./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memcleanup.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/list_search-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/list_search-1.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --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 ef935aaf7590747bfbe771bbb249e6b84337edbf0e97024d9de82d0d23d44f30 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 17:24:01,605 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 17:24:01,687 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-10-11 17:24:01,695 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 17:24:01,696 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 17:24:01,722 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 17:24:01,722 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 17:24:01,723 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 17:24:01,724 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 17:24:01,727 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 17:24:01,727 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 17:24:01,728 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 17:24:01,728 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 17:24:01,729 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 17:24:01,729 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 17:24:01,729 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 17:24:01,729 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 17:24:01,730 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 17:24:01,730 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 17:24:01,730 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 17:24:01,730 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 17:24:01,732 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 17:24:01,733 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 17:24:01,733 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 17:24:01,733 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 17:24:01,733 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 17:24:01,734 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 17:24:01,734 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 17:24:01,734 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 17:24:01,734 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 17:24:01,735 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 17:24:01,736 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 17:24:01,736 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 17:24:01,736 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 17:24:01,736 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 17:24:01,737 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 17:24:01,737 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:24:01,737 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 17:24:01,738 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 17:24:01,738 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 17:24:01,738 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 17:24:01,738 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 17:24:01,739 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 17:24:01,739 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 17:24:01,739 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 17:24:01,739 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:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef935aaf7590747bfbe771bbb249e6b84337edbf0e97024d9de82d0d23d44f30 [2024-10-11 17:24:02,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 17:24:02,048 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 17:24:02,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 17:24:02,052 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 17:24:02,053 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 17:24:02,055 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/list_search-1.i [2024-10-11 17:24:03,500 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 17:24:03,785 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 17:24:03,786 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/list_search-1.i [2024-10-11 17:24:03,799 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/fc99d7e1f/b4619771856f494993db527bc5e87efe/FLAGb1976bba3 [2024-10-11 17:24:03,813 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/fc99d7e1f/b4619771856f494993db527bc5e87efe [2024-10-11 17:24:03,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 17:24:03,817 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 17:24:03,819 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 17:24:03,819 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 17:24:03,825 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 17:24:03,826 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:24:03" (1/1) ... [2024-10-11 17:24:03,827 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39e8dd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:24:03, skipping insertion in model container [2024-10-11 17:24:03,829 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:24:03" (1/1) ... [2024-10-11 17:24:03,870 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 17:24:04,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:24:04,316 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-10-11 17:24:04,317 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@181d9d0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:24:04, skipping insertion in model container [2024-10-11 17:24:04,317 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 17:24:04,318 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-11 17:24:04,320 INFO L158 Benchmark]: Toolchain (without parser) took 501.26ms. Allocated memory is still 172.0MB. Free memory was 113.0MB in the beginning and 139.9MB in the end (delta: -26.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-11 17:24:04,320 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 100.7MB. Free memory is still 52.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 17:24:04,321 INFO L158 Benchmark]: CACSL2BoogieTranslator took 498.78ms. Allocated memory is still 172.0MB. Free memory was 112.8MB in the beginning and 139.9MB in the end (delta: -27.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-11 17:24:04,323 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 100.7MB. Free memory is still 52.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 498.78ms. Allocated memory is still 172.0MB. Free memory was 112.8MB in the beginning and 139.9MB in the end (delta: -27.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 542]: 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: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/list_search-1.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --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 ef935aaf7590747bfbe771bbb249e6b84337edbf0e97024d9de82d0d23d44f30 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 17:24:06,458 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 17:24:06,546 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2024-10-11 17:24:06,552 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 17:24:06,554 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 17:24:06,587 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 17:24:06,588 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 17:24:06,589 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 17:24:06,590 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 17:24:06,592 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 17:24:06,592 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 17:24:06,592 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 17:24:06,593 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 17:24:06,593 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 17:24:06,594 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 17:24:06,594 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 17:24:06,594 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 17:24:06,594 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 17:24:06,595 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 17:24:06,595 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 17:24:06,595 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 17:24:06,596 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 17:24:06,597 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 17:24:06,597 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 17:24:06,597 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 17:24:06,598 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 17:24:06,598 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 17:24:06,598 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-11 17:24:06,599 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 17:24:06,599 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-11 17:24:06,599 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 17:24:06,599 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 17:24:06,599 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 17:24:06,600 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 17:24:06,601 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 17:24:06,601 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 17:24:06,602 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 17:24:06,602 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 17:24:06,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:24:06,603 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 17:24:06,603 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 17:24:06,603 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-11 17:24:06,603 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-11 17:24:06,604 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 17:24:06,604 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 17:24:06,604 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 17:24:06,604 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 17:24:06,605 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-11 17:24:06,605 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:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef935aaf7590747bfbe771bbb249e6b84337edbf0e97024d9de82d0d23d44f30 [2024-10-11 17:24:06,956 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 17:24:06,978 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 17:24:06,981 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 17:24:06,982 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 17:24:06,982 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 17:24:06,983 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/list_search-1.i [2024-10-11 17:24:08,626 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 17:24:08,881 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 17:24:08,881 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/list_search-1.i [2024-10-11 17:24:08,901 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/a04d63d9c/c32f677cbcc84382ae7e6d0b493244ae/FLAGc12f3e88e [2024-10-11 17:24:09,209 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/a04d63d9c/c32f677cbcc84382ae7e6d0b493244ae [2024-10-11 17:24:09,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 17:24:09,213 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 17:24:09,216 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 17:24:09,217 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 17:24:09,222 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 17:24:09,223 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:24:09" (1/1) ... [2024-10-11 17:24:09,224 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2acde4a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:24:09, skipping insertion in model container [2024-10-11 17:24:09,224 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:24:09" (1/1) ... [2024-10-11 17:24:09,272 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 17:24:09,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:24:09,642 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-11 17:24:09,648 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 17:24:09,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:24:09,694 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 17:24:09,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:24:09,767 INFO L204 MainTranslator]: Completed translation [2024-10-11 17:24:09,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:24:09 WrapperNode [2024-10-11 17:24:09,768 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 17:24:09,769 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 17:24:09,769 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 17:24:09,770 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 17:24:09,776 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:24:09" (1/1) ... [2024-10-11 17:24:09,802 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:24:09" (1/1) ... [2024-10-11 17:24:09,826 INFO L138 Inliner]: procedures = 128, calls = 23, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 65 [2024-10-11 17:24:09,827 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 17:24:09,828 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 17:24:09,829 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 17:24:09,829 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 17:24:09,839 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:24:09" (1/1) ... [2024-10-11 17:24:09,839 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:24:09" (1/1) ... [2024-10-11 17:24:09,847 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:24:09" (1/1) ... [2024-10-11 17:24:09,881 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 4 writes are split as follows [0, 4]. [2024-10-11 17:24:09,881 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:24:09" (1/1) ... [2024-10-11 17:24:09,882 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:24:09" (1/1) ... [2024-10-11 17:24:09,889 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:24:09" (1/1) ... [2024-10-11 17:24:09,891 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:24:09" (1/1) ... [2024-10-11 17:24:09,895 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:24:09" (1/1) ... [2024-10-11 17:24:09,896 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:24:09" (1/1) ... [2024-10-11 17:24:09,903 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 17:24:09,904 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 17:24:09,904 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 17:24:09,904 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 17:24:09,905 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:24:09" (1/1) ... [2024-10-11 17:24:09,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:24:09,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:24:09,940 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 17:24:09,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 17:24:09,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-11 17:24:09,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-11 17:24:09,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 17:24:09,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 17:24:09,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-11 17:24:09,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-11 17:24:09,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-11 17:24:09,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-11 17:24:09,992 INFO L130 BoogieDeclarations]: Found specification of procedure insert_list [2024-10-11 17:24:09,992 INFO L138 BoogieDeclarations]: Found implementation of procedure insert_list [2024-10-11 17:24:09,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 17:24:09,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-11 17:24:09,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-11 17:24:09,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-11 17:24:09,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-11 17:24:09,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 17:24:09,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 17:24:10,162 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 17:24:10,164 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 17:24:10,465 INFO L? ?]: Removed 33 outVars from TransFormulas that were not future-live. [2024-10-11 17:24:10,465 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 17:24:10,511 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 17:24:10,513 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 17:24:10,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:24:10 BoogieIcfgContainer [2024-10-11 17:24:10,514 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 17:24:10,517 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 17:24:10,517 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 17:24:10,520 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 17:24:10,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:24:09" (1/3) ... [2024-10-11 17:24:10,521 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b14dbd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:24:10, skipping insertion in model container [2024-10-11 17:24:10,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:24:09" (2/3) ... [2024-10-11 17:24:10,522 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b14dbd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:24:10, skipping insertion in model container [2024-10-11 17:24:10,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:24:10" (3/3) ... [2024-10-11 17:24:10,523 INFO L112 eAbstractionObserver]: Analyzing ICFG list_search-1.i [2024-10-11 17:24:10,543 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 17:24:10,544 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 17:24:10,594 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:24:10,602 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@606a9a4e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:24:10,603 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-11 17:24:10,607 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 21 states have internal predecessors, (29), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-11 17:24:10,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-10-11 17:24:10,619 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 17:24:10,619 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:24:10,620 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-11 17:24:10,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:24:10,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1300663270, now seen corresponding path program 1 times [2024-10-11 17:24:10,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 17:24:10,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1167450993] [2024-10-11 17:24:10,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:24:10,647 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 [2024-10-11 17:24:10,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 17:24:10,649 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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) [2024-10-11 17:24:10,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 17:24:10,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:24:10,938 INFO L255 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-11 17:24:10,944 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:24:10,958 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-11 17:24:10,958 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:24:10,959 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 17:24:10,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1167450993] [2024-10-11 17:24:10,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1167450993] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:24:10,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:24:10,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:24:10,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253727318] [2024-10-11 17:24:10,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:24:10,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 17:24:10,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 17:24:10,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 17:24:10,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 17:24:11,001 INFO L87 Difference]: Start difference. First operand has 27 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 21 states have internal predecessors, (29), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-11 17:24:11,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 17:24:11,023 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2024-10-11 17:24:11,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 17:24:11,026 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 30 [2024-10-11 17:24:11,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 17:24:11,031 INFO L225 Difference]: With dead ends: 26 [2024-10-11 17:24:11,031 INFO L226 Difference]: Without dead ends: 25 [2024-10-11 17:24:11,033 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 17:24:11,036 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 17:24:11,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 17:24:11,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-10-11 17:24:11,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-10-11 17:24:11,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 19 states have internal predecessors, (23), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-11 17:24:11,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2024-10-11 17:24:11,068 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 31 transitions. Word has length 30 [2024-10-11 17:24:11,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 17:24:11,069 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 31 transitions. [2024-10-11 17:24:11,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-11 17:24:11,070 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2024-10-11 17:24:11,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-10-11 17:24:11,071 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 17:24:11,071 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:24:11,079 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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)] Ended with exit code 0 [2024-10-11 17:24:11,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 17:24:11,272 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-11 17:24:11,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:24:11,273 INFO L85 PathProgramCache]: Analyzing trace with hash -343992321, now seen corresponding path program 1 times [2024-10-11 17:24:11,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 17:24:11,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [533187304] [2024-10-11 17:24:11,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:24:11,274 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 [2024-10-11 17:24:11,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 17:24:11,276 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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) [2024-10-11 17:24:11,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 17:24:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:24:11,496 INFO L255 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 17:24:11,500 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:24:11,625 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 17:24:11,628 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:24:11,753 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 17:24:11,755 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 17:24:11,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [533187304] [2024-10-11 17:24:11,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [533187304] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:24:11,755 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 17:24:11,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2024-10-11 17:24:11,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583409010] [2024-10-11 17:24:11,756 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 17:24:11,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 17:24:11,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 17:24:11,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 17:24:11,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-11 17:24:11,759 INFO L87 Difference]: Start difference. First operand 25 states and 31 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 3 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-11 17:24:12,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 17:24:12,042 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2024-10-11 17:24:12,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 17:24:12,043 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 3 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) Word has length 32 [2024-10-11 17:24:12,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 17:24:12,045 INFO L225 Difference]: With dead ends: 31 [2024-10-11 17:24:12,045 INFO L226 Difference]: Without dead ends: 31 [2024-10-11 17:24:12,046 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-10-11 17:24:12,047 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 39 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 17:24:12,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 82 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 17:24:12,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-10-11 17:24:12,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2024-10-11 17:24:12,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 23 states have internal predecessors, (27), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-11 17:24:12,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2024-10-11 17:24:12,055 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 32 [2024-10-11 17:24:12,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 17:24:12,055 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2024-10-11 17:24:12,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 3 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-11 17:24:12,056 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2024-10-11 17:24:12,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-10-11 17:24:12,057 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 17:24:12,057 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:24:12,062 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 17:24:12,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 17:24:12,258 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-11 17:24:12,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:24:12,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1258253317, now seen corresponding path program 1 times [2024-10-11 17:24:12,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 17:24:12,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [205448849] [2024-10-11 17:24:12,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:24:12,259 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 [2024-10-11 17:24:12,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 17:24:12,263 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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) [2024-10-11 17:24:12,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 17:24:12,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:24:12,616 INFO L255 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 17:24:12,621 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:24:12,684 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 19 [2024-10-11 17:24:12,865 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:24:12,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 66 treesize of output 32 [2024-10-11 17:24:12,891 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-11 17:24:12,892 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:24:12,892 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 17:24:12,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [205448849] [2024-10-11 17:24:12,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [205448849] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:24:12,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:24:12,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 17:24:12,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652561689] [2024-10-11 17:24:12,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:24:12,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 17:24:12,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 17:24:12,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 17:24:12,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-11 17:24:12,895 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-11 17:24:13,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 17:24:13,308 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2024-10-11 17:24:13,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 17:24:13,308 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 32 [2024-10-11 17:24:13,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 17:24:13,309 INFO L225 Difference]: With dead ends: 35 [2024-10-11 17:24:13,309 INFO L226 Difference]: Without dead ends: 35 [2024-10-11 17:24:13,310 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-10-11 17:24:13,311 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 24 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 17:24:13,311 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 85 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 17:24:13,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-10-11 17:24:13,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2024-10-11 17:24:13,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 25 states have (on average 1.24) internal successors, (31), 26 states have internal predecessors, (31), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-11 17:24:13,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2024-10-11 17:24:13,316 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 32 [2024-10-11 17:24:13,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 17:24:13,317 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2024-10-11 17:24:13,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-11 17:24:13,317 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2024-10-11 17:24:13,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-10-11 17:24:13,318 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 17:24:13,318 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:24:13,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 17:24:13,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 17:24:13,523 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-11 17:24:13,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:24:13,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1315511619, now seen corresponding path program 1 times [2024-10-11 17:24:13,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 17:24:13,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [231674326] [2024-10-11 17:24:13,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:24:13,526 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 [2024-10-11 17:24:13,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 17:24:13,531 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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) [2024-10-11 17:24:13,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 17:24:13,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:24:13,762 INFO L255 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 17:24:13,765 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:24:13,825 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-11 17:24:13,825 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:24:13,825 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 17:24:13,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [231674326] [2024-10-11 17:24:13,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [231674326] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:24:13,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:24:13,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 17:24:13,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640135216] [2024-10-11 17:24:13,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:24:13,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:24:13,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 17:24:13,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:24:13,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:24:13,831 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-11 17:24:14,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 17:24:14,106 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2024-10-11 17:24:14,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 17:24:14,106 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 32 [2024-10-11 17:24:14,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 17:24:14,108 INFO L225 Difference]: With dead ends: 34 [2024-10-11 17:24:14,109 INFO L226 Difference]: Without dead ends: 34 [2024-10-11 17:24:14,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-11 17:24:14,110 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 29 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 17:24:14,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 83 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 17:24:14,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-10-11 17:24:14,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2024-10-11 17:24:14,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 25 states have (on average 1.2) internal successors, (30), 26 states have internal predecessors, (30), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-11 17:24:14,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2024-10-11 17:24:14,120 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 32 [2024-10-11 17:24:14,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 17:24:14,120 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2024-10-11 17:24:14,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-11 17:24:14,120 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2024-10-11 17:24:14,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-10-11 17:24:14,121 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 17:24:14,121 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:24:14,131 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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)] Ended with exit code 0 [2024-10-11 17:24:14,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 17:24:14,322 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-11 17:24:14,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:24:14,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1005991149, now seen corresponding path program 1 times [2024-10-11 17:24:14,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 17:24:14,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1934274824] [2024-10-11 17:24:14,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:24:14,324 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 [2024-10-11 17:24:14,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 17:24:14,329 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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) [2024-10-11 17:24:14,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 17:24:14,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:24:14,647 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-10-11 17:24:14,655 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:24:14,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-11 17:24:14,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 19 [2024-10-11 17:24:14,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-11 17:24:14,955 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-11 17:24:15,087 INFO L349 Elim1Store]: treesize reduction 21, result has 44.7 percent of original size [2024-10-11 17:24:15,088 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 38 [2024-10-11 17:24:15,106 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:24:15,107 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 7 [2024-10-11 17:24:15,135 INFO L349 Elim1Store]: treesize reduction 6, result has 57.1 percent of original size [2024-10-11 17:24:15,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2024-10-11 17:24:15,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 32 [2024-10-11 17:24:15,315 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2024-10-11 17:24:15,393 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:24:15,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 66 treesize of output 32 [2024-10-11 17:24:15,432 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 17:24:15,433 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:24:15,856 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_~head~0.base_45 (_ BitVec 32)) (v_ArrVal_609 (Array (_ BitVec 32) (_ BitVec 8)))) (or (not (= (_ bv2 32) (let ((.cse0 (select (store |c_#memory_int#1| v_~head~0.base_45 v_ArrVal_609) c_~head~0.base))) (concat (concat (concat (select .cse0 (bvadd c_~head~0.offset (_ bv3 32))) (select .cse0 (bvadd c_~head~0.offset (_ bv2 32)))) (select .cse0 (bvadd c_~head~0.offset (_ bv1 32)))) (select .cse0 c_~head~0.offset))))) (not (= (_ bv0 1) (select |c_#valid| v_~head~0.base_45))))) is different from false [2024-10-11 17:24:15,862 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 17:24:15,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1934274824] [2024-10-11 17:24:15,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1934274824] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:24:15,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1366236230] [2024-10-11 17:24:15,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:24:15,863 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-10-11 17:24:15,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/cvc4 [2024-10-11 17:24:15,866 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-10-11 17:24:15,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-10-11 17:24:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:24:16,354 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-10-11 17:24:16,358 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:24:16,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-11 17:24:16,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2024-10-11 17:24:16,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-11 17:24:16,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-11 17:24:16,845 INFO L349 Elim1Store]: treesize reduction 21, result has 44.7 percent of original size [2024-10-11 17:24:16,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 38 [2024-10-11 17:24:16,886 INFO L349 Elim1Store]: treesize reduction 6, result has 57.1 percent of original size [2024-10-11 17:24:16,887 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2024-10-11 17:24:17,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 36 [2024-10-11 17:24:17,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-10-11 17:24:17,315 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 17:24:17,315 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:24:17,572 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_760 (Array (_ BitVec 32) (_ BitVec 8))) (v_~head~0.base_51 (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| v_~head~0.base_51))) (not (= (_ bv2 32) (let ((.cse0 (select (store |c_#memory_int#1| v_~head~0.base_51 v_ArrVal_760) c_~head~0.base))) (concat (concat (concat (select .cse0 (bvadd c_~head~0.offset (_ bv3 32))) (select .cse0 (bvadd c_~head~0.offset (_ bv2 32)))) (select .cse0 (bvadd c_~head~0.offset (_ bv1 32)))) (select .cse0 c_~head~0.offset))))))) is different from false [2024-10-11 17:24:17,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1366236230] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:24:17,577 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 17:24:17,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 21 [2024-10-11 17:24:17,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271991682] [2024-10-11 17:24:17,578 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 17:24:17,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-11 17:24:17,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 17:24:17,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-11 17:24:17,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=496, Unknown=2, NotChecked=90, Total=650 [2024-10-11 17:24:17,581 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand has 21 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-11 17:24:19,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 17:24:19,701 INFO L93 Difference]: Finished difference Result 41 states and 49 transitions. [2024-10-11 17:24:19,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 17:24:19,702 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 35 [2024-10-11 17:24:19,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 17:24:19,702 INFO L225 Difference]: With dead ends: 41 [2024-10-11 17:24:19,702 INFO L226 Difference]: Without dead ends: 41 [2024-10-11 17:24:19,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=140, Invalid=988, Unknown=2, NotChecked=130, Total=1260 [2024-10-11 17:24:19,704 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 50 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-11 17:24:19,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 192 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-11 17:24:19,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-10-11 17:24:19,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 36. [2024-10-11 17:24:19,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 29 states have internal predecessors, (34), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-11 17:24:19,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2024-10-11 17:24:19,709 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 35 [2024-10-11 17:24:19,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 17:24:19,710 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2024-10-11 17:24:19,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-11 17:24:19,710 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2024-10-11 17:24:19,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-10-11 17:24:19,711 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 17:24:19,711 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:24:19,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 17:24:19,918 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2024-10-11 17:24:20,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-10-11 17:24:20,113 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-11 17:24:20,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:24:20,113 INFO L85 PathProgramCache]: Analyzing trace with hash -948732847, now seen corresponding path program 1 times [2024-10-11 17:24:20,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 17:24:20,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [745985471] [2024-10-11 17:24:20,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:24:20,114 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 [2024-10-11 17:24:20,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 17:24:20,118 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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) [2024-10-11 17:24:20,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 (8)] Waiting until timeout for monitored process [2024-10-11 17:24:20,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:24:20,365 INFO L255 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 17:24:20,367 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:24:20,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-11 17:24:20,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2024-10-11 17:24:20,542 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 17:24:20,542 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:24:20,751 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 17:24:20,751 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 17:24:20,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [745985471] [2024-10-11 17:24:20,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [745985471] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:24:20,752 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 17:24:20,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 17 [2024-10-11 17:24:20,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425986499] [2024-10-11 17:24:20,752 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 17:24:20,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-11 17:24:20,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 17:24:20,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-11 17:24:20,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2024-10-11 17:24:20,753 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand has 17 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 14 states have internal predecessors, (32), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 17:24:21,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 17:24:21,681 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2024-10-11 17:24:21,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-11 17:24:21,682 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 14 states have internal predecessors, (32), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 35 [2024-10-11 17:24:21,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 17:24:21,682 INFO L225 Difference]: With dead ends: 42 [2024-10-11 17:24:21,683 INFO L226 Difference]: Without dead ends: 42 [2024-10-11 17:24:21,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=210, Invalid=846, Unknown=0, NotChecked=0, Total=1056 [2024-10-11 17:24:21,684 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 92 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 17:24:21,685 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 129 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 17:24:21,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-10-11 17:24:21,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 37. [2024-10-11 17:24:21,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 30 states have internal predecessors, (34), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-11 17:24:21,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2024-10-11 17:24:21,691 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 35 [2024-10-11 17:24:21,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 17:24:21,691 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2024-10-11 17:24:21,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 14 states have internal predecessors, (32), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 17:24:21,695 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2024-10-11 17:24:21,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-11 17:24:21,696 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 17:24:21,696 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:24:21,705 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 (8)] Ended with exit code 0 [2024-10-11 17:24:21,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 17:24:21,897 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-11 17:24:21,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:24:21,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1643473221, now seen corresponding path program 2 times [2024-10-11 17:24:21,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 17:24:21,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1712219592] [2024-10-11 17:24:21,899 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 17:24:21,899 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 [2024-10-11 17:24:21,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 17:24:21,902 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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) [2024-10-11 17:24:21,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 (9)] Waiting until timeout for monitored process [2024-10-11 17:24:22,300 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 17:24:22,301 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 17:24:22,317 INFO L255 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 78 conjuncts are in the unsatisfiable core [2024-10-11 17:24:22,323 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:24:22,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-11 17:24:22,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 17 [2024-10-11 17:24:22,554 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-11 17:24:22,564 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-11 17:24:22,665 INFO L349 Elim1Store]: treesize reduction 34, result has 37.0 percent of original size [2024-10-11 17:24:22,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 35 [2024-10-11 17:24:22,687 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 20 [2024-10-11 17:24:22,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2024-10-11 17:24:22,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2024-10-11 17:24:22,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 43 [2024-10-11 17:24:23,251 INFO L349 Elim1Store]: treesize reduction 21, result has 44.7 percent of original size [2024-10-11 17:24:23,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 23 [2024-10-11 17:24:23,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 17:24:23,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 47 [2024-10-11 17:24:23,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 17:24:23,284 INFO L349 Elim1Store]: treesize reduction 6, result has 66.7 percent of original size [2024-10-11 17:24:23,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 26 [2024-10-11 17:24:23,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 24 [2024-10-11 17:24:23,745 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-11 17:24:23,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 36 [2024-10-11 17:24:23,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-11 17:24:23,882 INFO L349 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2024-10-11 17:24:23,882 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 77 treesize of output 45 [2024-10-11 17:24:23,936 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 17:24:23,937 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:24:24,610 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:24:24,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 200 treesize of output 171 [2024-10-11 17:24:24,621 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:24:24,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 140 treesize of output 135 [2024-10-11 17:24:24,639 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:24:24,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 128 treesize of output 123 [2024-10-11 17:24:24,686 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_4 (Array (_ BitVec 32) (_ BitVec 8))) (v_~head~0.base_75 (_ BitVec 32)) (v_arrayElimArr_5 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_6 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 1) (select |c_#valid| v_~head~0.base_75))) (not (= (_ bv2 32) (let ((.cse2 (bvadd c_~head~0.offset (_ bv4 32)))) (let ((.cse0 (select (store |c_#memory_int#1| v_~head~0.base_75 v_arrayElimArr_4) (select (select (store |c_#memory_$Pointer$#1.base| v_~head~0.base_75 v_arrayElimArr_5) c_~head~0.base) .cse2))) (.cse1 (select (select (store |c_#memory_$Pointer$#1.offset| v_~head~0.base_75 v_arrayElimArr_6) c_~head~0.base) .cse2))) (concat (concat (concat (select .cse0 (bvadd .cse1 (_ bv3 32))) (select .cse0 (bvadd .cse1 (_ bv2 32)))) (select .cse0 (bvadd .cse1 (_ bv1 32)))) (select .cse0 .cse1)))))) (not (= (_ bv3 8) (select v_arrayElimArr_4 (_ bv0 32)))) (not (= c_~head~0.offset (select v_arrayElimArr_6 (_ bv4 32)))) (not (= (select v_arrayElimArr_5 (_ bv4 32)) c_~head~0.base)) (not (= (_ bv0 8) (select v_arrayElimArr_4 (_ bv2 32)))) (not (= (_ bv0 8) (select v_arrayElimArr_4 (_ bv1 32)))))) is different from false [2024-10-11 17:24:24,689 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 17:24:24,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1712219592] [2024-10-11 17:24:24,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1712219592] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:24:24,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1204967728] [2024-10-11 17:24:24,689 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 17:24:24,689 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-10-11 17:24:24,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/cvc4 [2024-10-11 17:24:24,690 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-10-11 17:24:24,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-10-11 17:24:25,212 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 17:24:25,213 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 17:24:25,221 INFO L255 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 85 conjuncts are in the unsatisfiable core [2024-10-11 17:24:25,226 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:24:25,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-11 17:24:25,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2024-10-11 17:24:25,558 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-11 17:24:25,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-11 17:24:25,584 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 43 [2024-10-11 17:24:25,821 INFO L349 Elim1Store]: treesize reduction 21, result has 44.7 percent of original size [2024-10-11 17:24:25,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 38 [2024-10-11 17:24:25,860 INFO L349 Elim1Store]: treesize reduction 34, result has 37.0 percent of original size [2024-10-11 17:24:25,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 35 [2024-10-11 17:24:26,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2024-10-11 17:24:26,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2024-10-11 17:24:26,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 40 [2024-10-11 17:24:26,467 INFO L349 Elim1Store]: treesize reduction 21, result has 44.7 percent of original size [2024-10-11 17:24:26,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 23 [2024-10-11 17:24:26,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 17:24:26,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 65 [2024-10-11 17:24:26,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 17:24:26,505 INFO L349 Elim1Store]: treesize reduction 29, result has 46.3 percent of original size [2024-10-11 17:24:26,506 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 102 treesize of output 70 [2024-10-11 17:24:26,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 17:24:26,545 INFO L349 Elim1Store]: treesize reduction 6, result has 66.7 percent of original size [2024-10-11 17:24:26,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 26 [2024-10-11 17:24:27,527 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-11 17:24:27,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 132 treesize of output 71 [2024-10-11 17:24:27,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-11 17:24:27,817 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 17:24:27,817 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:24:28,318 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:24:28,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 200 treesize of output 195 [2024-10-11 17:24:28,352 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:24:28,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 188 treesize of output 159 [2024-10-11 17:24:28,365 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:24:28,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 128 treesize of output 123 [2024-10-11 17:24:28,422 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_~head~0.base_81 (_ BitVec 32)) (v_arrayElimArr_11 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_12 (Array (_ BitVec 32) (_ BitVec 8))) (v_arrayElimArr_13 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv3 8) (select v_arrayElimArr_12 (_ bv0 32)))) (not (= (_ bv0 8) (select v_arrayElimArr_12 (_ bv2 32)))) (not (= (_ bv2 32) (let ((.cse2 (bvadd c_~head~0.offset (_ bv4 32)))) (let ((.cse0 (select (store |c_#memory_int#1| v_~head~0.base_81 v_arrayElimArr_12) (select (select (store |c_#memory_$Pointer$#1.base| v_~head~0.base_81 v_arrayElimArr_11) c_~head~0.base) .cse2))) (.cse1 (select (select (store |c_#memory_$Pointer$#1.offset| v_~head~0.base_81 v_arrayElimArr_13) c_~head~0.base) .cse2))) (concat (concat (concat (select .cse0 (bvadd (_ bv3 32) .cse1)) (select .cse0 (bvadd (_ bv2 32) .cse1))) (select .cse0 (bvadd (_ bv1 32) .cse1))) (select .cse0 .cse1)))))) (not (= (_ bv0 1) (select |c_#valid| v_~head~0.base_81))) (not (= c_~head~0.base (select v_arrayElimArr_11 (_ bv4 32)))) (not (= c_~head~0.offset (select v_arrayElimArr_13 (_ bv4 32)))) (not (= (_ bv0 8) (select v_arrayElimArr_12 (_ bv1 32)))) (not (= (_ bv0 8) (select v_arrayElimArr_12 (_ bv3 32)))))) is different from false [2024-10-11 17:24:28,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1204967728] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:24:28,428 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 17:24:28,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 33 [2024-10-11 17:24:28,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102031727] [2024-10-11 17:24:28,428 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 17:24:28,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-10-11 17:24:28,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 17:24:28,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-10-11 17:24:28,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1238, Unknown=2, NotChecked=142, Total=1482 [2024-10-11 17:24:28,431 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand has 33 states, 27 states have (on average 1.7777777777777777) internal successors, (48), 29 states have internal predecessors, (48), 5 states have call successors, (6), 3 states have call predecessors, (6), 7 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2024-10-11 17:24:37,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 17:24:37,487 INFO L93 Difference]: Finished difference Result 48 states and 55 transitions. [2024-10-11 17:24:37,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-11 17:24:37,488 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 27 states have (on average 1.7777777777777777) internal successors, (48), 29 states have internal predecessors, (48), 5 states have call successors, (6), 3 states have call predecessors, (6), 7 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) Word has length 38 [2024-10-11 17:24:37,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 17:24:37,489 INFO L225 Difference]: With dead ends: 48 [2024-10-11 17:24:37,489 INFO L226 Difference]: Without dead ends: 48 [2024-10-11 17:24:37,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=231, Invalid=2325, Unknown=2, NotChecked=198, Total=2756 [2024-10-11 17:24:37,491 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 59 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2024-10-11 17:24:37,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 266 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2024-10-11 17:24:37,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-10-11 17:24:37,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 40. [2024-10-11 17:24:37,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 32 states have (on average 1.1875) internal successors, (38), 33 states have internal predecessors, (38), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-11 17:24:37,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2024-10-11 17:24:37,495 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 38 [2024-10-11 17:24:37,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 17:24:37,495 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2024-10-11 17:24:37,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 27 states have (on average 1.7777777777777777) internal successors, (48), 29 states have internal predecessors, (48), 5 states have call successors, (6), 3 states have call predecessors, (6), 7 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2024-10-11 17:24:37,495 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2024-10-11 17:24:37,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-11 17:24:37,496 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 17:24:37,496 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:24:37,506 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-10-11 17:24:37,706 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 (9)] Forceful destruction successful, exit code 0 [2024-10-11 17:24:37,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 17:24:37,897 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-11 17:24:37,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:24:37,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1700731523, now seen corresponding path program 2 times [2024-10-11 17:24:37,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 17:24:37,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1201022026] [2024-10-11 17:24:37,899 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 17:24:37,899 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 [2024-10-11 17:24:37,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 17:24:37,900 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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) [2024-10-11 17:24:37,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 (11)] Waiting until timeout for monitored process [2024-10-11 17:24:38,203 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 17:24:38,203 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 17:24:38,213 INFO L255 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-10-11 17:24:38,216 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:24:38,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-11 17:24:38,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-11 17:24:38,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-11 17:24:38,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2024-10-11 17:24:38,494 INFO L349 Elim1Store]: treesize reduction 21, result has 44.7 percent of original size [2024-10-11 17:24:38,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 24 [2024-10-11 17:24:38,520 INFO L349 Elim1Store]: treesize reduction 6, result has 57.1 percent of original size [2024-10-11 17:24:38,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2024-10-11 17:24:38,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-10-11 17:24:38,731 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-10-11 17:24:38,731 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 15 [2024-10-11 17:24:38,785 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 17:24:38,785 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:24:39,172 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:24:39,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2024-10-11 17:24:39,296 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 17:24:39,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1201022026] [2024-10-11 17:24:39,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1201022026] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:24:39,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1811349987] [2024-10-11 17:24:39,297 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 17:24:39,297 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-10-11 17:24:39,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/cvc4 [2024-10-11 17:24:39,299 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-10-11 17:24:39,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2024-10-11 17:24:39,683 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 17:24:39,683 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 17:24:39,690 INFO L255 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-10-11 17:24:39,693 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:24:39,711 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-11 17:24:39,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-11 17:24:39,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2024-10-11 17:24:39,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-11 17:24:39,841 INFO L349 Elim1Store]: treesize reduction 6, result has 57.1 percent of original size [2024-10-11 17:24:39,842 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2024-10-11 17:24:39,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2024-10-11 17:24:39,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-10-11 17:24:39,972 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-10-11 17:24:39,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 15 [2024-10-11 17:24:39,979 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 17:24:39,979 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:24:40,166 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:24:40,166 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2024-10-11 17:24:40,182 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_17 (Array (_ BitVec 32) (_ BitVec 32))) (v_~head~0.base_93 (_ BitVec 32))) (or (not (= (select (select (store |c_#memory_$Pointer$#1.base| v_~head~0.base_93 v_arrayElimArr_17) c_~head~0.base) (bvadd c_~head~0.offset (_ bv4 32))) (_ bv0 32))) (not (= c_~head~0.base (select v_arrayElimArr_17 (_ bv4 32)))) (not (= (_ bv0 1) (select |c_#valid| v_~head~0.base_93))))) is different from false [2024-10-11 17:24:40,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1811349987] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:24:40,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 17:24:40,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 18 [2024-10-11 17:24:40,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550038042] [2024-10-11 17:24:40,185 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 17:24:40,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-11 17:24:40,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 17:24:40,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-11 17:24:40,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=405, Unknown=11, NotChecked=40, Total=506 [2024-10-11 17:24:40,186 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand has 18 states, 16 states have (on average 2.0) internal successors, (32), 15 states have internal predecessors, (32), 3 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-11 17:24:42,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 17:24:42,560 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions. [2024-10-11 17:24:42,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-11 17:24:42,561 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 2.0) internal successors, (32), 15 states have internal predecessors, (32), 3 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 38 [2024-10-11 17:24:42,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 17:24:42,561 INFO L225 Difference]: With dead ends: 45 [2024-10-11 17:24:42,561 INFO L226 Difference]: Without dead ends: 45 [2024-10-11 17:24:42,562 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 83 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=246, Invalid=1387, Unknown=11, NotChecked=78, Total=1722 [2024-10-11 17:24:42,562 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 77 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-11 17:24:42,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 165 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-11 17:24:42,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-10-11 17:24:42,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 40. [2024-10-11 17:24:42,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 32 states have (on average 1.15625) internal successors, (37), 33 states have internal predecessors, (37), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-11 17:24:42,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2024-10-11 17:24:42,566 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 45 transitions. Word has length 38 [2024-10-11 17:24:42,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 17:24:42,567 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 45 transitions. [2024-10-11 17:24:42,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 2.0) internal successors, (32), 15 states have internal predecessors, (32), 3 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-11 17:24:42,567 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2024-10-11 17:24:42,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-11 17:24:42,568 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 17:24:42,568 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:24:42,574 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2024-10-11 17:24:42,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 (11)] Forceful destruction successful, exit code 0 [2024-10-11 17:24:42,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,11 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 17:24:42,969 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-11 17:24:42,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:24:42,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1072445997, now seen corresponding path program 3 times [2024-10-11 17:24:42,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 17:24:42,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [606334705] [2024-10-11 17:24:42,970 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 17:24:42,970 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 [2024-10-11 17:24:42,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 17:24:42,971 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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) [2024-10-11 17:24:42,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 (13)] Waiting until timeout for monitored process [2024-10-11 17:24:43,633 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-10-11 17:24:43,633 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2024-10-11 17:24:43,633 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 17:24:43,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 17:24:43,946 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-10-11 17:24:43,946 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 17:24:43,947 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2024-10-11 17:24:43,948 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2024-10-11 17:24:43,962 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 (13)] Forceful destruction successful, exit code 0 [2024-10-11 17:24:44,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 17:24:44,152 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1] [2024-10-11 17:24:44,193 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 17:24:44,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 05:24:44 BoogieIcfgContainer [2024-10-11 17:24:44,198 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 17:24:44,199 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 17:24:44,199 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 17:24:44,199 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 17:24:44,200 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:24:10" (3/4) ... [2024-10-11 17:24:44,201 INFO L133 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-11 17:24:44,256 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 17:24:44,256 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 17:24:44,256 INFO L158 Benchmark]: Toolchain (without parser) took 35043.40ms. Allocated memory was 67.1MB in the beginning and 209.7MB in the end (delta: 142.6MB). Free memory was 33.8MB in the beginning and 137.7MB in the end (delta: -103.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-10-11 17:24:44,257 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 46.1MB. Free memory is still 24.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 17:24:44,257 INFO L158 Benchmark]: CACSL2BoogieTranslator took 553.08ms. Allocated memory is still 67.1MB. Free memory was 33.6MB in the beginning and 44.2MB in the end (delta: -10.6MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2024-10-11 17:24:44,257 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.91ms. Allocated memory is still 67.1MB. Free memory was 44.2MB in the beginning and 42.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 17:24:44,257 INFO L158 Benchmark]: Boogie Preprocessor took 75.18ms. Allocated memory is still 67.1MB. Free memory was 42.3MB in the beginning and 39.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 17:24:44,258 INFO L158 Benchmark]: RCFGBuilder took 610.18ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 39.4MB in the beginning and 51.9MB in the end (delta: -12.6MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2024-10-11 17:24:44,258 INFO L158 Benchmark]: TraceAbstraction took 33681.89ms. Allocated memory was 81.8MB in the beginning and 209.7MB in the end (delta: 127.9MB). Free memory was 51.5MB in the beginning and 140.8MB in the end (delta: -89.3MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. [2024-10-11 17:24:44,259 INFO L158 Benchmark]: Witness Printer took 56.89ms. Allocated memory is still 209.7MB. Free memory was 140.8MB in the beginning and 137.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 17:24:44,260 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 46.1MB. Free memory is still 24.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 553.08ms. Allocated memory is still 67.1MB. Free memory was 33.6MB in the beginning and 44.2MB in the end (delta: -10.6MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.91ms. Allocated memory is still 67.1MB. Free memory was 44.2MB in the beginning and 42.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.18ms. Allocated memory is still 67.1MB. Free memory was 42.3MB in the beginning and 39.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 610.18ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 39.4MB in the beginning and 51.9MB in the end (delta: -12.6MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. * TraceAbstraction took 33681.89ms. Allocated memory was 81.8MB in the beginning and 209.7MB in the end (delta: 127.9MB). Free memory was 51.5MB in the beginning and 140.8MB in the end (delta: -89.3MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. * Witness Printer took 56.89ms. Allocated memory is still 209.7MB. Free memory was 140.8MB in the beginning and 137.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * 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: 12]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L533] mlist *head; [L554] int i; [L555] mlist *mylist, *temp; VAL [head={0:0}] [L556] CALL insert_list(mylist,2) VAL [\old(k)=2, head={0:0}] [L542] l = (mlist*)malloc(sizeof(mlist)) [L543] l->key = k VAL [\old(k)=2, head={0:0}, k=2, l={-2147483646:0}] [L544] COND TRUE head==((void *)0) [L545] l->next = ((void *)0) VAL [\old(k)=2, head={0:0}, k=2, l={-2147483646:0}] [L550] head = l [L551] return 0; [L556] RET insert_list(mylist,2) VAL [head={-2147483646:0}, mylist={6:7}] [L557] CALL insert_list(mylist,5) VAL [\old(k)=5, head={-2147483646:0}] [L542] l = (mlist*)malloc(sizeof(mlist)) [L543] l->key = k VAL [\old(k)=5, head={-2147483646:0}, k=5, l={-2147483647:0}] [L544] COND FALSE !(head==((void *)0)) [L547] l->key = k [L548] l->next = head VAL [\old(k)=5, head={-2147483646:0}, l={-2147483647:0}] [L550] head = l [L551] return 0; [L557] RET insert_list(mylist,5) VAL [head={-2147483647:0}, mylist={6:7}] [L558] CALL insert_list(mylist,1) VAL [\old(k)=1, head={-2147483647:0}] [L542] l = (mlist*)malloc(sizeof(mlist)) [L543] l->key = k VAL [\old(k)=1, head={-2147483647:0}, k=1, l={1073741825:0}] [L544] COND FALSE !(head==((void *)0)) [L547] l->key = k [L548] l->next = head VAL [\old(k)=1, head={-2147483647:0}, l={1073741825:0}] [L550] head = l [L551] return 0; [L558] RET insert_list(mylist,1) VAL [head={1073741825:0}, mylist={6:7}] [L559] CALL insert_list(mylist,3) VAL [\old(k)=3, head={1073741825:0}] [L542] l = (mlist*)malloc(sizeof(mlist)) [L543] l->key = k VAL [\old(k)=3, head={1073741825:0}, k=3, l={3:0}] [L544] COND FALSE !(head==((void *)0)) [L547] l->key = k [L548] l->next = head VAL [\old(k)=3, head={1073741825:0}, l={3:0}] [L550] head = l [L551] return 0; [L559] RET insert_list(mylist,3) VAL [head={3:0}, mylist={6:7}] [L560] CALL, EXPR search_list(head,2) [L535] l = head VAL [head={3:0}, k=2, l={3:0}] [L536] l!=((void *)0) && l->key!=k VAL [head={3:0}, k=2, l={3:0}] [L536] l!=((void *)0) && l->key!=k [L536] EXPR l->key [L536] l!=((void *)0) && l->key!=k VAL [head={3:0}, k=2, l={3:0}] [L536] COND TRUE l!=((void *)0) && l->key!=k [L537] EXPR l->next [L537] l = l->next [L536] l!=((void *)0) && l->key!=k VAL [head={3:0}, k=2, l={1073741825:0}] [L536] l!=((void *)0) && l->key!=k [L536] EXPR l->key [L536] l!=((void *)0) && l->key!=k VAL [head={3:0}, k=2, l={1073741825:0}] [L536] COND TRUE l!=((void *)0) && l->key!=k [L537] EXPR l->next [L537] l = l->next [L536] l!=((void *)0) && l->key!=k VAL [head={3:0}, k=2, l={-2147483647:0}] [L536] l!=((void *)0) && l->key!=k [L536] EXPR l->key [L536] l!=((void *)0) && l->key!=k VAL [head={3:0}, k=2, l={-2147483647:0}] [L536] COND TRUE l!=((void *)0) && l->key!=k [L537] EXPR l->next [L537] l = l->next [L536] l!=((void *)0) && l->key!=k VAL [head={3:0}, k=2, l={-2147483646:0}] [L536] l!=((void *)0) && l->key!=k [L536] EXPR l->key [L536] l!=((void *)0) && l->key!=k VAL [head={3:0}, k=2, l={-2147483646:0}] [L536] COND FALSE !(l!=((void *)0) && l->key!=k) [L539] return l; [L560] RET, EXPR search_list(head,2) [L560] temp = search_list(head,2) [L561] EXPR temp->key [L561] CALL __VERIFIER_assert(temp->key==1) [L14] COND TRUE !(cond) [L15] CALL reach_error() [L12] COND FALSE !(0) VAL [head={3:0}] [L12] __assert_fail ("0", "list_search-1.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [head={3:0}] - UnprovableResult [Line: 553]: 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 2 procedures, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 33.6s, OverallIterations: 9, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 15.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 370 SdHoareTripleChecker+Valid, 11.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 370 mSDsluCounter, 1029 SdHoareTripleChecker+Invalid, 11.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 877 mSDsCounter, 97 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1832 IncrementalHoareTripleChecker+Invalid, 1929 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 97 mSolverCounterUnsat, 152 mSDtfsCounter, 1832 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 597 GetRequests, 413 SyntacticMatches, 1 SemanticMatches, 183 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 895 ImplicationChecksByTransitivity, 7.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=7, InterpolantAutomatonStates: 105, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 27 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 10.7s InterpolantComputationTime, 424 NumberOfCodeBlocks, 424 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 437 ConstructedInterpolants, 16 QuantifiedInterpolants, 5998 SizeOfPredicates, 79 NumberOfNonLiveVariables, 3418 ConjunctsInSsa, 356 ConjunctsInUnsatCore, 13 InterpolantComputations, 3 PerfectInterpolantSequences, 247/360 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! [2024-10-11 17:24:44,300 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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)