./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0672e9446c2cfbd152a4f960adca314d72e71aa68b29fd9a83ebc5c34f7546dd --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 02:56:02,431 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 02:56:02,487 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 02:56:02,492 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 02:56:02,493 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 02:56:02,517 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 02:56:02,517 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 02:56:02,518 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 02:56:02,518 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 02:56:02,519 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 02:56:02,520 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 02:56:02,520 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 02:56:02,520 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 02:56:02,520 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 02:56:02,521 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 02:56:02,521 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 02:56:02,521 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 02:56:02,521 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 02:56:02,521 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 02:56:02,522 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 02:56:02,522 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 02:56:02,522 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 02:56:02,523 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 02:56:02,523 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 02:56:02,523 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 02:56:02,523 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 02:56:02,523 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 02:56:02,523 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 02:56:02,524 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 02:56:02,524 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 02:56:02,524 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 02:56:02,524 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 02:56:02,524 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 02:56:02,524 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 02:56:02,524 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 02:56:02,525 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 02:56:02,525 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 02:56:02,525 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 02:56:02,525 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 02:56:02,525 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 02:56:02,525 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 02:56:02,526 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 02:56:02,526 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0672e9446c2cfbd152a4f960adca314d72e71aa68b29fd9a83ebc5c34f7546dd [2024-11-17 02:56:02,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 02:56:02,728 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 02:56:02,731 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 02:56:02,731 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 02:56:02,732 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 02:56:02,732 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-2.i [2024-11-17 02:56:03,922 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 02:56:04,182 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 02:56:04,183 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-2.i [2024-11-17 02:56:04,204 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2b6cbc21/4ab2ecd975d041adaeed894f116bd430/FLAG341493d08 [2024-11-17 02:56:04,217 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2b6cbc21/4ab2ecd975d041adaeed894f116bd430 [2024-11-17 02:56:04,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 02:56:04,221 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 02:56:04,223 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 02:56:04,223 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 02:56:04,227 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 02:56:04,227 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 02:56:04" (1/1) ... [2024-11-17 02:56:04,228 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c35986c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:56:04, skipping insertion in model container [2024-11-17 02:56:04,228 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 02:56:04" (1/1) ... [2024-11-17 02:56:04,275 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 02:56:04,736 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:04,751 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:04,754 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:04,756 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:04,759 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:04,810 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:04,813 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:04,814 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:04,815 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:04,816 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:04,817 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:04,818 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:04,819 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:04,819 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:04,826 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:04,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 02:56:04,858 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) [2024-11-17 02:56:04,859 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@295375eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:56:04, skipping insertion in model container [2024-11-17 02:56:04,859 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 02:56:04,860 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-17 02:56:04,861 INFO L158 Benchmark]: Toolchain (without parser) took 639.49ms. Allocated memory is still 188.7MB. Free memory was 114.0MB in the beginning and 152.4MB in the end (delta: -38.3MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-17 02:56:04,861 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 121.6MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 02:56:04,862 INFO L158 Benchmark]: CACSL2BoogieTranslator took 636.81ms. Allocated memory is still 188.7MB. Free memory was 113.8MB in the beginning and 152.4MB in the end (delta: -38.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-17 02:56:04,863 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 121.6MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 636.81ms. Allocated memory is still 188.7MB. Free memory was 113.8MB in the beginning and 152.4MB in the end (delta: -38.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2239]: 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/11.0.12-open/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 ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0672e9446c2cfbd152a4f960adca314d72e71aa68b29fd9a83ebc5c34f7546dd --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 02:56:06,443 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 02:56:06,506 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-17 02:56:06,511 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 02:56:06,511 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 02:56:06,545 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 02:56:06,545 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 02:56:06,546 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 02:56:06,546 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 02:56:06,546 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 02:56:06,547 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 02:56:06,547 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 02:56:06,547 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 02:56:06,548 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 02:56:06,548 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 02:56:06,548 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 02:56:06,551 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 02:56:06,551 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 02:56:06,551 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 02:56:06,551 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 02:56:06,551 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 02:56:06,554 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 02:56:06,554 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 02:56:06,554 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 02:56:06,554 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 02:56:06,555 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-17 02:56:06,555 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 02:56:06,555 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-17 02:56:06,555 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 02:56:06,555 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 02:56:06,555 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 02:56:06,555 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 02:56:06,556 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 02:56:06,556 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 02:56:06,556 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 02:56:06,556 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 02:56:06,556 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 02:56:06,556 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 02:56:06,556 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-17 02:56:06,556 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-17 02:56:06,557 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 02:56:06,558 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 02:56:06,559 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 02:56:06,559 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 02:56:06,559 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0672e9446c2cfbd152a4f960adca314d72e71aa68b29fd9a83ebc5c34f7546dd [2024-11-17 02:56:06,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 02:56:06,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 02:56:06,817 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 02:56:06,818 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 02:56:06,818 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 02:56:06,819 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-2.i [2024-11-17 02:56:08,117 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 02:56:08,399 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 02:56:08,400 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-2.i [2024-11-17 02:56:08,419 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70808dc49/0d9dea81fd474a17ad627f1e3c06b922/FLAG81aac50c5 [2024-11-17 02:56:08,681 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70808dc49/0d9dea81fd474a17ad627f1e3c06b922 [2024-11-17 02:56:08,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 02:56:08,684 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 02:56:08,685 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 02:56:08,685 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 02:56:08,688 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 02:56:08,689 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 02:56:08" (1/1) ... [2024-11-17 02:56:08,689 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a137658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:56:08, skipping insertion in model container [2024-11-17 02:56:08,689 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 02:56:08" (1/1) ... [2024-11-17 02:56:08,741 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 02:56:09,239 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:09,255 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:09,259 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:09,262 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:09,268 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:09,290 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:09,292 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:09,295 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:09,295 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:09,297 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:09,299 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:09,301 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:09,302 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:09,302 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:09,305 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:09,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 02:56:09,320 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-17 02:56:09,333 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 02:56:09,390 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:09,399 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:09,401 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:09,403 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:09,406 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:09,418 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:09,418 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:09,420 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:09,423 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:09,424 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:09,425 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:09,425 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:09,426 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:09,428 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:09,430 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:56:09,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 02:56:09,437 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 02:56:09,517 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 02:56:09,547 INFO L204 MainTranslator]: Completed translation [2024-11-17 02:56:09,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:56:09 WrapperNode [2024-11-17 02:56:09,548 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 02:56:09,549 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 02:56:09,549 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 02:56:09,549 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 02:56:09,553 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:56:09" (1/1) ... [2024-11-17 02:56:09,594 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:56:09" (1/1) ... [2024-11-17 02:56:09,671 INFO L138 Inliner]: procedures = 180, calls = 775, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3027 [2024-11-17 02:56:09,672 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 02:56:09,672 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 02:56:09,673 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 02:56:09,673 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 02:56:09,680 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:56:09" (1/1) ... [2024-11-17 02:56:09,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:56:09" (1/1) ... [2024-11-17 02:56:09,695 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:56:09" (1/1) ... [2024-11-17 02:56:09,758 INFO L175 MemorySlicer]: Split 256 memory accesses to 3 slices as follows [2, 220, 34]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 54 writes are split as follows [0, 50, 4]. [2024-11-17 02:56:09,758 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:56:09" (1/1) ... [2024-11-17 02:56:09,758 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:56:09" (1/1) ... [2024-11-17 02:56:09,810 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:56:09" (1/1) ... [2024-11-17 02:56:09,815 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:56:09" (1/1) ... [2024-11-17 02:56:09,827 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:56:09" (1/1) ... [2024-11-17 02:56:09,835 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:56:09" (1/1) ... [2024-11-17 02:56:09,849 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 02:56:09,851 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 02:56:09,851 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 02:56:09,851 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 02:56:09,852 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:56:09" (1/1) ... [2024-11-17 02:56:09,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 02:56:09,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 02:56:09,882 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) [2024-11-17 02:56:09,884 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 [2024-11-17 02:56:09,920 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-17 02:56:09,920 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-17 02:56:09,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-17 02:56:09,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-17 02:56:09,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-17 02:56:09,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-17 02:56:09,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-17 02:56:09,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-17 02:56:09,921 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-17 02:56:09,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-17 02:56:09,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-17 02:56:09,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-17 02:56:09,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-17 02:56:09,921 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-17 02:56:09,922 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-17 02:56:09,922 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-17 02:56:09,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-17 02:56:09,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 02:56:09,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-17 02:56:09,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-17 02:56:09,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-17 02:56:09,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-17 02:56:09,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-17 02:56:09,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-17 02:56:09,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-17 02:56:09,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 02:56:09,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-17 02:56:09,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-17 02:56:09,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-17 02:56:09,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-17 02:56:09,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-17 02:56:09,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-17 02:56:09,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 02:56:09,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 02:56:10,108 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 02:56:10,109 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 02:56:13,584 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2218: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2024-11-17 02:56:13,802 INFO L? ?]: Removed 1595 outVars from TransFormulas that were not future-live. [2024-11-17 02:56:13,803 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 02:56:13,839 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 02:56:13,839 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 02:56:13,839 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 02:56:13 BoogieIcfgContainer [2024-11-17 02:56:13,839 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 02:56:13,841 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 02:56:13,841 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 02:56:13,844 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 02:56:13,845 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 02:56:08" (1/3) ... [2024-11-17 02:56:13,845 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb8afff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 02:56:13, skipping insertion in model container [2024-11-17 02:56:13,846 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:56:09" (2/3) ... [2024-11-17 02:56:13,847 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb8afff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 02:56:13, skipping insertion in model container [2024-11-17 02:56:13,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 02:56:13" (3/3) ... [2024-11-17 02:56:13,848 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test9-2.i [2024-11-17 02:56:13,861 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 02:56:13,862 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 529 error locations. [2024-11-17 02:56:13,928 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 02:56:13,934 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;@17bc7cb6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 02:56:13,934 INFO L334 AbstractCegarLoop]: Starting to check reachability of 529 error locations. [2024-11-17 02:56:13,943 INFO L276 IsEmpty]: Start isEmpty. Operand has 2099 states, 1064 states have (on average 2.082706766917293) internal successors, (2216), 2092 states have internal predecessors, (2216), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) [2024-11-17 02:56:13,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-17 02:56:13,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:56:13,947 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-17 02:56:13,948 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr527REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-17 02:56:13,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:56:13,952 INFO L85 PathProgramCache]: Analyzing trace with hash 4226176, now seen corresponding path program 1 times [2024-11-17 02:56:13,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:56:13,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1492672586] [2024-11-17 02:56:13,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:56:13,962 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 [2024-11-17 02:56:13,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:56:13,963 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) [2024-11-17 02:56:13,987 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 [2024-11-17 02:56:14,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:56:14,101 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 02:56:14,105 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:56:14,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-17 02:56:14,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:56:14,170 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:56:14,170 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:56:14,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1492672586] [2024-11-17 02:56:14,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1492672586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:56:14,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:56:14,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 02:56:14,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023371930] [2024-11-17 02:56:14,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:56:14,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 02:56:14,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:56:14,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 02:56:14,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:56:14,248 INFO L87 Difference]: Start difference. First operand has 2099 states, 1064 states have (on average 2.082706766917293) internal successors, (2216), 2092 states have internal predecessors, (2216), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-11-17 02:56:16,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:56:16,906 INFO L93 Difference]: Finished difference Result 3518 states and 5614 transitions. [2024-11-17 02:56:16,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 02:56:16,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-11-17 02:56:16,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:56:16,946 INFO L225 Difference]: With dead ends: 3518 [2024-11-17 02:56:16,947 INFO L226 Difference]: Without dead ends: 3515 [2024-11-17 02:56:16,948 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:56:16,952 INFO L432 NwaCegarLoop]: 3053 mSDtfsCounter, 1463 mSDsluCounter, 2113 mSDsCounter, 0 mSdLazyCounter, 1228 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1963 SdHoareTripleChecker+Valid, 5166 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-17 02:56:16,953 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1963 Valid, 5166 Invalid, 1234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1228 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-17 02:56:16,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3515 states. [2024-11-17 02:56:17,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3515 to 3220. [2024-11-17 02:56:17,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3220 states, 1693 states have (on average 1.9982279976373303) internal successors, (3383), 3213 states have internal predecessors, (3383), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-17 02:56:17,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3220 states to 3220 states and 5391 transitions. [2024-11-17 02:56:17,272 INFO L78 Accepts]: Start accepts. Automaton has 3220 states and 5391 transitions. Word has length 3 [2024-11-17 02:56:17,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:56:17,272 INFO L471 AbstractCegarLoop]: Abstraction has 3220 states and 5391 transitions. [2024-11-17 02:56:17,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-11-17 02:56:17,273 INFO L276 IsEmpty]: Start isEmpty. Operand 3220 states and 5391 transitions. [2024-11-17 02:56:17,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-17 02:56:17,273 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:56:17,273 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-17 02:56:17,276 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 [2024-11-17 02:56:17,474 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 [2024-11-17 02:56:17,474 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr526REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-17 02:56:17,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:56:17,475 INFO L85 PathProgramCache]: Analyzing trace with hash 4226175, now seen corresponding path program 1 times [2024-11-17 02:56:17,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:56:17,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [508365697] [2024-11-17 02:56:17,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:56:17,475 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 [2024-11-17 02:56:17,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:56:17,487 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) [2024-11-17 02:56:17,488 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 [2024-11-17 02:56:17,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:56:17,564 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 02:56:17,566 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:56:17,572 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-17 02:56:17,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:56:17,576 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:56:17,576 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:56:17,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [508365697] [2024-11-17 02:56:17,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [508365697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:56:17,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:56:17,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 02:56:17,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321942398] [2024-11-17 02:56:17,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:56:17,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 02:56:17,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:56:17,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 02:56:17,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:56:17,578 INFO L87 Difference]: Start difference. First operand 3220 states and 5391 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-11-17 02:56:19,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:56:19,098 INFO L93 Difference]: Finished difference Result 3402 states and 5577 transitions. [2024-11-17 02:56:19,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 02:56:19,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-11-17 02:56:19,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:56:19,110 INFO L225 Difference]: With dead ends: 3402 [2024-11-17 02:56:19,110 INFO L226 Difference]: Without dead ends: 3402 [2024-11-17 02:56:19,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:56:19,111 INFO L432 NwaCegarLoop]: 2660 mSDtfsCounter, 1996 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 1143 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2499 SdHoareTripleChecker+Valid, 2819 SdHoareTripleChecker+Invalid, 1159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-17 02:56:19,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2499 Valid, 2819 Invalid, 1159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1143 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-17 02:56:19,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3402 states. [2024-11-17 02:56:19,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3402 to 3217. [2024-11-17 02:56:19,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3217 states, 1701 states have (on average 1.9841269841269842) internal successors, (3375), 3210 states have internal predecessors, (3375), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-17 02:56:19,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3217 states to 3217 states and 5383 transitions. [2024-11-17 02:56:19,291 INFO L78 Accepts]: Start accepts. Automaton has 3217 states and 5383 transitions. Word has length 3 [2024-11-17 02:56:19,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:56:19,291 INFO L471 AbstractCegarLoop]: Abstraction has 3217 states and 5383 transitions. [2024-11-17 02:56:19,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-11-17 02:56:19,292 INFO L276 IsEmpty]: Start isEmpty. Operand 3217 states and 5383 transitions. [2024-11-17 02:56:19,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-17 02:56:19,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:56:19,292 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:56:19,295 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 [2024-11-17 02:56:19,494 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 [2024-11-17 02:56:19,494 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr523REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-17 02:56:19,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:56:19,498 INFO L85 PathProgramCache]: Analyzing trace with hash -2017991013, now seen corresponding path program 1 times [2024-11-17 02:56:19,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:56:19,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1966691350] [2024-11-17 02:56:19,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:56:19,499 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 [2024-11-17 02:56:19,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:56:19,505 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) [2024-11-17 02:56:19,506 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 [2024-11-17 02:56:19,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:56:19,599 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-17 02:56:19,601 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:56:19,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-17 02:56:19,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-17 02:56:19,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-17 02:56:19,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-17 02:56:19,682 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-17 02:56:19,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-17 02:56:19,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:56:19,698 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:56:19,698 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:56:19,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1966691350] [2024-11-17 02:56:19,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1966691350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:56:19,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:56:19,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:56:19,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377346336] [2024-11-17 02:56:19,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:56:19,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:56:19,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:56:19,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:56:19,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:56:19,700 INFO L87 Difference]: Start difference. First operand 3217 states and 5383 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2024-11-17 02:56:22,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:56:22,581 INFO L93 Difference]: Finished difference Result 3391 states and 5565 transitions. [2024-11-17 02:56:22,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 02:56:22,581 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2024-11-17 02:56:22,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:56:22,591 INFO L225 Difference]: With dead ends: 3391 [2024-11-17 02:56:22,591 INFO L226 Difference]: Without dead ends: 3391 [2024-11-17 02:56:22,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:56:22,592 INFO L432 NwaCegarLoop]: 2393 mSDtfsCounter, 4270 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 1454 mSolverCounterSat, 522 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4773 SdHoareTripleChecker+Valid, 2486 SdHoareTripleChecker+Invalid, 1976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 522 IncrementalHoareTripleChecker+Valid, 1454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-17 02:56:22,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4773 Valid, 2486 Invalid, 1976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [522 Valid, 1454 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-17 02:56:22,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3391 states. [2024-11-17 02:56:22,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3391 to 2069. [2024-11-17 02:56:22,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2069 states, 1064 states have (on average 1.9906015037593985) internal successors, (2118), 2062 states have internal predecessors, (2118), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-11-17 02:56:22,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2069 states to 2069 states and 3126 transitions. [2024-11-17 02:56:22,755 INFO L78 Accepts]: Start accepts. Automaton has 2069 states and 3126 transitions. Word has length 8 [2024-11-17 02:56:22,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:56:22,756 INFO L471 AbstractCegarLoop]: Abstraction has 2069 states and 3126 transitions. [2024-11-17 02:56:22,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2024-11-17 02:56:22,756 INFO L276 IsEmpty]: Start isEmpty. Operand 2069 states and 3126 transitions. [2024-11-17 02:56:22,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-17 02:56:22,757 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:56:22,757 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:56:22,760 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 [2024-11-17 02:56:22,957 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 [2024-11-17 02:56:22,958 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr520REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-17 02:56:22,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:56:22,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1866792181, now seen corresponding path program 1 times [2024-11-17 02:56:22,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:56:22,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [187865601] [2024-11-17 02:56:22,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:56:22,959 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 [2024-11-17 02:56:22,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:56:22,961 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) [2024-11-17 02:56:22,961 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 [2024-11-17 02:56:23,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:56:23,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 02:56:23,039 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:56:23,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-17 02:56:23,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:56:23,056 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:56:23,057 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:56:23,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [187865601] [2024-11-17 02:56:23,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [187865601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:56:23,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:56:23,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 02:56:23,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027534641] [2024-11-17 02:56:23,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:56:23,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 02:56:23,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:56:23,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 02:56:23,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:56:23,058 INFO L87 Difference]: Start difference. First operand 2069 states and 3126 transitions. Second operand has 3 states, 2 states have (on average 4.5) 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) [2024-11-17 02:56:24,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:56:24,529 INFO L93 Difference]: Finished difference Result 3247 states and 5326 transitions. [2024-11-17 02:56:24,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 02:56:24,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) 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 [2024-11-17 02:56:24,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:56:24,540 INFO L225 Difference]: With dead ends: 3247 [2024-11-17 02:56:24,540 INFO L226 Difference]: Without dead ends: 3247 [2024-11-17 02:56:24,540 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 [2024-11-17 02:56:24,541 INFO L432 NwaCegarLoop]: 4800 mSDtfsCounter, 1771 mSDsluCounter, 2272 mSDsCounter, 0 mSdLazyCounter, 1171 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2274 SdHoareTripleChecker+Valid, 7072 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-17 02:56:24,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2274 Valid, 7072 Invalid, 1221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1171 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-17 02:56:24,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3247 states. [2024-11-17 02:56:24,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3247 to 2022. [2024-11-17 02:56:24,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2022 states, 1064 states have (on average 1.9464285714285714) internal successors, (2071), 2015 states have internal predecessors, (2071), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-11-17 02:56:24,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2022 states to 2022 states and 3079 transitions. [2024-11-17 02:56:24,704 INFO L78 Accepts]: Start accepts. Automaton has 2022 states and 3079 transitions. Word has length 9 [2024-11-17 02:56:24,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:56:24,704 INFO L471 AbstractCegarLoop]: Abstraction has 2022 states and 3079 transitions. [2024-11-17 02:56:24,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) 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) [2024-11-17 02:56:24,704 INFO L276 IsEmpty]: Start isEmpty. Operand 2022 states and 3079 transitions. [2024-11-17 02:56:24,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-17 02:56:24,705 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:56:24,705 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:56:24,710 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 (5)] Ended with exit code 0 [2024-11-17 02:56:24,905 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 [2024-11-17 02:56:24,906 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr521REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-17 02:56:24,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:56:24,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1866792182, now seen corresponding path program 1 times [2024-11-17 02:56:24,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:56:24,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1301637092] [2024-11-17 02:56:24,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:56:24,907 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 [2024-11-17 02:56:24,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:56:24,909 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) [2024-11-17 02:56:24,910 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 [2024-11-17 02:56:24,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:56:24,996 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 02:56:24,998 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:56:25,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-17 02:56:25,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:56:25,023 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:56:25,023 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:56:25,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1301637092] [2024-11-17 02:56:25,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1301637092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:56:25,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:56:25,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 02:56:25,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080712465] [2024-11-17 02:56:25,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:56:25,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 02:56:25,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:56:25,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 02:56:25,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:56:25,024 INFO L87 Difference]: Start difference. First operand 2022 states and 3079 transitions. Second operand has 3 states, 2 states have (on average 4.5) 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) [2024-11-17 02:56:26,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:56:26,814 INFO L93 Difference]: Finished difference Result 3325 states and 5407 transitions. [2024-11-17 02:56:26,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 02:56:26,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) 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 [2024-11-17 02:56:26,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:56:26,825 INFO L225 Difference]: With dead ends: 3325 [2024-11-17 02:56:26,825 INFO L226 Difference]: Without dead ends: 3325 [2024-11-17 02:56:26,825 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 [2024-11-17 02:56:26,826 INFO L432 NwaCegarLoop]: 4980 mSDtfsCounter, 1518 mSDsluCounter, 2449 mSDsCounter, 0 mSdLazyCounter, 1145 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2018 SdHoareTripleChecker+Valid, 7429 SdHoareTripleChecker+Invalid, 1158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-17 02:56:26,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2018 Valid, 7429 Invalid, 1158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1145 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-17 02:56:26,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3325 states. [2024-11-17 02:56:26,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3325 to 2051. [2024-11-17 02:56:26,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2051 states, 1103 states have (on average 1.9374433363553945) internal successors, (2137), 2044 states have internal predecessors, (2137), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-11-17 02:56:26,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2051 states to 2051 states and 3145 transitions. [2024-11-17 02:56:26,982 INFO L78 Accepts]: Start accepts. Automaton has 2051 states and 3145 transitions. Word has length 9 [2024-11-17 02:56:26,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:56:26,983 INFO L471 AbstractCegarLoop]: Abstraction has 2051 states and 3145 transitions. [2024-11-17 02:56:26,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) 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) [2024-11-17 02:56:26,983 INFO L276 IsEmpty]: Start isEmpty. Operand 2051 states and 3145 transitions. [2024-11-17 02:56:26,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-17 02:56:26,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:56:26,983 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:56:26,986 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 [2024-11-17 02:56:27,186 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 [2024-11-17 02:56:27,186 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr104REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-17 02:56:27,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:56:27,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1545566493, now seen corresponding path program 1 times [2024-11-17 02:56:27,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:56:27,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1282430155] [2024-11-17 02:56:27,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:56:27,188 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 [2024-11-17 02:56:27,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:56:27,189 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) [2024-11-17 02:56:27,189 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 [2024-11-17 02:56:27,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:56:27,279 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 02:56:27,280 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:56:27,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:56:27,322 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:56:27,322 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:56:27,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1282430155] [2024-11-17 02:56:27,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1282430155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:56:27,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:56:27,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:56:27,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039137308] [2024-11-17 02:56:27,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:56:27,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 02:56:27,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:56:27,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 02:56:27,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:56:27,323 INFO L87 Difference]: Start difference. First operand 2051 states and 3145 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2024-11-17 02:56:27,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:56:27,518 INFO L93 Difference]: Finished difference Result 3507 states and 5657 transitions. [2024-11-17 02:56:27,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 02:56:27,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2024-11-17 02:56:27,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:56:27,533 INFO L225 Difference]: With dead ends: 3507 [2024-11-17 02:56:27,533 INFO L226 Difference]: Without dead ends: 3507 [2024-11-17 02:56:27,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:56:27,535 INFO L432 NwaCegarLoop]: 3131 mSDtfsCounter, 1480 mSDsluCounter, 2977 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1980 SdHoareTripleChecker+Valid, 6108 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 02:56:27,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1980 Valid, 6108 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-17 02:56:27,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3507 states. [2024-11-17 02:56:27,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3507 to 3233. [2024-11-17 02:56:27,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3233 states, 1785 states have (on average 1.9282913165266107) internal successors, (3442), 3226 states have internal predecessors, (3442), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-17 02:56:27,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3233 states to 3233 states and 5450 transitions. [2024-11-17 02:56:27,729 INFO L78 Accepts]: Start accepts. Automaton has 3233 states and 5450 transitions. Word has length 13 [2024-11-17 02:56:27,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:56:27,730 INFO L471 AbstractCegarLoop]: Abstraction has 3233 states and 5450 transitions. [2024-11-17 02:56:27,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2024-11-17 02:56:27,731 INFO L276 IsEmpty]: Start isEmpty. Operand 3233 states and 5450 transitions. [2024-11-17 02:56:27,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-17 02:56:27,732 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:56:27,732 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:56:27,737 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 [2024-11-17 02:56:27,932 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 [2024-11-17 02:56:27,933 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr196REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-17 02:56:27,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:56:27,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1006381969, now seen corresponding path program 1 times [2024-11-17 02:56:27,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:56:27,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1646345998] [2024-11-17 02:56:27,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:56:27,934 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 [2024-11-17 02:56:27,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:56:27,936 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) [2024-11-17 02:56:27,937 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 [2024-11-17 02:56:28,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:56:28,022 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 02:56:28,024 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:56:28,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:56:28,035 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:56:28,035 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:56:28,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1646345998] [2024-11-17 02:56:28,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1646345998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:56:28,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:56:28,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:56:28,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142431640] [2024-11-17 02:56:28,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:56:28,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 02:56:28,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:56:28,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 02:56:28,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:56:28,036 INFO L87 Difference]: Start difference. First operand 3233 states and 5450 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2024-11-17 02:56:28,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:56:28,074 INFO L93 Difference]: Finished difference Result 3173 states and 5364 transitions. [2024-11-17 02:56:28,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 02:56:28,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2024-11-17 02:56:28,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:56:28,086 INFO L225 Difference]: With dead ends: 3173 [2024-11-17 02:56:28,086 INFO L226 Difference]: Without dead ends: 3173 [2024-11-17 02:56:28,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:56:28,087 INFO L432 NwaCegarLoop]: 3006 mSDtfsCounter, 71 mSDsluCounter, 2942 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 5948 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 02:56:28,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 5948 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 02:56:28,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3173 states. [2024-11-17 02:56:28,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3173 to 3173. [2024-11-17 02:56:28,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3173 states, 1749 states have (on average 1.9188107489994282) internal successors, (3356), 3166 states have internal predecessors, (3356), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-17 02:56:28,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3173 states to 3173 states and 5364 transitions. [2024-11-17 02:56:28,319 INFO L78 Accepts]: Start accepts. Automaton has 3173 states and 5364 transitions. Word has length 16 [2024-11-17 02:56:28,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:56:28,319 INFO L471 AbstractCegarLoop]: Abstraction has 3173 states and 5364 transitions. [2024-11-17 02:56:28,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2024-11-17 02:56:28,320 INFO L276 IsEmpty]: Start isEmpty. Operand 3173 states and 5364 transitions. [2024-11-17 02:56:28,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-17 02:56:28,320 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:56:28,321 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:56:28,325 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 (8)] Forceful destruction successful, exit code 0 [2024-11-17 02:56:28,524 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 [2024-11-17 02:56:28,525 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr102REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-17 02:56:28,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:56:28,527 INFO L85 PathProgramCache]: Analyzing trace with hash 524277502, now seen corresponding path program 1 times [2024-11-17 02:56:28,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:56:28,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103882011] [2024-11-17 02:56:28,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:56:28,527 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 [2024-11-17 02:56:28,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:56:28,530 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) [2024-11-17 02:56:28,531 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 [2024-11-17 02:56:28,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:56:28,622 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 02:56:28,623 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:56:28,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:56:28,678 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:56:28,678 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:56:28,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103882011] [2024-11-17 02:56:28,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2103882011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:56:28,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:56:28,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 02:56:28,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214233225] [2024-11-17 02:56:28,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:56:28,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:56:28,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:56:28,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:56:28,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:56:28,680 INFO L87 Difference]: Start difference. First operand 3173 states and 5364 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2024-11-17 02:56:29,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:56:29,072 INFO L93 Difference]: Finished difference Result 3426 states and 5574 transitions. [2024-11-17 02:56:29,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 02:56:29,073 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 17 [2024-11-17 02:56:29,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:56:29,080 INFO L225 Difference]: With dead ends: 3426 [2024-11-17 02:56:29,080 INFO L226 Difference]: Without dead ends: 3426 [2024-11-17 02:56:29,080 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:56:29,081 INFO L432 NwaCegarLoop]: 3087 mSDtfsCounter, 1441 mSDsluCounter, 5915 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1941 SdHoareTripleChecker+Valid, 9002 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-17 02:56:29,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1941 Valid, 9002 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-17 02:56:29,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3426 states. [2024-11-17 02:56:29,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3426 to 3176. [2024-11-17 02:56:29,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3176 states, 1752 states have (on average 1.9172374429223744) internal successors, (3359), 3169 states have internal predecessors, (3359), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-17 02:56:29,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3176 states to 3176 states and 5367 transitions. [2024-11-17 02:56:29,246 INFO L78 Accepts]: Start accepts. Automaton has 3176 states and 5367 transitions. Word has length 17 [2024-11-17 02:56:29,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:56:29,246 INFO L471 AbstractCegarLoop]: Abstraction has 3176 states and 5367 transitions. [2024-11-17 02:56:29,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2024-11-17 02:56:29,247 INFO L276 IsEmpty]: Start isEmpty. Operand 3176 states and 5367 transitions. [2024-11-17 02:56:29,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-17 02:56:29,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:56:29,247 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:56:29,251 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 [2024-11-17 02:56:29,450 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 [2024-11-17 02:56:29,451 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-17 02:56:29,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:56:29,452 INFO L85 PathProgramCache]: Analyzing trace with hash -927508710, now seen corresponding path program 1 times [2024-11-17 02:56:29,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:56:29,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1733478033] [2024-11-17 02:56:29,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:56:29,452 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 [2024-11-17 02:56:29,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:56:29,454 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) [2024-11-17 02:56:29,454 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 [2024-11-17 02:56:29,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:56:29,561 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 02:56:29,563 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:56:29,569 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-17 02:56:29,570 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-17 02:56:29,570 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-17 02:56:29,578 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2024-11-17 02:56:29,630 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-17 02:56:29,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-11-17 02:56:29,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:56:29,640 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:56:29,640 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:56:29,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1733478033] [2024-11-17 02:56:29,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1733478033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:56:29,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:56:29,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 02:56:29,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554810516] [2024-11-17 02:56:29,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:56:29,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:56:29,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:56:29,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:56:29,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:56:29,642 INFO L87 Difference]: Start difference. First operand 3176 states and 5367 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2024-11-17 02:56:30,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:56:30,689 INFO L93 Difference]: Finished difference Result 6005 states and 10199 transitions. [2024-11-17 02:56:30,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 02:56:30,690 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 18 [2024-11-17 02:56:30,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:56:30,703 INFO L225 Difference]: With dead ends: 6005 [2024-11-17 02:56:30,703 INFO L226 Difference]: Without dead ends: 6005 [2024-11-17 02:56:30,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:56:30,703 INFO L432 NwaCegarLoop]: 3099 mSDtfsCounter, 1945 mSDsluCounter, 5583 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2448 SdHoareTripleChecker+Valid, 8682 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-17 02:56:30,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2448 Valid, 8682 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-17 02:56:30,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6005 states. [2024-11-17 02:56:31,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6005 to 3175. [2024-11-17 02:56:31,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3175 states, 1751 states have (on average 1.9171901770416904) internal successors, (3357), 3168 states have internal predecessors, (3357), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-17 02:56:31,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3175 states to 3175 states and 5365 transitions. [2024-11-17 02:56:31,012 INFO L78 Accepts]: Start accepts. Automaton has 3175 states and 5365 transitions. Word has length 18 [2024-11-17 02:56:31,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:56:31,012 INFO L471 AbstractCegarLoop]: Abstraction has 3175 states and 5365 transitions. [2024-11-17 02:56:31,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2024-11-17 02:56:31,012 INFO L276 IsEmpty]: Start isEmpty. Operand 3175 states and 5365 transitions. [2024-11-17 02:56:31,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-17 02:56:31,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:56:31,013 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] [2024-11-17 02:56:31,019 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 (10)] Ended with exit code 0 [2024-11-17 02:56:31,213 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 [2024-11-17 02:56:31,213 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr512REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-17 02:56:31,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:56:31,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1405899085, now seen corresponding path program 1 times [2024-11-17 02:56:31,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:56:31,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1580285111] [2024-11-17 02:56:31,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:56:31,214 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 [2024-11-17 02:56:31,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:56:31,217 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) [2024-11-17 02:56:31,218 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 [2024-11-17 02:56:31,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:56:31,329 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 02:56:31,330 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:56:31,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:56:31,342 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:56:31,342 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:56:31,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1580285111] [2024-11-17 02:56:31,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1580285111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:56:31,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:56:31,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:56:31,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092557811] [2024-11-17 02:56:31,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:56:31,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 02:56:31,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:56:31,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 02:56:31,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:56:31,344 INFO L87 Difference]: Start difference. First operand 3175 states and 5365 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2024-11-17 02:56:31,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:56:31,379 INFO L93 Difference]: Finished difference Result 3115 states and 5279 transitions. [2024-11-17 02:56:31,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 02:56:31,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2024-11-17 02:56:31,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:56:31,384 INFO L225 Difference]: With dead ends: 3115 [2024-11-17 02:56:31,384 INFO L226 Difference]: Without dead ends: 3115 [2024-11-17 02:56:31,385 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:56:31,385 INFO L432 NwaCegarLoop]: 2963 mSDtfsCounter, 71 mSDsluCounter, 2899 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 5862 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 02:56:31,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 5862 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 02:56:31,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3115 states. [2024-11-17 02:56:31,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3115 to 3115. [2024-11-17 02:56:31,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3115 states, 1715 states have (on average 1.9072886297376093) internal successors, (3271), 3108 states have internal predecessors, (3271), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-17 02:56:31,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3115 states to 3115 states and 5279 transitions. [2024-11-17 02:56:31,589 INFO L78 Accepts]: Start accepts. Automaton has 3115 states and 5279 transitions. Word has length 20 [2024-11-17 02:56:31,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:56:31,590 INFO L471 AbstractCegarLoop]: Abstraction has 3115 states and 5279 transitions. [2024-11-17 02:56:31,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2024-11-17 02:56:31,590 INFO L276 IsEmpty]: Start isEmpty. Operand 3115 states and 5279 transitions. [2024-11-17 02:56:31,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-17 02:56:31,590 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:56:31,590 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] [2024-11-17 02:56:31,595 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 [2024-11-17 02:56:31,791 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 [2024-11-17 02:56:31,791 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr488REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-17 02:56:31,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:56:31,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1845616287, now seen corresponding path program 1 times [2024-11-17 02:56:31,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:56:31,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [651118405] [2024-11-17 02:56:31,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:56:31,792 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 [2024-11-17 02:56:31,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:56:31,793 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) [2024-11-17 02:56:31,794 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 [2024-11-17 02:56:31,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:56:31,917 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 02:56:31,918 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:56:31,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:56:31,944 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:56:31,944 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:56:31,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [651118405] [2024-11-17 02:56:31,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [651118405] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:56:31,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:56:31,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 02:56:31,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141901714] [2024-11-17 02:56:31,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:56:31,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:56:31,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:56:31,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:56:31,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:56:31,945 INFO L87 Difference]: Start difference. First operand 3115 states and 5279 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2024-11-17 02:56:32,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:56:32,009 INFO L93 Difference]: Finished difference Result 3085 states and 5221 transitions. [2024-11-17 02:56:32,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 02:56:32,010 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 22 [2024-11-17 02:56:32,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:56:32,015 INFO L225 Difference]: With dead ends: 3085 [2024-11-17 02:56:32,015 INFO L226 Difference]: Without dead ends: 3085 [2024-11-17 02:56:32,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:56:32,016 INFO L432 NwaCegarLoop]: 2918 mSDtfsCounter, 48 mSDsluCounter, 5809 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 8727 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 02:56:32,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 8727 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 02:56:32,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3085 states. [2024-11-17 02:56:32,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3085 to 3085. [2024-11-17 02:56:32,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3085 states, 1699 states have (on average 1.8911124190700412) internal successors, (3213), 3078 states have internal predecessors, (3213), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-17 02:56:32,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3085 states to 3085 states and 5221 transitions. [2024-11-17 02:56:32,168 INFO L78 Accepts]: Start accepts. Automaton has 3085 states and 5221 transitions. Word has length 22 [2024-11-17 02:56:32,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:56:32,168 INFO L471 AbstractCegarLoop]: Abstraction has 3085 states and 5221 transitions. [2024-11-17 02:56:32,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2024-11-17 02:56:32,168 INFO L276 IsEmpty]: Start isEmpty. Operand 3085 states and 5221 transitions. [2024-11-17 02:56:32,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-17 02:56:32,169 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:56:32,170 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] [2024-11-17 02:56:32,175 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 (12)] Forceful destruction successful, exit code 0 [2024-11-17 02:56:32,373 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 [2024-11-17 02:56:32,374 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr474REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-17 02:56:32,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:56:32,374 INFO L85 PathProgramCache]: Analyzing trace with hash 145491511, now seen corresponding path program 1 times [2024-11-17 02:56:32,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:56:32,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [143148492] [2024-11-17 02:56:32,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:56:32,375 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 [2024-11-17 02:56:32,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:56:32,376 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) [2024-11-17 02:56:32,377 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 [2024-11-17 02:56:32,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:56:32,509 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 02:56:32,511 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:56:32,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-17 02:56:32,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:56:32,568 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:56:32,568 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:56:32,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [143148492] [2024-11-17 02:56:32,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [143148492] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:56:32,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:56:32,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:56:32,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227372590] [2024-11-17 02:56:32,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:56:32,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:56:32,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:56:32,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:56:32,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:56:32,569 INFO L87 Difference]: Start difference. First operand 3085 states and 5221 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2024-11-17 02:56:34,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:56:34,814 INFO L93 Difference]: Finished difference Result 3089 states and 5221 transitions. [2024-11-17 02:56:34,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 02:56:34,815 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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 36 [2024-11-17 02:56:34,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:56:34,820 INFO L225 Difference]: With dead ends: 3089 [2024-11-17 02:56:34,820 INFO L226 Difference]: Without dead ends: 3089 [2024-11-17 02:56:34,820 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:56:34,820 INFO L432 NwaCegarLoop]: 2604 mSDtfsCounter, 1661 mSDsluCounter, 1570 mSDsCounter, 0 mSdLazyCounter, 2451 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2164 SdHoareTripleChecker+Valid, 4174 SdHoareTripleChecker+Invalid, 2458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-17 02:56:34,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2164 Valid, 4174 Invalid, 2458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2451 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-17 02:56:34,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3089 states. [2024-11-17 02:56:34,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3089 to 3081. [2024-11-17 02:56:34,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3081 states, 1699 states have (on average 1.8864037669217186) internal successors, (3205), 3074 states have internal predecessors, (3205), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-17 02:56:34,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3081 states to 3081 states and 5213 transitions. [2024-11-17 02:56:34,989 INFO L78 Accepts]: Start accepts. Automaton has 3081 states and 5213 transitions. Word has length 36 [2024-11-17 02:56:34,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:56:34,990 INFO L471 AbstractCegarLoop]: Abstraction has 3081 states and 5213 transitions. [2024-11-17 02:56:34,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2024-11-17 02:56:34,990 INFO L276 IsEmpty]: Start isEmpty. Operand 3081 states and 5213 transitions. [2024-11-17 02:56:34,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-17 02:56:34,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:56:34,991 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] [2024-11-17 02:56:34,997 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 (13)] Forceful destruction successful, exit code 0 [2024-11-17 02:56:35,192 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 [2024-11-17 02:56:35,192 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr475REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-17 02:56:35,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:56:35,193 INFO L85 PathProgramCache]: Analyzing trace with hash 145491512, now seen corresponding path program 1 times [2024-11-17 02:56:35,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:56:35,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [535352767] [2024-11-17 02:56:35,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:56:35,194 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 [2024-11-17 02:56:35,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:56:35,196 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) [2024-11-17 02:56:35,196 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 [2024-11-17 02:56:35,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:56:35,331 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 02:56:35,335 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:56:35,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-17 02:56:35,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:56:35,460 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:56:35,460 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:56:35,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [535352767] [2024-11-17 02:56:35,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [535352767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:56:35,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:56:35,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:56:35,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102012707] [2024-11-17 02:56:35,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:56:35,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:56:35,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:56:35,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:56:35,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:56:35,462 INFO L87 Difference]: Start difference. First operand 3081 states and 5213 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2024-11-17 02:56:38,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:56:38,351 INFO L93 Difference]: Finished difference Result 5390 states and 9544 transitions. [2024-11-17 02:56:38,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 02:56:38,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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 36 [2024-11-17 02:56:38,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:56:38,359 INFO L225 Difference]: With dead ends: 5390 [2024-11-17 02:56:38,359 INFO L226 Difference]: Without dead ends: 5390 [2024-11-17 02:56:38,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:56:38,361 INFO L432 NwaCegarLoop]: 4964 mSDtfsCounter, 1404 mSDsluCounter, 5973 mSDsCounter, 0 mSdLazyCounter, 2594 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1904 SdHoareTripleChecker+Valid, 10937 SdHoareTripleChecker+Invalid, 2597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-17 02:56:38,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1904 Valid, 10937 Invalid, 2597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2594 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-17 02:56:38,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5390 states. [2024-11-17 02:56:38,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5390 to 3077. [2024-11-17 02:56:38,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3077 states, 1699 states have (on average 1.881695114773396) internal successors, (3197), 3070 states have internal predecessors, (3197), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-17 02:56:38,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3077 states to 3077 states and 5205 transitions. [2024-11-17 02:56:38,652 INFO L78 Accepts]: Start accepts. Automaton has 3077 states and 5205 transitions. Word has length 36 [2024-11-17 02:56:38,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:56:38,654 INFO L471 AbstractCegarLoop]: Abstraction has 3077 states and 5205 transitions. [2024-11-17 02:56:38,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2024-11-17 02:56:38,654 INFO L276 IsEmpty]: Start isEmpty. Operand 3077 states and 5205 transitions. [2024-11-17 02:56:38,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-17 02:56:38,657 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:56:38,657 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] [2024-11-17 02:56:38,662 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 [2024-11-17 02:56:38,861 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 [2024-11-17 02:56:38,862 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr431REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-17 02:56:38,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:56:38,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1396727730, now seen corresponding path program 1 times [2024-11-17 02:56:38,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:56:38,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1408771080] [2024-11-17 02:56:38,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:56:38,863 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 [2024-11-17 02:56:38,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:56:38,866 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) [2024-11-17 02:56:38,867 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 [2024-11-17 02:56:39,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:56:39,021 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 02:56:39,023 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:56:39,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:56:39,049 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:56:39,049 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:56:39,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1408771080] [2024-11-17 02:56:39,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1408771080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:56:39,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:56:39,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 02:56:39,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030904918] [2024-11-17 02:56:39,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:56:39,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:56:39,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:56:39,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:56:39,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:56:39,050 INFO L87 Difference]: Start difference. First operand 3077 states and 5205 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-11-17 02:56:39,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:56:39,099 INFO L93 Difference]: Finished difference Result 3065 states and 5185 transitions. [2024-11-17 02:56:39,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 02:56:39,099 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 56 [2024-11-17 02:56:39,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:56:39,105 INFO L225 Difference]: With dead ends: 3065 [2024-11-17 02:56:39,105 INFO L226 Difference]: Without dead ends: 3065 [2024-11-17 02:56:39,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:56:39,105 INFO L432 NwaCegarLoop]: 2912 mSDtfsCounter, 21 mSDsluCounter, 5792 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 8704 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 02:56:39,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 8704 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 02:56:39,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3065 states. [2024-11-17 02:56:39,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3065 to 3065. [2024-11-17 02:56:39,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3065 states, 1687 states have (on average 1.883224659158269) internal successors, (3177), 3058 states have internal predecessors, (3177), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-17 02:56:39,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3065 states to 3065 states and 5185 transitions. [2024-11-17 02:56:39,294 INFO L78 Accepts]: Start accepts. Automaton has 3065 states and 5185 transitions. Word has length 56 [2024-11-17 02:56:39,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:56:39,294 INFO L471 AbstractCegarLoop]: Abstraction has 3065 states and 5185 transitions. [2024-11-17 02:56:39,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-11-17 02:56:39,295 INFO L276 IsEmpty]: Start isEmpty. Operand 3065 states and 5185 transitions. [2024-11-17 02:56:39,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-17 02:56:39,297 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:56:39,297 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] [2024-11-17 02:56:39,308 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 (15)] Forceful destruction successful, exit code 0 [2024-11-17 02:56:39,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /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 [2024-11-17 02:56:39,499 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr431REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-17 02:56:39,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:56:39,499 INFO L85 PathProgramCache]: Analyzing trace with hash 733311738, now seen corresponding path program 1 times [2024-11-17 02:56:39,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:56:39,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [698509089] [2024-11-17 02:56:39,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:56:39,500 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 [2024-11-17 02:56:39,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:56:39,503 INFO L229 MonitoredProcess]: Starting monitored process 16 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) [2024-11-17 02:56:39,504 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 (16)] Waiting until timeout for monitored process [2024-11-17 02:56:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:56:39,767 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-17 02:56:39,770 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:56:39,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-17 02:56:39,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-17 02:56:40,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-17 02:56:40,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-17 02:56:40,154 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-17 02:56:40,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-17 02:56:40,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:56:40,166 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:56:40,166 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:56:40,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [698509089] [2024-11-17 02:56:40,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [698509089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:56:40,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:56:40,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:56:40,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117527684] [2024-11-17 02:56:40,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:56:40,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:56:40,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:56:40,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:56:40,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:56:40,167 INFO L87 Difference]: Start difference. First operand 3065 states and 5185 transitions. Second operand has 4 states, 3 states have (on average 21.333333333333332) 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) [2024-11-17 02:56:42,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:56:42,157 INFO L93 Difference]: Finished difference Result 3027 states and 5147 transitions. [2024-11-17 02:56:42,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 02:56:42,158 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.333333333333332) 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 [2024-11-17 02:56:42,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:56:42,164 INFO L225 Difference]: With dead ends: 3027 [2024-11-17 02:56:42,164 INFO L226 Difference]: Without dead ends: 3027 [2024-11-17 02:56:42,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:56:42,166 INFO L432 NwaCegarLoop]: 2483 mSDtfsCounter, 3170 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 1028 mSolverCounterSat, 546 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3673 SdHoareTripleChecker+Valid, 2609 SdHoareTripleChecker+Invalid, 1574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 546 IncrementalHoareTripleChecker+Valid, 1028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-17 02:56:42,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3673 Valid, 2609 Invalid, 1574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [546 Valid, 1028 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-17 02:56:42,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3027 states. [2024-11-17 02:56:42,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3027 to 2988. [2024-11-17 02:56:42,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2988 states, 1648 states have (on average 1.858616504854369) internal successors, (3063), 2981 states have internal predecessors, (3063), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-17 02:56:42,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2988 states to 2988 states and 5071 transitions. [2024-11-17 02:56:42,308 INFO L78 Accepts]: Start accepts. Automaton has 2988 states and 5071 transitions. Word has length 64 [2024-11-17 02:56:42,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:56:42,310 INFO L471 AbstractCegarLoop]: Abstraction has 2988 states and 5071 transitions. [2024-11-17 02:56:42,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.333333333333332) 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) [2024-11-17 02:56:42,310 INFO L276 IsEmpty]: Start isEmpty. Operand 2988 states and 5071 transitions. [2024-11-17 02:56:42,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-17 02:56:42,312 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:56:42,312 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, 1, 1, 1, 1, 1] [2024-11-17 02:56:42,319 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 (16)] Ended with exit code 0 [2024-11-17 02:56:42,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /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 [2024-11-17 02:56:42,513 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr424REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-17 02:56:42,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:56:42,514 INFO L85 PathProgramCache]: Analyzing trace with hash -276580526, now seen corresponding path program 1 times [2024-11-17 02:56:42,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:56:42,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [400960807] [2024-11-17 02:56:42,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:56:42,514 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 [2024-11-17 02:56:42,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:56:42,518 INFO L229 MonitoredProcess]: Starting monitored process 17 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) [2024-11-17 02:56:42,518 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 (17)] Waiting until timeout for monitored process [2024-11-17 02:56:42,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:56:42,716 INFO L255 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 02:56:42,718 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:56:42,726 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-17 02:56:42,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-17 02:56:42,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-17 02:56:42,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:56:42,759 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:56:42,759 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:56:42,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [400960807] [2024-11-17 02:56:42,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [400960807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:56:42,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:56:42,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 02:56:42,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809729365] [2024-11-17 02:56:42,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:56:42,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 02:56:42,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:56:42,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 02:56:42,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:56:42,763 INFO L87 Difference]: Start difference. First operand 2988 states and 5071 transitions. Second operand has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-17 02:56:43,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:56:43,938 INFO L93 Difference]: Finished difference Result 2987 states and 5070 transitions. [2024-11-17 02:56:43,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 02:56:43,938 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 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 69 [2024-11-17 02:56:43,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:56:43,943 INFO L225 Difference]: With dead ends: 2987 [2024-11-17 02:56:43,943 INFO L226 Difference]: Without dead ends: 2987 [2024-11-17 02:56:43,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-17 02:56:43,944 INFO L432 NwaCegarLoop]: 2885 mSDtfsCounter, 2 mSDsluCounter, 7433 mSDsCounter, 0 mSdLazyCounter, 1229 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10318 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-17 02:56:43,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 10318 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1229 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-17 02:56:43,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2987 states. [2024-11-17 02:56:44,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2987 to 2987. [2024-11-17 02:56:44,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2987 states, 1648 states have (on average 1.858009708737864) internal successors, (3062), 2980 states have internal predecessors, (3062), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-17 02:56:44,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2987 states to 2987 states and 5070 transitions. [2024-11-17 02:56:44,095 INFO L78 Accepts]: Start accepts. Automaton has 2987 states and 5070 transitions. Word has length 69 [2024-11-17 02:56:44,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:56:44,095 INFO L471 AbstractCegarLoop]: Abstraction has 2987 states and 5070 transitions. [2024-11-17 02:56:44,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-17 02:56:44,095 INFO L276 IsEmpty]: Start isEmpty. Operand 2987 states and 5070 transitions. [2024-11-17 02:56:44,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-17 02:56:44,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:56:44,096 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, 1, 1, 1, 1, 1] [2024-11-17 02:56:44,103 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 (17)] Forceful destruction successful, exit code 0 [2024-11-17 02:56:44,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /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 [2024-11-17 02:56:44,296 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr425REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-17 02:56:44,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:56:44,297 INFO L85 PathProgramCache]: Analyzing trace with hash -276580525, now seen corresponding path program 1 times [2024-11-17 02:56:44,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:56:44,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1814707929] [2024-11-17 02:56:44,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:56:44,297 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 [2024-11-17 02:56:44,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:56:44,300 INFO L229 MonitoredProcess]: Starting monitored process 18 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) [2024-11-17 02:56:44,301 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 (18)] Waiting until timeout for monitored process [2024-11-17 02:56:44,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:56:44,504 INFO L255 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-17 02:56:44,506 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:56:44,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-17 02:56:44,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-17 02:56:44,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-17 02:56:44,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-17 02:56:44,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:56:44,577 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:56:44,577 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:56:44,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1814707929] [2024-11-17 02:56:44,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1814707929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:56:44,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:56:44,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 02:56:44,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197830048] [2024-11-17 02:56:44,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:56:44,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 02:56:44,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:56:44,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 02:56:44,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:56:44,578 INFO L87 Difference]: Start difference. First operand 2987 states and 5070 transitions. Second operand has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-17 02:56:46,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:56:46,029 INFO L93 Difference]: Finished difference Result 2986 states and 5069 transitions. [2024-11-17 02:56:46,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 02:56:46,030 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 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 69 [2024-11-17 02:56:46,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:56:46,036 INFO L225 Difference]: With dead ends: 2986 [2024-11-17 02:56:46,036 INFO L226 Difference]: Without dead ends: 2986 [2024-11-17 02:56:46,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-17 02:56:46,037 INFO L432 NwaCegarLoop]: 2885 mSDtfsCounter, 1 mSDsluCounter, 7477 mSDsCounter, 0 mSdLazyCounter, 1182 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 10362 SdHoareTripleChecker+Invalid, 1183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-17 02:56:46,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 10362 Invalid, 1183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1182 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-17 02:56:46,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2986 states. [2024-11-17 02:56:46,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2986 to 2986. [2024-11-17 02:56:46,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2986 states, 1647 states have (on average 1.8585306618093502) internal successors, (3061), 2979 states have internal predecessors, (3061), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-17 02:56:46,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2986 states to 2986 states and 5069 transitions. [2024-11-17 02:56:46,195 INFO L78 Accepts]: Start accepts. Automaton has 2986 states and 5069 transitions. Word has length 69 [2024-11-17 02:56:46,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:56:46,196 INFO L471 AbstractCegarLoop]: Abstraction has 2986 states and 5069 transitions. [2024-11-17 02:56:46,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-17 02:56:46,196 INFO L276 IsEmpty]: Start isEmpty. Operand 2986 states and 5069 transitions. [2024-11-17 02:56:46,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-17 02:56:46,196 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:56:46,196 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:56:46,203 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 (18)] Forceful destruction successful, exit code 0 [2024-11-17 02:56:46,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /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 [2024-11-17 02:56:46,397 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr420REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-17 02:56:46,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:56:46,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1173048401, now seen corresponding path program 1 times [2024-11-17 02:56:46,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:56:46,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1374120813] [2024-11-17 02:56:46,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:56:46,399 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 [2024-11-17 02:56:46,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:56:46,401 INFO L229 MonitoredProcess]: Starting monitored process 19 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) [2024-11-17 02:56:46,402 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 (19)] Waiting until timeout for monitored process [2024-11-17 02:56:46,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:56:46,601 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 02:56:46,603 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:56:46,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:56:46,617 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:56:46,617 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:56:46,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1374120813] [2024-11-17 02:56:46,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1374120813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:56:46,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:56:46,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 02:56:46,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553900625] [2024-11-17 02:56:46,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:56:46,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:56:46,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:56:46,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:56:46,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:56:46,621 INFO L87 Difference]: Start difference. First operand 2986 states and 5069 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 02:56:46,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:56:46,663 INFO L93 Difference]: Finished difference Result 2989 states and 5073 transitions. [2024-11-17 02:56:46,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 02:56:46,664 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2024-11-17 02:56:46,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:56:46,678 INFO L225 Difference]: With dead ends: 2989 [2024-11-17 02:56:46,678 INFO L226 Difference]: Without dead ends: 2989 [2024-11-17 02:56:46,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:56:46,678 INFO L432 NwaCegarLoop]: 2885 mSDtfsCounter, 0 mSDsluCounter, 5765 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8650 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 02:56:46,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8650 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 02:56:46,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2989 states. [2024-11-17 02:56:46,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2989 to 2989. [2024-11-17 02:56:46,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2989 states, 1649 states have (on average 1.858095815645846) internal successors, (3064), 2982 states have internal predecessors, (3064), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 3 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2024-11-17 02:56:46,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2989 states to 2989 states and 5073 transitions. [2024-11-17 02:56:46,839 INFO L78 Accepts]: Start accepts. Automaton has 2989 states and 5073 transitions. Word has length 77 [2024-11-17 02:56:46,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:56:46,839 INFO L471 AbstractCegarLoop]: Abstraction has 2989 states and 5073 transitions. [2024-11-17 02:56:46,839 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 02:56:46,840 INFO L276 IsEmpty]: Start isEmpty. Operand 2989 states and 5073 transitions. [2024-11-17 02:56:46,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-17 02:56:46,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:56:46,840 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:56:46,849 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 (19)] Forceful destruction successful, exit code 0 [2024-11-17 02:56:47,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /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 [2024-11-17 02:56:47,045 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr420REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-17 02:56:47,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:56:47,045 INFO L85 PathProgramCache]: Analyzing trace with hash 818684524, now seen corresponding path program 1 times [2024-11-17 02:56:47,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:56:47,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1935463574] [2024-11-17 02:56:47,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:56:47,046 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 [2024-11-17 02:56:47,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:56:47,048 INFO L229 MonitoredProcess]: Starting monitored process 20 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) [2024-11-17 02:56:47,049 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 (20)] Waiting until timeout for monitored process [2024-11-17 02:56:47,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:56:47,253 INFO L255 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 02:56:47,255 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:56:47,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:56:47,274 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 02:56:47,313 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:56:47,313 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:56:47,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1935463574] [2024-11-17 02:56:47,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1935463574] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 02:56:47,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 02:56:47,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-17 02:56:47,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886520143] [2024-11-17 02:56:47,314 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 02:56:47,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-17 02:56:47,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:56:47,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-17 02:56:47,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-17 02:56:47,315 INFO L87 Difference]: Start difference. First operand 2989 states and 5073 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 02:56:47,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:56:47,455 INFO L93 Difference]: Finished difference Result 3001 states and 5090 transitions. [2024-11-17 02:56:47,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-17 02:56:47,456 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 78 [2024-11-17 02:56:47,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:56:47,464 INFO L225 Difference]: With dead ends: 3001 [2024-11-17 02:56:47,464 INFO L226 Difference]: Without dead ends: 3001 [2024-11-17 02:56:47,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-17 02:56:47,465 INFO L432 NwaCegarLoop]: 2885 mSDtfsCounter, 7 mSDsluCounter, 5767 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 8652 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 02:56:47,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 8652 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 02:56:47,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3001 states. [2024-11-17 02:56:47,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3001 to 2999. [2024-11-17 02:56:47,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2999 states, 1658 states have (on average 1.8570566948130278) internal successors, (3079), 2991 states have internal predecessors, (3079), 1005 states have call successors, (1005), 4 states have call predecessors, (1005), 4 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2024-11-17 02:56:47,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2999 states to 2999 states and 5088 transitions. [2024-11-17 02:56:47,665 INFO L78 Accepts]: Start accepts. Automaton has 2999 states and 5088 transitions. Word has length 78 [2024-11-17 02:56:47,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:56:47,665 INFO L471 AbstractCegarLoop]: Abstraction has 2999 states and 5088 transitions. [2024-11-17 02:56:47,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 02:56:47,665 INFO L276 IsEmpty]: Start isEmpty. Operand 2999 states and 5088 transitions. [2024-11-17 02:56:47,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-17 02:56:47,666 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:56:47,666 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:56:47,673 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 (20)] Forceful destruction successful, exit code 0 [2024-11-17 02:56:47,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /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 [2024-11-17 02:56:47,867 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr420REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-17 02:56:47,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:56:47,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1675164399, now seen corresponding path program 2 times [2024-11-17 02:56:47,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:56:47,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1713108298] [2024-11-17 02:56:47,868 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 02:56:47,868 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 [2024-11-17 02:56:47,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:56:47,871 INFO L229 MonitoredProcess]: Starting monitored process 21 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) [2024-11-17 02:56:47,872 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 (21)] Waiting until timeout for monitored process [2024-11-17 02:56:48,187 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 02:56:48,187 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 02:56:48,196 INFO L255 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-17 02:56:48,198 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:56:48,229 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:56:48,229 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 02:56:48,315 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:56:48,315 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:56:48,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1713108298] [2024-11-17 02:56:48,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1713108298] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 02:56:48,315 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 02:56:48,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-17 02:56:48,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698018008] [2024-11-17 02:56:48,316 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 02:56:48,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-17 02:56:48,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:56:48,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-17 02:56:48,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-17 02:56:48,317 INFO L87 Difference]: Start difference. First operand 2999 states and 5088 transitions. Second operand has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 14 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 02:56:48,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:56:48,620 INFO L93 Difference]: Finished difference Result 3014 states and 5110 transitions. [2024-11-17 02:56:48,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-17 02:56:48,621 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 14 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 81 [2024-11-17 02:56:48,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:56:48,628 INFO L225 Difference]: With dead ends: 3014 [2024-11-17 02:56:48,628 INFO L226 Difference]: Without dead ends: 3010 [2024-11-17 02:56:48,629 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-11-17 02:56:48,629 INFO L432 NwaCegarLoop]: 2885 mSDtfsCounter, 10 mSDsluCounter, 20174 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 23059 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 02:56:48,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 23059 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 02:56:48,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3010 states. [2024-11-17 02:56:48,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3010 to 3008. [2024-11-17 02:56:48,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3008 states, 1667 states have (on average 1.8542291541691662) internal successors, (3091), 3000 states have internal predecessors, (3091), 1005 states have call successors, (1005), 4 states have call predecessors, (1005), 4 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2024-11-17 02:56:48,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3008 states to 3008 states and 5100 transitions. [2024-11-17 02:56:48,826 INFO L78 Accepts]: Start accepts. Automaton has 3008 states and 5100 transitions. Word has length 81 [2024-11-17 02:56:48,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:56:48,827 INFO L471 AbstractCegarLoop]: Abstraction has 3008 states and 5100 transitions. [2024-11-17 02:56:48,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 14 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 02:56:48,827 INFO L276 IsEmpty]: Start isEmpty. Operand 3008 states and 5100 transitions. [2024-11-17 02:56:48,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-17 02:56:48,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:56:48,827 INFO L215 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:56:48,836 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 (21)] Forceful destruction successful, exit code 0 [2024-11-17 02:56:49,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /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 [2024-11-17 02:56:49,028 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr420REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-17 02:56:49,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:56:49,029 INFO L85 PathProgramCache]: Analyzing trace with hash 898881999, now seen corresponding path program 3 times [2024-11-17 02:56:49,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:56:49,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2016791761] [2024-11-17 02:56:49,029 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-17 02:56:49,029 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 [2024-11-17 02:56:49,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:56:49,032 INFO L229 MonitoredProcess]: Starting monitored process 22 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) [2024-11-17 02:56:49,033 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 (22)] Waiting until timeout for monitored process [2024-11-17 02:56:49,564 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-17 02:56:49,565 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 02:56:49,575 INFO L255 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-17 02:56:49,577 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:56:49,683 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:56:49,683 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 02:56:50,022 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:56:50,023 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:56:50,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2016791761] [2024-11-17 02:56:50,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2016791761] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 02:56:50,023 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 02:56:50,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-11-17 02:56:50,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402407994] [2024-11-17 02:56:50,023 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 02:56:50,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-17 02:56:50,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:56:50,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-17 02:56:50,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-11-17 02:56:50,024 INFO L87 Difference]: Start difference. First operand 3008 states and 5100 transitions. Second operand has 26 states, 26 states have (on average 3.769230769230769) internal successors, (98), 26 states have internal predecessors, (98), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 02:56:51,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:56:51,148 INFO L93 Difference]: Finished difference Result 3032 states and 5139 transitions. [2024-11-17 02:56:51,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-17 02:56:51,149 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.769230769230769) internal successors, (98), 26 states have internal predecessors, (98), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 87 [2024-11-17 02:56:51,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:56:51,155 INFO L225 Difference]: With dead ends: 3032 [2024-11-17 02:56:51,155 INFO L226 Difference]: Without dead ends: 3026 [2024-11-17 02:56:51,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-11-17 02:56:51,156 INFO L432 NwaCegarLoop]: 2886 mSDtfsCounter, 16 mSDsluCounter, 31714 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 34600 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-17 02:56:51,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 34600 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-17 02:56:51,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3026 states. [2024-11-17 02:56:51,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3026 to 3026. [2024-11-17 02:56:51,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3026 states, 1685 states have (on average 1.8480712166172106) internal successors, (3114), 3018 states have internal predecessors, (3114), 1005 states have call successors, (1005), 4 states have call predecessors, (1005), 4 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2024-11-17 02:56:51,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3026 states to 3026 states and 5123 transitions. [2024-11-17 02:56:51,348 INFO L78 Accepts]: Start accepts. Automaton has 3026 states and 5123 transitions. Word has length 87 [2024-11-17 02:56:51,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:56:51,348 INFO L471 AbstractCegarLoop]: Abstraction has 3026 states and 5123 transitions. [2024-11-17 02:56:51,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.769230769230769) internal successors, (98), 26 states have internal predecessors, (98), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 02:56:51,348 INFO L276 IsEmpty]: Start isEmpty. Operand 3026 states and 5123 transitions. [2024-11-17 02:56:51,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-17 02:56:51,349 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:56:51,349 INFO L215 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:56:51,357 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 (22)] Forceful destruction successful, exit code 0 [2024-11-17 02:56:51,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /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 [2024-11-17 02:56:51,550 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr420REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-17 02:56:51,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:56:51,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1582850161, now seen corresponding path program 4 times [2024-11-17 02:56:51,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:56:51,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1643543663] [2024-11-17 02:56:51,551 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-17 02:56:51,551 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 [2024-11-17 02:56:51,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:56:51,552 INFO L229 MonitoredProcess]: Starting monitored process 23 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) [2024-11-17 02:56:51,553 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 (23)] Waiting until timeout for monitored process [2024-11-17 02:56:51,914 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-17 02:56:51,914 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 02:56:51,925 INFO L255 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-17 02:56:51,928 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:56:52,175 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:56:52,175 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 02:56:53,071 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:56:53,072 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:56:53,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1643543663] [2024-11-17 02:56:53,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1643543663] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 02:56:53,072 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 02:56:53,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2024-11-17 02:56:53,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385347430] [2024-11-17 02:56:53,073 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 02:56:53,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-11-17 02:56:53,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:56:53,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-11-17 02:56:53,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2024-11-17 02:56:53,075 INFO L87 Difference]: Start difference. First operand 3026 states and 5123 transitions. Second operand has 50 states, 50 states have (on average 2.44) internal successors, (122), 50 states have internal predecessors, (122), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 02:56:56,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:56:56,987 INFO L93 Difference]: Finished difference Result 3066 states and 5195 transitions. [2024-11-17 02:56:56,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-11-17 02:56:56,988 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 2.44) internal successors, (122), 50 states have internal predecessors, (122), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 99 [2024-11-17 02:56:56,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:56:56,995 INFO L225 Difference]: With dead ends: 3066 [2024-11-17 02:56:56,995 INFO L226 Difference]: Without dead ends: 3062 [2024-11-17 02:56:56,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=2713, Invalid=5843, Unknown=0, NotChecked=0, Total=8556 [2024-11-17 02:56:56,998 INFO L432 NwaCegarLoop]: 2885 mSDtfsCounter, 44 mSDsluCounter, 69170 mSDsCounter, 0 mSdLazyCounter, 1946 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 72055 SdHoareTripleChecker+Invalid, 2006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-17 02:56:56,998 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 72055 Invalid, 2006 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [60 Valid, 1946 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-17 02:56:57,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3062 states. [2024-11-17 02:56:57,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3062 to 3060. [2024-11-17 02:56:57,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3060 states, 1719 states have (on average 1.8382780686445608) internal successors, (3160), 3052 states have internal predecessors, (3160), 1005 states have call successors, (1005), 4 states have call predecessors, (1005), 4 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2024-11-17 02:56:57,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3060 states to 3060 states and 5169 transitions. [2024-11-17 02:56:57,169 INFO L78 Accepts]: Start accepts. Automaton has 3060 states and 5169 transitions. Word has length 99 [2024-11-17 02:56:57,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:56:57,169 INFO L471 AbstractCegarLoop]: Abstraction has 3060 states and 5169 transitions. [2024-11-17 02:56:57,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.44) internal successors, (122), 50 states have internal predecessors, (122), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 02:56:57,169 INFO L276 IsEmpty]: Start isEmpty. Operand 3060 states and 5169 transitions. [2024-11-17 02:56:57,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-17 02:56:57,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:56:57,170 INFO L215 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:56:57,182 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 (23)] Ended with exit code 0 [2024-11-17 02:56:57,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /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 [2024-11-17 02:56:57,371 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr420REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-17 02:56:57,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:56:57,371 INFO L85 PathProgramCache]: Analyzing trace with hash 583951215, now seen corresponding path program 5 times [2024-11-17 02:56:57,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:56:57,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1343382993] [2024-11-17 02:56:57,372 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-17 02:56:57,372 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 [2024-11-17 02:56:57,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:56:57,373 INFO L229 MonitoredProcess]: Starting monitored process 24 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) [2024-11-17 02:56:57,374 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 (24)] Waiting until timeout for monitored process [2024-11-17 02:56:58,357 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2024-11-17 02:56:58,358 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 02:56:58,377 INFO L255 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-11-17 02:56:58,384 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:56:58,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-17 02:56:58,464 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-17 02:56:58,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-17 02:56:58,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-17 02:56:58,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-11-17 02:56:59,155 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 02:56:59,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-17 02:56:59,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-17 02:56:59,208 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-17 02:56:59,208 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 02:56:59,494 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:56:59,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1343382993] [2024-11-17 02:56:59,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1343382993] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 02:56:59,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1094557115] [2024-11-17 02:56:59,495 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-17 02:56:59,495 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-17 02:56:59,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-17 02:56:59,496 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-17 02:56:59,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process