05,145 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:36:05,145 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 03:36:05,146 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 03:36:05,146 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:36:05,146 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:36:05,146 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 03:36:05,146 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 03:36:05,146 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 03:36:05,146 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:36:05,146 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:36:05,146 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:36:05,147 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:36:05,148 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:36:05,148 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:36:05,148 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:36:05,148 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:36:05,148 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:36:05,148 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:36:05,149 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:36:05,149 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:36:05,149 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:36:05,149 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:36:05,149 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:36:05,150 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:36:05,150 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:36:05,150 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 03:36:05,150 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 03:36:05,150 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:36:05,150 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:36:05,150 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:36:05,151 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:36:05,152 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_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e43379b3f2624d77eec1084820c7c07499f5ec4432514ab066d4f5cf96eeebc [2024-11-28 03:36:05,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:36:05,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:36:05,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:36:05,602 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:36:05,606 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:36:05,608 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-2.i [2024-11-28 03:36:09,330 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/data/60b7600cb/37cef74814b445cf8e6313bda535ecdd/FLAG2a4e3d554 [2024-11-28 03:36:09,941 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:36:09,942 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-2.i [2024-11-28 03:36:09,973 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/data/60b7600cb/37cef74814b445cf8e6313bda535ecdd/FLAG2a4e3d554 [2024-11-28 03:36:10,003 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/data/60b7600cb/37cef74814b445cf8e6313bda535ecdd [2024-11-28 03:36:10,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:36:10,010 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:36:10,012 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:36:10,012 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:36:10,019 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:36:10,020 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:36:10" (1/1) ... [2024-11-28 03:36:10,021 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e99e6ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:36:10, skipping insertion in model container [2024-11-28 03:36:10,024 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:36:10" (1/1) ... [2024-11-28 03:36:10,103 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:36:10,790 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:10,866 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:10,882 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:10,887 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:10,909 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,001 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,005 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,009 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,012 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,019 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,027 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,035 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,036 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,044 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,045 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,049 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,050 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,052 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,053 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,059 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:36:11,084 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-28 03:36:11,113 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:36:11,170 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,208 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,213 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,217 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,225 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,260 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,260 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,264 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,264 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,267 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,269 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,270 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,271 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,277 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,282 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,285 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,287 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,288 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,289 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,295 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:36:11,299 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:36:11,312 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:36:11,509 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:36:11,565 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:36:11,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:36:11 WrapperNode [2024-11-28 03:36:11,568 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:36:11,570 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:36:11,571 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:36:11,571 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:36:11,585 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:36:11" (1/1) ... [2024-11-28 03:36:11,623 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:36:11" (1/1) ... [2024-11-28 03:36:11,718 INFO L138 Inliner]: procedures = 179, calls = 323, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1136 [2024-11-28 03:36:11,718 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:36:11,719 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:36:11,719 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:36:11,719 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:36:11,738 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:36:11" (1/1) ... [2024-11-28 03:36:11,739 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:36:11" (1/1) ... [2024-11-28 03:36:11,762 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:36:11" (1/1) ... [2024-11-28 03:36:11,960 INFO L175 MemorySlicer]: Split 301 memory accesses to 3 slices as follows [2, 265, 34]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 62 writes are split as follows [0, 58, 4]. [2024-11-28 03:36:11,960 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:36:11" (1/1) ... [2024-11-28 03:36:11,960 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:36:11" (1/1) ... [2024-11-28 03:36:12,045 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:36:11" (1/1) ... [2024-11-28 03:36:12,048 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:36:11" (1/1) ... [2024-11-28 03:36:12,061 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:36:11" (1/1) ... [2024-11-28 03:36:12,066 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:36:11" (1/1) ... [2024-11-28 03:36:12,071 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:36:11" (1/1) ... [2024-11-28 03:36:12,089 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:36:12,091 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:36:12,095 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:36:12,095 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:36:12,096 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:36:11" (1/1) ... [2024-11-28 03:36:12,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:36:12,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:36:12,162 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:36:12,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:36:12,205 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-28 03:36:12,206 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-28 03:36:12,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-28 03:36:12,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-28 03:36:12,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-28 03:36:12,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 03:36:12,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 03:36:12,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-28 03:36:12,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-28 03:36:12,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-28 03:36:12,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-28 03:36:12,210 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-28 03:36:12,210 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-28 03:36:12,210 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-28 03:36:12,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 03:36:12,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:36:12,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 03:36:12,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 03:36:12,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 03:36:12,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 03:36:12,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 03:36:12,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 03:36:12,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 03:36:12,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 03:36:12,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-28 03:36:12,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-28 03:36:12,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-28 03:36:12,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 03:36:12,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 03:36:12,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-28 03:36:12,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:36:12,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:36:12,604 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:36:12,606 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:36:22,268 INFO L? ?]: Removed 139 outVars from TransFormulas that were not future-live. [2024-11-28 03:36:22,269 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:36:22,286 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:36:22,287 INFO L312 CfgBuilder]: Removed 41 assume(true) statements. [2024-11-28 03:36:22,287 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:36:22 BoogieIcfgContainer [2024-11-28 03:36:22,287 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:36:22,290 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:36:22,290 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:36:22,297 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:36:22,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:36:10" (1/3) ... [2024-11-28 03:36:22,298 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a74d843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:36:22, skipping insertion in model container [2024-11-28 03:36:22,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:36:11" (2/3) ... [2024-11-28 03:36:22,298 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a74d843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:36:22, skipping insertion in model container [2024-11-28 03:36:22,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:36:22" (3/3) ... [2024-11-28 03:36:22,314 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test7-2.i [2024-11-28 03:36:22,338 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:36:22,340 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SFH_test7-2.i that has 5 procedures, 241 locations, 1 initial locations, 43 loop locations, and 2 error locations. [2024-11-28 03:36:22,416 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:36:22,434 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;@52fef468, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:36:22,435 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 03:36:22,441 INFO L276 IsEmpty]: Start isEmpty. Operand has 233 states, 223 states have (on average 1.6502242152466369) internal successors, (368), 226 states have internal predecessors, (368), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 03:36:22,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-28 03:36:22,450 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:36:22,451 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:36:22,452 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:36:22,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:22,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1768673471, now seen corresponding path program 1 times [2024-11-28 03:36:22,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:36:22,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1012408299] [2024-11-28 03:36:22,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:22,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:36:22,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:36:22,477 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:36:22,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:36:22,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:22,802 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:36:22,809 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:36:22,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:36:22,829 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:36:22,830 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:36:22,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012408299] [2024-11-28 03:36:22,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1012408299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:22,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:22,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:36:22,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022591929] [2024-11-28 03:36:22,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:22,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:36:22,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:36:22,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:36:22,878 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:36:22,881 INFO L87 Difference]: Start difference. First operand has 233 states, 223 states have (on average 1.6502242152466369) internal successors, (368), 226 states have internal predecessors, (368), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 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) [2024-11-28 03:36:22,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:36:22,922 INFO L93 Difference]: Finished difference Result 230 states and 296 transitions. [2024-11-28 03:36:22,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:36:22,924 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 [2024-11-28 03:36:22,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:36:22,935 INFO L225 Difference]: With dead ends: 230 [2024-11-28 03:36:22,935 INFO L226 Difference]: Without dead ends: 228 [2024-11-28 03:36:22,937 INFO L434 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 [2024-11-28 03:36:22,941 INFO L435 NwaCegarLoop]: 296 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, 296 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 [2024-11-28 03:36:22,942 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:36:22,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-28 03:36:22,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2024-11-28 03:36:22,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 220 states have (on average 1.3) internal successors, (286), 222 states have internal predecessors, (286), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:36:23,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 294 transitions. [2024-11-28 03:36:23,008 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 294 transitions. Word has length 10 [2024-11-28 03:36:23,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:36:23,009 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 294 transitions. [2024-11-28 03:36:23,009 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) [2024-11-28 03:36:23,010 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 294 transitions. [2024-11-28 03:36:23,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-28 03:36:23,010 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:36:23,011 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:36:23,025 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:36:23,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:36:23,212 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:36:23,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:23,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1101151823, now seen corresponding path program 1 times [2024-11-28 03:36:23,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:36:23,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [127154839] [2024-11-28 03:36:23,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:23,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:36:23,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:36:23,216 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:36:23,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:36:23,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:23,520 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:36:23,528 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:36:23,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:36:23,753 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:36:23,753 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:36:23,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [127154839] [2024-11-28 03:36:23,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [127154839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:23,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:23,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:36:23,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155849897] [2024-11-28 03:36:23,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:23,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:36:23,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:36:23,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:36:23,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:36:23,760 INFO L87 Difference]: Start difference. First operand 228 states and 294 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:28,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:36:32,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:36:33,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:36:34,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:36:34,011 INFO L93 Difference]: Finished difference Result 377 states and 487 transitions. [2024-11-28 03:36:34,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:36:34,015 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-28 03:36:34,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:36:34,018 INFO L225 Difference]: With dead ends: 377 [2024-11-28 03:36:34,019 INFO L226 Difference]: Without dead ends: 377 [2024-11-28 03:36:34,019 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:36:34,023 INFO L435 NwaCegarLoop]: 300 mSDtfsCounter, 184 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:36:34,024 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 825 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 111 Invalid, 1 Unknown, 0 Unchecked, 10.1s Time] [2024-11-28 03:36:34,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2024-11-28 03:36:34,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 345. [2024-11-28 03:36:34,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 337 states have (on average 1.2997032640949555) internal successors, (438), 339 states have internal predecessors, (438), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:36:34,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 446 transitions. [2024-11-28 03:36:34,066 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 446 transitions. Word has length 12 [2024-11-28 03:36:34,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:36:34,066 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 446 transitions. [2024-11-28 03:36:34,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:34,066 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 446 transitions. [2024-11-28 03:36:34,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-28 03:36:34,067 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:36:34,067 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:36:34,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:36:34,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:36:34,272 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:36:34,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:34,273 INFO L85 PathProgramCache]: Analyzing trace with hash -2084540190, now seen corresponding path program 1 times [2024-11-28 03:36:34,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:36:34,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1499111053] [2024-11-28 03:36:34,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:34,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:36:34,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:36:34,283 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:36:34,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:36:34,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:34,539 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:36:34,543 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:36:34,593 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:36:34,595 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:36:34,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2024-11-28 03:36:34,718 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:36:34,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 22 [2024-11-28 03:36:34,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:36:34,789 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:36:34,789 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:36:34,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499111053] [2024-11-28 03:36:34,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499111053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:34,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:34,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:36:34,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823770980] [2024-11-28 03:36:34,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:34,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:36:34,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:36:34,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:36:34,791 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:36:34,792 INFO L87 Difference]: Start difference. First operand 345 states and 446 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:35,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:36:35,880 INFO L93 Difference]: Finished difference Result 542 states and 705 transitions. [2024-11-28 03:36:35,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:36:35,882 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-28 03:36:35,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:36:35,885 INFO L225 Difference]: With dead ends: 542 [2024-11-28 03:36:35,885 INFO L226 Difference]: Without dead ends: 542 [2024-11-28 03:36:35,885 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:36:35,886 INFO L435 NwaCegarLoop]: 274 mSDtfsCounter, 269 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:36:35,887 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 814 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:36:35,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2024-11-28 03:36:35,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 344. [2024-11-28 03:36:35,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 336 states have (on average 1.2976190476190477) internal successors, (436), 338 states have internal predecessors, (436), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:36:35,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 444 transitions. [2024-11-28 03:36:35,910 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 444 transitions. Word has length 15 [2024-11-28 03:36:35,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:36:35,910 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 444 transitions. [2024-11-28 03:36:35,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:36:35,910 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 444 transitions. [2024-11-28 03:36:35,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-28 03:36:35,918 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:36:35,918 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:36:35,933 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:36:36,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:36:36,119 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:36:36,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:36,120 INFO L85 PathProgramCache]: Analyzing trace with hash -203768534, now seen corresponding path program 1 times [2024-11-28 03:36:36,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:36:36,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [333381963] [2024-11-28 03:36:36,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:36,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:36:36,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:36:36,126 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:36:36,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:36:36,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:36,822 INFO L256 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:36:36,830 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:36:36,908 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:36:36,908 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:36:36,912 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:36:36,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333381963] [2024-11-28 03:36:36,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333381963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:36,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:36,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:36:36,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198188709] [2024-11-28 03:36:36,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:36,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:36:36,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:36:36,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:36:36,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:36:36,915 INFO L87 Difference]: Start difference. First operand 344 states and 444 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:36:37,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:36:37,179 INFO L93 Difference]: Finished difference Result 384 states and 484 transitions. [2024-11-28 03:36:37,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:36:37,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 84 [2024-11-28 03:36:37,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:36:37,185 INFO L225 Difference]: With dead ends: 384 [2024-11-28 03:36:37,185 INFO L226 Difference]: Without dead ends: 384 [2024-11-28 03:36:37,185 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:36:37,186 INFO L435 NwaCegarLoop]: 276 mSDtfsCounter, 7 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:36:37,186 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 535 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:36:37,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2024-11-28 03:36:37,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 384. [2024-11-28 03:36:37,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 376 states have (on average 1.2659574468085106) internal successors, (476), 378 states have internal predecessors, (476), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:36:37,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 484 transitions. [2024-11-28 03:36:37,214 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 484 transitions. Word has length 84 [2024-11-28 03:36:37,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:36:37,215 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 484 transitions. [2024-11-28 03:36:37,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:36:37,215 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 484 transitions. [2024-11-28 03:36:37,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-28 03:36:37,218 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:36:37,218 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:36:37,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 03:36:37,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:36:37,419 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:36:37,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:37,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1079787540, now seen corresponding path program 1 times [2024-11-28 03:36:37,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:36:37,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1606885814] [2024-11-28 03:36:37,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:37,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:36:37,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:36:37,425 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:36:37,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:36:38,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:38,099 INFO L256 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:36:38,108 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:36:38,225 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:36:38,228 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:36:38,228 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:36:38,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606885814] [2024-11-28 03:36:38,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606885814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:38,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:38,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:36:38,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395925972] [2024-11-28 03:36:38,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:38,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:36:38,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:36:38,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:36:38,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:36:38,231 INFO L87 Difference]: Start difference. First operand 384 states and 484 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:36:38,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:36:38,533 INFO L93 Difference]: Finished difference Result 348 states and 426 transitions. [2024-11-28 03:36:38,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:36:38,534 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 84 [2024-11-28 03:36:38,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:36:38,538 INFO L225 Difference]: With dead ends: 348 [2024-11-28 03:36:38,538 INFO L226 Difference]: Without dead ends: 348 [2024-11-28 03:36:38,539 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:36:38,540 INFO L435 NwaCegarLoop]: 260 mSDtfsCounter, 14 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:36:38,540 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 1017 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:36:38,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2024-11-28 03:36:38,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2024-11-28 03:36:38,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 340 states have (on average 1.2294117647058824) internal successors, (418), 342 states have internal predecessors, (418), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:36:38,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 426 transitions. [2024-11-28 03:36:38,562 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 426 transitions. Word has length 84 [2024-11-28 03:36:38,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:36:38,564 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 426 transitions. [2024-11-28 03:36:38,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:36:38,565 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 426 transitions. [2024-11-28 03:36:38,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-28 03:36:38,571 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:36:38,571 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:36:38,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 03:36:38,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:36:38,772 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:36:38,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:38,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1877346272, now seen corresponding path program 1 times [2024-11-28 03:36:38,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:36:38,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [146488433] [2024-11-28 03:36:38,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:38,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:36:38,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:36:38,776 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:36:38,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 03:36:39,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:39,461 INFO L256 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:36:39,466 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:36:39,538 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:36:39,541 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:36:39,542 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:36:39,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146488433] [2024-11-28 03:36:39,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146488433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:39,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:39,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:36:39,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185574127] [2024-11-28 03:36:39,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:39,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:36:39,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:36:39,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:36:39,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:36:39,544 INFO L87 Difference]: Start difference. First operand 348 states and 426 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:36:39,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:36:39,627 INFO L93 Difference]: Finished difference Result 351 states and 430 transitions. [2024-11-28 03:36:39,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:36:39,629 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 84 [2024-11-28 03:36:39,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:36:39,636 INFO L225 Difference]: With dead ends: 351 [2024-11-28 03:36:39,638 INFO L226 Difference]: Without dead ends: 351 [2024-11-28 03:36:39,638 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:36:39,639 INFO L435 NwaCegarLoop]: 279 mSDtfsCounter, 0 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:36:39,639 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 833 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:36:39,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2024-11-28 03:36:39,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2024-11-28 03:36:39,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 342 states have (on average 1.2309941520467835) internal successors, (421), 345 states have internal predecessors, (421), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 03:36:39,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 430 transitions. [2024-11-28 03:36:39,664 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 430 transitions. Word has length 84 [2024-11-28 03:36:39,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:36:39,664 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 430 transitions. [2024-11-28 03:36:39,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:36:39,665 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 430 transitions. [2024-11-28 03:36:39,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-28 03:36:39,666 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:36:39,666 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:36:39,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 03:36:39,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:36:39,867 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:36:39,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:39,868 INFO L85 PathProgramCache]: Analyzing trace with hash -412729118, now seen corresponding path program 1 times [2024-11-28 03:36:39,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:36:39,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [385521738] [2024-11-28 03:36:39,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:39,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:36:39,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:36:39,871 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:36:39,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 03:36:40,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:40,551 INFO L256 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:36:40,558 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:36:40,580 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:36:40,581 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:36:40,582 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:36:40,586 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2024-11-28 03:36:40,696 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:36:40,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-11-28 03:36:40,732 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-28 03:36:40,732 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:36:40,733 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:36:40,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385521738] [2024-11-28 03:36:40,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385521738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:40,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:40,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:36:40,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107240199] [2024-11-28 03:36:40,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:40,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:36:40,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:36:40,735 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:36:40,735 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:36:40,736 INFO L87 Difference]: Start difference. First operand 351 states and 430 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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) [2024-11-28 03:36:41,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:36:41,703 INFO L93 Difference]: Finished difference Result 515 states and 645 transitions. [2024-11-28 03:36:41,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:36:41,705 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 86 [2024-11-28 03:36:41,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:36:41,708 INFO L225 Difference]: With dead ends: 515 [2024-11-28 03:36:41,708 INFO L226 Difference]: Without dead ends: 515 [2024-11-28 03:36:41,709 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:36:41,709 INFO L435 NwaCegarLoop]: 292 mSDtfsCounter, 212 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:36:41,710 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 839 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:36:41,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2024-11-28 03:36:41,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 353. [2024-11-28 03:36:41,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 344 states have (on average 1.2296511627906976) internal successors, (423), 347 states have internal predecessors, (423), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 03:36:41,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 432 transitions. [2024-11-28 03:36:41,726 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 432 transitions. Word has length 86 [2024-11-28 03:36:41,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:36:41,727 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 432 transitions. [2024-11-28 03:36:41,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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) [2024-11-28 03:36:41,727 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 432 transitions. [2024-11-28 03:36:41,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-28 03:36:41,729 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:36:41,729 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:36:41,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 03:36:41,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:36:41,930 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:36:41,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:41,931 INFO L85 PathProgramCache]: Analyzing trace with hash -259336825, now seen corresponding path program 1 times [2024-11-28 03:36:41,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:36:41,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [618292761] [2024-11-28 03:36:41,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:41,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:36:41,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:36:41,933 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:36:41,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 03:36:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:42,644 INFO L256 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:36:42,652 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:36:42,693 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-28 03:36:42,694 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:36:42,694 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:36:42,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618292761] [2024-11-28 03:36:42,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [618292761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:42,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:42,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:36:42,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813154562] [2024-11-28 03:36:42,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:42,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:36:42,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:36:42,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:36:42,696 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:36:42,697 INFO L87 Difference]: Start difference. First operand 353 states and 432 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2024-11-28 03:36:42,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:36:42,935 INFO L93 Difference]: Finished difference Result 393 states and 472 transitions. [2024-11-28 03:36:42,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:36:42,936 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 122 [2024-11-28 03:36:42,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:36:42,939 INFO L225 Difference]: With dead ends: 393 [2024-11-28 03:36:42,939 INFO L226 Difference]: Without dead ends: 393 [2024-11-28 03:36:42,939 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:36:42,940 INFO L435 NwaCegarLoop]: 262 mSDtfsCounter, 8 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:36:42,940 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 509 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:36:42,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-28 03:36:42,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2024-11-28 03:36:42,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 384 states have (on average 1.2057291666666667) internal successors, (463), 387 states have internal predecessors, (463), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 03:36:42,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 472 transitions. [2024-11-28 03:36:42,957 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 472 transitions. Word has length 122 [2024-11-28 03:36:42,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:36:42,959 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 472 transitions. [2024-11-28 03:36:42,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2024-11-28 03:36:42,959 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 472 transitions. [2024-11-28 03:36:42,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-28 03:36:42,961 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:36:42,961 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:36:42,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 03:36:43,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:36:43,162 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:36:43,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:43,163 INFO L85 PathProgramCache]: Analyzing trace with hash -534096439, now seen corresponding path program 1 times [2024-11-28 03:36:43,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:36:43,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [290870774] [2024-11-28 03:36:43,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:43,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:36:43,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:36:43,167 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:36:43,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 03:36:43,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:43,930 INFO L256 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:36:43,935 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:36:44,668 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-28 03:36:44,669 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:36:44,669 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:36:44,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290870774] [2024-11-28 03:36:44,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290870774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:44,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:44,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:36:44,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694031597] [2024-11-28 03:36:44,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:44,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:36:44,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:36:44,672 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:36:44,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:36:44,673 INFO L87 Difference]: Start difference. First operand 393 states and 472 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 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) [2024-11-28 03:36:49,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:36:53,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:36:57,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:36:57,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:36:57,325 INFO L93 Difference]: Finished difference Result 503 states and 609 transitions. [2024-11-28 03:36:57,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:36:57,328 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 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 122 [2024-11-28 03:36:57,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:36:57,331 INFO L225 Difference]: With dead ends: 503 [2024-11-28 03:36:57,331 INFO L226 Difference]: Without dead ends: 503 [2024-11-28 03:36:57,331 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:36:57,332 INFO L435 NwaCegarLoop]: 281 mSDtfsCounter, 443 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:36:57,332 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 521 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 94 Invalid, 2 Unknown, 0 Unchecked, 12.6s Time] [2024-11-28 03:36:57,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2024-11-28 03:36:57,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 500. [2024-11-28 03:36:57,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 491 states have (on average 1.2158859470468433) internal successors, (597), 494 states have internal predecessors, (597), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 03:36:57,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 606 transitions. [2024-11-28 03:36:57,351 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 606 transitions. Word has length 122 [2024-11-28 03:36:57,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:36:57,351 INFO L471 AbstractCegarLoop]: Abstraction has 500 states and 606 transitions. [2024-11-28 03:36:57,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 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) [2024-11-28 03:36:57,352 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 606 transitions. [2024-11-28 03:36:57,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 03:36:57,354 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:36:57,354 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:36:57,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-28 03:36:57,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:36:57,558 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:36:57,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:57,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1715923465, now seen corresponding path program 1 times [2024-11-28 03:36:57,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:36:57,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [994400188] [2024-11-28 03:36:57,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:57,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:36:57,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:36:57,563 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:36:57,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 03:36:58,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:58,364 INFO L256 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:36:58,368 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:36:58,430 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-28 03:36:58,431 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:36:58,431 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:36:58,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994400188] [2024-11-28 03:36:58,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994400188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:36:58,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:36:58,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:36:58,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781186482] [2024-11-28 03:36:58,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:36:58,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:36:58,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:36:58,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:36:58,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:36:58,434 INFO L87 Difference]: Start difference. First operand 500 states and 606 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 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) [2024-11-28 03:36:58,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:36:58,668 INFO L93 Difference]: Finished difference Result 446 states and 519 transitions. [2024-11-28 03:36:58,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:36:58,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 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 130 [2024-11-28 03:36:58,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:36:58,671 INFO L225 Difference]: With dead ends: 446 [2024-11-28 03:36:58,672 INFO L226 Difference]: Without dead ends: 446 [2024-11-28 03:36:58,672 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:36:58,673 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 32 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:36:58,673 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 730 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:36:58,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2024-11-28 03:36:58,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 446. [2024-11-28 03:36:58,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 437 states have (on average 1.1670480549199085) internal successors, (510), 440 states have internal predecessors, (510), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 03:36:58,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 519 transitions. [2024-11-28 03:36:58,689 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 519 transitions. Word has length 130 [2024-11-28 03:36:58,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:36:58,690 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 519 transitions. [2024-11-28 03:36:58,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 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) [2024-11-28 03:36:58,690 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 519 transitions. [2024-11-28 03:36:58,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 03:36:58,692 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:36:58,693 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:36:58,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-28 03:36:58,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:36:58,894 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:36:58,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:58,894 INFO L85 PathProgramCache]: Analyzing trace with hash 308012713, now seen corresponding path program 1 times [2024-11-28 03:36:58,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:36:58,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1493043772] [2024-11-28 03:36:58,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:58,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:36:58,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:36:58,897 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:36:58,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 03:36:59,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:59,692 INFO L256 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:36:59,697 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:36:59,792 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:36:59,792 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:37:00,036 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:37:00,036 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:37:00,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493043772] [2024-11-28 03:37:00,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493043772] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:37:00,037 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:37:00,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-28 03:37:00,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625127467] [2024-11-28 03:37:00,037 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:37:00,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:37:00,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:37:00,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:37:00,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:37:00,040 INFO L87 Difference]: Start difference. First operand 446 states and 519 transitions. Second operand has 8 states, 8 states have (on average 16.125) internal successors, (129), 8 states have internal predecessors, (129), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 03:37:00,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:37:00,379 INFO L93 Difference]: Finished difference Result 457 states and 536 transitions. [2024-11-28 03:37:00,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:37:00,381 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.125) internal successors, (129), 8 states have internal predecessors, (129), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 130 [2024-11-28 03:37:00,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:37:00,384 INFO L225 Difference]: With dead ends: 457 [2024-11-28 03:37:00,384 INFO L226 Difference]: Without dead ends: 457 [2024-11-28 03:37:00,384 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:37:00,385 INFO L435 NwaCegarLoop]: 266 mSDtfsCounter, 4 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:37:00,386 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1058 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:37:00,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2024-11-28 03:37:00,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 455. [2024-11-28 03:37:00,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 445 states have (on average 1.1775280898876404) internal successors, (524), 448 states have internal predecessors, (524), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 03:37:00,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 534 transitions. [2024-11-28 03:37:00,404 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 534 transitions. Word has length 130 [2024-11-28 03:37:00,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:37:00,404 INFO L471 AbstractCegarLoop]: Abstraction has 455 states and 534 transitions. [2024-11-28 03:37:00,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.125) internal successors, (129), 8 states have internal predecessors, (129), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 03:37:00,405 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 534 transitions. [2024-11-28 03:37:00,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-28 03:37:00,407 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:37:00,407 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:37:00,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 03:37:00,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:37:00,608 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:37:00,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:37:00,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1860998905, now seen corresponding path program 2 times [2024-11-28 03:37:00,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:37:00,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1197762295] [2024-11-28 03:37:00,609 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:37:00,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:37:00,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:37:00,611 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:37:00,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 03:37:01,503 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:37:01,504 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:37:01,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:37:01,536 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:37:01,704 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 03:37:01,705 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:37:02,085 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-28 03:37:02,085 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:37:02,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197762295] [2024-11-28 03:37:02,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197762295] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:37:02,085 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:37:02,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-28 03:37:02,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394911510] [2024-11-28 03:37:02,086 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:37:02,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:37:02,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:37:02,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:37:02,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:37:02,088 INFO L87 Difference]: Start difference. First operand 455 states and 534 transitions. Second operand has 10 states, 10 states have (on average 13.5) internal successors, (135), 10 states have internal predecessors, (135), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:37:02,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:37:02,654 INFO L93 Difference]: Finished difference Result 463 states and 544 transitions. [2024-11-28 03:37:02,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:37:02,656 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.5) internal successors, (135), 10 states have internal predecessors, (135), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 134 [2024-11-28 03:37:02,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:37:02,659 INFO L225 Difference]: With dead ends: 463 [2024-11-28 03:37:02,660 INFO L226 Difference]: Without dead ends: 461 [2024-11-28 03:37:02,660 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:37:02,661 INFO L435 NwaCegarLoop]: 268 mSDtfsCounter, 6 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1329 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:37:02,662 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1329 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:37:02,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-11-28 03:37:02,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 459. [2024-11-28 03:37:02,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 449 states have (on average 1.1804008908685968) internal successors, (530), 452 states have internal predecessors, (530), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 03:37:02,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 539 transitions. [2024-11-28 03:37:02,678 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 539 transitions. Word has length 134 [2024-11-28 03:37:02,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:37:02,679 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 539 transitions. [2024-11-28 03:37:02,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.5) internal successors, (135), 10 states have internal predecessors, (135), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:37:02,679 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 539 transitions. [2024-11-28 03:37:02,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 03:37:02,686 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:37:02,686 INFO L218 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:37:02,710 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-28 03:37:02,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:37:02,887 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:37:02,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:37:02,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1196603833, now seen corresponding path program 3 times [2024-11-28 03:37:02,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:37:02,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1479096212] [2024-11-28 03:37:02,888 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:37:02,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:37:02,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:37:02,890 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:37:02,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 03:37:03,715 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-28 03:37:03,715 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:37:03,730 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 03:37:03,737 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:37:03,755 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:37:03,756 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:37:03,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2024-11-28 03:37:06,356 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:37:06,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 181 treesize of output 83 [2024-11-28 03:37:06,512 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:37:06,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 114 treesize of output 70 [2024-11-28 03:37:06,566 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-28 03:37:06,566 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:37:07,839 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-28 03:37:07,840 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:37:07,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479096212] [2024-11-28 03:37:07,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479096212] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:37:07,840 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:37:07,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-11-28 03:37:07,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569232635] [2024-11-28 03:37:07,840 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:37:07,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:37:07,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:37:07,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:37:07,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:37:07,842 INFO L87 Difference]: Start difference. First operand 459 states and 539 transitions. Second operand has 12 states, 12 states have (on average 15.833333333333334) internal successors, (190), 12 states have internal predecessors, (190), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:37:12,378 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 [0] [2024-11-28 03:37:16,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:37:21,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:37:25,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:37:29,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:37:33,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:37:37,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:37:42,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:37:46,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:37:50,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:37:55,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:37:59,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:38:03,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:38:07,515 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 [0] [2024-11-28 03:38:07,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:38:07,569 INFO L93 Difference]: Finished difference Result 1746 states and 2072 transitions. [2024-11-28 03:38:07,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:38:07,571 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 15.833333333333334) internal successors, (190), 12 states have internal predecessors, (190), 3 states have call successors, (5), 3 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 138 [2024-11-28 03:38:07,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:38:07,581 INFO L225 Difference]: With dead ends: 1746 [2024-11-28 03:38:07,581 INFO L226 Difference]: Without dead ends: 1746 [2024-11-28 03:38:07,581 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 261 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:38:07,582 INFO L435 NwaCegarLoop]: 440 mSDtfsCounter, 1863 mSDsluCounter, 1878 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 18 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1866 SdHoareTripleChecker+Valid, 2318 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:38:07,583 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1866 Valid, 2318 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 167 Invalid, 14 Unknown, 0 Unchecked, 59.4s Time] [2024-11-28 03:38:07,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2024-11-28 03:38:07,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 682. [2024-11-28 03:38:07,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 668 states have (on average 1.1736526946107784) internal successors, (784), 671 states have internal predecessors, (784), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-28 03:38:07,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 799 transitions. [2024-11-28 03:38:07,618 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 799 transitions. Word has length 138 [2024-11-28 03:38:07,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:38:07,619 INFO L471 AbstractCegarLoop]: Abstraction has 682 states and 799 transitions. [2024-11-28 03:38:07,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.833333333333334) internal successors, (190), 12 states have internal predecessors, (190), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:38:07,620 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 799 transitions. [2024-11-28 03:38:07,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-11-28 03:38:07,625 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:38:07,626 INFO L218 NwaCegarLoop]: trace histogram [10, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-28 03:38:07,649 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-28 03:38:07,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:38:07,827 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:38:07,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:07,828 INFO L85 PathProgramCache]: Analyzing trace with hash -599372436, now seen corresponding path program 1 times [2024-11-28 03:38:07,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:38:07,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1047109241] [2024-11-28 03:38:07,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:07,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:38:07,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:38:07,833 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:38:07,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 03:38:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:38:09,404 INFO L256 TraceCheckSpWp]: Trace formula consists of 1503 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:38:09,410 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:38:09,618 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 156 proven. 10 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2024-11-28 03:38:09,618 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:38:10,171 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 156 proven. 10 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2024-11-28 03:38:10,171 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:38:10,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047109241] [2024-11-28 03:38:10,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047109241] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:38:10,171 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:38:10,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-28 03:38:10,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260143633] [2024-11-28 03:38:10,172 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:38:10,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:38:10,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:38:10,174 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:38:10,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:38:10,175 INFO L87 Difference]: Start difference. First operand 682 states and 799 transitions. Second operand has 14 states, 14 states have (on average 12.5) internal successors, (175), 14 states have internal predecessors, (175), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 03:38:11,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:38:11,203 INFO L93 Difference]: Finished difference Result 705 states and 834 transitions. [2024-11-28 03:38:11,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 03:38:11,204 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 12.5) internal successors, (175), 14 states have internal predecessors, (175), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 309 [2024-11-28 03:38:11,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:38:11,208 INFO L225 Difference]: With dead ends: 705 [2024-11-28 03:38:11,208 INFO L226 Difference]: Without dead ends: 699 [2024-11-28 03:38:11,208 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 625 GetRequests, 604 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:38:11,209 INFO L435 NwaCegarLoop]: 267 mSDtfsCounter, 8 mSDsluCounter, 2901 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3168 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:38:11,209 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 3168 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:38:11,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2024-11-28 03:38:11,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 690. [2024-11-28 03:38:11,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 676 states have (on average 1.1789940828402368) internal successors, (797), 679 states have internal predecessors, (797), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-28 03:38:11,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 812 transitions. [2024-11-28 03:38:11,226 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 812 transitions. Word has length 309 [2024-11-28 03:38:11,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:38:11,226 INFO L471 AbstractCegarLoop]: Abstraction has 690 states and 812 transitions. [2024-11-28 03:38:11,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.5) internal successors, (175), 14 states have internal predecessors, (175), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 03:38:11,226 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 812 transitions. [2024-11-28 03:38:11,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2024-11-28 03:38:11,230 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:38:11,231 INFO L218 NwaCegarLoop]: trace histogram [16, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-28 03:38:11,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-28 03:38:11,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:38:11,432 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:38:11,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:11,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1526355148, now seen corresponding path program 2 times [2024-11-28 03:38:11,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:38:11,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [594017367] [2024-11-28 03:38:11,434 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:38:11,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:38:11,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:38:11,437 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:38:11,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 03:38:13,123 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:38:13,124 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:38:13,183 INFO L256 TraceCheckSpWp]: Trace formula consists of 1569 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 03:38:13,219 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:38:13,230 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:38:13,231 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:38:13,232 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:38:13,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2024-11-28 03:38:16,586 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:38:16,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 189 treesize of output 87 [2024-11-28 03:38:18,457 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:38:18,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 237 treesize of output 135 [2024-11-28 03:38:20,607 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:38:20,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 429 treesize of output 327 [2024-11-28 03:38:22,633 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:38:22,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1197 treesize of output 1095 [2024-11-28 03:38:22,940 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:38:22,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 4150 treesize of output 4106 [2024-11-28 03:38:23,039 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 0 proven. 344 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-28 03:38:23,039 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:38:26,671 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 0 proven. 344 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-28 03:38:26,672 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:38:26,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594017367] [2024-11-28 03:38:26,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594017367] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:38:26,672 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:38:26,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2024-11-28 03:38:26,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529104869] [2024-11-28 03:38:26,672 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:38:26,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 03:38:26,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:38:26,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 03:38:26,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:38:26,675 INFO L87 Difference]: Start difference. First operand 690 states and 812 transitions. Second operand has 18 states, 18 states have (on average 29.555555555555557) internal successors, (532), 18 states have internal predecessors, (532), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:38:31,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:38:36,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:38:41,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:38:46,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:38:50,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:38:55,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:38:59,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:39:04,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:39:08,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:39:13,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:39:17,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:39:21,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:39:25,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:39:30,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:39:34,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:39:38,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:39:42,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:39:46,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:39:51,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:39:55,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:39:59,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:40:03,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:40:07,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:40:10,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:40:14,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:40:19,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:40:25,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:40:29,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:40:35,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:40:39,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:40:41,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:40:46,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:40:50,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:40:54,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:40:58,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:41:02,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:41:06,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:41:10,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:41:14,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:41:19,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:41:23,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:41:27,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:41:31,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:41:31,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:41:31,559 INFO L93 Difference]: Finished difference Result 4001 states and 4748 transitions. [2024-11-28 03:41:31,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-28 03:41:31,561 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 29.555555555555557) internal successors, (532), 18 states have internal predecessors, (532), 3 states have call successors, (5), 3 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 315 [2024-11-28 03:41:31,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:41:31,572 INFO L225 Difference]: With dead ends: 4001 [2024-11-28 03:41:31,572 INFO L226 Difference]: Without dead ends: 4001 [2024-11-28 03:41:31,574 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 641 GetRequests, 609 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=274, Invalid=656, Unknown=0, NotChecked=0, Total=930 [2024-11-28 03:41:31,575 INFO L435 NwaCegarLoop]: 1145 mSDtfsCounter, 4547 mSDsluCounter, 8066 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 40 mSolverCounterUnsat, 41 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 182.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4553 SdHoareTripleChecker+Valid, 9211 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 41 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 182.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:41:31,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4553 Valid, 9211 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 705 Invalid, 41 Unknown, 0 Unchecked, 182.8s Time] [2024-11-28 03:41:31,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4001 states. [2024-11-28 03:41:31,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4001 to 1212. [2024-11-28 03:41:31,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1212 states, 1192 states have (on average 1.1568791946308725) internal successors, (1379), 1195 states have internal predecessors, (1379), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-28 03:41:31,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1212 states to 1212 states and 1406 transitions. [2024-11-28 03:41:31,632 INFO L78 Accepts]: Start accepts. Automaton has 1212 states and 1406 transitions. Word has length 315 [2024-11-28 03:41:31,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:41:31,634 INFO L471 AbstractCegarLoop]: Abstraction has 1212 states and 1406 transitions. [2024-11-28 03:41:31,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 29.555555555555557) internal successors, (532), 18 states have internal predecessors, (532), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:41:31,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1212 states and 1406 transitions. [2024-11-28 03:41:31,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 658 [2024-11-28 03:41:31,656 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:41:31,657 INFO L218 NwaCegarLoop]: trace histogram [16, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 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] [2024-11-28 03:41:31,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-28 03:41:31,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:41:31,857 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:41:31,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:41:31,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1268034068, now seen corresponding path program 3 times [2024-11-28 03:41:31,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:41:31,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1546647166] [2024-11-28 03:41:31,861 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:41:31,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:41:31,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:41:31,863 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:41:31,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e367-4da5-4749-94f1-47e89e3c68e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process