./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:28:20,484 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:28:20,570 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-13 15:28:20,579 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:28:20,580 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:28:20,622 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:28:20,622 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:28:20,623 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:28:20,626 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:28:20,626 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:28:20,626 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:28:20,626 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:28:20,626 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:28:20,627 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:28:20,627 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:28:20,627 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:28:20,627 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:28:20,627 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:28:20,627 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:28:20,627 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:28:20,627 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:28:20,627 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:28:20,628 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 15:28:20,628 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 15:28:20,628 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:28:20,628 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:28:20,628 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 15:28:20,628 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:28:20,628 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:28:20,628 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:28:20,628 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:28:20,629 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:28:20,629 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:28:20,630 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:28:20,630 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:28:20,631 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:28:20,631 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:28:20,631 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:28:20,631 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:28:20,631 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:28:20,631 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:28:20,631 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:28:20,631 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:28:20,631 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:28:20,631 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:28:20,632 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_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f [2024-11-13 15:28:20,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:28:20,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:28:20,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:28:20,974 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:28:20,974 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:28:20,975 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-1.i Unable to find full path for "g++" [2024-11-13 15:28:22,947 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:28:23,345 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:28:23,346 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-1.i [2024-11-13 15:28:23,375 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/data/dd848c96b/789469efcf13410580540fe7e0fba807/FLAGb894c5171 [2024-11-13 15:28:23,396 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/data/dd848c96b/789469efcf13410580540fe7e0fba807 [2024-11-13 15:28:23,398 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:28:23,401 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:28:23,402 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:28:23,403 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:28:23,407 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:28:23,408 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:28:23" (1/1) ... [2024-11-13 15:28:23,410 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d87b066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:23, skipping insertion in model container [2024-11-13 15:28:23,411 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:28:23" (1/1) ... [2024-11-13 15:28:23,465 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:28:23,970 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:24,015 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:24,019 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:24,024 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:24,033 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:24,084 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:24,085 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:24,089 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:24,090 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:24,096 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:24,098 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:24,099 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:24,104 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:24,109 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:24,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:28:24,131 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-11-13 15:28:24,131 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1e4c50e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:24, skipping insertion in model container [2024-11-13 15:28:24,131 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:28:24,132 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-13 15:28:24,134 INFO L158 Benchmark]: Toolchain (without parser) took 732.64ms. Allocated memory is still 142.6MB. Free memory was 115.2MB in the beginning and 96.1MB in the end (delta: 19.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 15:28:24,134 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:28:24,137 INFO L158 Benchmark]: CACSL2BoogieTranslator took 729.57ms. Allocated memory is still 142.6MB. Free memory was 115.0MB in the beginning and 96.1MB in the end (delta: 18.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 15:28:24,138 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 729.57ms. Allocated memory is still 142.6MB. Free memory was 115.0MB in the beginning and 96.1MB in the end (delta: 18.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 750]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:28:27,296 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:28:27,425 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2024-11-13 15:28:27,435 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:28:27,435 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:28:27,473 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:28:27,473 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:28:27,474 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:28:27,474 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:28:27,474 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:28:27,474 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:28:27,474 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:28:27,475 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:28:27,476 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:28:27,476 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:28:27,478 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:28:27,478 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:28:27,478 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:28:27,478 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:28:27,478 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:28:27,479 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:28:27,479 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:28:27,479 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 15:28:27,479 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 15:28:27,479 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:28:27,480 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:28:27,480 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 15:28:27,480 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 15:28:27,480 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:28:27,480 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 15:28:27,480 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:28:27,481 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:28:27,481 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:28:27,481 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:28:27,481 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:28:27,482 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:28:27,482 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:28:27,482 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:28:27,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:28:27,482 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:28:27,483 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:28:27,483 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 15:28:27,483 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 15:28:27,483 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:28:27,483 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:28:27,483 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:28:27,483 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:28:27,483 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_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f [2024-11-13 15:28:27,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:28:27,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:28:27,863 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:28:27,866 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:28:27,866 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:28:27,867 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-1.i Unable to find full path for "g++" [2024-11-13 15:28:30,123 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:28:30,531 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:28:30,534 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-1.i [2024-11-13 15:28:30,556 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/data/37d1eee19/c52a38a20100463eaa1ae0b594a4c691/FLAGc78b641ee [2024-11-13 15:28:30,714 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/data/37d1eee19/c52a38a20100463eaa1ae0b594a4c691 [2024-11-13 15:28:30,716 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:28:30,718 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:28:30,719 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:28:30,721 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:28:30,725 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:28:30,726 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:28:30" (1/1) ... [2024-11-13 15:28:30,727 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62ca651e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:30, skipping insertion in model container [2024-11-13 15:28:30,729 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:28:30" (1/1) ... [2024-11-13 15:28:30,781 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:28:31,211 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:31,260 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:31,267 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:31,274 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:31,290 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:31,335 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:31,336 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:31,339 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:31,340 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:31,343 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:31,347 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:31,350 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:31,356 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:31,362 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:31,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:28:31,390 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-13 15:28:31,409 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:28:31,446 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:31,482 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:31,484 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:31,487 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:31,493 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:31,519 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:31,520 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:31,522 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:31,523 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:31,525 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:31,527 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:31,527 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:31,528 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:31,536 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:28:31,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:28:31,544 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:28:31,697 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:28:31,744 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:28:31,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:31 WrapperNode [2024-11-13 15:28:31,744 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:28:31,745 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:28:31,745 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:28:31,745 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:28:31,751 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:31" (1/1) ... [2024-11-13 15:28:31,783 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:31" (1/1) ... [2024-11-13 15:28:31,831 INFO L138 Inliner]: procedures = 180, calls = 274, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 996 [2024-11-13 15:28:31,831 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:28:31,831 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:28:31,832 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:28:31,832 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:28:31,845 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:31" (1/1) ... [2024-11-13 15:28:31,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:31" (1/1) ... [2024-11-13 15:28:31,863 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:31" (1/1) ... [2024-11-13 15:28:31,966 INFO L175 MemorySlicer]: Split 254 memory accesses to 3 slices as follows [2, 218, 34]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 54 writes are split as follows [0, 50, 4]. [2024-11-13 15:28:31,966 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:31" (1/1) ... [2024-11-13 15:28:31,966 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:31" (1/1) ... [2024-11-13 15:28:32,042 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:31" (1/1) ... [2024-11-13 15:28:32,060 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:31" (1/1) ... [2024-11-13 15:28:32,067 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:31" (1/1) ... [2024-11-13 15:28:32,073 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:31" (1/1) ... [2024-11-13 15:28:32,088 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:28:32,092 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:28:32,092 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:28:32,092 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:28:32,093 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:31" (1/1) ... [2024-11-13 15:28:32,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:28:32,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:28:32,128 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:28:32,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:28:32,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-13 15:28:32,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-13 15:28:32,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-13 15:28:32,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-13 15:28:32,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-13 15:28:32,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-13 15:28:32,164 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 15:28:32,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 15:28:32,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-13 15:28:32,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-13 15:28:32,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-13 15:28:32,165 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-13 15:28:32,165 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-13 15:28:32,165 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-13 15:28:32,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 15:28:32,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:28:32,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-13 15:28:32,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-13 15:28:32,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-13 15:28:32,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 15:28:32,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-13 15:28:32,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-13 15:28:32,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-13 15:28:32,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-13 15:28:32,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-13 15:28:32,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-13 15:28:32,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 15:28:32,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 15:28:32,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-13 15:28:32,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-13 15:28:32,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:28:32,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:28:32,401 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:28:32,403 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:28:42,503 INFO L? ?]: Removed 127 outVars from TransFormulas that were not future-live. [2024-11-13 15:28:42,503 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:28:42,523 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:28:42,523 INFO L316 CfgBuilder]: Removed 63 assume(true) statements. [2024-11-13 15:28:42,523 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:28:42 BoogieIcfgContainer [2024-11-13 15:28:42,523 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:28:42,528 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:28:42,528 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:28:42,533 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:28:42,533 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:28:30" (1/3) ... [2024-11-13 15:28:42,534 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f4c8564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:28:42, skipping insertion in model container [2024-11-13 15:28:42,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:31" (2/3) ... [2024-11-13 15:28:42,535 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f4c8564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:28:42, skipping insertion in model container [2024-11-13 15:28:42,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:28:42" (3/3) ... [2024-11-13 15:28:42,536 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_nondet_test3-1.i [2024-11-13 15:28:42,555 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:28:42,558 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_FNV_nondet_test3-1.i that has 5 procedures, 209 locations, 1 initial locations, 38 loop locations, and 2 error locations. [2024-11-13 15:28:42,600 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:28:42,612 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;@19d2d1e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:28:42,613 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 15:28:42,617 INFO L276 IsEmpty]: Start isEmpty. Operand has 201 states, 191 states have (on average 1.6649214659685865) internal successors, (318), 194 states have internal predecessors, (318), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 15:28:42,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-13 15:28:42,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:28:42,624 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-13 15:28:42,624 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:28:42,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:28:42,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1665168, now seen corresponding path program 1 times [2024-11-13 15:28:42,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:28:42,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [912707384] [2024-11-13 15:28:42,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:28:42,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:28:42,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:28:42,645 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:28:42,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 15:28:42,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:28:42,854 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 15:28:42,860 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:28:42,976 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 [2024-11-13 15:28:42,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:28:42,984 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:28:42,985 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:28:42,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912707384] [2024-11-13 15:28:42,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [912707384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:28:42,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:28:42,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:28:42,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096487972] [2024-11-13 15:28:42,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:28:42,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:28:42,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:28:43,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:28:43,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-13 15:28:43,024 INFO L87 Difference]: Start difference. First operand has 201 states, 191 states have (on average 1.6649214659685865) internal successors, (318), 194 states have internal predecessors, (318), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:28:47,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 15:28:48,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 15:28:48,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:28:48,742 INFO L93 Difference]: Finished difference Result 295 states and 386 transitions. [2024-11-13 15:28:48,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:28:48,752 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 [2024-11-13 15:28:48,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:28:48,760 INFO L225 Difference]: With dead ends: 295 [2024-11-13 15:28:48,760 INFO L226 Difference]: Without dead ends: 292 [2024-11-13 15:28:48,762 INFO L431 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 [2024-11-13 15:28:48,765 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 120 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 387 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:28:48,766 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 486 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 1 Unknown, 387 Unchecked, 5.7s Time] [2024-11-13 15:28:48,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2024-11-13 15:28:48,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 198. [2024-11-13 15:28:48,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 189 states have (on average 1.2962962962962963) internal successors, (245), 191 states have internal predecessors, (245), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 15:28:48,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 255 transitions. [2024-11-13 15:28:48,826 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 255 transitions. Word has length 4 [2024-11-13 15:28:48,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:28:48,827 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 255 transitions. [2024-11-13 15:28:48,827 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) [2024-11-13 15:28:48,827 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 255 transitions. [2024-11-13 15:28:48,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-13 15:28:48,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:28:48,830 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:28:48,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 15:28:49,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:28:49,035 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:28:49,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:28:49,035 INFO L85 PathProgramCache]: Analyzing trace with hash -944262572, now seen corresponding path program 1 times [2024-11-13 15:28:49,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:28:49,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [38146197] [2024-11-13 15:28:49,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:28:49,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:28:49,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:28:49,039 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:28:49,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 15:28:49,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:28:49,245 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 15:28:49,248 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:28:49,506 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 [2024-11-13 15:28:49,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:28:49,507 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:28:49,508 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:28:49,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38146197] [2024-11-13 15:28:49,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [38146197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:28:49,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:28:49,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:28:49,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200964040] [2024-11-13 15:28:49,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:28:49,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:28:49,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:28:49,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:28:49,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-13 15:28:49,511 INFO L87 Difference]: Start difference. First operand 198 states and 255 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:28:53,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 15:28:54,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:28:54,270 INFO L93 Difference]: Finished difference Result 293 states and 382 transitions. [2024-11-13 15:28:54,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:28:54,277 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-13 15:28:54,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:28:54,280 INFO L225 Difference]: With dead ends: 293 [2024-11-13 15:28:54,282 INFO L226 Difference]: Without dead ends: 291 [2024-11-13 15:28:54,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-13 15:28:54,284 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 112 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 381 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:28:54,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 483 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 1 Unknown, 381 Unchecked, 4.7s Time] [2024-11-13 15:28:54,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-11-13 15:28:54,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 267. [2024-11-13 15:28:54,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 256 states have (on average 1.3046875) internal successors, (334), 258 states have internal predecessors, (334), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-13 15:28:54,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 348 transitions. [2024-11-13 15:28:54,316 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 348 transitions. Word has length 12 [2024-11-13 15:28:54,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:28:54,316 INFO L471 AbstractCegarLoop]: Abstraction has 267 states and 348 transitions. [2024-11-13 15:28:54,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:28:54,317 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 348 transitions. [2024-11-13 15:28:54,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-13 15:28:54,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:28:54,317 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:28:54,332 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 15:28:54,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:28:54,519 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:28:54,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:28:54,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1595338326, now seen corresponding path program 1 times [2024-11-13 15:28:54,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:28:54,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [168886188] [2024-11-13 15:28:54,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:28:54,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:28:54,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:28:54,525 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:28:54,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 15:28:54,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:28:54,770 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:28:54,773 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:28:54,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:28:54,971 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:28:54,971 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:28:54,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168886188] [2024-11-13 15:28:54,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [168886188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:28:54,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:28:54,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:28:54,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41661825] [2024-11-13 15:28:54,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:28:54,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:28:54,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:28:54,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:28:54,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:28:54,974 INFO L87 Difference]: Start difference. First operand 267 states and 348 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:28:59,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 15:29:01,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 15:29:02,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:29:02,157 INFO L93 Difference]: Finished difference Result 357 states and 464 transitions. [2024-11-13 15:29:02,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:29:02,159 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-13 15:29:02,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:29:02,161 INFO L225 Difference]: With dead ends: 357 [2024-11-13 15:29:02,161 INFO L226 Difference]: Without dead ends: 355 [2024-11-13 15:29:02,161 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:29:02,162 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 136 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:29:02,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 684 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 76 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2024-11-13 15:29:02,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-11-13 15:29:02,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 354. [2024-11-13 15:29:02,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 343 states have (on average 1.3032069970845481) internal successors, (447), 346 states have internal predecessors, (447), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-13 15:29:02,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 461 transitions. [2024-11-13 15:29:02,180 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 461 transitions. Word has length 15 [2024-11-13 15:29:02,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:29:02,181 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 461 transitions. [2024-11-13 15:29:02,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:29:02,181 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 461 transitions. [2024-11-13 15:29:02,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-13 15:29:02,184 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:29:02,184 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:29:02,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-13 15:29:02,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:29:02,385 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:29:02,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:29:02,385 INFO L85 PathProgramCache]: Analyzing trace with hash -729123507, now seen corresponding path program 1 times [2024-11-13 15:29:02,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:29:02,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1876687836] [2024-11-13 15:29:02,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:29:02,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:29:02,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:29:02,388 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:29:02,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 15:29:02,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:29:02,616 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:29:02,618 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:29:02,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:29:02,650 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:29:02,650 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:29:02,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876687836] [2024-11-13 15:29:02,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876687836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:29:02,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:29:02,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:29:02,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443992241] [2024-11-13 15:29:02,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:29:02,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:29:02,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:29:02,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:29:02,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:29:02,652 INFO L87 Difference]: Start difference. First operand 354 states and 461 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:29:02,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:29:02,801 INFO L93 Difference]: Finished difference Result 414 states and 521 transitions. [2024-11-13 15:29:02,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:29:02,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-13 15:29:02,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:29:02,804 INFO L225 Difference]: With dead ends: 414 [2024-11-13 15:29:02,804 INFO L226 Difference]: Without dead ends: 414 [2024-11-13 15:29:02,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:29:02,805 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 9 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 455 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 [2024-11-13 15:29:02,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 455 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:29:02,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2024-11-13 15:29:02,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 414. [2024-11-13 15:29:02,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 403 states have (on average 1.2580645161290323) internal successors, (507), 406 states have internal predecessors, (507), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-13 15:29:02,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 521 transitions. [2024-11-13 15:29:02,821 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 521 transitions. Word has length 51 [2024-11-13 15:29:02,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:29:02,821 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 521 transitions. [2024-11-13 15:29:02,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:29:02,821 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 521 transitions. [2024-11-13 15:29:02,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-13 15:29:02,823 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:29:02,823 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:29:02,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 15:29:03,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:29:03,024 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:29:03,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:29:03,024 INFO L85 PathProgramCache]: Analyzing trace with hash -553611439, now seen corresponding path program 1 times [2024-11-13 15:29:03,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:29:03,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [923248056] [2024-11-13 15:29:03,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:29:03,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:29:03,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:29:03,027 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:29:03,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 15:29:03,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:29:03,251 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:29:03,254 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:29:03,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:29:03,299 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:29:03,299 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:29:03,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923248056] [2024-11-13 15:29:03,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [923248056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:29:03,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:29:03,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:29:03,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727114997] [2024-11-13 15:29:03,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:29:03,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:29:03,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:29:03,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:29:03,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:29:03,301 INFO L87 Difference]: Start difference. First operand 414 states and 521 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:29:03,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:29:03,462 INFO L93 Difference]: Finished difference Result 363 states and 437 transitions. [2024-11-13 15:29:03,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:29:03,463 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-13 15:29:03,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:29:03,465 INFO L225 Difference]: With dead ends: 363 [2024-11-13 15:29:03,465 INFO L226 Difference]: Without dead ends: 363 [2024-11-13 15:29:03,465 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:29:03,466 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 32 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:29:03,466 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 652 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:29:03,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-11-13 15:29:03,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2024-11-13 15:29:03,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 352 states have (on average 1.2017045454545454) internal successors, (423), 355 states have internal predecessors, (423), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-13 15:29:03,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 437 transitions. [2024-11-13 15:29:03,484 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 437 transitions. Word has length 51 [2024-11-13 15:29:03,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:29:03,484 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 437 transitions. [2024-11-13 15:29:03,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:29:03,485 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 437 transitions. [2024-11-13 15:29:03,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-13 15:29:03,486 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:29:03,486 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:29:03,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 15:29:03,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:29:03,687 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:29:03,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:29:03,687 INFO L85 PathProgramCache]: Analyzing trace with hash -76395133, now seen corresponding path program 1 times [2024-11-13 15:29:03,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:29:03,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [479175190] [2024-11-13 15:29:03,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:29:03,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:29:03,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:29:03,689 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:29:03,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 15:29:03,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:29:03,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 15:29:03,902 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:29:03,918 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-13 15:29:03,919 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-13 15:29:03,920 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-13 15:29:03,927 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 [2024-11-13 15:29:04,053 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 15:29:04,055 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 [2024-11-13 15:29:04,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:29:04,162 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:29:04,163 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:29:04,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479175190] [2024-11-13 15:29:04,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479175190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:29:04,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:29:04,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:29:04,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142876432] [2024-11-13 15:29:04,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:29:04,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:29:04,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:29:04,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:29:04,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:29:04,165 INFO L87 Difference]: Start difference. First operand 363 states and 437 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:29:04,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:29:04,939 INFO L93 Difference]: Finished difference Result 364 states and 447 transitions. [2024-11-13 15:29:04,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:29:04,943 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-13 15:29:04,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:29:04,944 INFO L225 Difference]: With dead ends: 364 [2024-11-13 15:29:04,944 INFO L226 Difference]: Without dead ends: 361 [2024-11-13 15:29:04,945 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:29:04,945 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 108 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:29:04,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 1003 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 15:29:04,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-13 15:29:04,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 314. [2024-11-13 15:29:04,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 304 states have (on average 1.2236842105263157) internal successors, (372), 307 states have internal predecessors, (372), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 15:29:04,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 384 transitions. [2024-11-13 15:29:04,966 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 384 transitions. Word has length 51 [2024-11-13 15:29:04,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:29:04,967 INFO L471 AbstractCegarLoop]: Abstraction has 314 states and 384 transitions. [2024-11-13 15:29:04,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:29:04,967 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 384 transitions. [2024-11-13 15:29:04,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-13 15:29:04,969 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:29:04,969 INFO L215 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] [2024-11-13 15:29:04,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 15:29:05,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:29:05,170 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:29:05,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:29:05,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1507457279, now seen corresponding path program 1 times [2024-11-13 15:29:05,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:29:05,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [789808367] [2024-11-13 15:29:05,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:29:05,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:29:05,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:29:05,178 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:29:05,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 15:29:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:29:05,699 INFO L255 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:29:05,705 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:29:05,736 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:29:05,736 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:29:05,736 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:29:05,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789808367] [2024-11-13 15:29:05,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789808367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:29:05,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:29:05,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:29:05,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610457246] [2024-11-13 15:29:05,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:29:05,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:29:05,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:29:05,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:29:05,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:29:05,741 INFO L87 Difference]: Start difference. First operand 314 states and 384 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (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) [2024-11-13 15:29:05,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:29:05,894 INFO L93 Difference]: Finished difference Result 354 states and 424 transitions. [2024-11-13 15:29:05,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:29:05,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (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 83 [2024-11-13 15:29:05,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:29:05,896 INFO L225 Difference]: With dead ends: 354 [2024-11-13 15:29:05,897 INFO L226 Difference]: Without dead ends: 354 [2024-11-13 15:29:05,897 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:29:05,897 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 8 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 433 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 [2024-11-13 15:29:05,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 433 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:29:05,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-13 15:29:05,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2024-11-13 15:29:05,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 344 states have (on average 1.197674418604651) internal successors, (412), 347 states have internal predecessors, (412), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 15:29:05,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 424 transitions. [2024-11-13 15:29:05,908 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 424 transitions. Word has length 83 [2024-11-13 15:29:05,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:29:05,908 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 424 transitions. [2024-11-13 15:29:05,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (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) [2024-11-13 15:29:05,909 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 424 transitions. [2024-11-13 15:29:05,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-13 15:29:05,910 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:29:05,910 INFO L215 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] [2024-11-13 15:29:05,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-13 15:29:06,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:29:06,114 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:29:06,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:29:06,115 INFO L85 PathProgramCache]: Analyzing trace with hash -2068157057, now seen corresponding path program 1 times [2024-11-13 15:29:06,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:29:06,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [418674878] [2024-11-13 15:29:06,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:29:06,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:29:06,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:29:06,118 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:29:06,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 15:29:06,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:29:06,613 INFO L255 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:29:06,616 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:29:07,012 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:29:07,012 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:29:07,012 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:29:07,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418674878] [2024-11-13 15:29:07,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418674878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:29:07,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:29:07,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:29:07,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810391526] [2024-11-13 15:29:07,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:29:07,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:29:07,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:29:07,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:29:07,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:29:07,014 INFO L87 Difference]: Start difference. First operand 354 states and 424 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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) [2024-11-13 15:29:11,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 15:29:15,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 15:29:17,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 15:29:18,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:29:18,115 INFO L93 Difference]: Finished difference Result 446 states and 534 transitions. [2024-11-13 15:29:18,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:29:18,116 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 83 [2024-11-13 15:29:18,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:29:18,118 INFO L225 Difference]: With dead ends: 446 [2024-11-13 15:29:18,118 INFO L226 Difference]: Without dead ends: 446 [2024-11-13 15:29:18,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:29:18,119 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 452 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:29:18,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 433 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 81 Invalid, 2 Unknown, 0 Unchecked, 11.1s Time] [2024-11-13 15:29:18,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2024-11-13 15:29:18,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 443. [2024-11-13 15:29:18,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 432 states have (on average 1.1944444444444444) internal successors, (516), 436 states have internal predecessors, (516), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-13 15:29:18,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 530 transitions. [2024-11-13 15:29:18,133 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 530 transitions. Word has length 83 [2024-11-13 15:29:18,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:29:18,134 INFO L471 AbstractCegarLoop]: Abstraction has 443 states and 530 transitions. [2024-11-13 15:29:18,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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) [2024-11-13 15:29:18,134 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 530 transitions. [2024-11-13 15:29:18,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-13 15:29:18,135 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:29:18,135 INFO L215 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] [2024-11-13 15:29:18,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-13 15:29:18,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:29:18,336 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:29:18,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:29:18,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1075191989, now seen corresponding path program 1 times [2024-11-13 15:29:18,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:29:18,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1663915038] [2024-11-13 15:29:18,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:29:18,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:29:18,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:29:18,339 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:29:18,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 15:29:18,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:29:18,852 INFO L255 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:29:18,855 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:29:18,897 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:29:18,897 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:29:18,897 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:29:18,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663915038] [2024-11-13 15:29:18,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663915038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:29:18,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:29:18,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:29:18,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556082809] [2024-11-13 15:29:18,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:29:18,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:29:18,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:29:18,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:29:18,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:29:18,899 INFO L87 Difference]: Start difference. First operand 443 states and 530 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 15:29:19,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:29:19,037 INFO L93 Difference]: Finished difference Result 409 states and 474 transitions. [2024-11-13 15:29:19,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:29:19,038 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 86 [2024-11-13 15:29:19,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:29:19,039 INFO L225 Difference]: With dead ends: 409 [2024-11-13 15:29:19,039 INFO L226 Difference]: Without dead ends: 409 [2024-11-13 15:29:19,040 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:29:19,041 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 32 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:29:19,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 619 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:29:19,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-11-13 15:29:19,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2024-11-13 15:29:19,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 398 states have (on average 1.1557788944723617) internal successors, (460), 402 states have internal predecessors, (460), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-13 15:29:19,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 474 transitions. [2024-11-13 15:29:19,054 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 474 transitions. Word has length 86 [2024-11-13 15:29:19,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:29:19,054 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 474 transitions. [2024-11-13 15:29:19,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 15:29:19,054 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 474 transitions. [2024-11-13 15:29:19,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-13 15:29:19,056 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:29:19,056 INFO L215 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] [2024-11-13 15:29:19,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-13 15:29:19,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:29:19,257 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:29:19,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:29:19,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1650725763, now seen corresponding path program 1 times [2024-11-13 15:29:19,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:29:19,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [305367520] [2024-11-13 15:29:19,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:29:19,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:29:19,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:29:19,259 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:29:19,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 15:29:19,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:29:19,805 INFO L255 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:29:19,808 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:29:19,851 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 15:29:19,852 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:29:19,853 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:29:19,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [305367520] [2024-11-13 15:29:19,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [305367520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:29:19,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:29:19,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:29:19,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997451211] [2024-11-13 15:29:19,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:29:19,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:29:19,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:29:19,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:29:19,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:29:19,855 INFO L87 Difference]: Start difference. First operand 409 states and 474 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 15:29:19,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:29:19,916 INFO L93 Difference]: Finished difference Result 412 states and 478 transitions. [2024-11-13 15:29:19,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:29:19,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 86 [2024-11-13 15:29:19,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:29:19,921 INFO L225 Difference]: With dead ends: 412 [2024-11-13 15:29:19,921 INFO L226 Difference]: Without dead ends: 412 [2024-11-13 15:29:19,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:29:19,922 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 0 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:29:19,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 686 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:29:19,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-11-13 15:29:19,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2024-11-13 15:29:19,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 400 states have (on average 1.1575) internal successors, (463), 405 states have internal predecessors, (463), 7 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-13 15:29:19,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 478 transitions. [2024-11-13 15:29:19,935 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 478 transitions. Word has length 86 [2024-11-13 15:29:19,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:29:19,936 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 478 transitions. [2024-11-13 15:29:19,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 15:29:19,936 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 478 transitions. [2024-11-13 15:29:19,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-13 15:29:19,937 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:29:19,937 INFO L215 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] [2024-11-13 15:29:19,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-13 15:29:20,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:29:20,138 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:29:20,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:29:20,138 INFO L85 PathProgramCache]: Analyzing trace with hash -358743777, now seen corresponding path program 1 times [2024-11-13 15:29:20,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:29:20,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [919642165] [2024-11-13 15:29:20,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:29:20,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:29:20,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:29:20,140 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:29:20,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 15:29:20,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:29:20,757 INFO L255 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:29:20,761 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:29:20,851 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 15:29:20,851 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:29:21,050 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 15:29:21,051 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:29:21,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919642165] [2024-11-13 15:29:21,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919642165] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:29:21,051 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:29:21,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-13 15:29:21,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630131819] [2024-11-13 15:29:21,052 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 15:29:21,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 15:29:21,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:29:21,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 15:29:21,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:29:21,053 INFO L87 Difference]: Start difference. First operand 412 states and 478 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 15:29:21,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:29:21,267 INFO L93 Difference]: Finished difference Result 423 states and 495 transitions. [2024-11-13 15:29:21,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 15:29:21,271 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 88 [2024-11-13 15:29:21,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:29:21,273 INFO L225 Difference]: With dead ends: 423 [2024-11-13 15:29:21,274 INFO L226 Difference]: Without dead ends: 423 [2024-11-13 15:29:21,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:29:21,275 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 5 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:29:21,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 910 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:29:21,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-11-13 15:29:21,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 421. [2024-11-13 15:29:21,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 408 states have (on average 1.1691176470588236) internal successors, (477), 413 states have internal predecessors, (477), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-13 15:29:21,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 493 transitions. [2024-11-13 15:29:21,288 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 493 transitions. Word has length 88 [2024-11-13 15:29:21,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:29:21,289 INFO L471 AbstractCegarLoop]: Abstraction has 421 states and 493 transitions. [2024-11-13 15:29:21,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 15:29:21,290 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 493 transitions. [2024-11-13 15:29:21,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-13 15:29:21,291 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:29:21,292 INFO L215 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] [2024-11-13 15:29:21,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-13 15:29:21,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:29:21,492 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:29:21,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:29:21,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1077822461, now seen corresponding path program 2 times [2024-11-13 15:29:21,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:29:21,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1031170279] [2024-11-13 15:29:21,494 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 15:29:21,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:29:21,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:29:21,496 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:29:21,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-13 15:29:22,170 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 15:29:22,170 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:29:22,190 INFO L255 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 15:29:22,194 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:29:22,948 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-13 15:29:22,949 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-13 15:29:22,950 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-13 15:29:22,955 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 [2024-11-13 15:29:23,081 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 15:29:23,081 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 [2024-11-13 15:29:23,138 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-13 15:29:23,138 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:29:23,138 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:29:23,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031170279] [2024-11-13 15:29:23,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031170279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:29:23,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:29:23,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:29:23,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830180457] [2024-11-13 15:29:23,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:29:23,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:29:23,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:29:23,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:29:23,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:29:23,140 INFO L87 Difference]: Start difference. First operand 421 states and 493 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 15:29:23,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:29:23,544 INFO L93 Difference]: Finished difference Result 531 states and 624 transitions. [2024-11-13 15:29:23,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:29:23,545 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 92 [2024-11-13 15:29:23,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:29:23,548 INFO L225 Difference]: With dead ends: 531 [2024-11-13 15:29:23,548 INFO L226 Difference]: Without dead ends: 531 [2024-11-13 15:29:23,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:29:23,549 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 382 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:29:23,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 674 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 15:29:23,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-11-13 15:29:23,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 423. [2024-11-13 15:29:23,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 410 states have (on average 1.1682926829268292) internal successors, (479), 415 states have internal predecessors, (479), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-13 15:29:23,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 495 transitions. [2024-11-13 15:29:23,563 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 495 transitions. Word has length 92 [2024-11-13 15:29:23,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:29:23,564 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 495 transitions. [2024-11-13 15:29:23,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 15:29:23,564 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 495 transitions. [2024-11-13 15:29:23,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-13 15:29:23,565 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:29:23,566 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:29:23,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-13 15:29:23,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:29:23,766 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:29:23,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:29:23,767 INFO L85 PathProgramCache]: Analyzing trace with hash 870232594, now seen corresponding path program 1 times [2024-11-13 15:29:23,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:29:23,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1126820338] [2024-11-13 15:29:23,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:29:23,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:29:23,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:29:23,770 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:29:23,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-13 15:29:24,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:29:24,424 INFO L255 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 15:29:24,431 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:29:24,577 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 15:29:24,577 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:29:24,857 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 15:29:24,858 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:29:24,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126820338] [2024-11-13 15:29:24,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1126820338] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:29:24,858 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:29:24,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-13 15:29:24,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277173587] [2024-11-13 15:29:24,858 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 15:29:24,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 15:29:24,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:29:24,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 15:29:24,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-13 15:29:24,860 INFO L87 Difference]: Start difference. First operand 423 states and 495 transitions. Second operand has 10 states, 10 states have (on average 13.7) internal successors, (137), 10 states have internal predecessors, (137), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 15:29:25,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:29:25,333 INFO L93 Difference]: Finished difference Result 431 states and 505 transitions. [2024-11-13 15:29:25,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:29:25,334 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.7) internal successors, (137), 10 states have internal predecessors, (137), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 136 [2024-11-13 15:29:25,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:29:25,336 INFO L225 Difference]: With dead ends: 431 [2024-11-13 15:29:25,336 INFO L226 Difference]: Without dead ends: 429 [2024-11-13 15:29:25,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2024-11-13 15:29:25,337 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 6 mSDsluCounter, 913 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1144 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:29:25,338 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1144 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 15:29:25,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2024-11-13 15:29:25,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 427. [2024-11-13 15:29:25,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 414 states have (on average 1.171497584541063) internal successors, (485), 419 states have internal predecessors, (485), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-13 15:29:25,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 500 transitions. [2024-11-13 15:29:25,352 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 500 transitions. Word has length 136 [2024-11-13 15:29:25,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:29:25,353 INFO L471 AbstractCegarLoop]: Abstraction has 427 states and 500 transitions. [2024-11-13 15:29:25,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.7) internal successors, (137), 10 states have internal predecessors, (137), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 15:29:25,353 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 500 transitions. [2024-11-13 15:29:25,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 15:29:25,355 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:29:25,355 INFO L215 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:29:25,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-13 15:29:25,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:29:25,556 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:29:25,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:29:25,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1721033710, now seen corresponding path program 2 times [2024-11-13 15:29:25,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:29:25,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [75428142] [2024-11-13 15:29:25,558 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 15:29:25,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:29:25,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:29:25,560 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:29:25,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-13 15:29:26,280 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 15:29:26,280 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:29:26,296 INFO L255 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 15:29:26,299 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:29:26,480 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-13 15:29:26,481 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:29:26,910 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-13 15:29:26,911 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:29:26,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75428142] [2024-11-13 15:29:26,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [75428142] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:29:26,911 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:29:26,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-13 15:29:26,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124460053] [2024-11-13 15:29:26,911 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 15:29:26,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 15:29:26,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:29:26,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 15:29:26,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-13 15:29:26,913 INFO L87 Difference]: Start difference. First operand 427 states and 500 transitions. Second operand has 14 states, 14 states have (on average 9.785714285714286) internal successors, (137), 14 states have internal predecessors, (137), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 15:29:27,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:29:27,596 INFO L93 Difference]: Finished difference Result 439 states and 516 transitions. [2024-11-13 15:29:27,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-13 15:29:27,597 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), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 140 [2024-11-13 15:29:27,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:29:27,599 INFO L225 Difference]: With dead ends: 439 [2024-11-13 15:29:27,599 INFO L226 Difference]: Without dead ends: 435 [2024-11-13 15:29:27,599 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-11-13 15:29:27,600 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 8 mSDsluCounter, 1142 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1372 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:29:27,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1372 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 15:29:27,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2024-11-13 15:29:27,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 433. [2024-11-13 15:29:27,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 420 states have (on average 1.1785714285714286) internal successors, (495), 425 states have internal predecessors, (495), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-13 15:29:27,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 510 transitions. [2024-11-13 15:29:27,611 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 510 transitions. Word has length 140 [2024-11-13 15:29:27,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:29:27,611 INFO L471 AbstractCegarLoop]: Abstraction has 433 states and 510 transitions. [2024-11-13 15:29:27,611 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), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 15:29:27,611 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 510 transitions. [2024-11-13 15:29:27,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-13 15:29:27,613 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:29:27,613 INFO L215 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:29:27,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-13 15:29:27,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:29:27,814 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:29:27,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:29:27,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1502640174, now seen corresponding path program 3 times [2024-11-13 15:29:27,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:29:27,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1404017157] [2024-11-13 15:29:27,816 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 15:29:27,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:29:27,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:29:27,818 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:29:27,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e208920-228a-4747-9cdb-a40d9c47a13d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process