./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/verifythis/tree_del_rec.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0e0057cc 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_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/verifythis/tree_del_rec.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI --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 448d6e9f7f0c094a8335d652a2766ae983308e33ec1a543ceaed97ae79744722 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:58:29,621 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:58:29,707 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-24 21:58:29,713 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:58:29,714 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:58:29,742 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:58:29,743 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:58:29,744 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:58:29,745 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:58:29,745 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:58:29,746 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:58:29,746 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:58:29,747 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:58:29,748 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:58:29,748 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:58:29,749 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:58:29,750 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 21:58:29,750 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:58:29,751 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:58:29,751 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:58:29,752 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:58:29,752 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 21:58:29,753 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 21:58:29,753 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 21:58:29,754 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:58:29,754 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 21:58:29,755 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 21:58:29,755 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 21:58:29,755 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:58:29,756 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 21:58:29,756 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:58:29,757 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:58:29,757 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:58:29,757 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:58:29,758 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:58:29,758 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:58:29,758 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:58:29,758 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:58:29,759 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 21:58:29,759 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 21:58:29,759 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:58:29,759 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:58:29,760 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:58:29,760 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:58:29,760 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_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 448d6e9f7f0c094a8335d652a2766ae983308e33ec1a543ceaed97ae79744722 [2023-11-24 21:58:30,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:58:30,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:58:30,119 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:58:30,120 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:58:30,121 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:58:30,123 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/verifythis/tree_del_rec.c [2023-11-24 21:58:33,265 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:58:33,485 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:58:33,486 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/sv-benchmarks/c/verifythis/tree_del_rec.c [2023-11-24 21:58:33,495 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/data/b14e3f0cb/53a530bf3b4641b79b565c570e05d0ce/FLAG51f404c89 [2023-11-24 21:58:33,515 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/data/b14e3f0cb/53a530bf3b4641b79b565c570e05d0ce [2023-11-24 21:58:33,523 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:58:33,525 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:58:33,529 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:58:33,529 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:58:33,535 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:58:33,538 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:58:33" (1/1) ... [2023-11-24 21:58:33,540 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cbc4c06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:58:33, skipping insertion in model container [2023-11-24 21:58:33,540 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:58:33" (1/1) ... [2023-11-24 21:58:33,572 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:58:33,810 WARN L1590 CHandler]: Possible shadowing of function min [2023-11-24 21:58:33,811 WARN L1590 CHandler]: Possible shadowing of function min [2023-11-24 21:58:33,847 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:58:33,868 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) [2023-11-24 21:58:33,869 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@759fbc24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:58:33, skipping insertion in model container [2023-11-24 21:58:33,869 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:58:33,870 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-24 21:58:33,872 INFO L158 Benchmark]: Toolchain (without parser) took 345.99ms. Allocated memory is still 123.7MB. Free memory was 85.4MB in the beginning and 75.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 21:58:33,872 INFO L158 Benchmark]: CDTParser took 1.54ms. Allocated memory is still 123.7MB. Free memory is still 95.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 21:58:33,874 INFO L158 Benchmark]: CACSL2BoogieTranslator took 340.59ms. Allocated memory is still 123.7MB. Free memory was 84.9MB in the beginning and 75.4MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-24 21:58:33,876 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.54ms. Allocated memory is still 123.7MB. Free memory is still 95.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 340.59ms. Allocated memory is still 123.7MB. Free memory was 84.9MB in the beginning and 75.4MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 28]: 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_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/verifythis/tree_del_rec.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI --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 448d6e9f7f0c094a8335d652a2766ae983308e33ec1a543ceaed97ae79744722 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:58:36,494 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:58:36,611 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-24 21:58:36,622 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:58:36,623 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:58:36,672 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:58:36,673 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:58:36,674 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:58:36,675 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:58:36,680 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:58:36,681 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:58:36,681 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:58:36,682 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:58:36,684 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:58:36,684 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:58:36,685 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:58:36,686 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 21:58:36,686 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:58:36,687 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:58:36,687 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:58:36,688 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:58:36,688 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 21:58:36,689 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 21:58:36,689 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 21:58:36,690 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:58:36,690 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 21:58:36,691 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 21:58:36,691 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 21:58:36,692 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 21:58:36,692 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 21:58:36,694 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:58:36,694 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 21:58:36,694 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:58:36,695 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:58:36,695 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:58:36,695 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:58:36,695 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:58:36,696 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:58:36,696 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:58:36,696 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:58:36,696 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-24 21:58:36,697 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 21:58:36,697 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:58:36,697 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:58:36,698 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:58:36,698 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:58:36,699 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-24 21:58:36,699 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_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 448d6e9f7f0c094a8335d652a2766ae983308e33ec1a543ceaed97ae79744722 [2023-11-24 21:58:37,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:58:37,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:58:37,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:58:37,153 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:58:37,153 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:58:37,155 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/verifythis/tree_del_rec.c [2023-11-24 21:58:40,436 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:58:40,733 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:58:40,733 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/sv-benchmarks/c/verifythis/tree_del_rec.c [2023-11-24 21:58:40,740 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/data/ad6f8978b/28b801c41176431bb89715ca93f572a5/FLAGce73b5df6 [2023-11-24 21:58:40,756 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/data/ad6f8978b/28b801c41176431bb89715ca93f572a5 [2023-11-24 21:58:40,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:58:40,760 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:58:40,762 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:58:40,762 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:58:40,768 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:58:40,769 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:58:40" (1/1) ... [2023-11-24 21:58:40,770 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33bbcc3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:58:40, skipping insertion in model container [2023-11-24 21:58:40,770 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:58:40" (1/1) ... [2023-11-24 21:58:40,806 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:58:41,034 WARN L1590 CHandler]: Possible shadowing of function min [2023-11-24 21:58:41,037 WARN L1590 CHandler]: Possible shadowing of function min [2023-11-24 21:58:41,078 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:58:41,106 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-24 21:58:41,121 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:58:41,142 WARN L1590 CHandler]: Possible shadowing of function min [2023-11-24 21:58:41,147 WARN L1590 CHandler]: Possible shadowing of function min [2023-11-24 21:58:41,163 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:58:41,172 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 21:58:41,212 WARN L1590 CHandler]: Possible shadowing of function min [2023-11-24 21:58:41,219 WARN L1590 CHandler]: Possible shadowing of function min [2023-11-24 21:58:41,229 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:58:41,261 INFO L206 MainTranslator]: Completed translation [2023-11-24 21:58:41,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:58:41 WrapperNode [2023-11-24 21:58:41,262 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:58:41,263 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 21:58:41,263 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 21:58:41,264 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 21:58:41,271 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:58:41" (1/1) ... [2023-11-24 21:58:41,301 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:58:41" (1/1) ... [2023-11-24 21:58:41,337 INFO L138 Inliner]: procedures = 31, calls = 62, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 73 [2023-11-24 21:58:41,338 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 21:58:41,339 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 21:58:41,339 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 21:58:41,339 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 21:58:41,352 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:58:41" (1/1) ... [2023-11-24 21:58:41,352 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:58:41" (1/1) ... [2023-11-24 21:58:41,358 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:58:41" (1/1) ... [2023-11-24 21:58:41,401 INFO L175 MemorySlicer]: Split 25 memory accesses to 4 slices as follows [2, 16, 5, 2]. 64 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 7 writes are split as follows [0, 4, 2, 1]. [2023-11-24 21:58:41,401 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:58:41" (1/1) ... [2023-11-24 21:58:41,402 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:58:41" (1/1) ... [2023-11-24 21:58:41,428 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:58:41" (1/1) ... [2023-11-24 21:58:41,432 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:58:41" (1/1) ... [2023-11-24 21:58:41,435 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:58:41" (1/1) ... [2023-11-24 21:58:41,437 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:58:41" (1/1) ... [2023-11-24 21:58:41,461 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 21:58:41,462 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 21:58:41,462 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 21:58:41,463 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 21:58:41,464 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:58:41" (1/1) ... [2023-11-24 21:58:41,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:58:41,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:58:41,512 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-24 21:58:41,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-24 21:58:41,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 21:58:41,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-24 21:58:41,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-24 21:58:41,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-24 21:58:41,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-24 21:58:41,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 21:58:41,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-24 21:58:41,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-24 21:58:41,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-24 21:58:41,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-24 21:58:41,573 INFO L130 BoogieDeclarations]: Found specification of procedure tree_del [2023-11-24 21:58:41,574 INFO L138 BoogieDeclarations]: Found implementation of procedure tree_del [2023-11-24 21:58:41,574 INFO L130 BoogieDeclarations]: Found specification of procedure min [2023-11-24 21:58:41,575 INFO L138 BoogieDeclarations]: Found implementation of procedure min [2023-11-24 21:58:41,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-24 21:58:41,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-24 21:58:41,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-24 21:58:41,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-24 21:58:41,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-24 21:58:41,579 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-24 21:58:41,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-24 21:58:41,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-24 21:58:41,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-24 21:58:41,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-24 21:58:41,580 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_tree [2023-11-24 21:58:41,584 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_tree [2023-11-24 21:58:41,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 21:58:41,586 INFO L130 BoogieDeclarations]: Found specification of procedure size [2023-11-24 21:58:41,586 INFO L138 BoogieDeclarations]: Found implementation of procedure size [2023-11-24 21:58:41,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 21:58:41,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 21:58:41,586 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 21:58:41,586 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 21:58:41,586 INFO L130 BoogieDeclarations]: Found specification of procedure tree_inorder [2023-11-24 21:58:41,587 INFO L138 BoogieDeclarations]: Found implementation of procedure tree_inorder [2023-11-24 21:58:41,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 21:58:41,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-24 21:58:41,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-24 21:58:41,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-24 21:58:41,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-24 21:58:41,787 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 21:58:41,789 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 21:58:42,296 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 21:58:42,321 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 21:58:42,321 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-24 21:58:42,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:58:42 BoogieIcfgContainer [2023-11-24 21:58:42,321 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 21:58:42,324 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 21:58:42,324 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 21:58:42,327 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 21:58:42,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 09:58:40" (1/3) ... [2023-11-24 21:58:42,328 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aae492e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:58:42, skipping insertion in model container [2023-11-24 21:58:42,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:58:41" (2/3) ... [2023-11-24 21:58:42,329 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aae492e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:58:42, skipping insertion in model container [2023-11-24 21:58:42,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:58:42" (3/3) ... [2023-11-24 21:58:42,330 INFO L112 eAbstractionObserver]: Analyzing ICFG tree_del_rec.c [2023-11-24 21:58:42,352 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 21:58:42,352 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-24 21:58:42,415 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 21:58:42,422 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;@62f5754, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 21:58:42,422 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-24 21:58:42,427 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 51 states have (on average 1.2941176470588236) internal successors, (66), 53 states have internal predecessors, (66), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-24 21:58:42,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-24 21:58:42,443 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:58:42,445 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, 1, 1] [2023-11-24 21:58:42,445 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:58:42,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:58:42,451 INFO L85 PathProgramCache]: Analyzing trace with hash 287439373, now seen corresponding path program 1 times [2023-11-24 21:58:42,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:58:42,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [542746108] [2023-11-24 21:58:42,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:58:42,464 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 [2023-11-24 21:58:42,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:58:42,468 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/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) [2023-11-24 21:58:42,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:58:42,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:58:42,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 21:58:42,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:58:42,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:58:42,746 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:58:42,746 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:58:42,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [542746108] [2023-11-24 21:58:42,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [542746108] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:58:42,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:58:42,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 21:58:42,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395068409] [2023-11-24 21:58:42,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:58:42,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 21:58:42,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:58:42,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 21:58:42,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 21:58:42,787 INFO L87 Difference]: Start difference. First operand has 83 states, 51 states have (on average 1.2941176470588236) internal successors, (66), 53 states have internal predecessors, (66), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-24 21:58:42,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:58:42,867 INFO L93 Difference]: Finished difference Result 87 states and 113 transitions. [2023-11-24 21:58:42,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 21:58:42,869 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 35 [2023-11-24 21:58:42,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:58:42,880 INFO L225 Difference]: With dead ends: 87 [2023-11-24 21:58:42,880 INFO L226 Difference]: Without dead ends: 83 [2023-11-24 21:58:42,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 21:58:42,886 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 2 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 21:58:42,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 390 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 21:58:42,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-11-24 21:58:42,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2023-11-24 21:58:42,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 51 states have (on average 1.1764705882352942) internal successors, (60), 53 states have internal predecessors, (60), 22 states have call successors, (22), 7 states have call predecessors, (22), 8 states have return successors, (25), 22 states have call predecessors, (25), 22 states have call successors, (25) [2023-11-24 21:58:42,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 107 transitions. [2023-11-24 21:58:42,959 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 107 transitions. Word has length 35 [2023-11-24 21:58:42,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:58:42,960 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 107 transitions. [2023-11-24 21:58:42,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-24 21:58:42,960 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 107 transitions. [2023-11-24 21:58:42,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-24 21:58:42,964 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:58:42,964 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-11-24 21:58:42,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:58:43,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:58:43,168 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:58:43,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:58:43,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1084739152, now seen corresponding path program 1 times [2023-11-24 21:58:43,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:58:43,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1593814475] [2023-11-24 21:58:43,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:58:43,171 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 [2023-11-24 21:58:43,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:58:43,172 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/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) [2023-11-24 21:58:43,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:58:43,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:58:43,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-24 21:58:43,347 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:58:43,590 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 21:58:43,591 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 21:58:43,850 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 21:58:43,850 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:58:43,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1593814475] [2023-11-24 21:58:43,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1593814475] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 21:58:43,851 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-24 21:58:43,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2023-11-24 21:58:43,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233780955] [2023-11-24 21:58:43,852 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-24 21:58:43,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 21:58:43,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:58:43,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 21:58:43,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-24 21:58:43,856 INFO L87 Difference]: Start difference. First operand 83 states and 107 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 4 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-24 21:58:44,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:58:44,094 INFO L93 Difference]: Finished difference Result 89 states and 116 transitions. [2023-11-24 21:58:44,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 21:58:44,095 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 4 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 47 [2023-11-24 21:58:44,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:58:44,098 INFO L225 Difference]: With dead ends: 89 [2023-11-24 21:58:44,099 INFO L226 Difference]: Without dead ends: 85 [2023-11-24 21:58:44,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-24 21:58:44,101 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 7 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-24 21:58:44,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 613 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-24 21:58:44,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-11-24 21:58:44,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2023-11-24 21:58:44,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 52 states have (on average 1.1730769230769231) internal successors, (61), 55 states have internal predecessors, (61), 22 states have call successors, (22), 7 states have call predecessors, (22), 9 states have return successors, (27), 22 states have call predecessors, (27), 22 states have call successors, (27) [2023-11-24 21:58:44,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 110 transitions. [2023-11-24 21:58:44,115 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 110 transitions. Word has length 47 [2023-11-24 21:58:44,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:58:44,115 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 110 transitions. [2023-11-24 21:58:44,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 4 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-24 21:58:44,116 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 110 transitions. [2023-11-24 21:58:44,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-24 21:58:44,119 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:58:44,119 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-11-24 21:58:44,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:58:44,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:58:44,323 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:58:44,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:58:44,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1707295275, now seen corresponding path program 1 times [2023-11-24 21:58:44,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:58:44,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [216296058] [2023-11-24 21:58:44,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:58:44,325 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 [2023-11-24 21:58:44,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:58:44,326 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/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) [2023-11-24 21:58:44,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:58:44,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:58:44,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 21:58:44,519 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:58:44,609 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-24 21:58:44,610 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:58:44,610 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:58:44,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [216296058] [2023-11-24 21:58:44,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [216296058] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:58:44,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:58:44,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-24 21:58:44,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765090268] [2023-11-24 21:58:44,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:58:44,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 21:58:44,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:58:44,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 21:58:44,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-24 21:58:44,615 INFO L87 Difference]: Start difference. First operand 85 states and 110 transitions. Second operand has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 4 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-24 21:58:44,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:58:44,853 INFO L93 Difference]: Finished difference Result 87 states and 113 transitions. [2023-11-24 21:58:44,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 21:58:44,854 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 4 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) Word has length 59 [2023-11-24 21:58:44,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:58:44,856 INFO L225 Difference]: With dead ends: 87 [2023-11-24 21:58:44,856 INFO L226 Difference]: Without dead ends: 87 [2023-11-24 21:58:44,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-24 21:58:44,858 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 45 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-24 21:58:44,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 568 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-24 21:58:44,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-24 21:58:44,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2023-11-24 21:58:44,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 53 states have (on average 1.169811320754717) internal successors, (62), 57 states have internal predecessors, (62), 22 states have call successors, (22), 7 states have call predecessors, (22), 10 states have return successors, (29), 22 states have call predecessors, (29), 22 states have call successors, (29) [2023-11-24 21:58:44,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 113 transitions. [2023-11-24 21:58:44,878 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 113 transitions. Word has length 59 [2023-11-24 21:58:44,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:58:44,879 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 113 transitions. [2023-11-24 21:58:44,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 4 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-24 21:58:44,880 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 113 transitions. [2023-11-24 21:58:44,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-24 21:58:44,886 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:58:44,886 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:58:44,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/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)] Forceful destruction successful, exit code 0 [2023-11-24 21:58:45,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:58:45,091 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:58:45,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:58:45,091 INFO L85 PathProgramCache]: Analyzing trace with hash 985482265, now seen corresponding path program 1 times [2023-11-24 21:58:45,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:58:45,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [605832747] [2023-11-24 21:58:45,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:58:45,092 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 [2023-11-24 21:58:45,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:58:45,094 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/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) [2023-11-24 21:58:45,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/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 (5)] Waiting until timeout for monitored process [2023-11-24 21:58:45,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:58:45,327 INFO L262 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 21:58:45,331 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:58:45,453 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-24 21:58:45,453 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:58:45,454 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:58:45,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [605832747] [2023-11-24 21:58:45,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [605832747] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:58:45,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:58:45,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-24 21:58:45,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57911423] [2023-11-24 21:58:45,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:58:45,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 21:58:45,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:58:45,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 21:58:45,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-24 21:58:45,460 INFO L87 Difference]: Start difference. First operand 87 states and 113 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 4 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-24 21:58:45,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:58:45,762 INFO L93 Difference]: Finished difference Result 89 states and 116 transitions. [2023-11-24 21:58:45,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 21:58:45,763 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 4 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) Word has length 72 [2023-11-24 21:58:45,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:58:45,765 INFO L225 Difference]: With dead ends: 89 [2023-11-24 21:58:45,765 INFO L226 Difference]: Without dead ends: 89 [2023-11-24 21:58:45,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-24 21:58:45,767 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 36 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-24 21:58:45,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 565 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-24 21:58:45,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-11-24 21:58:45,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2023-11-24 21:58:45,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 54 states have (on average 1.1666666666666667) internal successors, (63), 59 states have internal predecessors, (63), 22 states have call successors, (22), 7 states have call predecessors, (22), 11 states have return successors, (31), 22 states have call predecessors, (31), 22 states have call successors, (31) [2023-11-24 21:58:45,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 116 transitions. [2023-11-24 21:58:45,789 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 116 transitions. Word has length 72 [2023-11-24 21:58:45,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:58:45,791 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 116 transitions. [2023-11-24 21:58:45,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 4 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-24 21:58:45,794 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 116 transitions. [2023-11-24 21:58:45,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-24 21:58:45,805 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:58:45,805 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-24 21:58:45,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/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 (5)] Forceful destruction successful, exit code 0 [2023-11-24 21:58:46,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:58:46,010 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:58:46,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:58:46,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1805043180, now seen corresponding path program 1 times [2023-11-24 21:58:46,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:58:46,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1724378667] [2023-11-24 21:58:46,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:58:46,012 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 [2023-11-24 21:58:46,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:58:46,016 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/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) [2023-11-24 21:58:46,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/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 (6)] Waiting until timeout for monitored process [2023-11-24 21:58:46,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 21:58:46,497 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 21:58:46,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 21:58:46,965 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-24 21:58:46,965 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 21:58:46,966 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2023-11-24 21:58:46,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2023-11-24 21:58:46,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/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 (6)] Forceful destruction successful, exit code 0 [2023-11-24 21:58:47,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:58:47,172 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-24 21:58:47,176 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 21:58:47,207 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret8 [2023-11-24 21:58:47,208 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret9 [2023-11-24 21:58:47,208 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret43 [2023-11-24 21:58:47,209 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem11 [2023-11-24 21:58:47,212 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret12 could not be translated [2023-11-24 21:58:47,212 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem11 [2023-11-24 21:58:47,213 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem13 [2023-11-24 21:58:47,214 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem13 [2023-11-24 21:58:47,214 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret14 could not be translated [2023-11-24 21:58:47,215 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret30 could not be translated [2023-11-24 21:58:47,215 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem26 [2023-11-24 21:58:47,216 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret27 could not be translated [2023-11-24 21:58:47,216 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem26 [2023-11-24 21:58:47,217 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem28 [2023-11-24 21:58:47,217 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret27 could not be translated [2023-11-24 21:58:47,217 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem26 [2023-11-24 21:58:47,218 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret29 could not be translated [2023-11-24 21:58:47,218 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret27 could not be translated [2023-11-24 21:58:47,218 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem26 [2023-11-24 21:58:47,218 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem28 [2023-11-24 21:58:47,219 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret31 could not be translated [2023-11-24 21:58:47,220 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc32 [2023-11-24 21:58:47,220 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc32 [2023-11-24 21:58:47,221 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem20 [2023-11-24 21:58:47,222 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret21 could not be translated [2023-11-24 21:58:47,222 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem20 [2023-11-24 21:58:47,222 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem24 [2023-11-24 21:58:47,223 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret25 could not be translated [2023-11-24 21:58:47,224 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem24 [2023-11-24 21:58:47,225 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret33 could not be translated [2023-11-24 21:58:47,225 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc32 [2023-11-24 21:58:47,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 09:58:47 BoogieIcfgContainer [2023-11-24 21:58:47,239 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 21:58:47,240 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 21:58:47,240 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 21:58:47,241 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 21:58:47,241 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:58:42" (3/4) ... [2023-11-24 21:58:47,242 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-24 21:58:47,258 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret8 [2023-11-24 21:58:47,258 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret9 [2023-11-24 21:58:47,259 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret43 [2023-11-24 21:58:47,259 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem11 [2023-11-24 21:58:47,260 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret12 could not be translated [2023-11-24 21:58:47,260 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem11 [2023-11-24 21:58:47,261 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem13 [2023-11-24 21:58:47,261 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem13 [2023-11-24 21:58:47,262 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret14 could not be translated [2023-11-24 21:58:47,262 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret30 could not be translated [2023-11-24 21:58:47,263 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem26 [2023-11-24 21:58:47,263 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret27 could not be translated [2023-11-24 21:58:47,263 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem26 [2023-11-24 21:58:47,264 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem28 [2023-11-24 21:58:47,264 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret27 could not be translated [2023-11-24 21:58:47,264 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem26 [2023-11-24 21:58:47,265 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret29 could not be translated [2023-11-24 21:58:47,265 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret27 could not be translated [2023-11-24 21:58:47,265 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem26 [2023-11-24 21:58:47,265 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem28 [2023-11-24 21:58:47,266 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret31 could not be translated [2023-11-24 21:58:47,275 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc32 [2023-11-24 21:58:47,276 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc32 [2023-11-24 21:58:47,280 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem20 [2023-11-24 21:58:47,281 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem20 [2023-11-24 21:58:47,281 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret21 could not be translated [2023-11-24 21:58:47,282 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem24 [2023-11-24 21:58:47,282 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem24 [2023-11-24 21:58:47,284 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret25 could not be translated [2023-11-24 21:58:47,285 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc32 [2023-11-24 21:58:47,285 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret33 could not be translated [2023-11-24 21:58:47,353 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/witness.graphml [2023-11-24 21:58:47,353 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 21:58:47,354 INFO L158 Benchmark]: Toolchain (without parser) took 6593.99ms. Allocated memory was 83.9MB in the beginning and 121.6MB in the end (delta: 37.7MB). Free memory was 59.4MB in the beginning and 78.0MB in the end (delta: -18.7MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2023-11-24 21:58:47,355 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 56.6MB. Free memory was 32.7MB in the beginning and 32.7MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 21:58:47,355 INFO L158 Benchmark]: CACSL2BoogieTranslator took 500.82ms. Allocated memory is still 83.9MB. Free memory was 59.2MB in the beginning and 45.0MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-24 21:58:47,356 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.84ms. Allocated memory is still 83.9MB. Free memory was 44.8MB in the beginning and 43.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 21:58:47,356 INFO L158 Benchmark]: Boogie Preprocessor took 122.56ms. Allocated memory is still 83.9MB. Free memory was 43.1MB in the beginning and 61.1MB in the end (delta: -18.0MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2023-11-24 21:58:47,357 INFO L158 Benchmark]: RCFGBuilder took 859.35ms. Allocated memory is still 83.9MB. Free memory was 61.1MB in the beginning and 58.3MB in the end (delta: 2.8MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2023-11-24 21:58:47,357 INFO L158 Benchmark]: TraceAbstraction took 4915.68ms. Allocated memory was 83.9MB in the beginning and 121.6MB in the end (delta: 37.7MB). Free memory was 57.9MB in the beginning and 83.1MB in the end (delta: -25.3MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2023-11-24 21:58:47,358 INFO L158 Benchmark]: Witness Printer took 113.44ms. Allocated memory is still 121.6MB. Free memory was 83.1MB in the beginning and 78.0MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 21:58:47,361 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 56.6MB. Free memory was 32.7MB in the beginning and 32.7MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 500.82ms. Allocated memory is still 83.9MB. Free memory was 59.2MB in the beginning and 45.0MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.84ms. Allocated memory is still 83.9MB. Free memory was 44.8MB in the beginning and 43.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 122.56ms. Allocated memory is still 83.9MB. Free memory was 43.1MB in the beginning and 61.1MB in the end (delta: -18.0MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. * RCFGBuilder took 859.35ms. Allocated memory is still 83.9MB. Free memory was 61.1MB in the beginning and 58.3MB in the end (delta: 2.8MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4915.68ms. Allocated memory was 83.9MB in the beginning and 121.6MB in the end (delta: 37.7MB). Free memory was 57.9MB in the beginning and 83.1MB in the end (delta: -25.3MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. * Witness Printer took 113.44ms. Allocated memory is still 121.6MB. Free memory was 83.1MB in the beginning and 78.0MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret8 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret9 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret43 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem11 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem11 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem13 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem13 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret30 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem26 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret27 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem26 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem28 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret27 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem26 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret29 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret27 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem26 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem28 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret31 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem20 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret21 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem20 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem24 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret25 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem24 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret33 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc32 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret8 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret9 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret43 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem11 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem11 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem13 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem13 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret30 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem26 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret27 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem26 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem28 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret27 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem26 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret29 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret27 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem26 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem28 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret31 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem20 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem20 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret21 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem24 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem24 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret25 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret33 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 14]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L102] CALL, EXPR nondet_tree() [L25] COND FALSE !(__VERIFIER_nondet_bool()) [L28] struct node *n = (struct node *)malloc(sizeof(struct node)); [L29] n->data = __VERIFIER_nondet_int() [L30] CALL, EXPR nondet_tree() [L25] COND TRUE __VERIFIER_nondet_bool() [L26] return 0; VAL [\result={0:0}] [L30] RET, EXPR nondet_tree() VAL [n={5:0}] [L30] n->left = nondet_tree() [L31] CALL, EXPR nondet_tree() [L25] COND TRUE __VERIFIER_nondet_bool() [L26] return 0; VAL [\result={0:0}] [L31] RET, EXPR nondet_tree() VAL [n={5:0}] [L31] n->right = nondet_tree() [L32] return n; VAL [\result={5:0}, n={5:0}] [L102] RET, EXPR nondet_tree() [L102] CALL task(nondet_tree()) [L78] CALL, EXPR min(t) VAL [n={5:0}] [L37] COND FALSE !(!n) [L40] EXPR n->data [L40] int a = n->data; [L41] EXPR n->left VAL [a=2147483647, n={5:0}, n={5:0}] [L41] CALL, EXPR min(n->left) VAL [n={0:0}] [L37] COND TRUE !n [L38] return 2147483647; VAL [\result=2147483647, n={0:0}, n={0:0}] [L41] RET, EXPR min(n->left) VAL [a=2147483647, n={5:0}, n={5:0}] [L41] int b = min(n->left); [L42] EXPR n->right VAL [a=2147483647, b=2147483647, n={5:0}, n={5:0}] [L42] CALL, EXPR min(n->right) VAL [n={0:0}] [L37] COND TRUE !n [L38] return 2147483647; VAL [\result=2147483647, n={0:0}, n={0:0}] [L42] RET, EXPR min(n->right) VAL [a=2147483647, b=2147483647, n={5:0}, n={5:0}] [L42] int c = min(n->right); [L43] COND TRUE b <= a && b <= c [L43] return b; VAL [\result=2147483647, a=2147483647, b=2147483647, c=2147483647, n={5:0}, n={5:0}] [L78] RET, EXPR min(t) VAL [t={5:0}, t={5:0}] [L78] int a = min(t); [L79] int b; VAL [a=2147483647, b={7:0}, t={5:0}, t={5:0}] [L81] CALL, EXPR size(t) VAL [t={5:0}] [L73] COND FALSE !(!t) [L74] EXPR t->left VAL [t={5:0}, t={5:0}] [L74] CALL, EXPR size(t->left) VAL [t={0:0}] [L73] COND TRUE !t [L73] return 0; VAL [\result=0, t={0:0}, t={0:0}] [L74] RET, EXPR size(t->left) VAL [t={5:0}, t={5:0}] [L74] EXPR t->right VAL [t={5:0}, t={5:0}] [L74] CALL, EXPR size(t->right) VAL [t={0:0}] [L73] COND TRUE !t [L73] return 0; VAL [\result=0, t={0:0}, t={0:0}] [L74] RET, EXPR size(t->right) VAL [t={5:0}, t={5:0}] [L74] return size(t->left) + size(t->right) + 1; [L81] RET, EXPR size(t) VAL [a=2147483647, b={7:0}, t={5:0}, t={5:0}] [L81] int n = size(t); [L82] CALL assume_cycle_if_not(n != 0) [L9] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L82] RET assume_cycle_if_not(n != 0) [L83] EXPR, FCALL calloc(n, sizeof(int)) VAL [a=2147483647, b={7:0}, n=1, t={5:0}, t={5:0}] [L83] int *x = calloc(n, sizeof(int)); VAL [a=2147483647, b={7:0}, n=1, t={5:0}, t={5:0}, x={4:0}] [L84] CALL tree_inorder(t, x, n) VAL [\old(i)=1, a={4:0}, t={5:0}] [L62] COND FALSE !(!t) [L65] EXPR t->left VAL [\old(i)=1, a={4:0}, a={4:0}, i=1, t={5:0}, t={5:0}] [L65] CALL, EXPR tree_inorder(t->left, a, i) VAL [\old(i)=1, a={4:0}, t={0:0}] [L62] COND TRUE !t [L63] return i; VAL [\old(i)=1, \result=1, a={4:0}, a={4:0}, i=1, t={0:0}, t={0:0}] [L65] RET, EXPR tree_inorder(t->left, a, i) VAL [\old(i)=1, a={4:0}, a={4:0}, i=1, t={5:0}, t={5:0}] [L65] i = tree_inorder(t->left, a, i) [L66] EXPR i++ [L66] EXPR t->data [L66] a[i++] = t->data [L67] EXPR t->right VAL [\old(i)=1, a={4:0}, a={4:0}, i=2, t={5:0}, t={5:0}] [L67] CALL, EXPR tree_inorder(t->right, a, i) VAL [\old(i)=2, a={4:0}, t={0:0}] [L62] COND TRUE !t [L63] return i; VAL [\old(i)=2, \result=2, a={4:0}, a={4:0}, i=2, t={0:0}, t={0:0}] [L67] RET, EXPR tree_inorder(t->right, a, i) VAL [\old(i)=1, a={4:0}, a={4:0}, i=2, t={5:0}, t={5:0}] [L67] i = tree_inorder(t->right, a, i) [L68] return i; VAL [\old(i)=1, \result=2, a={4:0}, a={4:0}, i=2, t={5:0}, t={5:0}] [L84] RET tree_inorder(t, x, n) VAL [a=2147483647, b={7:0}, n=1, t={5:0}, t={5:0}, x={4:0}] [L85] EXPR x[0] [L85] CALL __VERIFIER_assert(a == x[0]) [L16] COND TRUE !cond [L16] CALL reach_error() [L14] __assert_fail("0", "tree_del_rec.c", 14, "reach_error") - UnprovableResult [Line: 101]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 83 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 4.8s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 98 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 90 mSDsluCounter, 2136 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1760 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 327 IncrementalHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 376 mSDtfsCounter, 327 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 266 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=4, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 297 NumberOfCodeBlocks, 297 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 255 ConstructedInterpolants, 0 QuantifiedInterpolants, 536 SizeOfPredicates, 16 NumberOfNonLiveVariables, 737 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 80/84 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-24 21:58:47,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6308c208-a40c-4b92-93d3-4c5cb9189403/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup)