./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.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 85752dfa9e642a242de1661b045d725551498d8fafaaba42a5d915ccb8e5b948 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 11:53:31,350 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 11:53:31,431 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-13 11:53:31,440 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 11:53:31,440 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 11:53:31,473 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 11:53:31,474 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 11:53:31,474 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 11:53:31,475 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 11:53:31,475 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 11:53:31,476 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 11:53:31,476 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 11:53:31,477 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 11:53:31,478 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 11:53:31,480 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 11:53:31,480 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 11:53:31,481 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 11:53:31,481 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 11:53:31,481 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 11:53:31,481 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 11:53:31,482 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-13 11:53:31,483 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-13 11:53:31,483 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-13 11:53:31,484 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 11:53:31,484 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 11:53:31,484 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 11:53:31,485 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 11:53:31,485 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 11:53:31,485 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 11:53:31,486 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 11:53:31,486 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 11:53:31,486 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 11:53:31,487 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 11:53:31,487 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 11:53:31,489 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 11:53:31,489 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 11:53:31,490 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 11:53:31,490 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 11:53:31,490 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 11:53:31,490 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 11:53:31,490 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 11:53:31,491 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 11:53:31,491 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85752dfa9e642a242de1661b045d725551498d8fafaaba42a5d915ccb8e5b948 [2024-10-13 11:53:31,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 11:53:31,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 11:53:31,790 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 11:53:31,791 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 11:53:31,791 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 11:53:31,792 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i [2024-10-13 11:53:33,228 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 11:53:33,544 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 11:53:33,545 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i [2024-10-13 11:53:33,567 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b06e2f63c/d472a6f9cec242f780f8d9ca0b746d9a/FLAG89a113f48 [2024-10-13 11:53:33,584 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b06e2f63c/d472a6f9cec242f780f8d9ca0b746d9a [2024-10-13 11:53:33,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 11:53:33,588 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 11:53:33,590 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 11:53:33,590 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 11:53:33,596 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 11:53:33,596 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:53:33" (1/1) ... [2024-10-13 11:53:33,597 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@507515c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:53:33, skipping insertion in model container [2024-10-13 11:53:33,598 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:53:33" (1/1) ... [2024-10-13 11:53:33,655 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 11:53:34,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 11:53:34,292 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-10-13 11:53:34,293 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@159cb3c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:53:34, skipping insertion in model container [2024-10-13 11:53:34,293 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 11:53:34,293 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-13 11:53:34,295 INFO L158 Benchmark]: Toolchain (without parser) took 706.30ms. Allocated memory is still 159.4MB. Free memory was 103.2MB in the beginning and 77.2MB in the end (delta: 26.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-10-13 11:53:34,296 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 159.4MB. Free memory was 119.0MB in the beginning and 118.9MB in the end (delta: 153.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 11:53:34,297 INFO L158 Benchmark]: CACSL2BoogieTranslator took 703.38ms. Allocated memory is still 159.4MB. Free memory was 102.7MB in the beginning and 77.2MB in the end (delta: 25.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-10-13 11:53:34,298 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 159.4MB. Free memory was 119.0MB in the beginning and 118.9MB in the end (delta: 153.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 703.38ms. Allocated memory is still 159.4MB. Free memory was 102.7MB in the beginning and 77.2MB in the end (delta: 25.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 737]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.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 85752dfa9e642a242de1661b045d725551498d8fafaaba42a5d915ccb8e5b948 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 11:53:36,387 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 11:53:36,471 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-13 11:53:36,476 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 11:53:36,476 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 11:53:36,507 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 11:53:36,510 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 11:53:36,510 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 11:53:36,511 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 11:53:36,512 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 11:53:36,512 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 11:53:36,513 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 11:53:36,513 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 11:53:36,517 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 11:53:36,517 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 11:53:36,518 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 11:53:36,518 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 11:53:36,518 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 11:53:36,519 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 11:53:36,519 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 11:53:36,519 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-13 11:53:36,520 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-13 11:53:36,520 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-13 11:53:36,524 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 11:53:36,524 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 11:53:36,525 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-13 11:53:36,525 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 11:53:36,525 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-13 11:53:36,526 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 11:53:36,526 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 11:53:36,526 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 11:53:36,526 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 11:53:36,527 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 11:53:36,527 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 11:53:36,527 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 11:53:36,527 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 11:53:36,528 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 11:53:36,528 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 11:53:36,528 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-13 11:53:36,528 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-13 11:53:36,529 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 11:53:36,529 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 11:53:36,529 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 11:53:36,530 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 11:53:36,530 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-13 11:53:36,531 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85752dfa9e642a242de1661b045d725551498d8fafaaba42a5d915ccb8e5b948 [2024-10-13 11:53:36,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 11:53:36,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 11:53:36,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 11:53:36,897 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 11:53:36,898 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 11:53:36,901 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i [2024-10-13 11:53:38,452 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 11:53:38,782 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 11:53:38,783 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i [2024-10-13 11:53:38,802 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17e1091b1/e60fb94c9ab04dbb8e8f3a2ed2963d33/FLAGf0d1c804a [2024-10-13 11:53:39,031 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17e1091b1/e60fb94c9ab04dbb8e8f3a2ed2963d33 [2024-10-13 11:53:39,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 11:53:39,035 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 11:53:39,036 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 11:53:39,036 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 11:53:39,041 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 11:53:39,042 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:53:39" (1/1) ... [2024-10-13 11:53:39,043 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77532951 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:53:39, skipping insertion in model container [2024-10-13 11:53:39,043 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:53:39" (1/1) ... [2024-10-13 11:53:39,104 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 11:53:39,732 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 11:53:39,749 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-13 11:53:39,767 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 11:53:39,858 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 11:53:39,863 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 11:53:39,993 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 11:53:40,042 INFO L204 MainTranslator]: Completed translation [2024-10-13 11:53:40,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:53:40 WrapperNode [2024-10-13 11:53:40,043 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 11:53:40,044 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 11:53:40,044 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 11:53:40,044 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 11:53:40,051 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:53:40" (1/1) ... [2024-10-13 11:53:40,106 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:53:40" (1/1) ... [2024-10-13 11:53:40,184 INFO L138 Inliner]: procedures = 180, calls = 474, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1759 [2024-10-13 11:53:40,184 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 11:53:40,185 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 11:53:40,185 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 11:53:40,185 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 11:53:40,197 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:53:40" (1/1) ... [2024-10-13 11:53:40,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:53:40" (1/1) ... [2024-10-13 11:53:40,214 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:53:40" (1/1) ... [2024-10-13 11:53:40,383 INFO L175 MemorySlicer]: Split 443 memory accesses to 3 slices as follows [2, 417, 24]. 94 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 99 writes are split as follows [0, 98, 1]. [2024-10-13 11:53:40,383 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:53:40" (1/1) ... [2024-10-13 11:53:40,383 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:53:40" (1/1) ... [2024-10-13 11:53:40,457 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:53:40" (1/1) ... [2024-10-13 11:53:40,470 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:53:40" (1/1) ... [2024-10-13 11:53:40,482 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:53:40" (1/1) ... [2024-10-13 11:53:40,495 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:53:40" (1/1) ... [2024-10-13 11:53:40,513 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 11:53:40,514 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 11:53:40,515 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 11:53:40,515 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 11:53:40,516 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:53:40" (1/1) ... [2024-10-13 11:53:40,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 11:53:40,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 11:53:40,559 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) [2024-10-13 11:53:40,563 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 [2024-10-13 11:53:40,617 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-10-13 11:53:40,618 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-10-13 11:53:40,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-10-13 11:53:40,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-10-13 11:53:40,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-10-13 11:53:40,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-13 11:53:40,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-13 11:53:40,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-13 11:53:40,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-13 11:53:40,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-13 11:53:40,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-10-13 11:53:40,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-10-13 11:53:40,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-10-13 11:53:40,621 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-10-13 11:53:40,621 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-10-13 11:53:40,621 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-10-13 11:53:40,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 11:53:40,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 11:53:40,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-13 11:53:40,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-13 11:53:40,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-13 11:53:40,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 11:53:40,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-13 11:53:40,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-13 11:53:40,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-13 11:53:40,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 11:53:40,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-13 11:53:40,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-13 11:53:40,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-13 11:53:40,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-13 11:53:40,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-13 11:53:40,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-13 11:53:40,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 11:53:40,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 11:53:40,930 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 11:53:40,933 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 11:53:40,955 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-13 11:53:41,001 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-13 11:53:41,021 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-13 11:53:46,812 INFO L? ?]: Removed 1907 outVars from TransFormulas that were not future-live. [2024-10-13 11:53:46,813 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 11:53:47,105 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 11:53:47,105 INFO L314 CfgBuilder]: Removed 100 assume(true) statements. [2024-10-13 11:53:47,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:53:47 BoogieIcfgContainer [2024-10-13 11:53:47,106 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 11:53:47,108 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 11:53:47,108 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 11:53:47,111 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 11:53:47,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:53:39" (1/3) ... [2024-10-13 11:53:47,112 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf11938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:53:47, skipping insertion in model container [2024-10-13 11:53:47,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:53:40" (2/3) ... [2024-10-13 11:53:47,114 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf11938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:53:47, skipping insertion in model container [2024-10-13 11:53:47,114 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:53:47" (3/3) ... [2024-10-13 11:53:47,115 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test5-3.i [2024-10-13 11:53:47,133 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 11:53:47,134 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 915 error locations. [2024-10-13 11:53:47,221 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 11:53:47,228 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;@7f513191, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 11:53:47,229 INFO L334 AbstractCegarLoop]: Starting to check reachability of 915 error locations. [2024-10-13 11:53:47,237 INFO L276 IsEmpty]: Start isEmpty. Operand has 1652 states, 726 states have (on average 2.5303030303030303) internal successors, (1837), 1642 states have internal predecessors, (1837), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 11:53:47,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-13 11:53:47,244 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:53:47,244 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-13 11:53:47,245 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-13 11:53:47,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:53:47,250 INFO L85 PathProgramCache]: Analyzing trace with hash 86499261, now seen corresponding path program 1 times [2024-10-13 11:53:47,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:53:47,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [818401642] [2024-10-13 11:53:47,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:53:47,263 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 11:53:47,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:53:47,265 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) [2024-10-13 11:53:47,266 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 [2024-10-13 11:53:47,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:53:47,449 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-13 11:53:47,454 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:53:47,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:53:47,460 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:53:47,461 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:53:47,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [818401642] [2024-10-13 11:53:47,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [818401642] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:53:47,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:53:47,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 11:53:47,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532085987] [2024-10-13 11:53:47,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:53:47,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 11:53:47,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:53:47,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 11:53:47,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 11:53:47,495 INFO L87 Difference]: Start difference. First operand has 1652 states, 726 states have (on average 2.5303030303030303) internal successors, (1837), 1642 states have internal predecessors, (1837), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2024-10-13 11:53:48,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:53:48,450 INFO L93 Difference]: Finished difference Result 1632 states and 1733 transitions. [2024-10-13 11:53:48,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 11:53:48,454 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2024-10-13 11:53:48,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:53:48,473 INFO L225 Difference]: With dead ends: 1632 [2024-10-13 11:53:48,473 INFO L226 Difference]: Without dead ends: 1631 [2024-10-13 11:53:48,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 11:53:48,477 INFO L432 NwaCegarLoop]: 1561 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-13 11:53:48,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1561 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-13 11:53:48,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2024-10-13 11:53:48,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1631. [2024-10-13 11:53:48,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1631 states, 717 states have (on average 2.382147838214784) internal successors, (1708), 1621 states have internal predecessors, (1708), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 11:53:48,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1631 states to 1631 states and 1732 transitions. [2024-10-13 11:53:48,596 INFO L78 Accepts]: Start accepts. Automaton has 1631 states and 1732 transitions. Word has length 4 [2024-10-13 11:53:48,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:53:48,596 INFO L471 AbstractCegarLoop]: Abstraction has 1631 states and 1732 transitions. [2024-10-13 11:53:48,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2024-10-13 11:53:48,597 INFO L276 IsEmpty]: Start isEmpty. Operand 1631 states and 1732 transitions. [2024-10-13 11:53:48,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-13 11:53:48,597 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:53:48,598 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-13 11:53:48,603 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 [2024-10-13 11:53:48,801 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 [2024-10-13 11:53:48,802 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-13 11:53:48,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:53:48,802 INFO L85 PathProgramCache]: Analyzing trace with hash 86499323, now seen corresponding path program 1 times [2024-10-13 11:53:48,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:53:48,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1798042537] [2024-10-13 11:53:48,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:53:48,803 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 11:53:48,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:53:48,805 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) [2024-10-13 11:53:48,806 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 [2024-10-13 11:53:48,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:53:48,989 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 11:53:48,991 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:53:49,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-13 11:53:49,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:53:49,059 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:53:49,060 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:53:49,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1798042537] [2024-10-13 11:53:49,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1798042537] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:53:49,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:53:49,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 11:53:49,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546123807] [2024-10-13 11:53:49,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:53:49,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 11:53:49,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:53:49,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 11:53:49,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:53:49,065 INFO L87 Difference]: Start difference. First operand 1631 states and 1732 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-10-13 11:53:51,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:53:51,548 INFO L93 Difference]: Finished difference Result 1746 states and 1879 transitions. [2024-10-13 11:53:51,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 11:53:51,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2024-10-13 11:53:51,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:53:51,554 INFO L225 Difference]: With dead ends: 1746 [2024-10-13 11:53:51,555 INFO L226 Difference]: Without dead ends: 1746 [2024-10-13 11:53:51,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:53:51,556 INFO L432 NwaCegarLoop]: 1122 mSDtfsCounter, 1129 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 1165 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 1439 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-13 11:53:51,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1140 Valid, 1439 Invalid, 1264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1165 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-13 11:53:51,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2024-10-13 11:53:51,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 1539. [2024-10-13 11:53:51,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1539 states, 717 states have (on average 2.2538354253835426) internal successors, (1616), 1529 states have internal predecessors, (1616), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 11:53:51,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1539 states to 1539 states and 1640 transitions. [2024-10-13 11:53:51,588 INFO L78 Accepts]: Start accepts. Automaton has 1539 states and 1640 transitions. Word has length 4 [2024-10-13 11:53:51,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:53:51,589 INFO L471 AbstractCegarLoop]: Abstraction has 1539 states and 1640 transitions. [2024-10-13 11:53:51,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-10-13 11:53:51,589 INFO L276 IsEmpty]: Start isEmpty. Operand 1539 states and 1640 transitions. [2024-10-13 11:53:51,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-13 11:53:51,589 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:53:51,590 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-13 11:53:51,594 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 [2024-10-13 11:53:51,790 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 [2024-10-13 11:53:51,791 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-13 11:53:51,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:53:51,791 INFO L85 PathProgramCache]: Analyzing trace with hash 86499324, now seen corresponding path program 1 times [2024-10-13 11:53:51,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:53:51,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [516446488] [2024-10-13 11:53:51,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:53:51,792 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 [2024-10-13 11:53:51,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:53:51,795 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) [2024-10-13 11:53:51,797 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 [2024-10-13 11:53:51,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:53:51,946 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 11:53:51,948 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:53:51,958 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 [2024-10-13 11:53:51,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:53:51,982 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:53:51,983 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:53:51,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [516446488] [2024-10-13 11:53:51,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [516446488] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:53:51,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:53:51,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 11:53:51,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641039926] [2024-10-13 11:53:51,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:53:51,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 11:53:51,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:53:51,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 11:53:51,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:53:51,986 INFO L87 Difference]: Start difference. First operand 1539 states and 1640 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-10-13 11:53:55,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:53:55,062 INFO L93 Difference]: Finished difference Result 2024 states and 2176 transitions. [2024-10-13 11:53:55,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 11:53:55,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2024-10-13 11:53:55,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:53:55,071 INFO L225 Difference]: With dead ends: 2024 [2024-10-13 11:53:55,072 INFO L226 Difference]: Without dead ends: 2024 [2024-10-13 11:53:55,072 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:53:55,073 INFO L432 NwaCegarLoop]: 1428 mSDtfsCounter, 689 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 1258 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 2086 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-10-13 11:53:55,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 2086 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1258 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-10-13 11:53:55,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2024 states. [2024-10-13 11:53:55,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2024 to 1668. [2024-10-13 11:53:55,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1668 states, 856 states have (on average 2.217289719626168) internal successors, (1898), 1658 states have internal predecessors, (1898), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 11:53:55,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1668 states to 1668 states and 1922 transitions. [2024-10-13 11:53:55,117 INFO L78 Accepts]: Start accepts. Automaton has 1668 states and 1922 transitions. Word has length 4 [2024-10-13 11:53:55,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:53:55,118 INFO L471 AbstractCegarLoop]: Abstraction has 1668 states and 1922 transitions. [2024-10-13 11:53:55,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-10-13 11:53:55,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1668 states and 1922 transitions. [2024-10-13 11:53:55,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-13 11:53:55,119 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:53:55,119 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-13 11:53:55,123 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-10-13 11:53:55,322 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 [2024-10-13 11:53:55,323 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr620REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-13 11:53:55,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:53:55,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1611828766, now seen corresponding path program 1 times [2024-10-13 11:53:55,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:53:55,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005108941] [2024-10-13 11:53:55,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:53:55,325 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 11:53:55,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:53:55,326 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) [2024-10-13 11:53:55,327 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 [2024-10-13 11:53:55,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:53:55,468 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 11:53:55,470 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:53:55,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:53:55,485 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:53:55,485 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:53:55,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1005108941] [2024-10-13 11:53:55,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1005108941] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:53:55,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:53:55,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 11:53:55,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216699400] [2024-10-13 11:53:55,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:53:55,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 11:53:55,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:53:55,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 11:53:55,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:53:55,489 INFO L87 Difference]: Start difference. First operand 1668 states and 1922 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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) [2024-10-13 11:53:56,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:53:56,952 INFO L93 Difference]: Finished difference Result 2972 states and 3461 transitions. [2024-10-13 11:53:56,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 11:53:56,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2024-10-13 11:53:56,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:53:56,965 INFO L225 Difference]: With dead ends: 2972 [2024-10-13 11:53:56,965 INFO L226 Difference]: Without dead ends: 2972 [2024-10-13 11:53:56,965 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:53:56,966 INFO L432 NwaCegarLoop]: 1843 mSDtfsCounter, 1222 mSDsluCounter, 1450 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1233 SdHoareTripleChecker+Valid, 3293 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-13 11:53:56,967 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1233 Valid, 3293 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-13 11:53:56,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2972 states. [2024-10-13 11:53:56,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2972 to 1670. [2024-10-13 11:53:57,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1670 states, 858 states have (on average 2.2144522144522143) internal successors, (1900), 1660 states have internal predecessors, (1900), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 11:53:57,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1670 states to 1670 states and 1924 transitions. [2024-10-13 11:53:57,023 INFO L78 Accepts]: Start accepts. Automaton has 1670 states and 1924 transitions. Word has length 5 [2024-10-13 11:53:57,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:53:57,025 INFO L471 AbstractCegarLoop]: Abstraction has 1670 states and 1924 transitions. [2024-10-13 11:53:57,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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) [2024-10-13 11:53:57,026 INFO L276 IsEmpty]: Start isEmpty. Operand 1670 states and 1924 transitions. [2024-10-13 11:53:57,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-13 11:53:57,027 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:53:57,027 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 11:53:57,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-10-13 11:53:57,227 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 [2024-10-13 11:53:57,228 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-13 11:53:57,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:53:57,229 INFO L85 PathProgramCache]: Analyzing trace with hash -445473339, now seen corresponding path program 1 times [2024-10-13 11:53:57,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:53:57,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [839468675] [2024-10-13 11:53:57,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:53:57,229 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 11:53:57,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:53:57,232 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) [2024-10-13 11:53:57,234 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 [2024-10-13 11:53:57,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:53:57,411 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 11:53:57,414 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:53:57,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:53:57,431 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:53:57,431 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:53:57,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [839468675] [2024-10-13 11:53:57,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [839468675] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:53:57,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:53:57,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 11:53:57,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824789790] [2024-10-13 11:53:57,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:53:57,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 11:53:57,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:53:57,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 11:53:57,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:53:57,433 INFO L87 Difference]: Start difference. First operand 1670 states and 1924 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-10-13 11:53:58,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:53:58,341 INFO L93 Difference]: Finished difference Result 1631 states and 1884 transitions. [2024-10-13 11:53:58,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 11:53:58,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2024-10-13 11:53:58,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:53:58,347 INFO L225 Difference]: With dead ends: 1631 [2024-10-13 11:53:58,347 INFO L226 Difference]: Without dead ends: 1631 [2024-10-13 11:53:58,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:53:58,348 INFO L432 NwaCegarLoop]: 1410 mSDtfsCounter, 61 mSDsluCounter, 1368 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 2778 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-13 11:53:58,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 2778 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-13 11:53:58,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2024-10-13 11:53:58,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1631. [2024-10-13 11:53:58,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1631 states, 843 states have (on average 2.206405693950178) internal successors, (1860), 1621 states have internal predecessors, (1860), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 11:53:58,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1631 states to 1631 states and 1884 transitions. [2024-10-13 11:53:58,378 INFO L78 Accepts]: Start accepts. Automaton has 1631 states and 1884 transitions. Word has length 10 [2024-10-13 11:53:58,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:53:58,379 INFO L471 AbstractCegarLoop]: Abstraction has 1631 states and 1884 transitions. [2024-10-13 11:53:58,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-10-13 11:53:58,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1631 states and 1884 transitions. [2024-10-13 11:53:58,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-13 11:53:58,380 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:53:58,380 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 11:53:58,386 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 [2024-10-13 11:53:58,583 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 [2024-10-13 11:53:58,584 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-13 11:53:58,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:53:58,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1396847519, now seen corresponding path program 1 times [2024-10-13 11:53:58,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:53:58,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [31834503] [2024-10-13 11:53:58,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:53:58,587 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 11:53:58,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:53:58,590 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) [2024-10-13 11:53:58,591 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 [2024-10-13 11:53:58,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:53:58,769 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 11:53:58,771 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:53:58,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:53:58,791 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:53:58,791 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:53:58,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [31834503] [2024-10-13 11:53:58,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [31834503] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:53:58,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:53:58,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 11:53:58,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449303046] [2024-10-13 11:53:58,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:53:58,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 11:53:58,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:53:58,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 11:53:58,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:53:58,794 INFO L87 Difference]: Start difference. First operand 1631 states and 1884 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2024-10-13 11:53:59,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:53:59,905 INFO L93 Difference]: Finished difference Result 1616 states and 1862 transitions. [2024-10-13 11:53:59,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 11:53:59,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2024-10-13 11:53:59,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:53:59,911 INFO L225 Difference]: With dead ends: 1616 [2024-10-13 11:53:59,911 INFO L226 Difference]: Without dead ends: 1616 [2024-10-13 11:53:59,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 11:53:59,912 INFO L432 NwaCegarLoop]: 1379 mSDtfsCounter, 45 mSDsluCounter, 2740 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 4119 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-13 11:53:59,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 4119 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-13 11:53:59,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2024-10-13 11:53:59,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1616. [2024-10-13 11:53:59,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1616 states, 842 states have (on average 2.182897862232779) internal successors, (1838), 1606 states have internal predecessors, (1838), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 11:53:59,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1616 states to 1616 states and 1862 transitions. [2024-10-13 11:53:59,940 INFO L78 Accepts]: Start accepts. Automaton has 1616 states and 1862 transitions. Word has length 12 [2024-10-13 11:53:59,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:53:59,941 INFO L471 AbstractCegarLoop]: Abstraction has 1616 states and 1862 transitions. [2024-10-13 11:53:59,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2024-10-13 11:53:59,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1616 states and 1862 transitions. [2024-10-13 11:53:59,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-13 11:53:59,942 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:53:59,943 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] [2024-10-13 11:53:59,948 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 [2024-10-13 11:54:00,143 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 [2024-10-13 11:54:00,144 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-13 11:54:00,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:54:00,145 INFO L85 PathProgramCache]: Analyzing trace with hash 109292173, now seen corresponding path program 1 times [2024-10-13 11:54:00,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:54:00,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1491479604] [2024-10-13 11:54:00,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:54:00,145 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 11:54:00,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:54:00,148 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) [2024-10-13 11:54:00,150 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 [2024-10-13 11:54:00,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:54:00,323 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 11:54:00,326 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:54:00,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-13 11:54:00,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:54:00,404 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:54:00,404 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:54:00,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1491479604] [2024-10-13 11:54:00,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1491479604] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:54:00,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:54:00,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 11:54:00,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075747336] [2024-10-13 11:54:00,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:54:00,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 11:54:00,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:54:00,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 11:54:00,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:54:00,419 INFO L87 Difference]: Start difference. First operand 1616 states and 1862 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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) [2024-10-13 11:54:02,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:54:02,795 INFO L93 Difference]: Finished difference Result 1616 states and 1862 transitions. [2024-10-13 11:54:02,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 11:54:02,796 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 26 [2024-10-13 11:54:02,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:54:02,802 INFO L225 Difference]: With dead ends: 1616 [2024-10-13 11:54:02,803 INFO L226 Difference]: Without dead ends: 1616 [2024-10-13 11:54:02,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 11:54:02,803 INFO L432 NwaCegarLoop]: 874 mSDtfsCounter, 1073 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 1871 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1084 SdHoareTripleChecker+Valid, 1696 SdHoareTripleChecker+Invalid, 1882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-13 11:54:02,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1084 Valid, 1696 Invalid, 1882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1871 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-13 11:54:02,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2024-10-13 11:54:02,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1612. [2024-10-13 11:54:02,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1612 states, 842 states have (on average 2.178147268408551) internal successors, (1834), 1602 states have internal predecessors, (1834), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 11:54:02,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1612 states to 1612 states and 1858 transitions. [2024-10-13 11:54:02,829 INFO L78 Accepts]: Start accepts. Automaton has 1612 states and 1858 transitions. Word has length 26 [2024-10-13 11:54:02,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:54:02,830 INFO L471 AbstractCegarLoop]: Abstraction has 1612 states and 1858 transitions. [2024-10-13 11:54:02,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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) [2024-10-13 11:54:02,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 1858 transitions. [2024-10-13 11:54:02,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-13 11:54:02,831 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:54:02,831 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] [2024-10-13 11:54:02,836 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-10-13 11:54:03,031 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 [2024-10-13 11:54:03,032 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-13 11:54:03,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:54:03,033 INFO L85 PathProgramCache]: Analyzing trace with hash 109292174, now seen corresponding path program 1 times [2024-10-13 11:54:03,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:54:03,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [668090752] [2024-10-13 11:54:03,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:54:03,033 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 11:54:03,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:54:03,035 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) [2024-10-13 11:54:03,036 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 [2024-10-13 11:54:03,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:54:03,200 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 11:54:03,203 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:54:03,210 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 [2024-10-13 11:54:03,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:54:03,419 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:54:03,419 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:54:03,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [668090752] [2024-10-13 11:54:03,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [668090752] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:54:03,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:54:03,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 11:54:03,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368840064] [2024-10-13 11:54:03,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:54:03,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 11:54:03,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:54:03,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 11:54:03,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:54:03,421 INFO L87 Difference]: Start difference. First operand 1612 states and 1858 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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) [2024-10-13 11:54:06,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:54:06,830 INFO L93 Difference]: Finished difference Result 1969 states and 2113 transitions. [2024-10-13 11:54:06,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 11:54:06,831 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 26 [2024-10-13 11:54:06,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:54:06,836 INFO L225 Difference]: With dead ends: 1969 [2024-10-13 11:54:06,836 INFO L226 Difference]: Without dead ends: 1969 [2024-10-13 11:54:06,836 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 11:54:06,836 INFO L432 NwaCegarLoop]: 1178 mSDtfsCounter, 629 mSDsluCounter, 1332 mSDsCounter, 0 mSdLazyCounter, 2038 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 2510 SdHoareTripleChecker+Invalid, 2041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-10-13 11:54:06,837 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [634 Valid, 2510 Invalid, 2041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2038 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-10-13 11:54:06,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2024-10-13 11:54:06,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1608. [2024-10-13 11:54:06,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1608 states, 842 states have (on average 2.173396674584323) internal successors, (1830), 1598 states have internal predecessors, (1830), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 11:54:06,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 1854 transitions. [2024-10-13 11:54:06,860 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 1854 transitions. Word has length 26 [2024-10-13 11:54:06,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:54:06,861 INFO L471 AbstractCegarLoop]: Abstraction has 1608 states and 1854 transitions. [2024-10-13 11:54:06,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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) [2024-10-13 11:54:06,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 1854 transitions. [2024-10-13 11:54:06,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-13 11:54:06,862 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:54:06,862 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] [2024-10-13 11:54:06,870 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 (9)] Ended with exit code 0 [2024-10-13 11:54:07,062 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 [2024-10-13 11:54:07,063 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-13 11:54:07,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:54:07,063 INFO L85 PathProgramCache]: Analyzing trace with hash -898285561, now seen corresponding path program 1 times [2024-10-13 11:54:07,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:54:07,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [260426926] [2024-10-13 11:54:07,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:54:07,064 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 11:54:07,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:54:07,065 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) [2024-10-13 11:54:07,066 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 [2024-10-13 11:54:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:54:07,304 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 11:54:07,306 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:54:07,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:54:07,349 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:54:07,349 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:54:07,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [260426926] [2024-10-13 11:54:07,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [260426926] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:54:07,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:54:07,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 11:54:07,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834711015] [2024-10-13 11:54:07,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:54:07,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 11:54:07,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:54:07,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 11:54:07,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:54:07,352 INFO L87 Difference]: Start difference. First operand 1608 states and 1854 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2024-10-13 11:54:08,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:54:08,583 INFO L93 Difference]: Finished difference Result 1602 states and 1844 transitions. [2024-10-13 11:54:08,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 11:54:08,585 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 42 [2024-10-13 11:54:08,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:54:08,590 INFO L225 Difference]: With dead ends: 1602 [2024-10-13 11:54:08,590 INFO L226 Difference]: Without dead ends: 1602 [2024-10-13 11:54:08,590 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 11:54:08,591 INFO L432 NwaCegarLoop]: 1373 mSDtfsCounter, 15 mSDsluCounter, 2729 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 4102 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-13 11:54:08,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 4102 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-13 11:54:08,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1602 states. [2024-10-13 11:54:08,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1602 to 1602. [2024-10-13 11:54:08,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1602 states, 836 states have (on average 2.1770334928229667) internal successors, (1820), 1592 states have internal predecessors, (1820), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 11:54:08,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1602 states to 1602 states and 1844 transitions. [2024-10-13 11:54:08,620 INFO L78 Accepts]: Start accepts. Automaton has 1602 states and 1844 transitions. Word has length 42 [2024-10-13 11:54:08,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:54:08,620 INFO L471 AbstractCegarLoop]: Abstraction has 1602 states and 1844 transitions. [2024-10-13 11:54:08,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2024-10-13 11:54:08,621 INFO L276 IsEmpty]: Start isEmpty. Operand 1602 states and 1844 transitions. [2024-10-13 11:54:08,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-13 11:54:08,621 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:54:08,621 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] [2024-10-13 11:54:08,628 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 [2024-10-13 11:54:08,822 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 [2024-10-13 11:54:08,823 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-13 11:54:08,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:54:08,827 INFO L85 PathProgramCache]: Analyzing trace with hash -507815065, now seen corresponding path program 1 times [2024-10-13 11:54:08,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:54:08,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [729503822] [2024-10-13 11:54:08,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:54:08,828 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 11:54:08,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:54:08,831 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) [2024-10-13 11:54:08,836 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 [2024-10-13 11:54:09,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:54:09,052 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 11:54:09,054 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:54:09,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:54:09,265 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:54:09,266 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:54:09,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [729503822] [2024-10-13 11:54:09,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [729503822] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:54:09,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:54:09,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 11:54:09,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013361171] [2024-10-13 11:54:09,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:54:09,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 11:54:09,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:54:09,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 11:54:09,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:54:09,267 INFO L87 Difference]: Start difference. First operand 1602 states and 1844 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 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) [2024-10-13 11:54:10,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:54:10,262 INFO L93 Difference]: Finished difference Result 1964 states and 2243 transitions. [2024-10-13 11:54:10,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 11:54:10,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 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 46 [2024-10-13 11:54:10,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:54:10,268 INFO L225 Difference]: With dead ends: 1964 [2024-10-13 11:54:10,268 INFO L226 Difference]: Without dead ends: 1964 [2024-10-13 11:54:10,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:54:10,269 INFO L432 NwaCegarLoop]: 1439 mSDtfsCounter, 334 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 2764 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-13 11:54:10,269 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 2764 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-13 11:54:10,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1964 states. [2024-10-13 11:54:10,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1964 to 1645. [2024-10-13 11:54:10,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1645 states, 879 states have (on average 2.1194539249146755) internal successors, (1863), 1635 states have internal predecessors, (1863), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 11:54:10,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1645 states to 1645 states and 1887 transitions. [2024-10-13 11:54:10,294 INFO L78 Accepts]: Start accepts. Automaton has 1645 states and 1887 transitions. Word has length 46 [2024-10-13 11:54:10,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:54:10,295 INFO L471 AbstractCegarLoop]: Abstraction has 1645 states and 1887 transitions. [2024-10-13 11:54:10,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 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) [2024-10-13 11:54:10,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1645 states and 1887 transitions. [2024-10-13 11:54:10,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-13 11:54:10,300 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:54:10,300 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] [2024-10-13 11:54:10,308 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 (11)] Forceful destruction successful, exit code 0 [2024-10-13 11:54:10,500 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 [2024-10-13 11:54:10,501 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-13 11:54:10,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:54:10,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1551239862, now seen corresponding path program 1 times [2024-10-13 11:54:10,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:54:10,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [531356786] [2024-10-13 11:54:10,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:54:10,502 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 11:54:10,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:54:10,505 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) [2024-10-13 11:54:10,506 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 (12)] Waiting until timeout for monitored process [2024-10-13 11:54:10,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:54:10,804 INFO L255 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 11:54:10,807 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:54:10,814 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 [2024-10-13 11:54:10,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-13 11:54:11,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 11:54:11,252 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 [2024-10-13 11:54:11,271 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-13 11:54:11,271 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 [2024-10-13 11:54:11,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:54:11,295 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:54:11,295 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:54:11,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [531356786] [2024-10-13 11:54:11,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [531356786] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:54:11,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:54:11,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 11:54:11,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627590602] [2024-10-13 11:54:11,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:54:11,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 11:54:11,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:54:11,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 11:54:11,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:54:11,297 INFO L87 Difference]: Start difference. First operand 1645 states and 1887 transitions. Second operand has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 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) [2024-10-13 11:54:13,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:54:13,740 INFO L93 Difference]: Finished difference Result 1561 states and 1803 transitions. [2024-10-13 11:54:13,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 11:54:13,740 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 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 49 [2024-10-13 11:54:13,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:54:13,744 INFO L225 Difference]: With dead ends: 1561 [2024-10-13 11:54:13,744 INFO L226 Difference]: Without dead ends: 1561 [2024-10-13 11:54:13,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:54:13,745 INFO L432 NwaCegarLoop]: 632 mSDtfsCounter, 1007 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 1371 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1018 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 1462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-13 11:54:13,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1018 Valid, 886 Invalid, 1462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1371 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-13 11:54:13,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1561 states. [2024-10-13 11:54:13,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1561 to 1422. [2024-10-13 11:54:13,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1422 states, 740 states have (on average 2.0094594594594595) internal successors, (1487), 1412 states have internal predecessors, (1487), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 11:54:13,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1422 states to 1422 states and 1511 transitions. [2024-10-13 11:54:13,761 INFO L78 Accepts]: Start accepts. Automaton has 1422 states and 1511 transitions. Word has length 49 [2024-10-13 11:54:13,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:54:13,761 INFO L471 AbstractCegarLoop]: Abstraction has 1422 states and 1511 transitions. [2024-10-13 11:54:13,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 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) [2024-10-13 11:54:13,762 INFO L276 IsEmpty]: Start isEmpty. Operand 1422 states and 1511 transitions. [2024-10-13 11:54:13,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-13 11:54:13,762 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:54:13,762 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] [2024-10-13 11:54:13,773 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 [2024-10-13 11:54:13,963 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 [2024-10-13 11:54:13,963 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-13 11:54:13,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:54:13,964 INFO L85 PathProgramCache]: Analyzing trace with hash -961503950, now seen corresponding path program 1 times [2024-10-13 11:54:13,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:54:13,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1952294129] [2024-10-13 11:54:13,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:54:13,965 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 11:54:13,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:54:13,966 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) [2024-10-13 11:54:13,967 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 [2024-10-13 11:54:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:54:14,242 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-13 11:54:14,245 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:54:14,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-13 11:54:14,272 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 [2024-10-13 11:54:14,289 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 [2024-10-13 11:54:14,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:54:14,298 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:54:14,299 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:54:14,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1952294129] [2024-10-13 11:54:14,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1952294129] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:54:14,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:54:14,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 11:54:14,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566941052] [2024-10-13 11:54:14,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:54:14,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 11:54:14,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:54:14,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 11:54:14,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 11:54:14,300 INFO L87 Difference]: Start difference. First operand 1422 states and 1511 transitions. Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 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) [2024-10-13 11:54:17,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:54:17,040 INFO L93 Difference]: Finished difference Result 1421 states and 1510 transitions. [2024-10-13 11:54:17,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 11:54:17,041 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 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 53 [2024-10-13 11:54:17,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:54:17,044 INFO L225 Difference]: With dead ends: 1421 [2024-10-13 11:54:17,044 INFO L226 Difference]: Without dead ends: 1421 [2024-10-13 11:54:17,045 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-13 11:54:17,045 INFO L432 NwaCegarLoop]: 1301 mSDtfsCounter, 2 mSDsluCounter, 2078 mSDsCounter, 0 mSdLazyCounter, 2473 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3379 SdHoareTripleChecker+Invalid, 2474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-13 11:54:17,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3379 Invalid, 2474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2473 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-13 11:54:17,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2024-10-13 11:54:17,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 1421. [2024-10-13 11:54:17,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1421 states, 740 states have (on average 2.0081081081081082) internal successors, (1486), 1411 states have internal predecessors, (1486), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 11:54:17,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1421 states to 1421 states and 1510 transitions. [2024-10-13 11:54:17,061 INFO L78 Accepts]: Start accepts. Automaton has 1421 states and 1510 transitions. Word has length 53 [2024-10-13 11:54:17,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:54:17,062 INFO L471 AbstractCegarLoop]: Abstraction has 1421 states and 1510 transitions. [2024-10-13 11:54:17,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 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) [2024-10-13 11:54:17,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1421 states and 1510 transitions. [2024-10-13 11:54:17,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-13 11:54:17,064 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:54:17,064 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] [2024-10-13 11:54:17,072 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-10-13 11:54:17,264 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 [2024-10-13 11:54:17,265 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-13 11:54:17,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:54:17,265 INFO L85 PathProgramCache]: Analyzing trace with hash -961503949, now seen corresponding path program 1 times [2024-10-13 11:54:17,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:54:17,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1012570550] [2024-10-13 11:54:17,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:54:17,266 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 11:54:17,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:54:17,269 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) [2024-10-13 11:54:17,270 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 [2024-10-13 11:54:17,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:54:17,562 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-13 11:54:17,589 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:54:17,598 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 [2024-10-13 11:54:17,617 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 [2024-10-13 11:54:17,627 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 [2024-10-13 11:54:17,664 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 [2024-10-13 11:54:17,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:54:17,682 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:54:17,682 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:54:17,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1012570550] [2024-10-13 11:54:17,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1012570550] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:54:17,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:54:17,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 11:54:17,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159857213] [2024-10-13 11:54:17,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:54:17,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 11:54:17,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:54:17,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 11:54:17,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 11:54:17,684 INFO L87 Difference]: Start difference. First operand 1421 states and 1510 transitions. Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 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) [2024-10-13 11:54:21,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:54:21,006 INFO L93 Difference]: Finished difference Result 1420 states and 1509 transitions. [2024-10-13 11:54:21,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 11:54:21,006 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 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 53 [2024-10-13 11:54:21,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:54:21,022 INFO L225 Difference]: With dead ends: 1420 [2024-10-13 11:54:21,022 INFO L226 Difference]: Without dead ends: 1420 [2024-10-13 11:54:21,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-13 11:54:21,023 INFO L432 NwaCegarLoop]: 1301 mSDtfsCounter, 1 mSDsluCounter, 2126 mSDsCounter, 0 mSdLazyCounter, 2422 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3427 SdHoareTripleChecker+Invalid, 2423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-10-13 11:54:21,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3427 Invalid, 2423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2422 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-10-13 11:54:21,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1420 states. [2024-10-13 11:54:21,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1420 to 1420. [2024-10-13 11:54:21,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1420 states, 739 states have (on average 2.009472259810555) internal successors, (1485), 1410 states have internal predecessors, (1485), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 11:54:21,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 1509 transitions. [2024-10-13 11:54:21,040 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 1509 transitions. Word has length 53 [2024-10-13 11:54:21,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:54:21,040 INFO L471 AbstractCegarLoop]: Abstraction has 1420 states and 1509 transitions. [2024-10-13 11:54:21,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 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) [2024-10-13 11:54:21,040 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 1509 transitions. [2024-10-13 11:54:21,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-13 11:54:21,042 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:54:21,042 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] [2024-10-13 11:54:21,050 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 [2024-10-13 11:54:21,245 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 [2024-10-13 11:54:21,246 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-13 11:54:21,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:54:21,246 INFO L85 PathProgramCache]: Analyzing trace with hash 2102563286, now seen corresponding path program 1 times [2024-10-13 11:54:21,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:54:21,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [851919133] [2024-10-13 11:54:21,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:54:21,247 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 11:54:21,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:54:21,248 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) [2024-10-13 11:54:21,250 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 [2024-10-13 11:54:21,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:54:21,499 INFO L255 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 11:54:21,502 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:54:21,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:54:21,520 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:54:21,520 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:54:21,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [851919133] [2024-10-13 11:54:21,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [851919133] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:54:21,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:54:21,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 11:54:21,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438262122] [2024-10-13 11:54:21,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:54:21,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 11:54:21,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:54:21,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 11:54:21,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:54:21,522 INFO L87 Difference]: Start difference. First operand 1420 states and 1509 transitions. Second operand has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 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) [2024-10-13 11:54:22,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:54:22,446 INFO L93 Difference]: Finished difference Result 1422 states and 1513 transitions. [2024-10-13 11:54:22,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 11:54:22,447 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 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 59 [2024-10-13 11:54:22,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:54:22,452 INFO L225 Difference]: With dead ends: 1422 [2024-10-13 11:54:22,452 INFO L226 Difference]: Without dead ends: 1422 [2024-10-13 11:54:22,452 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:54:22,453 INFO L432 NwaCegarLoop]: 1300 mSDtfsCounter, 0 mSDsluCounter, 2594 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3894 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-13 11:54:22,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3894 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-13 11:54:22,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1422 states. [2024-10-13 11:54:22,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1422 to 1422. [2024-10-13 11:54:22,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1422 states, 740 states have (on average 2.0094594594594595) internal successors, (1487), 1412 states have internal predecessors, (1487), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2024-10-13 11:54:22,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1422 states to 1422 states and 1513 transitions. [2024-10-13 11:54:22,474 INFO L78 Accepts]: Start accepts. Automaton has 1422 states and 1513 transitions. Word has length 59 [2024-10-13 11:54:22,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:54:22,474 INFO L471 AbstractCegarLoop]: Abstraction has 1422 states and 1513 transitions. [2024-10-13 11:54:22,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 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) [2024-10-13 11:54:22,478 INFO L276 IsEmpty]: Start isEmpty. Operand 1422 states and 1513 transitions. [2024-10-13 11:54:22,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-13 11:54:22,478 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:54:22,478 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] [2024-10-13 11:54:22,494 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 (15)] Ended with exit code 0 [2024-10-13 11:54:22,678 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 [2024-10-13 11:54:22,679 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-13 11:54:22,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:54:22,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1436189954, now seen corresponding path program 1 times [2024-10-13 11:54:22,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:54:22,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [681413700] [2024-10-13 11:54:22,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:54:22,680 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 11:54:22,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:54:22,681 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) [2024-10-13 11:54:22,682 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 [2024-10-13 11:54:22,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:54:22,973 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 11:54:22,975 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:54:23,001 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:54:23,002 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 11:54:23,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:54:23,069 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:54:23,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [681413700] [2024-10-13 11:54:23,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [681413700] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 11:54:23,069 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 11:54:23,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-10-13 11:54:23,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040474530] [2024-10-13 11:54:23,069 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 11:54:23,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 11:54:23,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:54:23,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 11:54:23,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-13 11:54:23,075 INFO L87 Difference]: Start difference. First operand 1422 states and 1513 transitions. Second operand has 8 states, 6 states have (on average 10.166666666666666) internal successors, (61), 8 states have internal predecessors, (61), 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) [2024-10-13 11:54:24,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:54:24,310 INFO L93 Difference]: Finished difference Result 1431 states and 1528 transitions. [2024-10-13 11:54:24,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 11:54:24,310 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 10.166666666666666) internal successors, (61), 8 states have internal predecessors, (61), 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 60 [2024-10-13 11:54:24,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:54:24,315 INFO L225 Difference]: With dead ends: 1431 [2024-10-13 11:54:24,315 INFO L226 Difference]: Without dead ends: 1431 [2024-10-13 11:54:24,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-10-13 11:54:24,316 INFO L432 NwaCegarLoop]: 1298 mSDtfsCounter, 5 mSDsluCounter, 3884 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 5182 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-13 11:54:24,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 5182 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-13 11:54:24,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1431 states. [2024-10-13 11:54:24,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1431 to 1430. [2024-10-13 11:54:24,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1430 states, 747 states have (on average 2.0080321285140563) internal successors, (1500), 1419 states have internal predecessors, (1500), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2024-10-13 11:54:24,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1430 states to 1430 states and 1526 transitions. [2024-10-13 11:54:24,333 INFO L78 Accepts]: Start accepts. Automaton has 1430 states and 1526 transitions. Word has length 60 [2024-10-13 11:54:24,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:54:24,334 INFO L471 AbstractCegarLoop]: Abstraction has 1430 states and 1526 transitions. [2024-10-13 11:54:24,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 10.166666666666666) internal successors, (61), 8 states have internal predecessors, (61), 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) [2024-10-13 11:54:24,334 INFO L276 IsEmpty]: Start isEmpty. Operand 1430 states and 1526 transitions. [2024-10-13 11:54:24,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-13 11:54:24,335 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:54:24,335 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] [2024-10-13 11:54:24,344 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 [2024-10-13 11:54:24,538 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 [2024-10-13 11:54:24,539 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-13 11:54:24,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:54:24,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1229716694, now seen corresponding path program 2 times [2024-10-13 11:54:24,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:54:24,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1327292479] [2024-10-13 11:54:24,540 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 11:54:24,540 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 11:54:24,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:54:24,541 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) [2024-10-13 11:54:24,542 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 [2024-10-13 11:54:24,931 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 11:54:24,931 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 11:54:24,941 INFO L255 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-13 11:54:24,944 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:54:24,994 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:54:24,994 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 11:54:25,140 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:54:25,140 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:54:25,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1327292479] [2024-10-13 11:54:25,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1327292479] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 11:54:25,140 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 11:54:25,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-10-13 11:54:25,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119997802] [2024-10-13 11:54:25,141 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 11:54:25,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-13 11:54:25,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:54:25,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-13 11:54:25,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-10-13 11:54:25,142 INFO L87 Difference]: Start difference. First operand 1430 states and 1526 transitions. Second operand has 14 states, 12 states have (on average 5.583333333333333) internal successors, (67), 14 states have internal predecessors, (67), 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) [2024-10-13 11:54:27,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:54:27,009 INFO L93 Difference]: Finished difference Result 1442 states and 1546 transitions. [2024-10-13 11:54:27,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-13 11:54:27,010 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.583333333333333) internal successors, (67), 14 states have internal predecessors, (67), 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 63 [2024-10-13 11:54:27,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:54:27,014 INFO L225 Difference]: With dead ends: 1442 [2024-10-13 11:54:27,014 INFO L226 Difference]: Without dead ends: 1440 [2024-10-13 11:54:27,014 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-10-13 11:54:27,015 INFO L432 NwaCegarLoop]: 1298 mSDtfsCounter, 7 mSDsluCounter, 6480 mSDsCounter, 0 mSdLazyCounter, 1144 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 7778 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-13 11:54:27,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 7778 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1144 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-13 11:54:27,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1440 states. [2024-10-13 11:54:27,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1440 to 1439. [2024-10-13 11:54:27,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1439 states, 756 states have (on average 2.0) internal successors, (1512), 1428 states have internal predecessors, (1512), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2024-10-13 11:54:27,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1439 states to 1439 states and 1538 transitions. [2024-10-13 11:54:27,031 INFO L78 Accepts]: Start accepts. Automaton has 1439 states and 1538 transitions. Word has length 63 [2024-10-13 11:54:27,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:54:27,032 INFO L471 AbstractCegarLoop]: Abstraction has 1439 states and 1538 transitions. [2024-10-13 11:54:27,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.583333333333333) internal successors, (67), 14 states have internal predecessors, (67), 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) [2024-10-13 11:54:27,032 INFO L276 IsEmpty]: Start isEmpty. Operand 1439 states and 1538 transitions. [2024-10-13 11:54:27,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-13 11:54:27,033 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:54:27,033 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] [2024-10-13 11:54:27,044 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 (17)] Ended with exit code 0 [2024-10-13 11:54:27,233 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 [2024-10-13 11:54:27,234 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-13 11:54:27,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:54:27,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1583821482, now seen corresponding path program 3 times [2024-10-13 11:54:27,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:54:27,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [260782077] [2024-10-13 11:54:27,235 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-13 11:54:27,235 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 11:54:27,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:54:27,236 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) [2024-10-13 11:54:27,237 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 [2024-10-13 11:54:27,813 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-10-13 11:54:27,813 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 11:54:27,827 INFO L255 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-13 11:54:27,829 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:54:27,934 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:54:27,934 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 11:54:28,431 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:54:28,431 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:54:28,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [260782077] [2024-10-13 11:54:28,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [260782077] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 11:54:28,432 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 11:54:28,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-10-13 11:54:28,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396620520] [2024-10-13 11:54:28,432 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 11:54:28,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-13 11:54:28,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:54:28,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-13 11:54:28,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-10-13 11:54:28,433 INFO L87 Difference]: Start difference. First operand 1439 states and 1538 transitions. Second operand has 26 states, 24 states have (on average 3.2916666666666665) internal successors, (79), 26 states have internal predecessors, (79), 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) [2024-10-13 11:54:33,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:54:33,511 INFO L93 Difference]: Finished difference Result 1460 states and 1574 transitions. [2024-10-13 11:54:33,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-10-13 11:54:33,512 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 3.2916666666666665) internal successors, (79), 26 states have internal predecessors, (79), 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 69 [2024-10-13 11:54:33,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:54:33,515 INFO L225 Difference]: With dead ends: 1460 [2024-10-13 11:54:33,515 INFO L226 Difference]: Without dead ends: 1457 [2024-10-13 11:54:33,516 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-10-13 11:54:33,516 INFO L432 NwaCegarLoop]: 1298 mSDtfsCounter, 13 mSDsluCounter, 18132 mSDsCounter, 0 mSdLazyCounter, 2996 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 19430 SdHoareTripleChecker+Invalid, 3007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-10-13 11:54:33,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 19430 Invalid, 3007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2996 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-10-13 11:54:33,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2024-10-13 11:54:33,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1457. [2024-10-13 11:54:33,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1457 states, 774 states have (on average 1.983204134366925) internal successors, (1535), 1446 states have internal predecessors, (1535), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2024-10-13 11:54:33,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 1561 transitions. [2024-10-13 11:54:33,534 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 1561 transitions. Word has length 69 [2024-10-13 11:54:33,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:54:33,534 INFO L471 AbstractCegarLoop]: Abstraction has 1457 states and 1561 transitions. [2024-10-13 11:54:33,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 3.2916666666666665) internal successors, (79), 26 states have internal predecessors, (79), 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) [2024-10-13 11:54:33,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 1561 transitions. [2024-10-13 11:54:33,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-13 11:54:33,535 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:54:33,535 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] [2024-10-13 11:54:33,548 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 [2024-10-13 11:54:33,736 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 [2024-10-13 11:54:33,736 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-13 11:54:33,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:54:33,737 INFO L85 PathProgramCache]: Analyzing trace with hash 289361494, now seen corresponding path program 4 times [2024-10-13 11:54:33,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:54:33,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2060929757] [2024-10-13 11:54:33,738 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-13 11:54:33,738 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 11:54:33,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:54:33,739 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) [2024-10-13 11:54:33,740 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 [2024-10-13 11:54:34,169 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-13 11:54:34,169 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 11:54:34,183 INFO L255 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-13 11:54:34,187 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:54:34,513 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:54:34,513 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 11:54:35,691 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:54:35,691 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:54:35,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2060929757] [2024-10-13 11:54:35,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2060929757] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 11:54:35,692 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 11:54:35,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2024-10-13 11:54:35,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067649830] [2024-10-13 11:54:35,693 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 11:54:35,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-10-13 11:54:35,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:54:35,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-10-13 11:54:35,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2024-10-13 11:54:35,696 INFO L87 Difference]: Start difference. First operand 1457 states and 1561 transitions. Second operand has 50 states, 48 states have (on average 2.1458333333333335) internal successors, (103), 50 states have internal predecessors, (103), 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) [2024-10-13 11:54:46,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:54:46,048 INFO L93 Difference]: Finished difference Result 1494 states and 1631 transitions. [2024-10-13 11:54:46,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-10-13 11:54:46,049 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 48 states have (on average 2.1458333333333335) internal successors, (103), 50 states have internal predecessors, (103), 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 [2024-10-13 11:54:46,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:54:46,052 INFO L225 Difference]: With dead ends: 1494 [2024-10-13 11:54:46,052 INFO L226 Difference]: Without dead ends: 1492 [2024-10-13 11:54:46,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=2713, Invalid=5843, Unknown=0, NotChecked=0, Total=8556 [2024-10-13 11:54:46,055 INFO L432 NwaCegarLoop]: 1298 mSDtfsCounter, 26 mSDsluCounter, 31102 mSDsCounter, 0 mSdLazyCounter, 5937 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 32400 SdHoareTripleChecker+Invalid, 6020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 5937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2024-10-13 11:54:46,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 32400 Invalid, 6020 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [83 Valid, 5937 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2024-10-13 11:54:46,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1492 states. [2024-10-13 11:54:46,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1492 to 1491. [2024-10-13 11:54:46,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1491 states, 808 states have (on average 1.9566831683168318) internal successors, (1581), 1480 states have internal predecessors, (1581), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2024-10-13 11:54:46,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 1607 transitions. [2024-10-13 11:54:46,073 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 1607 transitions. Word has length 81 [2024-10-13 11:54:46,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:54:46,073 INFO L471 AbstractCegarLoop]: Abstraction has 1491 states and 1607 transitions. [2024-10-13 11:54:46,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 48 states have (on average 2.1458333333333335) internal successors, (103), 50 states have internal predecessors, (103), 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) [2024-10-13 11:54:46,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 1607 transitions. [2024-10-13 11:54:46,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-10-13 11:54:46,074 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:54:46,074 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] [2024-10-13 11:54:46,087 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 (19)] Ended with exit code 0 [2024-10-13 11:54:46,274 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 [2024-10-13 11:54:46,275 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-13 11:54:46,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:54:46,275 INFO L85 PathProgramCache]: Analyzing trace with hash 830712534, now seen corresponding path program 5 times [2024-10-13 11:54:46,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:54:46,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [580476918] [2024-10-13 11:54:46,276 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-13 11:54:46,276 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 11:54:46,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:54:46,277 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) [2024-10-13 11:54:46,278 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 [2024-10-13 11:54:47,399 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2024-10-13 11:54:47,399 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 11:54:47,418 INFO L255 TraceCheckSpWp]: Trace formula consists of 770 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-10-13 11:54:47,425 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:54:47,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-13 11:54:47,524 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-10-13 11:54:47,525 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 [2024-10-13 11:54:47,554 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 [2024-10-13 11:54:47,627 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 [2024-10-13 11:54:48,620 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-10-13 11:54:48,620 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 [2024-10-13 11:54:48,656 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 [2024-10-13 11:54:48,687 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-10-13 11:54:48,687 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 11:54:49,012 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:54:49,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [580476918] [2024-10-13 11:54:49,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [580476918] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 11:54:49,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1844228198] [2024-10-13 11:54:49,013 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-13 11:54:49,013 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-10-13 11:54:49,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-10-13 11:54:49,015 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-10-13 11:54:49,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process