./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memcleanup.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 112ef0f8366461020cac5f2ac7dec2d7e41f31b24e653cd7734885d2bb23b087 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 14:18:22,320 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 14:18:22,402 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-20 14:18:22,407 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 14:18:22,407 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 14:18:22,437 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 14:18:22,438 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 14:18:22,439 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 14:18:22,440 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 14:18:22,444 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 14:18:22,444 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 14:18:22,445 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 14:18:22,445 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 14:18:22,446 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 14:18:22,446 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 14:18:22,446 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 14:18:22,447 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 14:18:22,447 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 14:18:22,447 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 14:18:22,447 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 14:18:22,448 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 14:18:22,448 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 14:18:22,449 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 14:18:22,449 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 14:18:22,449 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 14:18:22,449 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 14:18:22,450 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 14:18:22,450 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 14:18:22,450 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 14:18:22,451 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 14:18:22,451 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 14:18:22,451 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 14:18:22,452 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 14:18:22,452 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 14:18:22,452 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 14:18:22,453 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 14:18:22,453 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 14:18:22,453 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 14:18:22,454 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 14:18:22,454 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 14:18:22,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 14:18:22,455 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 14:18:22,455 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 14:18:22,455 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 14:18:22,455 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 14:18:22,455 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 112ef0f8366461020cac5f2ac7dec2d7e41f31b24e653cd7734885d2bb23b087 [2024-11-20 14:18:22,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 14:18:22,763 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 14:18:22,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 14:18:22,768 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 14:18:22,768 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 14:18:22,770 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-2.i [2024-11-20 14:18:24,293 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 14:18:24,588 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 14:18:24,589 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-2.i [2024-11-20 14:18:24,611 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b154d4ef1/da5c60c9b1e242419589be36ba1678e1/FLAG207b04cda [2024-11-20 14:18:24,867 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b154d4ef1/da5c60c9b1e242419589be36ba1678e1 [2024-11-20 14:18:24,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 14:18:24,872 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 14:18:24,873 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 14:18:24,873 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 14:18:24,879 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 14:18:24,880 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:18:24" (1/1) ... [2024-11-20 14:18:24,881 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5144202b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:18:24, skipping insertion in model container [2024-11-20 14:18:24,881 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:18:24" (1/1) ... [2024-11-20 14:18:24,933 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 14:18:25,373 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:25,429 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:25,439 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:25,442 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:25,448 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:25,467 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:25,468 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:25,471 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:25,474 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:25,475 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:25,476 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:25,482 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:25,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 14:18:25,507 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-11-20 14:18:25,508 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@23468086 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:18:25, skipping insertion in model container [2024-11-20 14:18:25,509 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 14:18:25,509 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-20 14:18:25,511 INFO L158 Benchmark]: Toolchain (without parser) took 638.61ms. Allocated memory was 136.3MB in the beginning and 199.2MB in the end (delta: 62.9MB). Free memory was 77.1MB in the beginning and 165.4MB in the end (delta: -88.3MB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. [2024-11-20 14:18:25,512 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 136.3MB. Free memory is still 69.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 14:18:25,513 INFO L158 Benchmark]: CACSL2BoogieTranslator took 636.17ms. Allocated memory was 136.3MB in the beginning and 199.2MB in the end (delta: 62.9MB). Free memory was 77.1MB in the beginning and 165.4MB in the end (delta: -88.3MB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. [2024-11-20 14:18:25,514 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 136.3MB. Free memory is still 69.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 636.17ms. Allocated memory was 136.3MB in the beginning and 199.2MB in the end (delta: 62.9MB). Free memory was 77.1MB in the beginning and 165.4MB in the end (delta: -88.3MB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 753]: 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/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 112ef0f8366461020cac5f2ac7dec2d7e41f31b24e653cd7734885d2bb23b087 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 14:18:27,626 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 14:18:27,709 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2024-11-20 14:18:27,715 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 14:18:27,716 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 14:18:27,756 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 14:18:27,759 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 14:18:27,759 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 14:18:27,760 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 14:18:27,761 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 14:18:27,761 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 14:18:27,762 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 14:18:27,762 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 14:18:27,763 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 14:18:27,765 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 14:18:27,765 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 14:18:27,765 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 14:18:27,766 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 14:18:27,766 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 14:18:27,770 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 14:18:27,770 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 14:18:27,771 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 14:18:27,771 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 14:18:27,772 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 14:18:27,772 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 14:18:27,773 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 14:18:27,773 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 14:18:27,773 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-20 14:18:27,773 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 14:18:27,774 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-20 14:18:27,774 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 14:18:27,774 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 14:18:27,774 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 14:18:27,775 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 14:18:27,776 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 14:18:27,776 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 14:18:27,777 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 14:18:27,777 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 14:18:27,777 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 14:18:27,777 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 14:18:27,778 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 14:18:27,778 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-20 14:18:27,778 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-20 14:18:27,778 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 14:18:27,780 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 14:18:27,780 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 14:18:27,780 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 14:18:27,780 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 112ef0f8366461020cac5f2ac7dec2d7e41f31b24e653cd7734885d2bb23b087 [2024-11-20 14:18:28,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 14:18:28,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 14:18:28,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 14:18:28,104 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 14:18:28,105 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 14:18:28,106 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-2.i [2024-11-20 14:18:29,532 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 14:18:29,813 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 14:18:29,815 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-2.i [2024-11-20 14:18:29,835 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71e82b484/4b20a8bf6dbc4973987b23c5a0052269/FLAG96cc026d1 [2024-11-20 14:18:29,853 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71e82b484/4b20a8bf6dbc4973987b23c5a0052269 [2024-11-20 14:18:29,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 14:18:29,857 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 14:18:29,860 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 14:18:29,861 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 14:18:29,866 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 14:18:29,866 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:18:29" (1/1) ... [2024-11-20 14:18:29,867 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@480e4c8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:18:29, skipping insertion in model container [2024-11-20 14:18:29,867 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:18:29" (1/1) ... [2024-11-20 14:18:29,925 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 14:18:30,306 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:30,341 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:30,352 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:30,356 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:30,362 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:30,373 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:30,374 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:30,376 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:30,380 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:30,381 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:30,382 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:30,387 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:30,396 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 14:18:30,413 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-20 14:18:30,423 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 14:18:30,447 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:30,476 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:30,478 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:30,480 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:30,485 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:30,496 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:30,497 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:30,499 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:30,499 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:30,500 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:30,501 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:30,505 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 14:18:30,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 14:18:30,510 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 14:18:30,587 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 14:18:30,634 INFO L204 MainTranslator]: Completed translation [2024-11-20 14:18:30,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:18:30 WrapperNode [2024-11-20 14:18:30,635 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 14:18:30,636 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 14:18:30,636 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 14:18:30,636 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 14:18:30,642 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:18:30" (1/1) ... [2024-11-20 14:18:30,669 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:18:30" (1/1) ... [2024-11-20 14:18:30,728 INFO L138 Inliner]: procedures = 179, calls = 221, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 747 [2024-11-20 14:18:30,732 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 14:18:30,732 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 14:18:30,732 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 14:18:30,732 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 14:18:30,744 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:18:30" (1/1) ... [2024-11-20 14:18:30,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:18:30" (1/1) ... [2024-11-20 14:18:30,760 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:18:30" (1/1) ... [2024-11-20 14:18:30,862 INFO L175 MemorySlicer]: Split 206 memory accesses to 2 slices as follows [204, 2]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 2]. The 50 writes are split as follows [50, 0]. [2024-11-20 14:18:30,863 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:18:30" (1/1) ... [2024-11-20 14:18:30,863 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:18:30" (1/1) ... [2024-11-20 14:18:30,902 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:18:30" (1/1) ... [2024-11-20 14:18:30,914 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:18:30" (1/1) ... [2024-11-20 14:18:30,922 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:18:30" (1/1) ... [2024-11-20 14:18:30,930 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:18:30" (1/1) ... [2024-11-20 14:18:30,942 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 14:18:30,943 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 14:18:30,944 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 14:18:30,944 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 14:18:30,944 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:18:30" (1/1) ... [2024-11-20 14:18:30,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 14:18:30,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 14:18:30,976 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 14:18:30,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 14:18:31,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-20 14:18:31,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-20 14:18:31,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-20 14:18:31,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-20 14:18:31,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-20 14:18:31,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-20 14:18:31,028 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-20 14:18:31,028 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-20 14:18:31,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 14:18:31,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 14:18:31,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 14:18:31,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 14:18:31,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-20 14:18:31,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-20 14:18:31,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 14:18:31,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-20 14:18:31,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-20 14:18:31,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-20 14:18:31,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-20 14:18:31,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 14:18:31,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 14:18:31,243 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 14:18:31,245 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 14:18:36,179 INFO L? ?]: Removed 110 outVars from TransFormulas that were not future-live. [2024-11-20 14:18:36,180 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 14:18:36,196 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 14:18:36,197 INFO L316 CfgBuilder]: Removed 40 assume(true) statements. [2024-11-20 14:18:36,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:18:36 BoogieIcfgContainer [2024-11-20 14:18:36,198 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 14:18:36,200 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 14:18:36,200 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 14:18:36,203 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 14:18:36,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 02:18:29" (1/3) ... [2024-11-20 14:18:36,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26b742d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:18:36, skipping insertion in model container [2024-11-20 14:18:36,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:18:30" (2/3) ... [2024-11-20 14:18:36,205 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26b742d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:18:36, skipping insertion in model container [2024-11-20 14:18:36,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:18:36" (3/3) ... [2024-11-20 14:18:36,206 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_nondet_test1-2.i [2024-11-20 14:18:36,221 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 14:18:36,222 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-20 14:18:36,277 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:18:36,284 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;@2fb0173d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:18:36,285 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-20 14:18:36,291 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 133 states have (on average 1.6390977443609023) internal successors, (218), 135 states have internal predecessors, (218), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 14:18:36,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-20 14:18:36,297 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:18:36,297 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:18:36,298 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:18:36,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:18:36,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1673007985, now seen corresponding path program 1 times [2024-11-20 14:18:36,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 14:18:36,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1791993051] [2024-11-20 14:18:36,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:18:36,317 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 [2024-11-20 14:18:36,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 14:18:36,320 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/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) [2024-11-20 14:18:36,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-20 14:18:36,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:18:36,446 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-20 14:18:36,451 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 14:18:36,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:18:36,459 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 14:18:36,460 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 14:18:36,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1791993051] [2024-11-20 14:18:36,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1791993051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:18:36,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:18:36,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:18:36,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81213107] [2024-11-20 14:18:36,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:18:36,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 14:18:36,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 14:18:36,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 14:18:36,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 14:18:36,498 INFO L87 Difference]: Start difference. First operand has 140 states, 133 states have (on average 1.6390977443609023) internal successors, (218), 135 states have internal predecessors, (218), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:18:36,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:18:36,529 INFO L93 Difference]: Finished difference Result 139 states and 177 transitions. [2024-11-20 14:18:36,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 14:18:36,531 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-20 14:18:36,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:18:36,540 INFO L225 Difference]: With dead ends: 139 [2024-11-20 14:18:36,540 INFO L226 Difference]: Without dead ends: 137 [2024-11-20 14:18:36,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 14:18:36,546 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 14:18:36,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 14:18:36,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-20 14:18:36,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2024-11-20 14:18:36,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 131 states have (on average 1.2900763358778626) internal successors, (169), 132 states have internal predecessors, (169), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 14:18:36,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 175 transitions. [2024-11-20 14:18:36,615 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 175 transitions. Word has length 9 [2024-11-20 14:18:36,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:18:36,616 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 175 transitions. [2024-11-20 14:18:36,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:18:36,616 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 175 transitions. [2024-11-20 14:18:36,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-20 14:18:36,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:18:36,617 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:18:36,625 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-20 14:18:36,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/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 [2024-11-20 14:18:36,818 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:18:36,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:18:36,819 INFO L85 PathProgramCache]: Analyzing trace with hash 738674175, now seen corresponding path program 1 times [2024-11-20 14:18:36,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 14:18:36,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1069466310] [2024-11-20 14:18:36,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:18:36,819 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 [2024-11-20 14:18:36,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 14:18:36,823 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/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) [2024-11-20 14:18:36,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-20 14:18:36,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:18:36,941 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 14:18:36,943 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 14:18:36,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:18:36,971 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 14:18:36,971 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 14:18:36,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1069466310] [2024-11-20 14:18:36,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1069466310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:18:36,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:18:36,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 14:18:36,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621645302] [2024-11-20 14:18:36,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:18:36,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:18:36,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 14:18:36,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:18:36,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:18:36,975 INFO L87 Difference]: Start difference. First operand 137 states and 175 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:18:37,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:18:37,096 INFO L93 Difference]: Finished difference Result 226 states and 290 transitions. [2024-11-20 14:18:37,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:18:37,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-20 14:18:37,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:18:37,103 INFO L225 Difference]: With dead ends: 226 [2024-11-20 14:18:37,103 INFO L226 Difference]: Without dead ends: 226 [2024-11-20 14:18:37,103 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:18:37,104 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 108 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 14:18:37,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 369 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 14:18:37,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-11-20 14:18:37,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 138. [2024-11-20 14:18:37,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 132 states have (on average 1.2878787878787878) internal successors, (170), 133 states have internal predecessors, (170), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 14:18:37,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 176 transitions. [2024-11-20 14:18:37,118 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 176 transitions. Word has length 9 [2024-11-20 14:18:37,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:18:37,118 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 176 transitions. [2024-11-20 14:18:37,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:18:37,119 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 176 transitions. [2024-11-20 14:18:37,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-20 14:18:37,120 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:18:37,121 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:18:37,123 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-20 14:18:37,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/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 [2024-11-20 14:18:37,323 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:18:37,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:18:37,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1816778816, now seen corresponding path program 1 times [2024-11-20 14:18:37,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 14:18:37,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [768979353] [2024-11-20 14:18:37,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:18:37,326 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 [2024-11-20 14:18:37,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 14:18:37,332 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/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) [2024-11-20 14:18:37,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-20 14:18:37,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:18:37,676 INFO L255 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 14:18:37,681 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 14:18:37,718 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:18:37,718 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 14:18:37,718 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 14:18:37,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [768979353] [2024-11-20 14:18:37,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [768979353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:18:37,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:18:37,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 14:18:37,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332264221] [2024-11-20 14:18:37,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:18:37,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 14:18:37,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 14:18:37,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 14:18:37,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 14:18:37,721 INFO L87 Difference]: Start difference. First operand 138 states and 176 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:18:37,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:18:37,917 INFO L93 Difference]: Finished difference Result 141 states and 171 transitions. [2024-11-20 14:18:37,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:18:37,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-20 14:18:37,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:18:37,918 INFO L225 Difference]: With dead ends: 141 [2024-11-20 14:18:37,918 INFO L226 Difference]: Without dead ends: 141 [2024-11-20 14:18:37,919 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:18:37,920 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 30 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 14:18:37,921 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 416 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 14:18:37,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-20 14:18:37,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2024-11-20 14:18:37,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 135 states have (on average 1.2222222222222223) internal successors, (165), 136 states have internal predecessors, (165), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 14:18:37,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 171 transitions. [2024-11-20 14:18:37,931 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 171 transitions. Word has length 64 [2024-11-20 14:18:37,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:18:37,931 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 171 transitions. [2024-11-20 14:18:37,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:18:37,931 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 171 transitions. [2024-11-20 14:18:37,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-20 14:18:37,933 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:18:37,933 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:18:37,944 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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)] Ended with exit code 0 [2024-11-20 14:18:38,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/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 [2024-11-20 14:18:38,138 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:18:38,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:18:38,139 INFO L85 PathProgramCache]: Analyzing trace with hash 243531316, now seen corresponding path program 1 times [2024-11-20 14:18:38,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 14:18:38,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1710338136] [2024-11-20 14:18:38,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:18:38,140 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 [2024-11-20 14:18:38,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 14:18:38,141 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/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) [2024-11-20 14:18:38,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-20 14:18:38,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:18:38,441 INFO L255 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 14:18:38,444 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 14:18:38,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:18:38,560 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 14:18:38,560 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 14:18:38,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1710338136] [2024-11-20 14:18:38,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1710338136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:18:38,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:18:38,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:18:38,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681871210] [2024-11-20 14:18:38,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:18:38,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:18:38,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 14:18:38,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:18:38,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:18:38,563 INFO L87 Difference]: Start difference. First operand 141 states and 171 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:18:38,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:18:38,647 INFO L93 Difference]: Finished difference Result 135 states and 161 transitions. [2024-11-20 14:18:38,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:18:38,648 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-20 14:18:38,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:18:38,649 INFO L225 Difference]: With dead ends: 135 [2024-11-20 14:18:38,649 INFO L226 Difference]: Without dead ends: 135 [2024-11-20 14:18:38,650 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:18:38,651 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 0 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 14:18:38,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 413 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 14:18:38,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-20 14:18:38,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2024-11-20 14:18:38,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 129 states have (on average 1.2015503875968991) internal successors, (155), 130 states have internal predecessors, (155), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 14:18:38,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 161 transitions. [2024-11-20 14:18:38,665 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 161 transitions. Word has length 64 [2024-11-20 14:18:38,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:18:38,665 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 161 transitions. [2024-11-20 14:18:38,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:18:38,665 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 161 transitions. [2024-11-20 14:18:38,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-20 14:18:38,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:18:38,667 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:18:38,676 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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)] Forceful destruction successful, exit code 0 [2024-11-20 14:18:38,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/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 [2024-11-20 14:18:38,869 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:18:38,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:18:38,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1807452682, now seen corresponding path program 1 times [2024-11-20 14:18:38,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 14:18:38,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1088533532] [2024-11-20 14:18:38,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:18:38,871 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 [2024-11-20 14:18:38,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 14:18:38,874 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/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) [2024-11-20 14:18:38,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-20 14:18:39,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:18:39,189 INFO L255 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 14:18:39,194 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 14:18:39,478 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:18:39,478 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 14:18:39,478 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 14:18:39,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1088533532] [2024-11-20 14:18:39,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1088533532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:18:39,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:18:39,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 14:18:39,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316484396] [2024-11-20 14:18:39,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:18:39,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:18:39,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 14:18:39,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:18:39,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:18:39,485 INFO L87 Difference]: Start difference. First operand 135 states and 161 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:18:39,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:18:39,992 INFO L93 Difference]: Finished difference Result 202 states and 237 transitions. [2024-11-20 14:18:39,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:18:39,998 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-20 14:18:39,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:18:39,999 INFO L225 Difference]: With dead ends: 202 [2024-11-20 14:18:39,999 INFO L226 Difference]: Without dead ends: 202 [2024-11-20 14:18:39,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:18:40,000 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 38 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 14:18:40,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 323 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 14:18:40,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2024-11-20 14:18:40,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 171. [2024-11-20 14:18:40,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 165 states have (on average 1.1575757575757575) internal successors, (191), 166 states have internal predecessors, (191), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 14:18:40,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 197 transitions. [2024-11-20 14:18:40,009 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 197 transitions. Word has length 64 [2024-11-20 14:18:40,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:18:40,010 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 197 transitions. [2024-11-20 14:18:40,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:18:40,010 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 197 transitions. [2024-11-20 14:18:40,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-20 14:18:40,012 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:18:40,012 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:18:40,021 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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)] Ended with exit code 0 [2024-11-20 14:18:40,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/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 [2024-11-20 14:18:40,217 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:18:40,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:18:40,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1321036443, now seen corresponding path program 1 times [2024-11-20 14:18:40,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 14:18:40,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1954499633] [2024-11-20 14:18:40,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:18:40,219 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 [2024-11-20 14:18:40,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 14:18:40,222 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/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) [2024-11-20 14:18:40,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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)] Waiting until timeout for monitored process [2024-11-20 14:18:40,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:18:40,643 INFO L255 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 14:18:40,646 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 14:18:40,689 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:18:40,691 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 14:18:40,691 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 14:18:40,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1954499633] [2024-11-20 14:18:40,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1954499633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:18:40,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:18:40,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 14:18:40,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117400403] [2024-11-20 14:18:40,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:18:40,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 14:18:40,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 14:18:40,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 14:18:40,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 14:18:40,697 INFO L87 Difference]: Start difference. First operand 171 states and 197 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 14:18:40,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:18:40,752 INFO L93 Difference]: Finished difference Result 174 states and 201 transitions. [2024-11-20 14:18:40,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 14:18:40,753 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 79 [2024-11-20 14:18:40,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:18:40,755 INFO L225 Difference]: With dead ends: 174 [2024-11-20 14:18:40,756 INFO L226 Difference]: Without dead ends: 174 [2024-11-20 14:18:40,756 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 14:18:40,758 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 0 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 14:18:40,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 467 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 14:18:40,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-20 14:18:40,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2024-11-20 14:18:40,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 167 states have (on average 1.1616766467065869) internal successors, (194), 169 states have internal predecessors, (194), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-20 14:18:40,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 201 transitions. [2024-11-20 14:18:40,775 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 201 transitions. Word has length 79 [2024-11-20 14:18:40,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:18:40,775 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 201 transitions. [2024-11-20 14:18:40,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 14:18:40,776 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 201 transitions. [2024-11-20 14:18:40,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-20 14:18:40,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:18:40,780 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:18:40,791 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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)] Ended with exit code 0 [2024-11-20 14:18:40,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/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 [2024-11-20 14:18:40,981 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:18:40,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:18:40,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1032156807, now seen corresponding path program 1 times [2024-11-20 14:18:40,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 14:18:40,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [344317701] [2024-11-20 14:18:40,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:18:40,982 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 [2024-11-20 14:18:40,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 14:18:40,984 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/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) [2024-11-20 14:18:40,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-20 14:18:41,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:18:41,412 INFO L255 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 14:18:41,416 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 14:18:41,487 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 14:18:41,488 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 14:18:41,639 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 14:18:41,639 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 14:18:41,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [344317701] [2024-11-20 14:18:41,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [344317701] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 14:18:41,640 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 14:18:41,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-20 14:18:41,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516508362] [2024-11-20 14:18:41,641 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 14:18:41,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 14:18:41,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 14:18:41,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 14:18:41,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-20 14:18:41,643 INFO L87 Difference]: Start difference. First operand 174 states and 201 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 14:18:41,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:18:41,867 INFO L93 Difference]: Finished difference Result 185 states and 217 transitions. [2024-11-20 14:18:41,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 14:18:41,868 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 81 [2024-11-20 14:18:41,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:18:41,870 INFO L225 Difference]: With dead ends: 185 [2024-11-20 14:18:41,870 INFO L226 Difference]: Without dead ends: 185 [2024-11-20 14:18:41,870 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-20 14:18:41,871 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 5 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 14:18:41,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 623 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 14:18:41,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-11-20 14:18:41,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 183. [2024-11-20 14:18:41,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 175 states have (on average 1.1885714285714286) internal successors, (208), 177 states have internal predecessors, (208), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-20 14:18:41,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 215 transitions. [2024-11-20 14:18:41,888 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 215 transitions. Word has length 81 [2024-11-20 14:18:41,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:18:41,889 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 215 transitions. [2024-11-20 14:18:41,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 14:18:41,889 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 215 transitions. [2024-11-20 14:18:41,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-20 14:18:41,891 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:18:41,891 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:18:41,905 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-20 14:18:42,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/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 [2024-11-20 14:18:42,092 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:18:42,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:18:42,092 INFO L85 PathProgramCache]: Analyzing trace with hash 995115035, now seen corresponding path program 2 times [2024-11-20 14:18:42,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 14:18:42,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1908650236] [2024-11-20 14:18:42,093 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 14:18:42,093 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 [2024-11-20 14:18:42,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 14:18:42,097 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/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) [2024-11-20 14:18:42,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-20 14:18:42,503 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 14:18:42,503 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 14:18:42,515 INFO L255 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-20 14:18:42,517 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 14:18:42,604 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-20 14:18:42,604 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 14:18:42,872 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 14:18:42,873 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 14:18:42,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1908650236] [2024-11-20 14:18:42,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1908650236] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 14:18:42,874 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 14:18:42,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-20 14:18:42,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874055297] [2024-11-20 14:18:42,874 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 14:18:42,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 14:18:42,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 14:18:42,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 14:18:42,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-20 14:18:42,876 INFO L87 Difference]: Start difference. First operand 183 states and 215 transitions. Second operand has 14 states, 14 states have (on average 6.5) internal successors, (91), 14 states have internal predecessors, (91), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 14:18:43,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:18:43,570 INFO L93 Difference]: Finished difference Result 198 states and 237 transitions. [2024-11-20 14:18:43,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-20 14:18:43,572 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.5) internal successors, (91), 14 states have internal predecessors, (91), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 85 [2024-11-20 14:18:43,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:18:43,574 INFO L225 Difference]: With dead ends: 198 [2024-11-20 14:18:43,574 INFO L226 Difference]: Without dead ends: 194 [2024-11-20 14:18:43,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-11-20 14:18:43,575 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 8 mSDsluCounter, 930 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 14:18:43,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1087 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 14:18:43,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-11-20 14:18:43,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 192. [2024-11-20 14:18:43,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 184 states have (on average 1.1956521739130435) internal successors, (220), 186 states have internal predecessors, (220), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-20 14:18:43,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 227 transitions. [2024-11-20 14:18:43,583 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 227 transitions. Word has length 85 [2024-11-20 14:18:43,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:18:43,583 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 227 transitions. [2024-11-20 14:18:43,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.5) internal successors, (91), 14 states have internal predecessors, (91), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 14:18:43,584 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 227 transitions. [2024-11-20 14:18:43,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-20 14:18:43,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:18:43,585 INFO L215 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:18:43,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-20 14:18:43,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/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 [2024-11-20 14:18:43,786 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:18:43,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:18:43,787 INFO L85 PathProgramCache]: Analyzing trace with hash 197625043, now seen corresponding path program 3 times [2024-11-20 14:18:43,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 14:18:43,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1099539671] [2024-11-20 14:18:43,788 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-20 14:18:43,788 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 [2024-11-20 14:18:43,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 14:18:43,791 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/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) [2024-11-20 14:18:43,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 (10)] Waiting until timeout for monitored process [2024-11-20 14:18:44,099 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-20 14:18:44,100 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 14:18:44,107 INFO L255 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 14:18:44,110 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 14:18:44,338 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2024-11-20 14:18:44,338 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 14:18:44,338 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 14:18:44,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1099539671] [2024-11-20 14:18:44,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1099539671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:18:44,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:18:44,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 14:18:44,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201222087] [2024-11-20 14:18:44,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:18:44,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 14:18:44,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 14:18:44,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 14:18:44,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 14:18:44,340 INFO L87 Difference]: Start difference. First operand 192 states and 227 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 14:18:48,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 14:18:52,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 14:18:54,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:18:54,683 INFO L93 Difference]: Finished difference Result 265 states and 319 transitions. [2024-11-20 14:18:54,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:18:54,685 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 94 [2024-11-20 14:18:54,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:18:54,687 INFO L225 Difference]: With dead ends: 265 [2024-11-20 14:18:54,687 INFO L226 Difference]: Without dead ends: 265 [2024-11-20 14:18:54,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:18:54,688 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 255 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2024-11-20 14:18:54,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 302 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 91 Invalid, 2 Unknown, 0 Unchecked, 10.3s Time] [2024-11-20 14:18:54,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-20 14:18:54,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 194. [2024-11-20 14:18:54,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 186 states have (on average 1.1827956989247312) internal successors, (220), 188 states have internal predecessors, (220), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-20 14:18:54,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 227 transitions. [2024-11-20 14:18:54,696 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 227 transitions. Word has length 94 [2024-11-20 14:18:54,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:18:54,696 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 227 transitions. [2024-11-20 14:18:54,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 14:18:54,697 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 227 transitions. [2024-11-20 14:18:54,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-20 14:18:54,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:18:54,698 INFO L215 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:18:54,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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 (10)] Forceful destruction successful, exit code 0 [2024-11-20 14:18:54,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/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 [2024-11-20 14:18:54,898 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:18:54,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:18:54,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1705760879, now seen corresponding path program 1 times [2024-11-20 14:18:54,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 14:18:54,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [49601534] [2024-11-20 14:18:54,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:18:54,900 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 [2024-11-20 14:18:54,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 14:18:54,901 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/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) [2024-11-20 14:18:54,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-20 14:18:55,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:18:55,348 INFO L255 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-20 14:18:55,350 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 14:18:55,584 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 70 proven. 55 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-20 14:18:55,584 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 14:18:56,580 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 1 proven. 123 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-20 14:18:56,580 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 14:18:56,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [49601534] [2024-11-20 14:18:56,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [49601534] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 14:18:56,581 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 14:18:56,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-11-20 14:18:56,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889639148] [2024-11-20 14:18:56,581 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 14:18:56,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-20 14:18:56,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 14:18:56,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-20 14:18:56,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-11-20 14:18:56,583 INFO L87 Difference]: Start difference. First operand 194 states and 227 transitions. Second operand has 26 states, 26 states have (on average 4.038461538461538) internal successors, (105), 26 states have internal predecessors, (105), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 14:18:59,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:18:59,207 INFO L93 Difference]: Finished difference Result 218 states and 267 transitions. [2024-11-20 14:18:59,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-20 14:18:59,208 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.038461538461538) internal successors, (105), 26 states have internal predecessors, (105), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 96 [2024-11-20 14:18:59,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:18:59,209 INFO L225 Difference]: With dead ends: 218 [2024-11-20 14:18:59,209 INFO L226 Difference]: Without dead ends: 214 [2024-11-20 14:18:59,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-11-20 14:18:59,211 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 14 mSDsluCounter, 1848 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2004 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-20 14:18:59,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2004 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-20 14:18:59,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-11-20 14:18:59,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 212. [2024-11-20 14:18:59,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 204 states have (on average 1.196078431372549) internal successors, (244), 206 states have internal predecessors, (244), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-20 14:18:59,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 251 transitions. [2024-11-20 14:18:59,218 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 251 transitions. Word has length 96 [2024-11-20 14:18:59,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:18:59,218 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 251 transitions. [2024-11-20 14:18:59,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.038461538461538) internal successors, (105), 26 states have internal predecessors, (105), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 14:18:59,219 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 251 transitions. [2024-11-20 14:18:59,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-20 14:18:59,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:18:59,220 INFO L215 NwaCegarLoop]: trace histogram [33, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:18:59,233 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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)] Ended with exit code 0 [2024-11-20 14:18:59,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/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 [2024-11-20 14:18:59,425 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:18:59,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:18:59,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1983932177, now seen corresponding path program 2 times [2024-11-20 14:18:59,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 14:18:59,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1197628559] [2024-11-20 14:18:59,426 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 14:18:59,426 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 [2024-11-20 14:18:59,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 14:18:59,427 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/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) [2024-11-20 14:18:59,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 (12)] Waiting until timeout for monitored process [2024-11-20 14:18:59,949 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 14:18:59,949 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 14:18:59,966 INFO L255 TraceCheckSpWp]: Trace formula consists of 786 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-20 14:18:59,969 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 14:19:00,703 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 280 proven. 253 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-20 14:19:00,703 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 14:19:02,715 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 1 proven. 531 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-20 14:19:02,715 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 14:19:02,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1197628559] [2024-11-20 14:19:02,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1197628559] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 14:19:02,715 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 14:19:02,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2024-11-20 14:19:02,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076306275] [2024-11-20 14:19:02,715 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 14:19:02,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-11-20 14:19:02,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 14:19:02,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-11-20 14:19:02,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2024-11-20 14:19:02,718 INFO L87 Difference]: Start difference. First operand 212 states and 251 transitions. Second operand has 50 states, 50 states have (on average 2.58) internal successors, (129), 50 states have internal predecessors, (129), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 14:19:11,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:19:11,385 INFO L93 Difference]: Finished difference Result 252 states and 323 transitions. [2024-11-20 14:19:11,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-11-20 14:19:11,387 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 2.58) internal successors, (129), 50 states have internal predecessors, (129), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 114 [2024-11-20 14:19:11,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:19:11,388 INFO L225 Difference]: With dead ends: 252 [2024-11-20 14:19:11,388 INFO L226 Difference]: Without dead ends: 248 [2024-11-20 14:19:11,390 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=2713, Invalid=5843, Unknown=0, NotChecked=0, Total=8556 [2024-11-20 14:19:11,390 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 25 mSDsluCounter, 3545 mSDsCounter, 0 mSdLazyCounter, 1919 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 3701 SdHoareTripleChecker+Invalid, 1960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-20 14:19:11,391 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 3701 Invalid, 1960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1919 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-20 14:19:11,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-11-20 14:19:11,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 246. [2024-11-20 14:19:11,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 238 states have (on average 1.218487394957983) internal successors, (290), 240 states have internal predecessors, (290), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-20 14:19:11,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 297 transitions. [2024-11-20 14:19:11,398 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 297 transitions. Word has length 114 [2024-11-20 14:19:11,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:19:11,399 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 297 transitions. [2024-11-20 14:19:11,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.58) internal successors, (129), 50 states have internal predecessors, (129), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 14:19:11,399 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 297 transitions. [2024-11-20 14:19:11,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-20 14:19:11,401 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:19:11,401 INFO L215 NwaCegarLoop]: trace histogram [67, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:19:11,414 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 (12)] Ended with exit code 0 [2024-11-20 14:19:11,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/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 [2024-11-20 14:19:11,601 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:19:11,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:19:11,602 INFO L85 PathProgramCache]: Analyzing trace with hash 154351953, now seen corresponding path program 3 times [2024-11-20 14:19:11,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 14:19:11,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [255110481] [2024-11-20 14:19:11,603 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-20 14:19:11,603 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 [2024-11-20 14:19:11,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 14:19:11,604 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/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) [2024-11-20 14:19:11,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-20 14:19:12,038 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-20 14:19:12,038 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 14:19:12,047 INFO L255 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 14:19:12,051 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 14:19:12,235 INFO L134 CoverageAnalysis]: Checked inductivity of 2351 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2350 trivial. 0 not checked. [2024-11-20 14:19:12,235 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 14:19:12,431 INFO L134 CoverageAnalysis]: Checked inductivity of 2351 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2350 trivial. 0 not checked. [2024-11-20 14:19:12,431 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 14:19:12,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [255110481] [2024-11-20 14:19:12,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [255110481] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 14:19:12,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 14:19:12,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2024-11-20 14:19:12,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772864839] [2024-11-20 14:19:12,432 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 14:19:12,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 14:19:12,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 14:19:12,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 14:19:12,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 14:19:12,434 INFO L87 Difference]: Start difference. First operand 246 states and 297 transitions. Second operand has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 14:19:12,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:19:12,694 INFO L93 Difference]: Finished difference Result 439 states and 526 transitions. [2024-11-20 14:19:12,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 14:19:12,695 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 148 [2024-11-20 14:19:12,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:19:12,697 INFO L225 Difference]: With dead ends: 439 [2024-11-20 14:19:12,697 INFO L226 Difference]: Without dead ends: 439 [2024-11-20 14:19:12,697 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-20 14:19:12,697 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 294 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 14:19:12,698 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 791 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 14:19:12,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-20 14:19:12,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 439. [2024-11-20 14:19:12,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 428 states have (on average 1.191588785046729) internal successors, (510), 430 states have internal predecessors, (510), 6 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-11-20 14:19:12,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 526 transitions. [2024-11-20 14:19:12,707 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 526 transitions. Word has length 148 [2024-11-20 14:19:12,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:19:12,708 INFO L471 AbstractCegarLoop]: Abstraction has 439 states and 526 transitions. [2024-11-20 14:19:12,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 14:19:12,708 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 526 transitions. [2024-11-20 14:19:12,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2024-11-20 14:19:12,713 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:19:12,713 INFO L215 NwaCegarLoop]: trace histogram [67, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:19:12,722 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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)] Ended with exit code 0 [2024-11-20 14:19:12,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/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 [2024-11-20 14:19:12,914 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:19:12,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:19:12,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1134843200, now seen corresponding path program 1 times [2024-11-20 14:19:12,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 14:19:12,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [564401028] [2024-11-20 14:19:12,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:19:12,915 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 [2024-11-20 14:19:12,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 14:19:12,917 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/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) [2024-11-20 14:19:12,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 (14)] Waiting until timeout for monitored process [2024-11-20 14:19:14,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:19:14,468 INFO L255 TraceCheckSpWp]: Trace formula consists of 1952 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-20 14:19:14,474 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 14:19:15,168 INFO L134 CoverageAnalysis]: Checked inductivity of 2678 backedges. 1194 proven. 276 refuted. 0 times theorem prover too weak. 1208 trivial. 0 not checked. [2024-11-20 14:19:15,168 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 14:19:17,070 INFO L134 CoverageAnalysis]: Checked inductivity of 2678 backedges. 1194 proven. 276 refuted. 0 times theorem prover too weak. 1208 trivial. 0 not checked. [2024-11-20 14:19:17,071 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 14:19:17,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [564401028] [2024-11-20 14:19:17,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [564401028] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 14:19:17,071 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 14:19:17,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 52 [2024-11-20 14:19:17,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292561409] [2024-11-20 14:19:17,072 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 14:19:17,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-11-20 14:19:17,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 14:19:17,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-11-20 14:19:17,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=726, Invalid=1926, Unknown=0, NotChecked=0, Total=2652 [2024-11-20 14:19:17,074 INFO L87 Difference]: Start difference. First operand 439 states and 526 transitions. Second operand has 52 states, 52 states have (on average 3.1923076923076925) internal successors, (166), 52 states have internal predecessors, (166), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 14:19:24,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 14:19:24,814 INFO L93 Difference]: Finished difference Result 468 states and 586 transitions. [2024-11-20 14:19:24,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2024-11-20 14:19:24,816 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 3.1923076923076925) internal successors, (166), 52 states have internal predecessors, (166), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 313 [2024-11-20 14:19:24,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 14:19:24,820 INFO L225 Difference]: With dead ends: 468 [2024-11-20 14:19:24,821 INFO L226 Difference]: Without dead ends: 468 [2024-11-20 14:19:24,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 671 GetRequests, 574 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1633 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=3146, Invalid=6556, Unknown=0, NotChecked=0, Total=9702 [2024-11-20 14:19:24,824 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 26 mSDsluCounter, 3675 mSDsCounter, 0 mSdLazyCounter, 1396 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 3830 SdHoareTripleChecker+Invalid, 1428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-20 14:19:24,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 3830 Invalid, 1428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1396 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-20 14:19:24,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2024-11-20 14:19:24,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 464. [2024-11-20 14:19:24,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 453 states have (on average 1.2362030905077264) internal successors, (560), 455 states have internal predecessors, (560), 6 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-11-20 14:19:24,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 576 transitions. [2024-11-20 14:19:24,837 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 576 transitions. Word has length 313 [2024-11-20 14:19:24,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 14:19:24,838 INFO L471 AbstractCegarLoop]: Abstraction has 464 states and 576 transitions. [2024-11-20 14:19:24,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 3.1923076923076925) internal successors, (166), 52 states have internal predecessors, (166), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 14:19:24,838 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 576 transitions. [2024-11-20 14:19:24,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2024-11-20 14:19:24,841 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:19:24,841 INFO L215 NwaCegarLoop]: trace histogram [92, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:19:24,882 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 (14)] Ended with exit code 0 [2024-11-20 14:19:25,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/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 [2024-11-20 14:19:25,042 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-20 14:19:25,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:19:25,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1672262088, now seen corresponding path program 2 times [2024-11-20 14:19:25,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 14:19:25,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1760958706] [2024-11-20 14:19:25,044 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 14:19:25,044 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 [2024-11-20 14:19:25,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 14:19:25,049 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/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) [2024-11-20 14:19:25,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 (15)] Waiting until timeout for monitored process [2024-11-20 14:19:27,068 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 14:19:27,068 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 14:19:27,126 INFO L255 TraceCheckSpWp]: Trace formula consists of 2227 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-11-20 14:19:27,131 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 14:19:28,923 INFO L134 CoverageAnalysis]: Checked inductivity of 4703 backedges. 2319 proven. 1176 refuted. 0 times theorem prover too weak. 1208 trivial. 0 not checked. [2024-11-20 14:19:28,923 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 14:19:35,258 INFO L134 CoverageAnalysis]: Checked inductivity of 4703 backedges. 2319 proven. 1176 refuted. 0 times theorem prover too weak. 1208 trivial. 0 not checked. [2024-11-20 14:19:35,258 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 14:19:35,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1760958706] [2024-11-20 14:19:35,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1760958706] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 14:19:35,259 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 14:19:35,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 102 [2024-11-20 14:19:35,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371368634] [2024-11-20 14:19:35,259 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 14:19:35,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2024-11-20 14:19:35,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 14:19:35,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2024-11-20 14:19:35,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2701, Invalid=7601, Unknown=0, NotChecked=0, Total=10302 [2024-11-20 14:19:35,264 INFO L87 Difference]: Start difference. First operand 464 states and 576 transitions. Second operand has 102 states, 102 states have (on average 2.1176470588235294) internal successors, (216), 102 states have internal predecessors, (216), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)