./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx --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 26a58d7d603dc7e351440fbc8be1a2e69d6c8a245d05ca1fdcdd97a1f744081c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:24:09,381 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:24:09,502 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-21 22:24:09,511 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:24:09,512 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:24:09,549 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:24:09,551 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:24:09,551 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:24:09,553 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:24:09,557 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:24:09,558 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:24:09,559 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:24:09,559 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:24:09,561 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:24:09,562 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:24:09,562 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:24:09,562 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:24:09,563 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:24:09,563 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:24:09,564 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:24:09,564 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-21 22:24:09,565 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-21 22:24:09,565 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:24:09,565 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:24:09,566 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:24:09,566 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:24:09,567 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:24:09,567 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:24:09,567 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:24:09,568 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:24:09,569 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:24:09,569 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:24:09,570 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:24:09,570 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:24:09,570 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:24:09,570 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:24:09,570 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:24:09,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:24:09,571 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:24:09,571 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:24:09,571 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:24:09,572 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:24:09,572 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26a58d7d603dc7e351440fbc8be1a2e69d6c8a245d05ca1fdcdd97a1f744081c [2023-11-21 22:24:09,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:24:09,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:24:09,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:24:09,971 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:24:09,972 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:24:09,973 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test1-2.i [2023-11-21 22:24:13,107 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:24:13,464 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:24:13,466 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test1-2.i [2023-11-21 22:24:13,501 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/data/b7042a186/84cc7420775f40c196f432ce961102d1/FLAGa90c56c9c [2023-11-21 22:24:13,565 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/data/b7042a186/84cc7420775f40c196f432ce961102d1 [2023-11-21 22:24:13,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:24:13,600 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:24:13,604 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:24:13,605 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:24:13,615 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:24:13,616 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:24:13" (1/1) ... [2023-11-21 22:24:13,617 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26ef10bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:13, skipping insertion in model container [2023-11-21 22:24:13,617 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:24:13" (1/1) ... [2023-11-21 22:24:13,706 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:24:13,943 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 22:24:14,295 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:24:14,307 ERROR L324 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) [2023-11-21 22:24:14,308 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7b8771b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:14, skipping insertion in model container [2023-11-21 22:24:14,308 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:24:14,309 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-21 22:24:14,311 INFO L158 Benchmark]: Toolchain (without parser) took 709.44ms. Allocated memory is still 130.0MB. Free memory was 103.9MB in the beginning and 86.4MB in the end (delta: 17.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-21 22:24:14,311 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 107.0MB. Free memory is still 76.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:24:14,312 INFO L158 Benchmark]: CACSL2BoogieTranslator took 704.23ms. Allocated memory is still 130.0MB. Free memory was 103.5MB in the beginning and 86.4MB in the end (delta: 17.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-21 22:24:14,314 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 107.0MB. Free memory is still 76.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 704.23ms. Allocated memory is still 130.0MB. Free memory was 103.5MB in the beginning and 86.4MB in the end (delta: 17.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 738]: 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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx --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 26a58d7d603dc7e351440fbc8be1a2e69d6c8a245d05ca1fdcdd97a1f744081c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:24:16,869 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:24:16,985 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-21 22:24:16,993 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:24:16,994 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:24:17,042 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:24:17,044 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:24:17,045 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:24:17,046 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:24:17,050 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:24:17,051 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:24:17,052 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:24:17,052 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:24:17,054 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:24:17,055 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:24:17,055 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:24:17,056 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:24:17,056 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:24:17,056 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:24:17,057 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:24:17,058 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-21 22:24:17,058 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-21 22:24:17,059 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:24:17,059 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:24:17,060 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:24:17,060 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:24:17,060 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:24:17,061 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:24:17,061 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:24:17,062 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:24:17,063 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:24:17,063 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:24:17,064 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:24:17,064 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:24:17,064 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:24:17,064 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:24:17,065 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:24:17,065 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:24:17,065 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:24:17,066 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:24:17,066 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:24:17,067 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:24:17,067 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:24:17,067 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:24:17,068 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:24:17,068 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26a58d7d603dc7e351440fbc8be1a2e69d6c8a245d05ca1fdcdd97a1f744081c [2023-11-21 22:24:17,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:24:17,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:24:17,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:24:17,511 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:24:17,517 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:24:17,520 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test1-2.i [2023-11-21 22:24:20,889 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:24:21,329 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:24:21,330 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test1-2.i [2023-11-21 22:24:21,350 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/data/b041149f5/db23fb80f1f5434b941cd04e6040d2bd/FLAG0d5be931e [2023-11-21 22:24:21,366 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/data/b041149f5/db23fb80f1f5434b941cd04e6040d2bd [2023-11-21 22:24:21,369 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:24:21,370 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:24:21,372 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:24:21,372 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:24:21,378 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:24:21,379 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:24:21" (1/1) ... [2023-11-21 22:24:21,380 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@393cfbc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:21, skipping insertion in model container [2023-11-21 22:24:21,381 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:24:21" (1/1) ... [2023-11-21 22:24:21,443 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:24:21,801 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 22:24:22,151 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:24:22,164 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-21 22:24:22,194 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:24:22,213 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 22:24:22,273 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:24:22,278 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:24:22,296 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 22:24:22,346 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:24:22,395 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:24:22,403 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:24:22,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:22 WrapperNode [2023-11-21 22:24:22,404 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:24:22,405 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:24:22,405 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:24:22,405 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:24:22,413 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:22" (1/1) ... [2023-11-21 22:24:22,447 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:22" (1/1) ... [2023-11-21 22:24:22,507 INFO L138 Inliner]: procedures = 181, calls = 229, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 743 [2023-11-21 22:24:22,507 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:24:22,508 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:24:22,508 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:24:22,508 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:24:22,517 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:22" (1/1) ... [2023-11-21 22:24:22,518 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:22" (1/1) ... [2023-11-21 22:24:22,529 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:22" (1/1) ... [2023-11-21 22:24:22,542 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:22" (1/1) ... [2023-11-21 22:24:22,618 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:22" (1/1) ... [2023-11-21 22:24:22,629 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:22" (1/1) ... [2023-11-21 22:24:22,649 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:22" (1/1) ... [2023-11-21 22:24:22,658 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:22" (1/1) ... [2023-11-21 22:24:22,672 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:24:22,673 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:24:22,675 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:24:22,675 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:24:22,676 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:22" (1/1) ... [2023-11-21 22:24:22,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:24:22,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:24:22,714 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:24:22,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:24:22,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-21 22:24:22,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-21 22:24:22,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-21 22:24:22,796 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-21 22:24:22,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:24:22,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:24:22,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:24:22,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 22:24:22,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 22:24:22,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:24:22,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-21 22:24:22,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 22:24:22,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:24:22,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:24:23,053 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:24:23,055 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:24:29,923 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:24:30,444 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:24:30,444 INFO L308 CfgBuilder]: Removed 40 assume(true) statements. [2023-11-21 22:24:30,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:24:30 BoogieIcfgContainer [2023-11-21 22:24:30,447 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:24:30,449 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:24:30,450 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:24:30,454 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:24:30,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:24:21" (1/3) ... [2023-11-21 22:24:30,455 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50602529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:24:30, skipping insertion in model container [2023-11-21 22:24:30,455 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:22" (2/3) ... [2023-11-21 22:24:30,456 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50602529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:24:30, skipping insertion in model container [2023-11-21 22:24:30,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:24:30" (3/3) ... [2023-11-21 22:24:30,458 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_nondet_test1-2.i [2023-11-21 22:24:30,478 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:24:30,479 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-21 22:24:30,540 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:24:30,547 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@6231d9d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:24:30,547 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-21 22:24:30,552 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 74 states have (on average 1.7162162162162162) internal successors, (127), 76 states have internal predecessors, (127), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:24:30,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 22:24:30,560 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:24:30,561 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-21 22:24:30,561 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-21 22:24:30,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:30,570 INFO L85 PathProgramCache]: Analyzing trace with hash 177925633, now seen corresponding path program 1 times [2023-11-21 22:24:30,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:24:30,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [224112163] [2023-11-21 22:24:30,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:30,587 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:24:30,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:24:30,590 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-21 22:24:30,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-21 22:24:30,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:30,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:24:30,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:24:30,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:24:30,803 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:24:30,804 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:24:30,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [224112163] [2023-11-21 22:24:30,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [224112163] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:24:30,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:24:30,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:24:30,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682627188] [2023-11-21 22:24:30,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:24:30,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:24:30,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:24:30,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:24:30,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:24:30,857 INFO L87 Difference]: Start difference. First operand has 81 states, 74 states have (on average 1.7162162162162162) internal successors, (127), 76 states have internal predecessors, (127), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-21 22:24:32,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:24:34,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:24:37,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:24:39,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:24:41,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:24:43,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:24:45,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:24:47,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:24:47,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:24:47,614 INFO L93 Difference]: Finished difference Result 132 states and 152 transitions. [2023-11-21 22:24:47,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:24:47,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2023-11-21 22:24:47,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:24:47,638 INFO L225 Difference]: With dead ends: 132 [2023-11-21 22:24:47,639 INFO L226 Difference]: Without dead ends: 131 [2023-11-21 22:24:47,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:24:47,645 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 53 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2023-11-21 22:24:47,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 154 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 6 Unknown, 0 Unchecked, 16.7s Time] [2023-11-21 22:24:47,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2023-11-21 22:24:47,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 80. [2023-11-21 22:24:47,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 74 states have (on average 1.162162162162162) internal successors, (86), 75 states have internal predecessors, (86), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:24:47,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 92 transitions. [2023-11-21 22:24:47,702 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 92 transitions. Word has length 6 [2023-11-21 22:24:47,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:24:47,703 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 92 transitions. [2023-11-21 22:24:47,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-21 22:24:47,704 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 92 transitions. [2023-11-21 22:24:47,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-21 22:24:47,707 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:24:47,707 INFO L195 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] [2023-11-21 22:24:47,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:24:47,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:24:47,910 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-21 22:24:47,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:47,911 INFO L85 PathProgramCache]: Analyzing trace with hash 574318223, now seen corresponding path program 1 times [2023-11-21 22:24:47,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:24:47,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [244292385] [2023-11-21 22:24:47,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:47,913 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:24:47,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:24:47,915 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-21 22:24:47,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-21 22:24:48,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:48,444 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:24:48,448 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:24:48,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:24:48,695 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:24:48,695 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:24:48,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [244292385] [2023-11-21 22:24:48,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [244292385] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:24:48,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:24:48,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:24:48,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557061603] [2023-11-21 22:24:48,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:24:48,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:24:48,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:24:48,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:24:48,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:24:48,701 INFO L87 Difference]: Start difference. First operand 80 states and 92 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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) [2023-11-21 22:24:50,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:24:54,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:24:56,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:24:58,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:25:00,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:25:02,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:25:02,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:25:02,554 INFO L93 Difference]: Finished difference Result 110 states and 125 transitions. [2023-11-21 22:25:02,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:25:02,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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 33 [2023-11-21 22:25:02,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:25:02,564 INFO L225 Difference]: With dead ends: 110 [2023-11-21 22:25:02,564 INFO L226 Difference]: Without dead ends: 110 [2023-11-21 22:25:02,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:25:02,566 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 27 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2023-11-21 22:25:02,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 132 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 4 Unknown, 0 Unchecked, 13.8s Time] [2023-11-21 22:25:02,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-11-21 22:25:02,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 94. [2023-11-21 22:25:02,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 88 states have (on average 1.1477272727272727) internal successors, (101), 89 states have internal predecessors, (101), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:25:02,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 107 transitions. [2023-11-21 22:25:02,578 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 107 transitions. Word has length 33 [2023-11-21 22:25:02,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:25:02,579 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 107 transitions. [2023-11-21 22:25:02,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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) [2023-11-21 22:25:02,580 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 107 transitions. [2023-11-21 22:25:02,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-21 22:25:02,582 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:25:02,582 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:25:02,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-21 22:25:02,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:25:02,783 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-21 22:25:02,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:02,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1163259616, now seen corresponding path program 1 times [2023-11-21 22:25:02,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:25:02,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [787448072] [2023-11-21 22:25:02,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:02,785 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:25:02,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:25:02,787 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-21 22:25:02,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aff2859-2944-4ea0-8de9-b5bac6c80c43/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-21 22:25:03,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:03,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:25:03,373 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:25:03,436 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:25:03,436 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:25:03,437 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:25:03,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [787448072] [2023-11-21 22:25:03,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [787448072] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:25:03,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:25:03,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:25:03,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716211901] [2023-11-21 22:25:03,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:25:03,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:25:03,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:25:03,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:25:03,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:25:03,441 INFO L87 Difference]: Start difference. First operand 94 states and 107 transitions. Second operand has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:25:06,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:25:11,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:25:13,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:25:15,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []