./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_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_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/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_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/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_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/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 05:01:41,505 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:01:41,573 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-28 05:01:41,579 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:01:41,579 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:01:41,602 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:01:41,603 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:01:41,603 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:01:41,603 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:01:41,603 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:01:41,604 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:01:41,604 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:01:41,604 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:01:41,604 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:01:41,604 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:01:41,605 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:01:41,605 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:01:41,605 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:01:41,605 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:01:41,605 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:01:41,605 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:01:41,605 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:01:41,605 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 05:01:41,606 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 05:01:41,606 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:01:41,606 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:01:41,606 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 05:01:41,606 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 05:01:41,606 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:01:41,606 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:01:41,606 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:01:41,606 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:01:41,607 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:01:41,607 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:01:41,607 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:01:41,607 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:01:41,607 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:01:41,607 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:01:41,607 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:01:41,608 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:01:41,608 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:01:41,608 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:01:41,608 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:01:41,608 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:01:41,608 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:01:41,608 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:01:41,609 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:01:41,609 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:01:41,609 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:01:41,609 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:01:41,609 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_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/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 05:01:41,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:01:41,895 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:01:41,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:01:41,900 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:01:41,900 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:01:41,902 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test2-2.i [2024-11-28 05:01:44,889 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/data/8ae34ac95/75c75d78c51945598ab4081ea97aeeb4/FLAGdbfe0eb95 [2024-11-28 05:01:45,258 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:01:45,259 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test2-2.i [2024-11-28 05:01:45,290 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/data/8ae34ac95/75c75d78c51945598ab4081ea97aeeb4/FLAGdbfe0eb95 [2024-11-28 05:01:45,309 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/data/8ae34ac95/75c75d78c51945598ab4081ea97aeeb4 [2024-11-28 05:01:45,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:01:45,315 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:01:45,316 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:01:45,316 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:01:45,321 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:01:45,322 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:01:45" (1/1) ... [2024-11-28 05:01:45,324 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bc0f165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:45, skipping insertion in model container [2024-11-28 05:01:45,324 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:01:45" (1/1) ... [2024-11-28 05:01:45,389 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:01:45,883 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 05:01:45,926 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 05:01:45,932 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 05:01:45,937 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 05:01:45,945 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 05:01:45,996 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 05:01:45,996 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 05:01:45,999 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:01:45,999 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:01:46,001 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:01:46,004 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 05:01:46,005 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:01:46,006 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 05:01:46,007 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 05:01:46,011 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 05:01:46,018 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:01:46,030 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 05:01:46,031 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@13d28cd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:46, skipping insertion in model container [2024-11-28 05:01:46,031 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:01:46,031 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-28 05:01:46,033 INFO L158 Benchmark]: Toolchain (without parser) took 717.66ms. Allocated memory is still 142.6MB. Free memory was 117.0MB in the beginning and 97.2MB in the end (delta: 19.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:01:46,033 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 142.6MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:01:46,034 INFO L158 Benchmark]: CACSL2BoogieTranslator took 715.01ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 97.2MB in the end (delta: 19.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:01:46,035 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 142.6MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 715.01ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 97.2MB in the end (delta: 19.6MB). 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_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/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_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/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_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/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 05:01:48,519 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:01:48,659 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2024-11-28 05:01:48,668 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:01:48,668 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:01:48,693 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:01:48,694 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:01:48,694 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:01:48,694 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:01:48,694 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:01:48,694 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:01:48,695 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:01:48,696 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:01:48,696 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:01:48,697 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:01:48,697 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:01:48,697 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:01:48,697 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:01:48,698 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:01:48,698 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:01:48,698 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:01:48,698 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:01:48,698 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 05:01:48,698 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 05:01:48,698 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:01:48,698 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:01:48,698 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 05:01:48,698 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 05:01:48,699 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 05:01:48,699 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 05:01:48,699 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:01:48,699 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:01:48,699 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:01:48,699 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:01:48,699 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:01:48,699 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:01:48,699 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:01:48,699 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:01:48,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:01:48,700 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:01:48,700 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:01:48,700 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:01:48,700 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:01:48,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:01:48,700 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:01:48,700 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:01:48,701 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 05:01:48,701 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 05:01:48,701 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:01:48,701 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:01:48,701 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:01:48,701 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:01:48,702 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_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/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 05:01:49,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:01:49,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:01:49,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:01:49,021 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:01:49,021 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:01:49,022 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test2-2.i [2024-11-28 05:01:51,999 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/data/e3c2f2d33/f7a11a74b55242be9bee11cb6674d9b4/FLAGacdcf2c16 [2024-11-28 05:01:52,330 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:01:52,331 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test2-2.i [2024-11-28 05:01:52,363 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/data/e3c2f2d33/f7a11a74b55242be9bee11cb6674d9b4/FLAGacdcf2c16 [2024-11-28 05:01:52,376 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/data/e3c2f2d33/f7a11a74b55242be9bee11cb6674d9b4 [2024-11-28 05:01:52,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:01:52,380 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:01:52,381 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:01:52,381 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:01:52,386 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:01:52,386 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:01:52" (1/1) ... [2024-11-28 05:01:52,387 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50a1400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:52, skipping insertion in model container [2024-11-28 05:01:52,387 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:01:52" (1/1) ... [2024-11-28 05:01:52,436 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:01:52,892 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:01:52,940 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 05:01:52,945 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 05:01:52,950 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:01:52,961 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 05:01:53,006 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 05:01:53,007 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 05:01:53,010 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 05:01:53,010 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 05:01:53,012 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:01:53,015 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 05:01:53,017 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 05:01:53,018 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:01:53,019 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:01:53,025 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:01:53,030 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:01:53,052 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-28 05:01:53,067 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:01:53,121 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 05:01:53,162 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:01:53,169 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 05:01:53,172 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 05:01:53,178 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 05:01:53,208 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:01:53,209 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 05:01:53,214 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 05:01:53,217 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:01:53,219 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 05:01:53,224 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 05:01:53,226 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 05:01:53,227 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 05:01:53,228 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 05:01:53,232 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 05:01:53,235 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:01:53,242 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:01:53,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:01:53,387 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:01:53,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:53 WrapperNode [2024-11-28 05:01:53,390 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:01:53,391 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:01:53,392 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:01:53,392 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:01:53,399 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:53" (1/1) ... [2024-11-28 05:01:53,427 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:53" (1/1) ... [2024-11-28 05:01:53,482 INFO L138 Inliner]: procedures = 210, calls = 273, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1005 [2024-11-28 05:01:53,482 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:01:53,483 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:01:53,483 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:01:53,483 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:01:53,503 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:53" (1/1) ... [2024-11-28 05:01:53,503 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:53" (1/1) ... [2024-11-28 05:01:53,541 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:53" (1/1) ... [2024-11-28 05:01:53,644 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 05:01:53,644 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:53" (1/1) ... [2024-11-28 05:01:53,645 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:53" (1/1) ... [2024-11-28 05:01:53,704 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:53" (1/1) ... [2024-11-28 05:01:53,710 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:53" (1/1) ... [2024-11-28 05:01:53,724 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:53" (1/1) ... [2024-11-28 05:01:53,731 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:53" (1/1) ... [2024-11-28 05:01:53,739 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:53" (1/1) ... [2024-11-28 05:01:53,757 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:01:53,757 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:01:53,760 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:01:53,760 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:01:53,761 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:53" (1/1) ... [2024-11-28 05:01:53,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:01:53,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:01:53,799 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:01:53,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:01:53,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-28 05:01:53,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-28 05:01:53,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-28 05:01:53,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 05:01:53,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 05:01:53,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-28 05:01:53,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-28 05:01:53,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-28 05:01:53,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-28 05:01:53,838 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-28 05:01:53,838 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-28 05:01:53,838 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-28 05:01:53,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 05:01:53,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 05:01:53,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 05:01:53,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 05:01:53,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-28 05:01:53,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-28 05:01:53,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-28 05:01:53,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 05:01:53,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 05:01:53,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 05:01:53,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-28 05:01:53,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 05:01:53,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:01:53,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 05:01:53,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 05:01:53,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 05:01:53,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:01:53,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:01:54,147 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:01:54,149 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:02:04,035 INFO L? ?]: Removed 134 outVars from TransFormulas that were not future-live. [2024-11-28 05:02:04,035 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:02:04,054 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:02:04,056 INFO L312 CfgBuilder]: Removed 36 assume(true) statements. [2024-11-28 05:02:04,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:02:04 BoogieIcfgContainer [2024-11-28 05:02:04,057 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:02:04,060 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:02:04,060 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:02:04,066 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:02:04,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:01:52" (1/3) ... [2024-11-28 05:02:04,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5656fa70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:02:04, skipping insertion in model container [2024-11-28 05:02:04,068 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:53" (2/3) ... [2024-11-28 05:02:04,068 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5656fa70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:02:04, skipping insertion in model container [2024-11-28 05:02:04,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:02:04" (3/3) ... [2024-11-28 05:02:04,071 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_BER_nondet_test2-2.i [2024-11-28 05:02:04,088 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:02:04,090 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_BER_nondet_test2-2.i that has 4 procedures, 213 locations, 1 initial locations, 38 loop locations, and 2 error locations. [2024-11-28 05:02:04,135 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:02:04,147 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;@1535465e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:02:04,147 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 05:02:04,152 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 05:02:04,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-28 05:02:04,157 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:04,158 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-28 05:02:04,158 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:02:04,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:04,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1665255, now seen corresponding path program 1 times [2024-11-28 05:02:04,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:02:04,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1379037153] [2024-11-28 05:02:04,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:04,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:04,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:02:04,176 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:02:04,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 05:02:04,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:04,388 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 05:02:04,394 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:02:04,530 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 05:02:04,537 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 05:02:04,537 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:02:04,538 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:02:04,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379037153] [2024-11-28 05:02:04,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379037153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:04,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:04,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:02:04,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048354987] [2024-11-28 05:02:04,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:04,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:02:04,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:02:04,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:02:04,579 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-28 05:02:04,582 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 05:02:08,851 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 05:02:10,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:02:10,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:10,076 INFO L93 Difference]: Finished difference Result 305 states and 394 transitions. [2024-11-28 05:02:10,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:02:10,087 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 05:02:10,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:10,095 INFO L225 Difference]: With dead ends: 305 [2024-11-28 05:02:10,095 INFO L226 Difference]: Without dead ends: 302 [2024-11-28 05:02:10,097 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 05:02:10,100 INFO L435 NwaCegarLoop]: 254 mSDtfsCounter, 128 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s 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, 5.4s IncrementalHoareTripleChecker+Time [2024-11-28 05:02:10,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 495 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 1 Unknown, 395 Unchecked, 5.4s Time] [2024-11-28 05:02:10,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2024-11-28 05:02:10,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 202. [2024-11-28 05:02:10,166 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 05:02:10,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 259 transitions. [2024-11-28 05:02:10,177 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 259 transitions. Word has length 4 [2024-11-28 05:02:10,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:10,178 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 259 transitions. [2024-11-28 05:02:10,179 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 05:02:10,179 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 259 transitions. [2024-11-28 05:02:10,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-28 05:02:10,180 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:10,181 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:02:10,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 05:02:10,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:10,382 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:02:10,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:10,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1502561021, now seen corresponding path program 1 times [2024-11-28 05:02:10,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:02:10,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [892979519] [2024-11-28 05:02:10,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:10,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:10,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:02:10,385 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:02:10,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 05:02:10,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:10,580 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 05:02:10,582 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:02:10,822 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 05:02:10,822 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 05:02:10,822 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:02:10,823 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:02:10,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892979519] [2024-11-28 05:02:10,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [892979519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:10,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:10,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:02:10,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855676892] [2024-11-28 05:02:10,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:10,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:02:10,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:02:10,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:02:10,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-28 05:02:10,825 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 05:02:15,099 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 05:02:15,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:15,785 INFO L93 Difference]: Finished difference Result 303 states and 390 transitions. [2024-11-28 05:02:15,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:02:15,793 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 05:02:15,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:15,794 INFO L225 Difference]: With dead ends: 303 [2024-11-28 05:02:15,794 INFO L226 Difference]: Without dead ends: 301 [2024-11-28 05:02:15,795 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 05:02:15,795 INFO L435 NwaCegarLoop]: 252 mSDtfsCounter, 118 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s 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, 4.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:02:15,796 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 492 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 1 Unknown, 389 Unchecked, 4.9s Time] [2024-11-28 05:02:15,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-28 05:02:15,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 273. [2024-11-28 05:02:15,815 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 05:02:15,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 353 transitions. [2024-11-28 05:02:15,821 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 353 transitions. Word has length 14 [2024-11-28 05:02:15,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:15,822 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 353 transitions. [2024-11-28 05:02:15,822 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 05:02:15,822 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 353 transitions. [2024-11-28 05:02:15,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-28 05:02:15,823 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:15,823 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 05:02:15,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 05:02:16,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:16,024 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:02:16,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:16,024 INFO L85 PathProgramCache]: Analyzing trace with hash -305220010, now seen corresponding path program 1 times [2024-11-28 05:02:16,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:02:16,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [279814841] [2024-11-28 05:02:16,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:16,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:16,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:02:16,027 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:02:16,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 05:02:16,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:16,244 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 05:02:16,249 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:02:16,458 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 05:02:16,459 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:02:16,459 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:02:16,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279814841] [2024-11-28 05:02:16,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279814841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:16,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:16,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:02:16,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265967365] [2024-11-28 05:02:16,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:16,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:02:16,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:02:16,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:02:16,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:02:16,461 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 05:02:20,852 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 05:02:22,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:22,500 INFO L93 Difference]: Finished difference Result 379 states and 484 transitions. [2024-11-28 05:02:22,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:02:22,502 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 05:02:22,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:22,503 INFO L225 Difference]: With dead ends: 379 [2024-11-28 05:02:22,504 INFO L226 Difference]: Without dead ends: 375 [2024-11-28 05:02:22,504 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 05:02:22,504 INFO L435 NwaCegarLoop]: 247 mSDtfsCounter, 153 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s 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, 6.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:02:22,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 694 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 79 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2024-11-28 05:02:22,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-28 05:02:22,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 342. [2024-11-28 05:02:22,518 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 05:02:22,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 439 transitions. [2024-11-28 05:02:22,520 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 439 transitions. Word has length 23 [2024-11-28 05:02:22,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:22,520 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 439 transitions. [2024-11-28 05:02:22,521 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 05:02:22,521 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 439 transitions. [2024-11-28 05:02:22,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-28 05:02:22,522 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:22,522 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 05:02:22,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 05:02:22,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:22,727 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:02:22,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:22,727 INFO L85 PathProgramCache]: Analyzing trace with hash 613955724, now seen corresponding path program 1 times [2024-11-28 05:02:22,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:02:22,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [444208502] [2024-11-28 05:02:22,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:22,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:22,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:02:22,732 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:02:22,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 05:02:22,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:22,951 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:02:22,954 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:02:23,093 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 05:02:23,094 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:02:23,094 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:02:23,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444208502] [2024-11-28 05:02:23,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444208502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:23,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:23,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:02:23,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681474591] [2024-11-28 05:02:23,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:23,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:02:23,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:02:23,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:02:23,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:02:23,098 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 05:02:23,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:23,279 INFO L93 Difference]: Finished difference Result 369 states and 451 transitions. [2024-11-28 05:02:23,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:02:23,280 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 05:02:23,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:23,281 INFO L225 Difference]: With dead ends: 369 [2024-11-28 05:02:23,281 INFO L226 Difference]: Without dead ends: 369 [2024-11-28 05:02:23,282 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 05:02:23,282 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 23 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 05:02:23,283 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 05:02:23,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2024-11-28 05:02:23,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 366. [2024-11-28 05:02:23,293 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 05:02:23,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 448 transitions. [2024-11-28 05:02:23,295 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 448 transitions. Word has length 49 [2024-11-28 05:02:23,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:23,295 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 448 transitions. [2024-11-28 05:02:23,296 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 05:02:23,296 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 448 transitions. [2024-11-28 05:02:23,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-28 05:02:23,297 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:23,297 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 05:02:23,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 05:02:23,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:23,498 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:02:23,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:23,498 INFO L85 PathProgramCache]: Analyzing trace with hash 395101006, now seen corresponding path program 1 times [2024-11-28 05:02:23,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:02:23,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2059924151] [2024-11-28 05:02:23,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:23,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:23,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:02:23,501 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:02:23,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 05:02:23,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:23,730 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:02:23,733 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:02:23,777 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 05:02:23,777 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:02:23,777 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:02:23,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059924151] [2024-11-28 05:02:23,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2059924151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:23,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:23,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:02:23,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012371518] [2024-11-28 05:02:23,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:23,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:02:23,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:02:23,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:02:23,779 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:02:23,779 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 05:02:23,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:23,899 INFO L93 Difference]: Finished difference Result 330 states and 391 transitions. [2024-11-28 05:02:23,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:02:23,899 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 05:02:23,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:23,901 INFO L225 Difference]: With dead ends: 330 [2024-11-28 05:02:23,901 INFO L226 Difference]: Without dead ends: 330 [2024-11-28 05:02:23,901 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 05:02:23,902 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 05:02:23,902 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 05:02:23,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2024-11-28 05:02:23,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2024-11-28 05:02:23,910 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 05:02:23,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 391 transitions. [2024-11-28 05:02:23,912 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 391 transitions. Word has length 49 [2024-11-28 05:02:23,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:23,912 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 391 transitions. [2024-11-28 05:02:23,912 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 05:02:23,912 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 391 transitions. [2024-11-28 05:02:23,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-28 05:02:23,913 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:23,914 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 05:02:23,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 05:02:24,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:24,114 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:02:24,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:24,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1767663104, now seen corresponding path program 1 times [2024-11-28 05:02:24,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:02:24,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [642044327] [2024-11-28 05:02:24,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:24,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:24,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:02:24,117 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:02:24,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 05:02:24,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:24,327 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 05:02:24,330 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:02:24,349 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:02:24,350 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:02:24,350 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:02:24,358 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 05:02:24,483 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:02:24,484 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 05:02:24,581 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 05:02:24,581 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:02:24,581 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:02:24,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [642044327] [2024-11-28 05:02:24,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [642044327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:24,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:24,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:02:24,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359080807] [2024-11-28 05:02:24,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:24,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:02:24,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:02:24,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:02:24,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:02:24,587 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 05:02:25,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:25,253 INFO L93 Difference]: Finished difference Result 339 states and 411 transitions. [2024-11-28 05:02:25,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:02:25,255 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 05:02:25,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:25,256 INFO L225 Difference]: With dead ends: 339 [2024-11-28 05:02:25,256 INFO L226 Difference]: Without dead ends: 336 [2024-11-28 05:02:25,256 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 05:02:25,258 INFO L435 NwaCegarLoop]: 236 mSDtfsCounter, 112 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:02:25,258 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 918 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 05:02:25,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2024-11-28 05:02:25,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 287. [2024-11-28 05:02:25,266 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 05:02:25,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 346 transitions. [2024-11-28 05:02:25,268 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 346 transitions. Word has length 49 [2024-11-28 05:02:25,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:25,268 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 346 transitions. [2024-11-28 05:02:25,268 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 05:02:25,269 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 346 transitions. [2024-11-28 05:02:25,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-28 05:02:25,273 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:25,276 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 05:02:25,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 05:02:25,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:25,477 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:02:25,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:25,478 INFO L85 PathProgramCache]: Analyzing trace with hash 706329248, now seen corresponding path program 1 times [2024-11-28 05:02:25,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:02:25,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1260537299] [2024-11-28 05:02:25,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:25,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:25,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:02:25,481 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:02:25,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 05:02:25,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:25,930 INFO L256 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:02:25,934 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:02:25,971 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 05:02:25,971 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:02:25,971 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:02:25,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260537299] [2024-11-28 05:02:25,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260537299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:25,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:25,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:02:25,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072176694] [2024-11-28 05:02:25,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:25,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:02:25,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:02:25,973 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:02:25,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:02:25,973 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 05:02:26,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:26,123 INFO L93 Difference]: Finished difference Result 327 states and 386 transitions. [2024-11-28 05:02:26,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:02:26,123 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 05:02:26,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:26,124 INFO L225 Difference]: With dead ends: 327 [2024-11-28 05:02:26,125 INFO L226 Difference]: Without dead ends: 327 [2024-11-28 05:02:26,125 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 05:02:26,125 INFO L435 NwaCegarLoop]: 223 mSDtfsCounter, 8 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:02:26,126 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 431 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:02:26,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2024-11-28 05:02:26,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 327. [2024-11-28 05:02:26,133 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 05:02:26,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 386 transitions. [2024-11-28 05:02:26,135 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 386 transitions. Word has length 86 [2024-11-28 05:02:26,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:26,135 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 386 transitions. [2024-11-28 05:02:26,136 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 05:02:26,136 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 386 transitions. [2024-11-28 05:02:26,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-28 05:02:26,141 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:26,141 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 05:02:26,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 05:02:26,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:26,341 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:02:26,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:26,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1123725854, now seen corresponding path program 1 times [2024-11-28 05:02:26,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:02:26,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [616793830] [2024-11-28 05:02:26,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:26,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:26,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:02:26,344 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:02:26,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 05:02:26,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:26,799 INFO L256 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:02:26,802 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:02:27,196 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 05:02:27,196 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:02:27,196 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:02:27,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616793830] [2024-11-28 05:02:27,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616793830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:27,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:27,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:02:27,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674885373] [2024-11-28 05:02:27,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:27,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:02:27,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:02:27,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:02:27,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:02:27,199 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 05:02:31,675 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 05:02:35,680 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 05:02:37,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:37,725 INFO L93 Difference]: Finished difference Result 351 states and 426 transitions. [2024-11-28 05:02:37,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:02:37,728 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 05:02:37,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:37,730 INFO L225 Difference]: With dead ends: 351 [2024-11-28 05:02:37,730 INFO L226 Difference]: Without dead ends: 351 [2024-11-28 05:02:37,730 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 05:02:37,731 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 419 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s 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, 10.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:02:37,731 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 415 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 88 Invalid, 2 Unknown, 0 Unchecked, 10.5s Time] [2024-11-28 05:02:37,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2024-11-28 05:02:37,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 282. [2024-11-28 05:02:37,740 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 05:02:37,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 336 transitions. [2024-11-28 05:02:37,742 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 336 transitions. Word has length 86 [2024-11-28 05:02:37,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:37,743 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 336 transitions. [2024-11-28 05:02:37,744 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 05:02:37,744 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 336 transitions. [2024-11-28 05:02:37,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-28 05:02:37,746 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:37,747 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 05:02:37,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 05:02:37,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:37,948 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:02:37,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:37,948 INFO L85 PathProgramCache]: Analyzing trace with hash -24368873, now seen corresponding path program 1 times [2024-11-28 05:02:37,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:02:37,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1718626265] [2024-11-28 05:02:37,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:37,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:37,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:02:37,951 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:02:37,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 05:02:38,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:38,463 INFO L256 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:02:38,466 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:02:38,517 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 05:02:38,517 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:02:38,517 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:02:38,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718626265] [2024-11-28 05:02:38,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718626265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:38,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:38,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:02:38,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792845585] [2024-11-28 05:02:38,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:38,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:02:38,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:02:38,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:02:38,519 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:02:38,519 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 05:02:38,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:38,670 INFO L93 Difference]: Finished difference Result 246 states and 278 transitions. [2024-11-28 05:02:38,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:02:38,670 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 05:02:38,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:38,672 INFO L225 Difference]: With dead ends: 246 [2024-11-28 05:02:38,672 INFO L226 Difference]: Without dead ends: 246 [2024-11-28 05:02:38,672 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 05:02:38,673 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 05:02:38,673 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 05:02:38,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-11-28 05:02:38,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2024-11-28 05:02:38,679 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 05:02:38,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 278 transitions. [2024-11-28 05:02:38,681 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 278 transitions. Word has length 95 [2024-11-28 05:02:38,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:38,681 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 278 transitions. [2024-11-28 05:02:38,681 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 05:02:38,681 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 278 transitions. [2024-11-28 05:02:38,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-28 05:02:38,682 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:38,682 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 05:02:38,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-28 05:02:38,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:38,883 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:02:38,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:38,883 INFO L85 PathProgramCache]: Analyzing trace with hash 2034164809, now seen corresponding path program 1 times [2024-11-28 05:02:38,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:02:38,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [763872116] [2024-11-28 05:02:38,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:38,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:38,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:02:38,886 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:02:38,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 05:02:39,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:39,382 INFO L256 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 05:02:39,385 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:02:39,474 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 05:02:39,475 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:02:39,475 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:02:39,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763872116] [2024-11-28 05:02:39,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763872116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:39,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:39,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:02:39,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090096400] [2024-11-28 05:02:39,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:39,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:02:39,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:02:39,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:02:39,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:02:39,478 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 05:02:44,094 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 05:02:48,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:02:52,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:02:52,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:52,647 INFO L93 Difference]: Finished difference Result 248 states and 280 transitions. [2024-11-28 05:02:52,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:02:52,649 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 05:02:52,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:52,650 INFO L225 Difference]: With dead ends: 248 [2024-11-28 05:02:52,651 INFO L226 Difference]: Without dead ends: 248 [2024-11-28 05:02:52,651 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 05:02:52,651 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 204 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s 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, 13.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:02:52,652 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 405 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 2 Unknown, 0 Unchecked, 13.2s Time] [2024-11-28 05:02:52,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-11-28 05:02:52,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 247. [2024-11-28 05:02:52,658 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 05:02:52,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 279 transitions. [2024-11-28 05:02:52,659 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 279 transitions. Word has length 95 [2024-11-28 05:02:52,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:52,660 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 279 transitions. [2024-11-28 05:02:52,660 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 05:02:52,660 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 279 transitions. [2024-11-28 05:02:52,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-28 05:02:52,661 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:52,661 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 05:02:52,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-28 05:02:52,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:52,862 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:02:52,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:52,863 INFO L85 PathProgramCache]: Analyzing trace with hash 2036011851, now seen corresponding path program 1 times [2024-11-28 05:02:52,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:02:52,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [819496362] [2024-11-28 05:02:52,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:52,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:52,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:02:52,865 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:02:52,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 05:02:53,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:53,396 INFO L256 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:02:53,399 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:02:53,453 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 05:02:53,456 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:02:53,456 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:02:53,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819496362] [2024-11-28 05:02:53,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819496362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:53,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:53,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:02:53,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719065105] [2024-11-28 05:02:53,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:53,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:02:53,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:02:53,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:02:53,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:02:53,460 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 05:02:53,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:53,523 INFO L93 Difference]: Finished difference Result 250 states and 283 transitions. [2024-11-28 05:02:53,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:02:53,525 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 05:02:53,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:53,528 INFO L225 Difference]: With dead ends: 250 [2024-11-28 05:02:53,528 INFO L226 Difference]: Without dead ends: 250 [2024-11-28 05:02:53,528 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 05:02:53,529 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 0 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:02:53,529 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 674 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:02:53,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2024-11-28 05:02:53,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2024-11-28 05:02:53,535 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 05:02:53,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 283 transitions. [2024-11-28 05:02:53,537 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 283 transitions. Word has length 95 [2024-11-28 05:02:53,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:53,538 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 283 transitions. [2024-11-28 05:02:53,538 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 05:02:53,538 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 283 transitions. [2024-11-28 05:02:53,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-28 05:02:53,539 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:53,539 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 05:02:53,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-28 05:02:53,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:53,744 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:02:53,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:53,744 INFO L85 PathProgramCache]: Analyzing trace with hash 224602989, now seen corresponding path program 1 times [2024-11-28 05:02:53,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:02:53,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [400010228] [2024-11-28 05:02:53,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:53,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:53,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:02:53,747 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:02:53,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 05:02:54,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:54,317 INFO L256 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 05:02:54,319 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:02:54,403 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 05:02:54,403 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:02:54,597 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 05:02:54,597 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:02:54,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400010228] [2024-11-28 05:02:54,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400010228] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:02:54,598 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:02:54,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-28 05:02:54,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815226492] [2024-11-28 05:02:54,598 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:02:54,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 05:02:54,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:02:54,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 05:02:54,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:02:54,600 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 05:02:54,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:54,875 INFO L93 Difference]: Finished difference Result 261 states and 300 transitions. [2024-11-28 05:02:54,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 05:02:54,877 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 05:02:54,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:54,878 INFO L225 Difference]: With dead ends: 261 [2024-11-28 05:02:54,878 INFO L226 Difference]: Without dead ends: 261 [2024-11-28 05:02:54,879 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 05:02:54,879 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 05:02:54,880 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 05:02:54,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-11-28 05:02:54,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 259. [2024-11-28 05:02:54,886 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 05:02:54,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 298 transitions. [2024-11-28 05:02:54,887 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 298 transitions. Word has length 97 [2024-11-28 05:02:54,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:54,887 INFO L471 AbstractCegarLoop]: Abstraction has 259 states and 298 transitions. [2024-11-28 05:02:54,888 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 05:02:54,888 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 298 transitions. [2024-11-28 05:02:54,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-28 05:02:54,889 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:54,889 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 05:02:54,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-28 05:02:55,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:55,089 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:02:55,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:55,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1248549173, now seen corresponding path program 2 times [2024-11-28 05:02:55,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:02:55,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1591562554] [2024-11-28 05:02:55,092 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:02:55,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:55,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:02:55,094 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:02:55,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 05:02:55,750 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:02:55,750 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:02:55,769 INFO L256 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 05:02:55,772 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:02:55,933 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 05:02:55,933 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:02:56,227 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 05:02:56,228 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:02:56,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591562554] [2024-11-28 05:02:56,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591562554] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:02:56,228 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:02:56,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-28 05:02:56,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826252820] [2024-11-28 05:02:56,229 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:02:56,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 05:02:56,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:02:56,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 05:02:56,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-28 05:02:56,231 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 05:02:56,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:56,681 INFO L93 Difference]: Finished difference Result 267 states and 308 transitions. [2024-11-28 05:02:56,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 05:02:56,682 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 05:02:56,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:56,683 INFO L225 Difference]: With dead ends: 267 [2024-11-28 05:02:56,683 INFO L226 Difference]: Without dead ends: 265 [2024-11-28 05:02:56,684 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 05:02:56,685 INFO L435 NwaCegarLoop]: 227 mSDtfsCounter, 6 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 05:02:56,685 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 05:02:56,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-28 05:02:56,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 263. [2024-11-28 05:02:56,692 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 05:02:56,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 303 transitions. [2024-11-28 05:02:56,694 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 303 transitions. Word has length 101 [2024-11-28 05:02:56,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:56,694 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 303 transitions. [2024-11-28 05:02:56,694 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 05:02:56,694 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 303 transitions. [2024-11-28 05:02:56,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-28 05:02:56,696 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:56,696 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 05:02:56,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-28 05:02:56,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:56,900 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:02:56,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:56,900 INFO L85 PathProgramCache]: Analyzing trace with hash 218888395, now seen corresponding path program 3 times [2024-11-28 05:02:56,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:02:56,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [245545330] [2024-11-28 05:02:56,901 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 05:02:56,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:56,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:02:56,905 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:02:56,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 05:02:57,532 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-28 05:02:57,532 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:02:57,541 INFO L256 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 05:02:57,545 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:02:58,424 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:02:58,425 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:02:58,425 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:02:58,428 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 05:02:58,550 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:02:58,550 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 05:02:58,596 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 05:02:58,596 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:02:58,597 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:02:58,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245545330] [2024-11-28 05:02:58,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245545330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:58,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:58,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 05:02:58,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850014609] [2024-11-28 05:02:58,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:58,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:02:58,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:02:58,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:02:58,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:02:58,598 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 05:02:59,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:59,054 INFO L93 Difference]: Finished difference Result 326 states and 372 transitions. [2024-11-28 05:02:59,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:02:59,055 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 05:02:59,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:59,057 INFO L225 Difference]: With dead ends: 326 [2024-11-28 05:02:59,057 INFO L226 Difference]: Without dead ends: 326 [2024-11-28 05:02:59,057 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 05:02:59,058 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 245 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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 05:02:59,058 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 05:02:59,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-11-28 05:02:59,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 265. [2024-11-28 05:02:59,065 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 05:02:59,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 305 transitions. [2024-11-28 05:02:59,066 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 305 transitions. Word has length 105 [2024-11-28 05:02:59,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:59,066 INFO L471 AbstractCegarLoop]: Abstraction has 265 states and 305 transitions. [2024-11-28 05:02:59,067 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 05:02:59,067 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 305 transitions. [2024-11-28 05:02:59,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 05:02:59,068 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:59,068 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 05:02:59,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-28 05:02:59,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:59,269 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:02:59,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:59,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1928337761, now seen corresponding path program 1 times [2024-11-28 05:02:59,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:02:59,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [177876905] [2024-11-28 05:02:59,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:59,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:59,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:02:59,272 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:02:59,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 05:02:59,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:59,944 INFO L256 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 05:02:59,948 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:03:00,129 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 05:03:00,129 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:03:00,617 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 05:03:00,617 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:03:00,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177876905] [2024-11-28 05:03:00,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177876905] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:03:00,619 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:03:00,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-28 05:03:00,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409984662] [2024-11-28 05:03:00,619 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:03:00,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 05:03:00,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:03:00,621 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 05:03:00,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-28 05:03:00,621 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 05:03:01,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:03:01,389 INFO L93 Difference]: Finished difference Result 277 states and 321 transitions. [2024-11-28 05:03:01,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 05:03:01,390 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 05:03:01,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:03:01,392 INFO L225 Difference]: With dead ends: 277 [2024-11-28 05:03:01,392 INFO L226 Difference]: Without dead ends: 273 [2024-11-28 05:03:01,392 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-11-28 05:03:01,393 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, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:03:01,393 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1790 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 05:03:01,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-11-28 05:03:01,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 271. [2024-11-28 05:03:01,400 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 05:03:01,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 315 transitions. [2024-11-28 05:03:01,401 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 315 transitions. Word has length 139 [2024-11-28 05:03:01,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:03:01,402 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 315 transitions. [2024-11-28 05:03:01,403 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 05:03:01,403 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 315 transitions. [2024-11-28 05:03:01,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-28 05:03:01,405 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:03:01,405 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 05:03:01,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-28 05:03:01,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:03:01,606 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:03:01,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:03:01,607 INFO L85 PathProgramCache]: Analyzing trace with hash -416338337, now seen corresponding path program 2 times [2024-11-28 05:03:01,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:03:01,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1792086782] [2024-11-28 05:03:01,607 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:03:01,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:03:01,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:03:01,610 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:03:01,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 05:03:02,386 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:03:02,386 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:03:02,405 INFO L256 TraceCheckSpWp]: Trace formula consists of 725 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 05:03:02,408 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:03:02,685 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 05:03:02,685 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:03:03,400 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 05:03:03,401 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:03:03,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792086782] [2024-11-28 05:03:03,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792086782] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:03:03,401 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:03:03,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2024-11-28 05:03:03,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89185314] [2024-11-28 05:03:03,401 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:03:03,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 05:03:03,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:03:03,403 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 05:03:03,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2024-11-28 05:03:03,403 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 05:03:05,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:03:05,252 INFO L93 Difference]: Finished difference Result 285 states and 334 transitions. [2024-11-28 05:03:05,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-28 05:03:05,253 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 05:03:05,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:03:05,254 INFO L225 Difference]: With dead ends: 285 [2024-11-28 05:03:05,254 INFO L226 Difference]: Without dead ends: 279 [2024-11-28 05:03:05,255 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 05:03:05,255 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 05:03:05,255 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 05:03:05,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2024-11-28 05:03:05,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279. [2024-11-28 05:03:05,262 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 05:03:05,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 322 transitions. [2024-11-28 05:03:05,263 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 322 transitions. Word has length 145 [2024-11-28 05:03:05,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:03:05,264 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 322 transitions. [2024-11-28 05:03:05,264 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 05:03:05,264 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 322 transitions. [2024-11-28 05:03:05,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-28 05:03:05,266 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:03:05,266 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 05:03:05,288 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-28 05:03:05,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:03:05,467 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 05:03:05,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:03:05,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1489055137, now seen corresponding path program 3 times [2024-11-28 05:03:05,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:03:05,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1725554660] [2024-11-28 05:03:05,468 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 05:03:05,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:03:05,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:03:05,470 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:03:05,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c33269a-0b84-4f30-84dd-fe03b9dbdb7e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process