./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test2-2.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_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/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_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/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_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/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 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:16:10,461 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:16:10,571 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-28 02:16:10,582 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:16:10,582 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:16:10,612 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:16:10,613 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:16:10,614 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:16:10,614 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:16:10,614 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:16:10,615 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:16:10,615 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:16:10,615 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:16:10,616 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:16:10,616 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:16:10,617 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:16:10,617 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:16:10,617 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:16:10,617 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:16:10,617 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:16:10,617 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:16:10,617 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:16:10,617 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 02:16:10,617 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 02:16:10,617 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:16:10,618 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:16:10,618 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:16:10,618 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:16:10,619 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:16:10,619 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:16:10,619 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:16:10,619 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:16:10,620 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:16:10,620 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:16:10,620 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:16:10,620 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:16:10,620 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:16:10,620 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:16:10,620 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:16:10,620 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:16:10,621 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:16:10,621 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:16:10,621 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:16:10,621 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:16:10,621 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:16:10,621 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:16:10,621 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:16:10,621 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:16:10,621 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:16:10,621 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:16:10,621 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_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/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 -> 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c [2024-11-28 02:16:10,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:16:11,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:16:11,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:16:11,006 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:16:11,007 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:16:11,008 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test2-2.i [2024-11-28 02:16:14,483 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/data/74f54f1eb/d1d806b3085b499e8cfe6525e73ed9d5/FLAG0f2000c1e [2024-11-28 02:16:15,002 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:16:15,003 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test2-2.i [2024-11-28 02:16:15,024 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/data/74f54f1eb/d1d806b3085b499e8cfe6525e73ed9d5/FLAG0f2000c1e [2024-11-28 02:16:15,052 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/data/74f54f1eb/d1d806b3085b499e8cfe6525e73ed9d5 [2024-11-28 02:16:15,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:16:15,059 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:16:15,061 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:16:15,061 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:16:15,067 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:16:15,068 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:16:15" (1/1) ... [2024-11-28 02:16:15,073 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@248644ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:15, skipping insertion in model container [2024-11-28 02:16:15,073 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:16:15" (1/1) ... [2024-11-28 02:16:15,156 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:16:15,741 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:15,806 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:15,816 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:15,821 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:15,829 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:15,872 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:15,872 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:15,876 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:15,876 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:15,878 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:15,882 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 02:16:15,883 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:15,885 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:15,886 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:15,891 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 02:16:15,900 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:16:15,915 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-11-28 02:16:15,915 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4135f5e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:15, skipping insertion in model container [2024-11-28 02:16:15,915 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:16:15,916 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-28 02:16:15,918 INFO L158 Benchmark]: Toolchain (without parser) took 858.33ms. Allocated memory is still 142.6MB. Free memory was 103.3MB in the beginning and 83.6MB in the end (delta: 19.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:16:15,919 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 167.8MB. Free memory is still 106.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:16:15,919 INFO L158 Benchmark]: CACSL2BoogieTranslator took 854.72ms. Allocated memory is still 142.6MB. Free memory was 103.3MB in the beginning and 83.6MB in the end (delta: 19.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:16:15,920 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 167.8MB. Free memory is still 106.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 854.72ms. Allocated memory is still 142.6MB. Free memory was 103.3MB in the beginning and 83.6MB in the end (delta: 19.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 831]: 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_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/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_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/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_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/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 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:16:18,913 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:16:19,061 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2024-11-28 02:16:19,076 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:16:19,076 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:16:19,134 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:16:19,135 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:16:19,135 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:16:19,136 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:16:19,137 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:16:19,138 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:16:19,138 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:16:19,138 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:16:19,139 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:16:19,140 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:16:19,140 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:16:19,140 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:16:19,140 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:16:19,141 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:16:19,141 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:16:19,141 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:16:19,141 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:16:19,141 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 02:16:19,142 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 02:16:19,142 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:16:19,142 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:16:19,142 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:16:19,143 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 02:16:19,143 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 02:16:19,143 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:16:19,143 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:16:19,143 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:16:19,143 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:16:19,143 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:16:19,145 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:16:19,145 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:16:19,145 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:16:19,145 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:16:19,145 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:16:19,145 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:16:19,146 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:16:19,146 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:16:19,146 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:16:19,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:16:19,146 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:16:19,146 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:16:19,147 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 02:16:19,147 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 02:16:19,147 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:16:19,148 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:16:19,148 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:16:19,148 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:16:19,148 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_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/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 -> 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c [2024-11-28 02:16:19,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:16:19,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:16:19,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:16:19,542 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:16:19,543 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:16:19,544 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test2-2.i [2024-11-28 02:16:23,082 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/data/1ee5db4b9/045b1142432c4d8dafd6c4aacde78e04/FLAG86209b9ce [2024-11-28 02:16:23,514 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:16:23,515 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test2-2.i [2024-11-28 02:16:23,539 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/data/1ee5db4b9/045b1142432c4d8dafd6c4aacde78e04/FLAG86209b9ce [2024-11-28 02:16:23,557 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/data/1ee5db4b9/045b1142432c4d8dafd6c4aacde78e04 [2024-11-28 02:16:23,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:16:23,562 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:16:23,564 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:16:23,565 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:16:23,572 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:16:23,574 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:16:23" (1/1) ... [2024-11-28 02:16:23,577 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@501513b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:23, skipping insertion in model container [2024-11-28 02:16:23,578 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:16:23" (1/1) ... [2024-11-28 02:16:23,638 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:16:24,327 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:24,400 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:24,408 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:24,420 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:24,434 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:24,515 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:24,515 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:24,518 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:24,519 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:24,521 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:24,524 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:24,526 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:24,528 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:24,529 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:24,535 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:24,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:16:24,562 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-28 02:16:24,594 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:16:24,641 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:24,668 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:24,671 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:24,677 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:24,693 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:24,755 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:24,759 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:24,762 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:24,766 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:24,768 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:24,774 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:24,778 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:24,779 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:24,780 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:16:24,790 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 02:16:24,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:16:24,799 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:16:24,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:16:25,009 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:16:25,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:25 WrapperNode [2024-11-28 02:16:25,010 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:16:25,011 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:16:25,011 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:16:25,011 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:16:25,019 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:25" (1/1) ... [2024-11-28 02:16:25,062 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:25" (1/1) ... [2024-11-28 02:16:25,122 INFO L138 Inliner]: procedures = 210, calls = 273, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1005 [2024-11-28 02:16:25,123 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:16:25,124 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:16:25,124 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:16:25,124 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:16:25,138 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:25" (1/1) ... [2024-11-28 02:16:25,138 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:25" (1/1) ... [2024-11-28 02:16:25,148 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:25" (1/1) ... [2024-11-28 02:16:25,236 INFO L175 MemorySlicer]: Split 254 memory accesses to 3 slices as follows [2, 34, 218]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 54 writes are split as follows [0, 4, 50]. [2024-11-28 02:16:25,236 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:25" (1/1) ... [2024-11-28 02:16:25,237 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:25" (1/1) ... [2024-11-28 02:16:25,307 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:25" (1/1) ... [2024-11-28 02:16:25,312 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:25" (1/1) ... [2024-11-28 02:16:25,326 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:25" (1/1) ... [2024-11-28 02:16:25,339 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:25" (1/1) ... [2024-11-28 02:16:25,350 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:25" (1/1) ... [2024-11-28 02:16:25,365 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:16:25,367 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:16:25,368 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:16:25,368 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:16:25,372 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:25" (1/1) ... [2024-11-28 02:16:25,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:16:25,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:16:25,418 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:16:25,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:16:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-28 02:16:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-28 02:16:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-28 02:16:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 02:16:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 02:16:25,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-28 02:16:25,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-28 02:16:25,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-28 02:16:25,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-28 02:16:25,455 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-28 02:16:25,455 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-28 02:16:25,456 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-28 02:16:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 02:16:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 02:16:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 02:16:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 02:16:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-28 02:16:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-28 02:16:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-28 02:16:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 02:16:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 02:16:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 02:16:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-28 02:16:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 02:16:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:16:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 02:16:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 02:16:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 02:16:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:16:25,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:16:25,747 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:16:25,749 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:16:34,457 INFO L? ?]: Removed 134 outVars from TransFormulas that were not future-live. [2024-11-28 02:16:34,457 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:16:34,482 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:16:34,484 INFO L312 CfgBuilder]: Removed 36 assume(true) statements. [2024-11-28 02:16:34,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:16:34 BoogieIcfgContainer [2024-11-28 02:16:34,485 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:16:34,489 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:16:34,489 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:16:34,497 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:16:34,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:16:23" (1/3) ... [2024-11-28 02:16:34,499 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38776daf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:16:34, skipping insertion in model container [2024-11-28 02:16:34,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:25" (2/3) ... [2024-11-28 02:16:34,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38776daf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:16:34, skipping insertion in model container [2024-11-28 02:16:34,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:16:34" (3/3) ... [2024-11-28 02:16:34,504 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_JEN_nondet_test2-2.i [2024-11-28 02:16:34,524 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:16:34,526 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_JEN_nondet_test2-2.i that has 4 procedures, 213 locations, 1 initial locations, 38 loop locations, and 2 error locations. [2024-11-28 02:16:34,580 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:16:34,594 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;@1cd9c01a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:16:34,594 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 02:16:34,599 INFO L276 IsEmpty]: Start isEmpty. Operand has 205 states, 198 states have (on average 1.6464646464646464) internal successors, (326), 200 states have internal predecessors, (326), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:16:34,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-28 02:16:34,605 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:16:34,606 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-28 02:16:34,607 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:16:34,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:16:34,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1665255, now seen corresponding path program 1 times [2024-11-28 02:16:34,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:16:34,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [124576495] [2024-11-28 02:16:34,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:16:34,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:16:34,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:16:34,631 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:16:34,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:16:34,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:16:34,881 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:16:34,888 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:16:35,012 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_16| (_ BitVec 32))) (and (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_16| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_16|)))) is different from true [2024-11-28 02:16:35,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:16:35,022 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:16:35,026 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:16:35,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124576495] [2024-11-28 02:16:35,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124576495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:16:35,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:16:35,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:16:35,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241835672] [2024-11-28 02:16:35,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:16:35,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:16:35,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:16:35,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:16:35,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-28 02:16:35,077 INFO L87 Difference]: Start difference. First operand has 205 states, 198 states have (on average 1.6464646464646464) internal successors, (326), 200 states have internal predecessors, (326), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:16:39,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:16:39,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:16:39,947 INFO L93 Difference]: Finished difference Result 305 states and 394 transitions. [2024-11-28 02:16:39,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:16:39,959 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-28 02:16:39,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:16:39,969 INFO L225 Difference]: With dead ends: 305 [2024-11-28 02:16:39,970 INFO L226 Difference]: Without dead ends: 302 [2024-11-28 02:16:39,971 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-28 02:16:39,975 INFO L435 NwaCegarLoop]: 254 mSDtfsCounter, 128 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 395 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:16:39,976 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 495 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 1 Unknown, 395 Unchecked, 4.8s Time] [2024-11-28 02:16:39,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2024-11-28 02:16:40,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 202. [2024-11-28 02:16:40,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 196 states have (on average 1.2908163265306123) internal successors, (253), 197 states have internal predecessors, (253), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:16:40,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 259 transitions. [2024-11-28 02:16:40,037 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 259 transitions. Word has length 4 [2024-11-28 02:16:40,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:16:40,038 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 259 transitions. [2024-11-28 02:16:40,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:16:40,039 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 259 transitions. [2024-11-28 02:16:40,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-28 02:16:40,039 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:16:40,040 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:16:40,048 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:16:40,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:16:40,244 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:16:40,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:16:40,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1502561021, now seen corresponding path program 1 times [2024-11-28 02:16:40,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:16:40,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1540980228] [2024-11-28 02:16:40,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:16:40,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:16:40,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:16:40,248 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:16:40,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:16:40,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:16:40,504 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:16:40,507 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:16:40,726 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_17| (_ BitVec 32))) (and (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_17| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_17|)))) is different from true [2024-11-28 02:16:40,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:16:40,728 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:16:40,728 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:16:40,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540980228] [2024-11-28 02:16:40,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1540980228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:16:40,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:16:40,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:16:40,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938074347] [2024-11-28 02:16:40,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:16:40,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:16:40,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:16:40,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:16:40,731 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-28 02:16:40,732 INFO L87 Difference]: Start difference. First operand 202 states and 259 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:16:44,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:16:46,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:16:46,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:16:46,179 INFO L93 Difference]: Finished difference Result 303 states and 390 transitions. [2024-11-28 02:16:46,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:16:46,186 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2024-11-28 02:16:46,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:16:46,188 INFO L225 Difference]: With dead ends: 303 [2024-11-28 02:16:46,188 INFO L226 Difference]: Without dead ends: 301 [2024-11-28 02:16:46,188 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-28 02:16:46,189 INFO L435 NwaCegarLoop]: 252 mSDtfsCounter, 118 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 389 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:16:46,192 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 492 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 1 Unknown, 389 Unchecked, 5.4s Time] [2024-11-28 02:16:46,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-28 02:16:46,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 273. [2024-11-28 02:16:46,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 267 states have (on average 1.299625468164794) internal successors, (347), 268 states have internal predecessors, (347), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:16:46,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 353 transitions. [2024-11-28 02:16:46,229 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 353 transitions. Word has length 14 [2024-11-28 02:16:46,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:16:46,229 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 353 transitions. [2024-11-28 02:16:46,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:16:46,230 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 353 transitions. [2024-11-28 02:16:46,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-28 02:16:46,230 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:16:46,234 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:16:46,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 02:16:46,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:16:46,435 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:16:46,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:16:46,435 INFO L85 PathProgramCache]: Analyzing trace with hash -305220010, now seen corresponding path program 1 times [2024-11-28 02:16:46,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:16:46,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1731791173] [2024-11-28 02:16:46,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:16:46,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:16:46,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:16:46,440 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:16:46,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:16:46,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:16:46,675 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:16:46,679 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:16:46,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:16:46,875 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:16:46,875 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:16:46,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731791173] [2024-11-28 02:16:46,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731791173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:16:46,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:16:46,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:16:46,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917713692] [2024-11-28 02:16:46,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:16:46,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:16:46,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:16:46,878 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:16:46,878 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:16:46,878 INFO L87 Difference]: Start difference. First operand 273 states and 353 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:16:51,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:16:55,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:16:55,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:16:55,948 INFO L93 Difference]: Finished difference Result 379 states and 484 transitions. [2024-11-28 02:16:55,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:16:55,950 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 23 [2024-11-28 02:16:55,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:16:55,952 INFO L225 Difference]: With dead ends: 379 [2024-11-28 02:16:55,952 INFO L226 Difference]: Without dead ends: 375 [2024-11-28 02:16:55,952 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:16:55,953 INFO L435 NwaCegarLoop]: 247 mSDtfsCounter, 153 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:16:55,953 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 694 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 79 Invalid, 1 Unknown, 0 Unchecked, 9.0s Time] [2024-11-28 02:16:55,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-28 02:16:55,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 342. [2024-11-28 02:16:55,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 336 states have (on average 1.2886904761904763) internal successors, (433), 337 states have internal predecessors, (433), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:16:55,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 439 transitions. [2024-11-28 02:16:55,972 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 439 transitions. Word has length 23 [2024-11-28 02:16:55,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:16:55,972 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 439 transitions. [2024-11-28 02:16:55,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:16:55,972 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 439 transitions. [2024-11-28 02:16:55,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-28 02:16:55,974 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:16:55,974 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:16:55,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 02:16:56,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:16:56,178 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:16:56,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:16:56,179 INFO L85 PathProgramCache]: Analyzing trace with hash 613955724, now seen corresponding path program 1 times [2024-11-28 02:16:56,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:16:56,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1468504151] [2024-11-28 02:16:56,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:16:56,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:16:56,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:16:56,182 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:16:56,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:16:56,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:16:56,425 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:16:56,428 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:16:56,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:16:56,556 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:16:56,556 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:16:56,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468504151] [2024-11-28 02:16:56,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468504151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:16:56,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:16:56,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:16:56,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499152594] [2024-11-28 02:16:56,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:16:56,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:16:56,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:16:56,558 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:16:56,558 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:16:56,559 INFO L87 Difference]: Start difference. First operand 342 states and 439 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:16:56,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:16:56,772 INFO L93 Difference]: Finished difference Result 369 states and 451 transitions. [2024-11-28 02:16:56,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:16:56,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 49 [2024-11-28 02:16:56,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:16:56,775 INFO L225 Difference]: With dead ends: 369 [2024-11-28 02:16:56,775 INFO L226 Difference]: Without dead ends: 369 [2024-11-28 02:16:56,775 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:16:56,776 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 23 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:16:56,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 663 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:16:56,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2024-11-28 02:16:56,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 366. [2024-11-28 02:16:56,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 360 states have (on average 1.2277777777777779) internal successors, (442), 361 states have internal predecessors, (442), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:16:56,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 448 transitions. [2024-11-28 02:16:56,793 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 448 transitions. Word has length 49 [2024-11-28 02:16:56,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:16:56,793 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 448 transitions. [2024-11-28 02:16:56,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:16:56,793 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 448 transitions. [2024-11-28 02:16:56,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-28 02:16:56,795 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:16:56,795 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:16:56,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 02:16:56,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:16:56,997 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:16:56,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:16:56,997 INFO L85 PathProgramCache]: Analyzing trace with hash 395101006, now seen corresponding path program 1 times [2024-11-28 02:16:56,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:16:56,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [388796507] [2024-11-28 02:16:56,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:16:56,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:16:56,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:16:56,999 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:16:57,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 02:16:57,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:16:57,240 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:16:57,242 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:16:57,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:16:57,288 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:16:57,288 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:16:57,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388796507] [2024-11-28 02:16:57,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [388796507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:16:57,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:16:57,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:16:57,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859110548] [2024-11-28 02:16:57,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:16:57,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:16:57,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:16:57,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:16:57,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:16:57,290 INFO L87 Difference]: Start difference. First operand 366 states and 448 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:16:57,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:16:57,448 INFO L93 Difference]: Finished difference Result 330 states and 391 transitions. [2024-11-28 02:16:57,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:16:57,449 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 49 [2024-11-28 02:16:57,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:16:57,451 INFO L225 Difference]: With dead ends: 330 [2024-11-28 02:16:57,451 INFO L226 Difference]: Without dead ends: 330 [2024-11-28 02:16:57,451 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:16:57,452 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 27 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:16:57,453 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 660 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:16:57,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2024-11-28 02:16:57,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2024-11-28 02:16:57,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 324 states have (on average 1.1882716049382716) internal successors, (385), 325 states have internal predecessors, (385), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:16:57,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 391 transitions. [2024-11-28 02:16:57,469 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 391 transitions. Word has length 49 [2024-11-28 02:16:57,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:16:57,469 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 391 transitions. [2024-11-28 02:16:57,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:16:57,470 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 391 transitions. [2024-11-28 02:16:57,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-28 02:16:57,472 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:16:57,472 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:16:57,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 02:16:57,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:16:57,673 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:16:57,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:16:57,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1767663104, now seen corresponding path program 1 times [2024-11-28 02:16:57,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:16:57,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [514632890] [2024-11-28 02:16:57,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:16:57,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:16:57,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:16:57,676 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:16:57,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 02:16:57,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:16:57,918 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 02:16:57,922 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:16:57,938 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 02:16:57,939 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 02:16:57,939 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 02:16:57,949 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 02:16:58,078 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:16:58,079 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 02:16:58,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:16:58,173 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:16:58,173 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:16:58,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514632890] [2024-11-28 02:16:58,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514632890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:16:58,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:16:58,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:16:58,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114294761] [2024-11-28 02:16:58,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:16:58,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:16:58,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:16:58,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:16:58,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:16:58,176 INFO L87 Difference]: Start difference. First operand 330 states and 391 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:16:59,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:16:59,071 INFO L93 Difference]: Finished difference Result 339 states and 411 transitions. [2024-11-28 02:16:59,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:16:59,073 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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 49 [2024-11-28 02:16:59,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:16:59,075 INFO L225 Difference]: With dead ends: 339 [2024-11-28 02:16:59,075 INFO L226 Difference]: Without dead ends: 336 [2024-11-28 02:16:59,075 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:16:59,080 INFO L435 NwaCegarLoop]: 236 mSDtfsCounter, 112 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:16:59,080 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 918 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:16:59,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2024-11-28 02:16:59,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 287. [2024-11-28 02:16:59,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 281 states have (on average 1.209964412811388) internal successors, (340), 282 states have internal predecessors, (340), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:16:59,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 346 transitions. [2024-11-28 02:16:59,099 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 346 transitions. Word has length 49 [2024-11-28 02:16:59,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:16:59,100 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 346 transitions. [2024-11-28 02:16:59,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:16:59,102 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 346 transitions. [2024-11-28 02:16:59,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-28 02:16:59,108 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:16:59,108 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:16:59,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 02:16:59,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:16:59,309 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:16:59,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:16:59,310 INFO L85 PathProgramCache]: Analyzing trace with hash 706329248, now seen corresponding path program 1 times [2024-11-28 02:16:59,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:16:59,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [983408427] [2024-11-28 02:16:59,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:16:59,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:16:59,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:16:59,315 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:16:59,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 02:16:59,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:16:59,922 INFO L256 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:16:59,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:16:59,966 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 02:16:59,966 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:16:59,967 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:16:59,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983408427] [2024-11-28 02:16:59,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983408427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:16:59,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:16:59,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:16:59,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939832472] [2024-11-28 02:16:59,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:16:59,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:16:59,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:16:59,969 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:16:59,969 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:16:59,970 INFO L87 Difference]: Start difference. First operand 287 states and 346 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:17:00,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:17:00,162 INFO L93 Difference]: Finished difference Result 327 states and 386 transitions. [2024-11-28 02:17:00,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:17:00,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 86 [2024-11-28 02:17:00,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:17:00,165 INFO L225 Difference]: With dead ends: 327 [2024-11-28 02:17:00,166 INFO L226 Difference]: Without dead ends: 327 [2024-11-28 02:17:00,166 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:17:00,167 INFO L435 NwaCegarLoop]: 223 mSDtfsCounter, 8 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:17:00,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 431 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:17:00,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2024-11-28 02:17:00,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 327. [2024-11-28 02:17:00,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 321 states have (on average 1.1838006230529594) internal successors, (380), 322 states have internal predecessors, (380), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:17:00,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 386 transitions. [2024-11-28 02:17:00,181 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 386 transitions. Word has length 86 [2024-11-28 02:17:00,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:17:00,181 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 386 transitions. [2024-11-28 02:17:00,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:17:00,181 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 386 transitions. [2024-11-28 02:17:00,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-28 02:17:00,184 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:17:00,184 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:17:00,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 02:17:00,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:17:00,385 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:17:00,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:00,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1123725854, now seen corresponding path program 1 times [2024-11-28 02:17:00,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:17:00,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1537129023] [2024-11-28 02:17:00,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:00,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:17:00,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:17:00,388 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:17:00,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 02:17:00,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:00,909 INFO L256 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:17:00,913 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:17:01,259 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 02:17:01,259 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:17:01,259 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:17:01,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537129023] [2024-11-28 02:17:01,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537129023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:17:01,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:17:01,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:17:01,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904319297] [2024-11-28 02:17:01,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:17:01,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:17:01,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:17:01,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:17:01,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:17:01,260 INFO L87 Difference]: Start difference. First operand 327 states and 386 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:17:05,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:17:09,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:17:12,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:17:13,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:17:13,028 INFO L93 Difference]: Finished difference Result 351 states and 426 transitions. [2024-11-28 02:17:13,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:17:13,031 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 86 [2024-11-28 02:17:13,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:17:13,033 INFO L225 Difference]: With dead ends: 351 [2024-11-28 02:17:13,033 INFO L226 Difference]: Without dead ends: 351 [2024-11-28 02:17:13,033 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:17:13,034 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 419 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:17:13,034 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 415 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 88 Invalid, 2 Unknown, 0 Unchecked, 11.7s Time] [2024-11-28 02:17:13,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2024-11-28 02:17:13,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 282. [2024-11-28 02:17:13,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 276 states have (on average 1.1956521739130435) internal successors, (330), 277 states have internal predecessors, (330), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:17:13,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 336 transitions. [2024-11-28 02:17:13,044 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 336 transitions. Word has length 86 [2024-11-28 02:17:13,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:17:13,045 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 336 transitions. [2024-11-28 02:17:13,045 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:17:13,045 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 336 transitions. [2024-11-28 02:17:13,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-28 02:17:13,048 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:17:13,048 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:17:13,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 02:17:13,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:17:13,249 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:17:13,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:13,249 INFO L85 PathProgramCache]: Analyzing trace with hash -24368873, now seen corresponding path program 1 times [2024-11-28 02:17:13,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:17:13,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2065543784] [2024-11-28 02:17:13,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:13,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:17:13,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:17:13,254 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:17:13,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 02:17:13,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:13,834 INFO L256 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:17:13,838 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:17:13,886 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-28 02:17:13,886 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:17:13,887 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:17:13,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065543784] [2024-11-28 02:17:13,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065543784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:17:13,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:17:13,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:17:13,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384070746] [2024-11-28 02:17:13,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:17:13,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:17:13,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:17:13,889 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:17:13,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:17:13,889 INFO L87 Difference]: Start difference. First operand 282 states and 336 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:17:14,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:17:14,043 INFO L93 Difference]: Finished difference Result 246 states and 278 transitions. [2024-11-28 02:17:14,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:17:14,044 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 95 [2024-11-28 02:17:14,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:17:14,045 INFO L225 Difference]: With dead ends: 246 [2024-11-28 02:17:14,045 INFO L226 Difference]: Without dead ends: 246 [2024-11-28 02:17:14,046 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:17:14,046 INFO L435 NwaCegarLoop]: 207 mSDtfsCounter, 32 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:17:14,047 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 607 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:17:14,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-11-28 02:17:14,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2024-11-28 02:17:14,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 240 states have (on average 1.1333333333333333) internal successors, (272), 241 states have internal predecessors, (272), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:17:14,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 278 transitions. [2024-11-28 02:17:14,055 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 278 transitions. Word has length 95 [2024-11-28 02:17:14,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:17:14,056 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 278 transitions. [2024-11-28 02:17:14,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:17:14,056 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 278 transitions. [2024-11-28 02:17:14,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-28 02:17:14,057 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:17:14,058 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:17:14,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-28 02:17:14,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:17:14,258 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:17:14,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:14,259 INFO L85 PathProgramCache]: Analyzing trace with hash 2034164809, now seen corresponding path program 1 times [2024-11-28 02:17:14,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:17:14,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [788679870] [2024-11-28 02:17:14,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:14,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:17:14,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:17:14,262 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:17:14,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 02:17:14,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:14,830 INFO L256 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:17:14,834 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:17:14,920 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 02:17:14,921 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:17:14,923 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:17:14,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788679870] [2024-11-28 02:17:14,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788679870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:17:14,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:17:14,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:17:14,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596537720] [2024-11-28 02:17:14,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:17:14,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:17:14,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:17:14,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:17:14,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:17:14,926 INFO L87 Difference]: Start difference. First operand 246 states and 278 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:17:19,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:17:23,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:17:27,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:17:27,038 INFO L93 Difference]: Finished difference Result 248 states and 280 transitions. [2024-11-28 02:17:27,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:17:27,041 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 95 [2024-11-28 02:17:27,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:17:27,042 INFO L225 Difference]: With dead ends: 248 [2024-11-28 02:17:27,042 INFO L226 Difference]: Without dead ends: 248 [2024-11-28 02:17:27,042 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:17:27,043 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 204 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:17:27,043 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 405 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 2 Unknown, 0 Unchecked, 12.1s Time] [2024-11-28 02:17:27,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-11-28 02:17:27,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 247. [2024-11-28 02:17:27,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 241 states have (on average 1.1327800829875518) internal successors, (273), 242 states have internal predecessors, (273), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:17:27,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 279 transitions. [2024-11-28 02:17:27,052 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 279 transitions. Word has length 95 [2024-11-28 02:17:27,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:17:27,052 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 279 transitions. [2024-11-28 02:17:27,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:17:27,053 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 279 transitions. [2024-11-28 02:17:27,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-28 02:17:27,054 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:17:27,054 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:17:27,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-28 02:17:27,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:17:27,255 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:17:27,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:27,255 INFO L85 PathProgramCache]: Analyzing trace with hash 2036011851, now seen corresponding path program 1 times [2024-11-28 02:17:27,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:17:27,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [473786866] [2024-11-28 02:17:27,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:27,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:17:27,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:17:27,258 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:17:27,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 02:17:27,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:27,863 INFO L256 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:17:27,867 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:17:27,920 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 02:17:27,920 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:17:27,920 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:17:27,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473786866] [2024-11-28 02:17:27,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [473786866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:17:27,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:17:27,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:17:27,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372558177] [2024-11-28 02:17:27,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:17:27,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:17:27,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:17:27,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:17:27,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:17:27,923 INFO L87 Difference]: Start difference. First operand 247 states and 279 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:17:27,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:17:27,996 INFO L93 Difference]: Finished difference Result 250 states and 283 transitions. [2024-11-28 02:17:27,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:17:27,997 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 95 [2024-11-28 02:17:27,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:17:27,999 INFO L225 Difference]: With dead ends: 250 [2024-11-28 02:17:27,999 INFO L226 Difference]: Without dead ends: 250 [2024-11-28 02:17:27,999 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:17:28,000 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 0 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:17:28,001 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 674 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:17:28,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2024-11-28 02:17:28,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2024-11-28 02:17:28,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 243 states have (on average 1.1358024691358024) internal successors, (276), 245 states have internal predecessors, (276), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 02:17:28,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 283 transitions. [2024-11-28 02:17:28,011 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 283 transitions. Word has length 95 [2024-11-28 02:17:28,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:17:28,011 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 283 transitions. [2024-11-28 02:17:28,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:17:28,012 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 283 transitions. [2024-11-28 02:17:28,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-28 02:17:28,013 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:17:28,013 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] [2024-11-28 02:17:28,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 02:17:28,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:17:28,217 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:17:28,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:28,218 INFO L85 PathProgramCache]: Analyzing trace with hash 224602989, now seen corresponding path program 1 times [2024-11-28 02:17:28,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:17:28,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [822490130] [2024-11-28 02:17:28,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:28,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:17:28,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:17:28,221 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:17:28,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 02:17:28,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:28,852 INFO L256 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:17:28,855 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:17:28,933 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 02:17:28,934 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:17:29,120 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 02:17:29,121 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:17:29,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822490130] [2024-11-28 02:17:29,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822490130] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:17:29,121 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:17:29,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-28 02:17:29,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098839961] [2024-11-28 02:17:29,122 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:17:29,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:17:29,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:17:29,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:17:29,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:17:29,123 INFO L87 Difference]: Start difference. First operand 250 states and 283 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 02:17:29,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:17:29,391 INFO L93 Difference]: Finished difference Result 261 states and 300 transitions. [2024-11-28 02:17:29,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 02:17:29,392 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 97 [2024-11-28 02:17:29,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:17:29,394 INFO L225 Difference]: With dead ends: 261 [2024-11-28 02:17:29,394 INFO L226 Difference]: Without dead ends: 261 [2024-11-28 02:17:29,394 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 186 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 02:17:29,395 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 5 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:17:29,395 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 674 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:17:29,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-11-28 02:17:29,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 259. [2024-11-28 02:17:29,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 251 states have (on average 1.155378486055777) internal successors, (290), 253 states have internal predecessors, (290), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 02:17:29,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 298 transitions. [2024-11-28 02:17:29,404 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 298 transitions. Word has length 97 [2024-11-28 02:17:29,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:17:29,404 INFO L471 AbstractCegarLoop]: Abstraction has 259 states and 298 transitions. [2024-11-28 02:17:29,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 02:17:29,405 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 298 transitions. [2024-11-28 02:17:29,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-28 02:17:29,405 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:17:29,406 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] [2024-11-28 02:17:29,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-28 02:17:29,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:17:29,607 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:17:29,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:29,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1248549173, now seen corresponding path program 2 times [2024-11-28 02:17:29,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:17:29,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1849062599] [2024-11-28 02:17:29,608 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:17:29,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:17:29,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:17:29,610 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:17:29,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 02:17:30,301 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:17:30,302 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:17:30,315 INFO L256 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:17:30,319 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:17:30,473 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-28 02:17:30,473 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:17:30,790 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 02:17:30,790 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:17:30,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849062599] [2024-11-28 02:17:30,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1849062599] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:17:30,790 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:17:30,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-28 02:17:30,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318789191] [2024-11-28 02:17:30,791 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:17:30,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:17:30,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:17:30,793 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:17:30,793 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:17:30,794 INFO L87 Difference]: Start difference. First operand 259 states and 298 transitions. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:17:31,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:17:31,235 INFO L93 Difference]: Finished difference Result 267 states and 308 transitions. [2024-11-28 02:17:31,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 02:17:31,236 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 101 [2024-11-28 02:17:31,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:17:31,239 INFO L225 Difference]: With dead ends: 267 [2024-11-28 02:17:31,239 INFO L226 Difference]: Without dead ends: 265 [2024-11-28 02:17:31,239 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:17:31,240 INFO L435 NwaCegarLoop]: 227 mSDtfsCounter, 6 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:17:31,241 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 903 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:17:31,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-28 02:17:31,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 263. [2024-11-28 02:17:31,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 255 states have (on average 1.1607843137254903) internal successors, (296), 257 states have internal predecessors, (296), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 02:17:31,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 303 transitions. [2024-11-28 02:17:31,252 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 303 transitions. Word has length 101 [2024-11-28 02:17:31,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:17:31,252 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 303 transitions. [2024-11-28 02:17:31,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:17:31,252 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 303 transitions. [2024-11-28 02:17:31,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-28 02:17:31,255 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:17:31,256 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] [2024-11-28 02:17:31,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-28 02:17:31,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:17:31,456 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:17:31,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:31,457 INFO L85 PathProgramCache]: Analyzing trace with hash 218888395, now seen corresponding path program 3 times [2024-11-28 02:17:31,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:17:31,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2071777731] [2024-11-28 02:17:31,458 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:17:31,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:17:31,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:17:31,461 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:17:31,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 02:17:32,166 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-28 02:17:32,166 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:17:32,177 INFO L256 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 02:17:32,180 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:17:32,933 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 02:17:32,934 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 02:17:32,934 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 02:17:32,937 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 02:17:33,049 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:17:33,049 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 02:17:33,099 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-28 02:17:33,099 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:17:33,099 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:17:33,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071777731] [2024-11-28 02:17:33,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071777731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:17:33,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:17:33,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:17:33,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712850845] [2024-11-28 02:17:33,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:17:33,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:17:33,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:17:33,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:17:33,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:17:33,101 INFO L87 Difference]: Start difference. First operand 263 states and 303 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:17:33,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:17:33,554 INFO L93 Difference]: Finished difference Result 326 states and 372 transitions. [2024-11-28 02:17:33,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:17:33,555 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 105 [2024-11-28 02:17:33,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:17:33,556 INFO L225 Difference]: With dead ends: 326 [2024-11-28 02:17:33,557 INFO L226 Difference]: Without dead ends: 326 [2024-11-28 02:17:33,557 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:17:33,557 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 245 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:17:33,558 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 642 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:17:33,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-11-28 02:17:33,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 265. [2024-11-28 02:17:33,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 257 states have (on average 1.1595330739299612) internal successors, (298), 259 states have internal predecessors, (298), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 02:17:33,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 305 transitions. [2024-11-28 02:17:33,567 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 305 transitions. Word has length 105 [2024-11-28 02:17:33,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:17:33,568 INFO L471 AbstractCegarLoop]: Abstraction has 265 states and 305 transitions. [2024-11-28 02:17:33,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:17:33,568 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 305 transitions. [2024-11-28 02:17:33,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 02:17:33,570 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:17:33,570 INFO L218 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:17:33,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-28 02:17:33,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:17:33,771 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:17:33,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:33,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1928337761, now seen corresponding path program 1 times [2024-11-28 02:17:33,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:17:33,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1609872678] [2024-11-28 02:17:33,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:17:33,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:17:33,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:17:33,776 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:17:33,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 02:17:34,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:17:34,574 INFO L256 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 02:17:34,578 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:17:34,786 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-28 02:17:34,786 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:17:35,264 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-28 02:17:35,265 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:17:35,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609872678] [2024-11-28 02:17:35,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609872678] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:17:35,265 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:17:35,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-28 02:17:35,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036286883] [2024-11-28 02:17:35,266 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:17:35,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 02:17:35,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:17:35,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 02:17:35,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:17:35,268 INFO L87 Difference]: Start difference. First operand 265 states and 305 transitions. Second operand has 14 states, 14 states have (on average 9.785714285714286) internal successors, (137), 14 states have internal predecessors, (137), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 02:17:36,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:17:36,074 INFO L93 Difference]: Finished difference Result 277 states and 321 transitions. [2024-11-28 02:17:36,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 02:17:36,076 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.785714285714286) internal successors, (137), 14 states have internal predecessors, (137), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 139 [2024-11-28 02:17:36,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:17:36,077 INFO L225 Difference]: With dead ends: 277 [2024-11-28 02:17:36,078 INFO L226 Difference]: Without dead ends: 273 [2024-11-28 02:17:36,078 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-11-28 02:17:36,079 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 7 mSDsluCounter, 1564 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:17:36,079 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1790 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:17:36,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-11-28 02:17:36,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 271. [2024-11-28 02:17:36,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 263 states have (on average 1.1711026615969582) internal successors, (308), 265 states have internal predecessors, (308), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 02:17:36,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 315 transitions. [2024-11-28 02:17:36,088 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 315 transitions. Word has length 139 [2024-11-28 02:17:36,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:17:36,088 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 315 transitions. [2024-11-28 02:17:36,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.785714285714286) internal successors, (137), 14 states have internal predecessors, (137), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 02:17:36,089 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 315 transitions. [2024-11-28 02:17:36,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-28 02:17:36,090 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:17:36,091 INFO L218 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:17:36,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-28 02:17:36,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:17:36,295 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:17:36,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:36,296 INFO L85 PathProgramCache]: Analyzing trace with hash -416338337, now seen corresponding path program 2 times [2024-11-28 02:17:36,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:17:36,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [21299634] [2024-11-28 02:17:36,296 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:17:36,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:17:36,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:17:36,299 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:17:36,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 02:17:37,132 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:17:37,132 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:17:37,150 INFO L256 TraceCheckSpWp]: Trace formula consists of 725 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 02:17:37,154 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:17:37,476 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 82 proven. 21 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-28 02:17:37,476 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:17:38,237 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 2 proven. 100 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-28 02:17:38,237 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:17:38,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21299634] [2024-11-28 02:17:38,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [21299634] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:17:38,238 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:17:38,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2024-11-28 02:17:38,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975538671] [2024-11-28 02:17:38,238 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:17:38,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 02:17:38,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:17:38,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 02:17:38,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2024-11-28 02:17:38,241 INFO L87 Difference]: Start difference. First operand 271 states and 315 transitions. Second operand has 18 states, 18 states have (on average 8.055555555555555) internal successors, (145), 18 states have internal predecessors, (145), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:17:39,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:17:39,995 INFO L93 Difference]: Finished difference Result 285 states and 334 transitions. [2024-11-28 02:17:39,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-28 02:17:39,995 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 8.055555555555555) internal successors, (145), 18 states have internal predecessors, (145), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 145 [2024-11-28 02:17:39,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:17:39,997 INFO L225 Difference]: With dead ends: 285 [2024-11-28 02:17:39,997 INFO L226 Difference]: Without dead ends: 279 [2024-11-28 02:17:39,998 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=324, Invalid=606, Unknown=0, NotChecked=0, Total=930 [2024-11-28 02:17:39,999 INFO L435 NwaCegarLoop]: 227 mSDtfsCounter, 10 mSDsluCounter, 1797 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2024 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:17:39,999 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2024 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 02:17:40,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2024-11-28 02:17:40,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279. [2024-11-28 02:17:40,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 271 states have (on average 1.1623616236162362) internal successors, (315), 273 states have internal predecessors, (315), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 02:17:40,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 322 transitions. [2024-11-28 02:17:40,008 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 322 transitions. Word has length 145 [2024-11-28 02:17:40,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:17:40,009 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 322 transitions. [2024-11-28 02:17:40,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 8.055555555555555) internal successors, (145), 18 states have internal predecessors, (145), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:17:40,009 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 322 transitions. [2024-11-28 02:17:40,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-28 02:17:40,011 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:17:40,011 INFO L218 NwaCegarLoop]: trace histogram [24, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:17:40,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-28 02:17:40,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:17:40,212 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:17:40,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:17:40,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1489055137, now seen corresponding path program 3 times [2024-11-28 02:17:40,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:17:40,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1947278296] [2024-11-28 02:17:40,214 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:17:40,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:17:40,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:17:40,216 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:17:40,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0943717d-a6d3-4acb-9a05-198bbdb6f9a6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process