./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_test1-1.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_test1-1.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 8a34048511216dfe9a14f70dd929fd2de5a6eaf4560cb9e9e466dd0467a1d6d7 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 11:52:03,150 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 11:52:03,221 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-13 11:52:03,227 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 11:52:03,230 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 11:52:03,275 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 11:52:03,276 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 11:52:03,276 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 11:52:03,277 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 11:52:03,278 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 11:52:03,279 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 11:52:03,279 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 11:52:03,280 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 11:52:03,280 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 11:52:03,283 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 11:52:03,284 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 11:52:03,284 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 11:52:03,284 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 11:52:03,285 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 11:52:03,285 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 11:52:03,285 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-13 11:52:03,286 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-13 11:52:03,286 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-13 11:52:03,286 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 11:52:03,286 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 11:52:03,287 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 11:52:03,287 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 11:52:03,287 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 11:52:03,287 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 11:52:03,287 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 11:52:03,288 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 11:52:03,288 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 11:52:03,288 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 11:52:03,288 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 11:52:03,288 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 11:52:03,289 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 11:52:03,289 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 11:52:03,291 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 11:52:03,292 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 11:52:03,292 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 11:52:03,292 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 11:52:03,292 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 11:52:03,293 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a34048511216dfe9a14f70dd929fd2de5a6eaf4560cb9e9e466dd0467a1d6d7 [2024-10-13 11:52:03,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 11:52:03,585 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 11:52:03,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 11:52:03,590 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 11:52:03,591 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 11:52:03,592 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i [2024-10-13 11:52:05,133 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 11:52:05,429 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 11:52:05,429 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i [2024-10-13 11:52:05,460 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1143e0c1a/2a629c7b71a244b5afc53399284d3dbc/FLAG4a67798a5 [2024-10-13 11:52:05,481 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1143e0c1a/2a629c7b71a244b5afc53399284d3dbc [2024-10-13 11:52:05,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 11:52:05,486 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 11:52:05,488 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 11:52:05,490 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 11:52:05,496 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 11:52:05,496 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:52:05" (1/1) ... [2024-10-13 11:52:05,497 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@748d3b8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:52:05, skipping insertion in model container [2024-10-13 11:52:05,498 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:52:05" (1/1) ... [2024-10-13 11:52:05,567 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 11:52:06,130 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 11:52:06,150 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 11:52:06,151 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6f6dd8b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:52:06, skipping insertion in model container [2024-10-13 11:52:06,151 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 11:52:06,151 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-13 11:52:06,154 INFO L158 Benchmark]: Toolchain (without parser) took 666.31ms. Allocated memory is still 159.4MB. Free memory was 102.8MB in the beginning and 84.0MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-13 11:52:06,154 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 159.4MB. Free memory is still 124.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 11:52:06,155 INFO L158 Benchmark]: CACSL2BoogieTranslator took 663.68ms. Allocated memory is still 159.4MB. Free memory was 102.6MB in the beginning and 84.4MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-13 11:52:06,156 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 159.4MB. Free memory is still 124.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 663.68ms. Allocated memory is still 159.4MB. Free memory was 102.6MB in the beginning and 84.4MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 751]: 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_test1-1.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 8a34048511216dfe9a14f70dd929fd2de5a6eaf4560cb9e9e466dd0467a1d6d7 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 11:52:08,314 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 11:52:08,398 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-13 11:52:08,403 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 11:52:08,405 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 11:52:08,436 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 11:52:08,439 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 11:52:08,440 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 11:52:08,440 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 11:52:08,441 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 11:52:08,442 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 11:52:08,442 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 11:52:08,443 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 11:52:08,443 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 11:52:08,445 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 11:52:08,446 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 11:52:08,446 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 11:52:08,446 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 11:52:08,446 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 11:52:08,447 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 11:52:08,447 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-13 11:52:08,451 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-13 11:52:08,452 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-13 11:52:08,452 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 11:52:08,452 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 11:52:08,452 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-13 11:52:08,452 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 11:52:08,453 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-13 11:52:08,453 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 11:52:08,453 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 11:52:08,453 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 11:52:08,453 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 11:52:08,454 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 11:52:08,454 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 11:52:08,454 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 11:52:08,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 11:52:08,456 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 11:52:08,456 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 11:52:08,456 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-13 11:52:08,457 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-13 11:52:08,457 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 11:52:08,458 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 11:52:08,458 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 11:52:08,458 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 11:52:08,459 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-13 11:52:08,459 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a34048511216dfe9a14f70dd929fd2de5a6eaf4560cb9e9e466dd0467a1d6d7 [2024-10-13 11:52:08,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 11:52:08,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 11:52:08,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 11:52:08,849 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 11:52:08,850 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 11:52:08,853 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i [2024-10-13 11:52:10,548 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 11:52:10,878 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 11:52:10,878 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i [2024-10-13 11:52:10,899 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fd3d5c4e/c01280681eb04129b9543fdbfc9655c9/FLAG6f7c165ac [2024-10-13 11:52:10,914 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fd3d5c4e/c01280681eb04129b9543fdbfc9655c9 [2024-10-13 11:52:10,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 11:52:10,917 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 11:52:10,918 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 11:52:10,918 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 11:52:10,924 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 11:52:10,925 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:52:10" (1/1) ... [2024-10-13 11:52:10,926 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1551cd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:52:10, skipping insertion in model container [2024-10-13 11:52:10,926 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:52:10" (1/1) ... [2024-10-13 11:52:10,981 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 11:52:11,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 11:52:11,546 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-13 11:52:11,557 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 11:52:11,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 11:52:11,665 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 11:52:11,754 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 11:52:11,824 INFO L204 MainTranslator]: Completed translation [2024-10-13 11:52:11,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:52:11 WrapperNode [2024-10-13 11:52:11,825 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 11:52:11,826 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 11:52:11,826 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 11:52:11,826 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 11:52:11,833 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:52:11" (1/1) ... [2024-10-13 11:52:11,871 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:52:11" (1/1) ... [2024-10-13 11:52:11,927 INFO L138 Inliner]: procedures = 179, calls = 180, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 640 [2024-10-13 11:52:11,928 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 11:52:11,929 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 11:52:11,929 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 11:52:11,929 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 11:52:11,944 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:52:11" (1/1) ... [2024-10-13 11:52:11,945 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:52:11" (1/1) ... [2024-10-13 11:52:11,955 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:52:11" (1/1) ... [2024-10-13 11:52:12,006 INFO L175 MemorySlicer]: Split 158 memory accesses to 2 slices as follows [2, 156]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 42 writes are split as follows [0, 42]. [2024-10-13 11:52:12,007 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:52:11" (1/1) ... [2024-10-13 11:52:12,007 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:52:11" (1/1) ... [2024-10-13 11:52:12,042 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:52:11" (1/1) ... [2024-10-13 11:52:12,047 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:52:11" (1/1) ... [2024-10-13 11:52:12,051 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:52:11" (1/1) ... [2024-10-13 11:52:12,059 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:52:11" (1/1) ... [2024-10-13 11:52:12,069 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 11:52:12,070 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 11:52:12,070 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 11:52:12,070 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 11:52:12,072 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:52:11" (1/1) ... [2024-10-13 11:52:12,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 11:52:12,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 11:52:12,108 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 11:52:12,114 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 11:52:12,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-10-13 11:52:12,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-10-13 11:52:12,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-13 11:52:12,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-13 11:52:12,159 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-13 11:52:12,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-13 11:52:12,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-10-13 11:52:12,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-10-13 11:52:12,161 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-10-13 11:52:12,161 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-10-13 11:52:12,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 11:52:12,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 11:52:12,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-13 11:52:12,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-13 11:52:12,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-13 11:52:12,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-13 11:52:12,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 11:52:12,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-13 11:52:12,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-13 11:52:12,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-13 11:52:12,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-13 11:52:12,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 11:52:12,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 11:52:12,392 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 11:52:12,395 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 11:52:12,399 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-13 11:52:12,457 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-13 11:52:15,255 INFO L? ?]: Removed 686 outVars from TransFormulas that were not future-live. [2024-10-13 11:52:15,256 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 11:52:15,384 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 11:52:15,384 INFO L314 CfgBuilder]: Removed 31 assume(true) statements. [2024-10-13 11:52:15,388 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:52:15 BoogieIcfgContainer [2024-10-13 11:52:15,388 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 11:52:15,390 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 11:52:15,392 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 11:52:15,396 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 11:52:15,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:52:10" (1/3) ... [2024-10-13 11:52:15,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0c3a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:52:15, skipping insertion in model container [2024-10-13 11:52:15,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:52:11" (2/3) ... [2024-10-13 11:52:15,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0c3a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:52:15, skipping insertion in model container [2024-10-13 11:52:15,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:52:15" (3/3) ... [2024-10-13 11:52:15,401 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test1-1.i [2024-10-13 11:52:15,420 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 11:52:15,420 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 320 error locations. [2024-10-13 11:52:15,486 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 11:52:15,493 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;@ef5f1e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 11:52:15,494 INFO L334 AbstractCegarLoop]: Starting to check reachability of 320 error locations. [2024-10-13 11:52:15,500 INFO L276 IsEmpty]: Start isEmpty. Operand has 593 states, 260 states have (on average 2.5) internal successors, (650), 587 states have internal predecessors, (650), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 11:52:15,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-13 11:52:15,507 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:52:15,507 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-13 11:52:15,508 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-10-13 11:52:15,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:52:15,514 INFO L85 PathProgramCache]: Analyzing trace with hash 33095977, now seen corresponding path program 1 times [2024-10-13 11:52:15,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:52:15,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1251627750] [2024-10-13 11:52:15,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:52:15,532 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 11:52:15,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:52:15,536 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 11:52:15,538 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 11:52:15,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:52:15,674 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 11:52:15,679 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:52:15,716 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 11:52:15,734 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 11:52:15,735 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:52:15,735 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:52:15,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1251627750] [2024-10-13 11:52:15,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1251627750] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:52:15,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:52:15,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 11:52:15,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423895570] [2024-10-13 11:52:15,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:52:15,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 11:52:15,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:52:15,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 11:52:15,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:52:15,793 INFO L87 Difference]: Start difference. First operand has 593 states, 260 states have (on average 2.5) internal successors, (650), 587 states have internal predecessors, (650), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) 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 11:52:17,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:52:17,237 INFO L93 Difference]: Finished difference Result 536 states and 583 transitions. [2024-10-13 11:52:17,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 11:52:17,241 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 11:52:17,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:52:17,257 INFO L225 Difference]: With dead ends: 536 [2024-10-13 11:52:17,257 INFO L226 Difference]: Without dead ends: 535 [2024-10-13 11:52:17,261 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 11:52:17,267 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 476 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-13 11:52:17,269 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 277 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-13 11:52:17,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-10-13 11:52:17,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 533. [2024-10-13 11:52:17,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 255 states have (on average 2.168627450980392) internal successors, (553), 527 states have internal predecessors, (553), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 11:52:17,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 579 transitions. [2024-10-13 11:52:17,333 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 579 transitions. Word has length 4 [2024-10-13 11:52:17,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:52:17,333 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 579 transitions. [2024-10-13 11:52:17,333 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 11:52:17,334 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 579 transitions. [2024-10-13 11:52:17,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-13 11:52:17,334 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:52:17,334 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-13 11:52:17,339 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 (2)] Forceful destruction successful, exit code 0 [2024-10-13 11:52:17,537 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 11:52:17,537 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-10-13 11:52:17,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:52:17,538 INFO L85 PathProgramCache]: Analyzing trace with hash 33095978, now seen corresponding path program 1 times [2024-10-13 11:52:17,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:52:17,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1570888763] [2024-10-13 11:52:17,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:52:17,539 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 11:52:17,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:52:17,542 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 11:52:17,544 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 11:52:17,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:52:17,652 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 11:52:17,654 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:52:17,668 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 11:52:17,687 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 11:52:17,690 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:52:17,690 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:52:17,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1570888763] [2024-10-13 11:52:17,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1570888763] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:52:17,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:52:17,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 11:52:17,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602319535] [2024-10-13 11:52:17,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:52:17,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 11:52:17,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:52:17,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 11:52:17,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:52:17,695 INFO L87 Difference]: Start difference. First operand 533 states and 579 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 11:52:18,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:52:18,769 INFO L93 Difference]: Finished difference Result 597 states and 647 transitions. [2024-10-13 11:52:18,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 11:52:18,772 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 11:52:18,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:52:18,777 INFO L225 Difference]: With dead ends: 597 [2024-10-13 11:52:18,777 INFO L226 Difference]: Without dead ends: 597 [2024-10-13 11:52:18,778 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 11:52:18,779 INFO L432 NwaCegarLoop]: 418 mSDtfsCounter, 234 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-13 11:52:18,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 594 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-13 11:52:18,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2024-10-13 11:52:18,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 550. [2024-10-13 11:52:18,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 282 states have (on average 2.152482269503546) internal successors, (607), 544 states have internal predecessors, (607), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 11:52:18,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 633 transitions. [2024-10-13 11:52:18,802 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 633 transitions. Word has length 4 [2024-10-13 11:52:18,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:52:18,802 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 633 transitions. [2024-10-13 11:52:18,802 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 11:52:18,803 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 633 transitions. [2024-10-13 11:52:18,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-13 11:52:18,803 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:52:18,803 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-13 11:52:18,808 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 11:52:19,006 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 11:52:19,007 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr312REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-10-13 11:52:19,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:52:19,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1026781799, now seen corresponding path program 1 times [2024-10-13 11:52:19,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:52:19,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1666133334] [2024-10-13 11:52:19,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:52:19,009 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 11:52:19,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:52:19,011 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 11:52:19,012 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 11:52:19,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:52:19,078 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 11:52:19,079 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:52:19,090 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 11:52:19,090 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:52:19,090 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:52:19,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1666133334] [2024-10-13 11:52:19,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1666133334] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:52:19,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:52:19,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 11:52:19,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235633200] [2024-10-13 11:52:19,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:52:19,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 11:52:19,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:52:19,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 11:52:19,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:52:19,093 INFO L87 Difference]: Start difference. First operand 550 states and 633 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 11:52:19,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:52:19,692 INFO L93 Difference]: Finished difference Result 1056 states and 1202 transitions. [2024-10-13 11:52:19,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 11:52:19,696 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 11:52:19,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:52:19,701 INFO L225 Difference]: With dead ends: 1056 [2024-10-13 11:52:19,701 INFO L226 Difference]: Without dead ends: 1056 [2024-10-13 11:52:19,702 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 11:52:19,704 INFO L432 NwaCegarLoop]: 677 mSDtfsCounter, 498 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-13 11:52:19,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 1178 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-13 11:52:19,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2024-10-13 11:52:19,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 551. [2024-10-13 11:52:19,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 283 states have (on average 2.148409893992933) internal successors, (608), 545 states have internal predecessors, (608), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 11:52:19,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 634 transitions. [2024-10-13 11:52:19,740 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 634 transitions. Word has length 5 [2024-10-13 11:52:19,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:52:19,740 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 634 transitions. [2024-10-13 11:52:19,741 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 11:52:19,741 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 634 transitions. [2024-10-13 11:52:19,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-13 11:52:19,741 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:52:19,741 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 11:52:19,747 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 (4)] Forceful destruction successful, exit code 0 [2024-10-13 11:52:19,941 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 11:52:19,942 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-10-13 11:52:19,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:52:19,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1355304371, now seen corresponding path program 1 times [2024-10-13 11:52:19,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:52:19,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1303045317] [2024-10-13 11:52:19,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:52:19,948 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 11:52:19,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:52:19,949 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 11:52:19,952 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 11:52:20,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:52:20,061 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 11:52:20,063 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:52:20,074 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 11:52:20,074 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:52:20,075 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:52:20,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1303045317] [2024-10-13 11:52:20,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1303045317] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:52:20,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:52:20,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 11:52:20,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721505505] [2024-10-13 11:52:20,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:52:20,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 11:52:20,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:52:20,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 11:52:20,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:52:20,077 INFO L87 Difference]: Start difference. First operand 551 states and 634 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 11:52:20,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:52:20,516 INFO L93 Difference]: Finished difference Result 512 states and 594 transitions. [2024-10-13 11:52:20,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 11:52:20,518 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 11:52:20,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:52:20,521 INFO L225 Difference]: With dead ends: 512 [2024-10-13 11:52:20,521 INFO L226 Difference]: Without dead ends: 512 [2024-10-13 11:52:20,521 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 11:52:20,522 INFO L432 NwaCegarLoop]: 457 mSDtfsCounter, 61 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 11:52:20,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 872 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 11:52:20,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2024-10-13 11:52:20,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 512. [2024-10-13 11:52:20,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 268 states have (on average 2.1194029850746268) internal successors, (568), 506 states have internal predecessors, (568), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 11:52:20,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 594 transitions. [2024-10-13 11:52:20,536 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 594 transitions. Word has length 10 [2024-10-13 11:52:20,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:52:20,536 INFO L471 AbstractCegarLoop]: Abstraction has 512 states and 594 transitions. [2024-10-13 11:52:20,537 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 11:52:20,537 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 594 transitions. [2024-10-13 11:52:20,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-13 11:52:20,537 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:52:20,538 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 11:52:20,544 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-10-13 11:52:20,738 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 11:52:20,739 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-10-13 11:52:20,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:52:20,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1072405965, now seen corresponding path program 1 times [2024-10-13 11:52:20,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:52:20,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2073764517] [2024-10-13 11:52:20,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:52:20,740 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 11:52:20,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:52:20,744 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 11:52:20,746 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 11:52:20,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:52:20,863 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 11:52:20,865 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:52:20,886 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 11:52:20,887 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:52:20,887 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:52:20,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2073764517] [2024-10-13 11:52:20,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2073764517] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:52:20,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:52:20,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 11:52:20,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412785875] [2024-10-13 11:52:20,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:52:20,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 11:52:20,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:52:20,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 11:52:20,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:52:20,890 INFO L87 Difference]: Start difference. First operand 512 states and 594 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 11:52:21,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:52:21,370 INFO L93 Difference]: Finished difference Result 497 states and 572 transitions. [2024-10-13 11:52:21,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 11:52:21,372 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 11:52:21,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:52:21,374 INFO L225 Difference]: With dead ends: 497 [2024-10-13 11:52:21,374 INFO L226 Difference]: Without dead ends: 497 [2024-10-13 11:52:21,374 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 11:52:21,375 INFO L432 NwaCegarLoop]: 426 mSDtfsCounter, 45 mSDsluCounter, 834 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 11:52:21,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 1260 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 11:52:21,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2024-10-13 11:52:21,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 497. [2024-10-13 11:52:21,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 267 states have (on average 2.044943820224719) internal successors, (546), 491 states have internal predecessors, (546), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 11:52:21,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 572 transitions. [2024-10-13 11:52:21,387 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 572 transitions. Word has length 12 [2024-10-13 11:52:21,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:52:21,387 INFO L471 AbstractCegarLoop]: Abstraction has 497 states and 572 transitions. [2024-10-13 11:52:21,388 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 11:52:21,388 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 572 transitions. [2024-10-13 11:52:21,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-13 11:52:21,388 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:52:21,389 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 11:52:21,395 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 (6)] Forceful destruction successful, exit code 0 [2024-10-13 11:52:21,589 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 11:52:21,590 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-10-13 11:52:21,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:52:21,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1380225925, now seen corresponding path program 1 times [2024-10-13 11:52:21,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:52:21,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2125425967] [2024-10-13 11:52:21,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:52:21,591 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 11:52:21,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:52:21,592 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 11:52:21,593 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 11:52:21,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:52:21,703 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 11:52:21,705 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:52:21,711 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-13 11:52:21,807 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 11:52:21,807 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:52:21,808 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:52:21,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2125425967] [2024-10-13 11:52:21,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2125425967] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:52:21,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:52:21,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 11:52:21,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813231720] [2024-10-13 11:52:21,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:52:21,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 11:52:21,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:52:21,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 11:52:21,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:52:21,809 INFO L87 Difference]: Start difference. First operand 497 states and 572 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 11:52:23,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:52:23,082 INFO L93 Difference]: Finished difference Result 497 states and 572 transitions. [2024-10-13 11:52:23,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 11:52:23,082 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 11:52:23,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:52:23,085 INFO L225 Difference]: With dead ends: 497 [2024-10-13 11:52:23,085 INFO L226 Difference]: Without dead ends: 497 [2024-10-13 11:52:23,085 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 11:52:23,086 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 420 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-13 11:52:23,086 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 412 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-13 11:52:23,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2024-10-13 11:52:23,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 493. [2024-10-13 11:52:23,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 267 states have (on average 2.0299625468164795) internal successors, (542), 487 states have internal predecessors, (542), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 11:52:23,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 568 transitions. [2024-10-13 11:52:23,098 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 568 transitions. Word has length 26 [2024-10-13 11:52:23,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:52:23,098 INFO L471 AbstractCegarLoop]: Abstraction has 493 states and 568 transitions. [2024-10-13 11:52:23,099 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 11:52:23,099 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 568 transitions. [2024-10-13 11:52:23,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-13 11:52:23,099 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:52:23,099 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 11:52:23,105 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 11:52:23,300 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 11:52:23,300 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-10-13 11:52:23,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:52:23,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1380225924, now seen corresponding path program 1 times [2024-10-13 11:52:23,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:52:23,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [73220371] [2024-10-13 11:52:23,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:52:23,302 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 11:52:23,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:52:23,303 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 11:52:23,304 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 11:52:23,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:52:23,424 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 11:52:23,427 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:52:23,440 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 11:52:23,651 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 11:52:23,651 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:52:23,652 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:52:23,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [73220371] [2024-10-13 11:52:23,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [73220371] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:52:23,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:52:23,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 11:52:23,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690398843] [2024-10-13 11:52:23,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:52:23,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 11:52:23,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:52:23,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 11:52:23,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:52:23,654 INFO L87 Difference]: Start difference. First operand 493 states and 568 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 11:52:24,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:52:24,958 INFO L93 Difference]: Finished difference Result 540 states and 582 transitions. [2024-10-13 11:52:24,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 11:52:24,960 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 11:52:24,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:52:24,962 INFO L225 Difference]: With dead ends: 540 [2024-10-13 11:52:24,962 INFO L226 Difference]: Without dead ends: 540 [2024-10-13 11:52:24,962 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 11:52:24,963 INFO L432 NwaCegarLoop]: 382 mSDtfsCounter, 174 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-13 11:52:24,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 760 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-13 11:52:24,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-10-13 11:52:24,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 489. [2024-10-13 11:52:24,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 267 states have (on average 2.0149812734082397) internal successors, (538), 483 states have internal predecessors, (538), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 11:52:24,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 564 transitions. [2024-10-13 11:52:24,982 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 564 transitions. Word has length 26 [2024-10-13 11:52:24,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:52:24,982 INFO L471 AbstractCegarLoop]: Abstraction has 489 states and 564 transitions. [2024-10-13 11:52:24,982 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 11:52:24,983 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 564 transitions. [2024-10-13 11:52:24,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-13 11:52:24,984 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:52:24,984 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 11:52:24,991 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 11:52:25,187 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 11:52:25,187 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-10-13 11:52:25,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:52:25,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1691675659, now seen corresponding path program 1 times [2024-10-13 11:52:25,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:52:25,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1552617819] [2024-10-13 11:52:25,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:52:25,189 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 11:52:25,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:52:25,190 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 11:52:25,191 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 11:52:25,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:52:25,343 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 11:52:25,345 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:52:25,400 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 11:52:25,401 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:52:25,402 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:52:25,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1552617819] [2024-10-13 11:52:25,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1552617819] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:52:25,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:52:25,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 11:52:25,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794567418] [2024-10-13 11:52:25,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:52:25,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 11:52:25,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:52:25,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 11:52:25,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:52:25,404 INFO L87 Difference]: Start difference. First operand 489 states and 564 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 11:52:25,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:52:25,863 INFO L93 Difference]: Finished difference Result 483 states and 554 transitions. [2024-10-13 11:52:25,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 11:52:25,865 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 11:52:25,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:52:25,867 INFO L225 Difference]: With dead ends: 483 [2024-10-13 11:52:25,867 INFO L226 Difference]: Without dead ends: 483 [2024-10-13 11:52:25,867 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 11:52:25,868 INFO L432 NwaCegarLoop]: 420 mSDtfsCounter, 15 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1243 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 11:52:25,868 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 1243 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 11:52:25,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-10-13 11:52:25,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2024-10-13 11:52:25,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 261 states have (on average 2.0229885057471266) internal successors, (528), 477 states have internal predecessors, (528), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 11:52:25,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 554 transitions. [2024-10-13 11:52:25,879 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 554 transitions. Word has length 42 [2024-10-13 11:52:25,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:52:25,879 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 554 transitions. [2024-10-13 11:52:25,879 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 11:52:25,879 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 554 transitions. [2024-10-13 11:52:25,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-13 11:52:25,880 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:52:25,880 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 11:52:25,887 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 11:52:26,081 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 11:52:26,082 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-10-13 11:52:26,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:52:26,082 INFO L85 PathProgramCache]: Analyzing trace with hash 489053462, now seen corresponding path program 1 times [2024-10-13 11:52:26,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:52:26,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1157861895] [2024-10-13 11:52:26,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:52:26,083 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 11:52:26,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:52:26,084 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 11:52:26,085 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 11:52:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:52:26,266 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 11:52:26,269 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:52:26,499 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 11:52:26,500 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:52:26,500 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:52:26,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1157861895] [2024-10-13 11:52:26,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1157861895] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:52:26,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:52:26,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 11:52:26,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709694447] [2024-10-13 11:52:26,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:52:26,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 11:52:26,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:52:26,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 11:52:26,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:52:26,503 INFO L87 Difference]: Start difference. First operand 483 states and 554 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 11:52:27,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:52:27,024 INFO L93 Difference]: Finished difference Result 526 states and 597 transitions. [2024-10-13 11:52:27,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 11:52:27,026 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 11:52:27,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:52:27,028 INFO L225 Difference]: With dead ends: 526 [2024-10-13 11:52:27,028 INFO L226 Difference]: Without dead ends: 526 [2024-10-13 11:52:27,028 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 11:52:27,029 INFO L432 NwaCegarLoop]: 435 mSDtfsCounter, 0 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 11:52:27,033 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 843 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 11:52:27,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2024-10-13 11:52:27,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2024-10-13 11:52:27,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 304 states have (on average 1.8782894736842106) internal successors, (571), 520 states have internal predecessors, (571), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 11:52:27,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 597 transitions. [2024-10-13 11:52:27,048 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 597 transitions. Word has length 46 [2024-10-13 11:52:27,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:52:27,049 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 597 transitions. [2024-10-13 11:52:27,049 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 11:52:27,049 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 597 transitions. [2024-10-13 11:52:27,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-13 11:52:27,053 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:52:27,053 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 11:52:27,061 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 11:52:27,257 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 11:52:27,257 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-10-13 11:52:27,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:52:27,258 INFO L85 PathProgramCache]: Analyzing trace with hash 755145577, now seen corresponding path program 1 times [2024-10-13 11:52:27,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:52:27,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [644744314] [2024-10-13 11:52:27,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:52:27,258 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 11:52:27,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:52:27,259 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 11:52:27,261 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 11:52:27,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:52:27,524 INFO L255 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-13 11:52:27,527 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:52:27,539 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 11:52:27,548 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 11:52:28,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 11:52:28,015 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 11:52:28,037 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-13 11:52:28,037 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 11:52:28,055 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 11:52:28,055 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:52:28,055 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:52:28,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [644744314] [2024-10-13 11:52:28,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [644744314] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:52:28,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:52:28,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 11:52:28,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930239138] [2024-10-13 11:52:28,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:52:28,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 11:52:28,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:52:28,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 11:52:28,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:52:28,058 INFO L87 Difference]: Start difference. First operand 526 states and 597 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 11:52:28,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:52:28,983 INFO L93 Difference]: Finished difference Result 488 states and 559 transitions. [2024-10-13 11:52:28,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 11:52:28,985 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 11:52:28,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:52:28,987 INFO L225 Difference]: With dead ends: 488 [2024-10-13 11:52:28,987 INFO L226 Difference]: Without dead ends: 488 [2024-10-13 11:52:28,988 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 11:52:28,988 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 331 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-13 11:52:28,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 243 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-13 11:52:28,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2024-10-13 11:52:28,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 461. [2024-10-13 11:52:28,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 277 states have (on average 1.6931407942238268) internal successors, (469), 455 states have internal predecessors, (469), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 11:52:28,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 495 transitions. [2024-10-13 11:52:28,998 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 495 transitions. Word has length 49 [2024-10-13 11:52:28,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:52:28,998 INFO L471 AbstractCegarLoop]: Abstraction has 461 states and 495 transitions. [2024-10-13 11:52:28,999 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 11:52:28,999 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 495 transitions. [2024-10-13 11:52:28,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-13 11:52:29,000 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:52:29,000 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 11:52:29,011 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 11:52:29,200 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 11:52:29,201 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-10-13 11:52:29,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:52:29,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1764703016, now seen corresponding path program 1 times [2024-10-13 11:52:29,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:52:29,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [632883635] [2024-10-13 11:52:29,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:52:29,204 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 11:52:29,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:52:29,207 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 11:52:29,208 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 11:52:29,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:52:29,429 INFO L255 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-13 11:52:29,433 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:52:29,449 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 11:52:29,468 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 11:52:29,483 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 11:52:29,490 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 11:52:29,491 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:52:29,491 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:52:29,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [632883635] [2024-10-13 11:52:29,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [632883635] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:52:29,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:52:29,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 11:52:29,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848928124] [2024-10-13 11:52:29,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:52:29,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 11:52:29,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:52:29,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 11:52:29,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 11:52:29,492 INFO L87 Difference]: Start difference. First operand 461 states and 495 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 11:52:30,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:52:30,715 INFO L93 Difference]: Finished difference Result 460 states and 494 transitions. [2024-10-13 11:52:30,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 11:52:30,717 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 11:52:30,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:52:30,719 INFO L225 Difference]: With dead ends: 460 [2024-10-13 11:52:30,719 INFO L226 Difference]: Without dead ends: 460 [2024-10-13 11:52:30,719 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 11:52:30,720 INFO L432 NwaCegarLoop]: 394 mSDtfsCounter, 2 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1051 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-13 11:52:30,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1051 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-13 11:52:30,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2024-10-13 11:52:30,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 460. [2024-10-13 11:52:30,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 277 states have (on average 1.6895306859205776) internal successors, (468), 454 states have internal predecessors, (468), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 11:52:30,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 494 transitions. [2024-10-13 11:52:30,729 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 494 transitions. Word has length 53 [2024-10-13 11:52:30,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:52:30,729 INFO L471 AbstractCegarLoop]: Abstraction has 460 states and 494 transitions. [2024-10-13 11:52:30,730 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 11:52:30,730 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 494 transitions. [2024-10-13 11:52:30,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-13 11:52:30,730 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:52:30,731 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 11:52:30,738 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-10-13 11:52:30,931 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 11:52:30,931 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-10-13 11:52:30,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:52:30,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1764703015, now seen corresponding path program 1 times [2024-10-13 11:52:30,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:52:30,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1682670941] [2024-10-13 11:52:30,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:52:30,933 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 11:52:30,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:52:30,936 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 11:52:30,938 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 11:52:31,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:52:31,138 INFO L255 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-13 11:52:31,140 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:52:31,152 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 11:52:31,172 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 11:52:31,180 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 11:52:31,225 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 11:52:31,245 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 11:52:31,245 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:52:31,245 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:52:31,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1682670941] [2024-10-13 11:52:31,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1682670941] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:52:31,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:52:31,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 11:52:31,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515455075] [2024-10-13 11:52:31,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:52:31,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 11:52:31,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:52:31,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 11:52:31,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 11:52:31,247 INFO L87 Difference]: Start difference. First operand 460 states and 494 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 11:52:32,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:52:32,518 INFO L93 Difference]: Finished difference Result 459 states and 493 transitions. [2024-10-13 11:52:32,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 11:52:32,520 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 11:52:32,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:52:32,522 INFO L225 Difference]: With dead ends: 459 [2024-10-13 11:52:32,522 INFO L226 Difference]: Without dead ends: 459 [2024-10-13 11:52:32,522 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 11:52:32,523 INFO L432 NwaCegarLoop]: 394 mSDtfsCounter, 1 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-13 11:52:32,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1058 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 731 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-13 11:52:32,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2024-10-13 11:52:32,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 459. [2024-10-13 11:52:32,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 276 states have (on average 1.6920289855072463) internal successors, (467), 453 states have internal predecessors, (467), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 11:52:32,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 493 transitions. [2024-10-13 11:52:32,531 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 493 transitions. Word has length 53 [2024-10-13 11:52:32,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:52:32,532 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 493 transitions. [2024-10-13 11:52:32,532 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 11:52:32,532 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 493 transitions. [2024-10-13 11:52:32,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-13 11:52:32,533 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:52:32,533 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 11:52:32,542 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 11:52:32,733 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 11:52:32,734 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-10-13 11:52:32,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:52:32,734 INFO L85 PathProgramCache]: Analyzing trace with hash -783569796, now seen corresponding path program 1 times [2024-10-13 11:52:32,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:52:32,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1371282873] [2024-10-13 11:52:32,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:52:32,735 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 11:52:32,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:52:32,736 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 11:52:32,737 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 11:52:32,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:52:32,987 INFO L255 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 11:52:32,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:52:33,019 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 11:52:33,019 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:52:33,019 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:52:33,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1371282873] [2024-10-13 11:52:33,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1371282873] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:52:33,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:52:33,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 11:52:33,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658217933] [2024-10-13 11:52:33,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:52:33,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 11:52:33,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:52:33,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 11:52:33,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:52:33,022 INFO L87 Difference]: Start difference. First operand 459 states and 493 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 11:52:33,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:52:33,551 INFO L93 Difference]: Finished difference Result 461 states and 496 transitions. [2024-10-13 11:52:33,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 11:52:33,554 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 11:52:33,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:52:33,556 INFO L225 Difference]: With dead ends: 461 [2024-10-13 11:52:33,556 INFO L226 Difference]: Without dead ends: 461 [2024-10-13 11:52:33,557 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 11:52:33,557 INFO L432 NwaCegarLoop]: 394 mSDtfsCounter, 0 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 11:52:33,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1179 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 11:52:33,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-10-13 11:52:33,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 461. [2024-10-13 11:52:33,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 277 states have (on average 1.6931407942238268) internal successors, (469), 455 states have internal predecessors, (469), 13 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-13 11:52:33,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 496 transitions. [2024-10-13 11:52:33,574 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 496 transitions. Word has length 59 [2024-10-13 11:52:33,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:52:33,575 INFO L471 AbstractCegarLoop]: Abstraction has 461 states and 496 transitions. [2024-10-13 11:52:33,575 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 11:52:33,575 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 496 transitions. [2024-10-13 11:52:33,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-13 11:52:33,575 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:52:33,576 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 11:52:33,582 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 (14)] Forceful destruction successful, exit code 0 [2024-10-13 11:52:33,776 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 11:52:33,776 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-10-13 11:52:33,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:52:33,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1928290017, now seen corresponding path program 1 times [2024-10-13 11:52:33,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:52:33,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [352967038] [2024-10-13 11:52:33,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:52:33,778 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 11:52:33,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:52:33,779 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 11:52:33,781 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 11:52:33,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:52:33,983 INFO L255 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 11:52:33,985 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:52:34,009 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 11:52:34,009 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 11:52:34,091 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 11:52:34,095 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:52:34,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [352967038] [2024-10-13 11:52:34,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [352967038] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 11:52:34,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 11:52:34,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-10-13 11:52:34,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110036373] [2024-10-13 11:52:34,096 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 11:52:34,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 11:52:34,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:52:34,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 11:52:34,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-13 11:52:34,098 INFO L87 Difference]: Start difference. First operand 461 states and 496 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 11:52:34,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:52:34,845 INFO L93 Difference]: Finished difference Result 470 states and 510 transitions. [2024-10-13 11:52:34,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 11:52:34,847 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 11:52:34,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:52:34,848 INFO L225 Difference]: With dead ends: 470 [2024-10-13 11:52:34,849 INFO L226 Difference]: Without dead ends: 470 [2024-10-13 11:52:34,849 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 11:52:34,849 INFO L432 NwaCegarLoop]: 393 mSDtfsCounter, 5 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1568 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-13 11:52:34,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1568 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-13 11:52:34,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2024-10-13 11:52:34,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 469. [2024-10-13 11:52:34,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 284 states have (on average 1.6971830985915493) internal successors, (482), 462 states have internal predecessors, (482), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-13 11:52:34,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 509 transitions. [2024-10-13 11:52:34,858 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 509 transitions. Word has length 60 [2024-10-13 11:52:34,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:52:34,859 INFO L471 AbstractCegarLoop]: Abstraction has 469 states and 509 transitions. [2024-10-13 11:52:34,859 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 11:52:34,859 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 509 transitions. [2024-10-13 11:52:34,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-13 11:52:34,860 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:52:34,860 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 11:52:34,870 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2024-10-13 11:52:35,060 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 11:52:35,061 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-10-13 11:52:35,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:52:35,061 INFO L85 PathProgramCache]: Analyzing trace with hash -170418756, now seen corresponding path program 2 times [2024-10-13 11:52:35,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:52:35,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1416780485] [2024-10-13 11:52:35,062 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 11:52:35,062 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 11:52:35,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:52:35,063 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 11:52:35,064 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 11:52:35,444 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 11:52:35,444 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 11:52:35,455 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-13 11:52:35,457 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:52:35,505 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 11:52:35,505 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 11:52:35,660 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 11:52:35,660 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:52:35,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1416780485] [2024-10-13 11:52:35,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1416780485] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 11:52:35,660 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 11:52:35,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-10-13 11:52:35,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235252352] [2024-10-13 11:52:35,661 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 11:52:35,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-13 11:52:35,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:52:35,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-13 11:52:35,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-10-13 11:52:35,662 INFO L87 Difference]: Start difference. First operand 469 states and 509 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 11:52:36,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:52:36,871 INFO L93 Difference]: Finished difference Result 481 states and 528 transitions. [2024-10-13 11:52:36,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-13 11:52:36,873 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 11:52:36,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:52:36,875 INFO L225 Difference]: With dead ends: 481 [2024-10-13 11:52:36,875 INFO L226 Difference]: Without dead ends: 479 [2024-10-13 11:52:36,875 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-10-13 11:52:36,876 INFO L432 NwaCegarLoop]: 393 mSDtfsCounter, 8 mSDsluCounter, 2351 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2744 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-13 11:52:36,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2744 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-13 11:52:36,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2024-10-13 11:52:36,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 478. [2024-10-13 11:52:36,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 293 states have (on average 1.6860068259385665) internal successors, (494), 471 states have internal predecessors, (494), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-13 11:52:36,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 521 transitions. [2024-10-13 11:52:36,886 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 521 transitions. Word has length 63 [2024-10-13 11:52:36,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:52:36,886 INFO L471 AbstractCegarLoop]: Abstraction has 478 states and 521 transitions. [2024-10-13 11:52:36,887 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 11:52:36,887 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 521 transitions. [2024-10-13 11:52:36,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-13 11:52:36,887 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:52:36,887 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 11:52:36,898 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 11:52:37,088 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 11:52:37,088 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-10-13 11:52:37,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:52:37,089 INFO L85 PathProgramCache]: Analyzing trace with hash 2126027676, now seen corresponding path program 3 times [2024-10-13 11:52:37,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:52:37,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1792057317] [2024-10-13 11:52:37,089 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-13 11:52:37,089 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 11:52:37,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:52:37,091 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 11:52:37,092 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 11:52:37,647 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-10-13 11:52:37,647 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 11:52:37,659 INFO L255 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-13 11:52:37,661 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:52:37,804 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 11:52:37,804 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 11:52:38,250 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 11:52:38,251 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:52:38,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1792057317] [2024-10-13 11:52:38,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1792057317] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 11:52:38,251 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 11:52:38,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-10-13 11:52:38,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578259085] [2024-10-13 11:52:38,252 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 11:52:38,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-13 11:52:38,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:52:38,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-13 11:52:38,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-10-13 11:52:38,254 INFO L87 Difference]: Start difference. First operand 478 states and 521 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 11:52:40,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:52:40,873 INFO L93 Difference]: Finished difference Result 499 states and 557 transitions. [2024-10-13 11:52:40,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-10-13 11:52:40,874 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 11:52:40,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:52:40,876 INFO L225 Difference]: With dead ends: 499 [2024-10-13 11:52:40,876 INFO L226 Difference]: Without dead ends: 496 [2024-10-13 11:52:40,877 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 11:52:40,878 INFO L432 NwaCegarLoop]: 393 mSDtfsCounter, 14 mSDsluCounter, 4310 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 4703 SdHoareTripleChecker+Invalid, 1190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-13 11:52:40,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 4703 Invalid, 1190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1169 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-13 11:52:40,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2024-10-13 11:52:40,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 496. [2024-10-13 11:52:40,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 311 states have (on average 1.662379421221865) internal successors, (517), 489 states have internal predecessors, (517), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-13 11:52:40,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 544 transitions. [2024-10-13 11:52:40,888 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 544 transitions. Word has length 69 [2024-10-13 11:52:40,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:52:40,889 INFO L471 AbstractCegarLoop]: Abstraction has 496 states and 544 transitions. [2024-10-13 11:52:40,889 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 11:52:40,889 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 544 transitions. [2024-10-13 11:52:40,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-13 11:52:40,890 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:52:40,890 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 11:52:40,902 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 11:52:41,094 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 11:52:41,095 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-10-13 11:52:41,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:52:41,095 INFO L85 PathProgramCache]: Analyzing trace with hash 445570908, now seen corresponding path program 4 times [2024-10-13 11:52:41,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:52:41,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [587960619] [2024-10-13 11:52:41,096 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-13 11:52:41,096 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 11:52:41,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:52:41,097 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 11:52:41,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-10-13 11:52:41,517 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-13 11:52:41,517 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 11:52:41,531 INFO L255 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-13 11:52:41,534 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:52:41,880 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 11:52:41,880 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 11:52:43,068 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 11:52:43,069 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:52:43,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [587960619] [2024-10-13 11:52:43,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [587960619] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 11:52:43,069 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 11:52:43,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2024-10-13 11:52:43,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33992766] [2024-10-13 11:52:43,070 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 11:52:43,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-10-13 11:52:43,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:52:43,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-10-13 11:52:43,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2024-10-13 11:52:43,073 INFO L87 Difference]: Start difference. First operand 496 states and 544 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 11:52:50,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:52:50,128 INFO L93 Difference]: Finished difference Result 533 states and 613 transitions. [2024-10-13 11:52:50,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-10-13 11:52:50,130 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 11:52:50,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:52:50,132 INFO L225 Difference]: With dead ends: 533 [2024-10-13 11:52:50,132 INFO L226 Difference]: Without dead ends: 531 [2024-10-13 11:52:50,136 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=2713, Invalid=5843, Unknown=0, NotChecked=0, Total=8556 [2024-10-13 11:52:50,137 INFO L432 NwaCegarLoop]: 393 mSDtfsCounter, 26 mSDsluCounter, 9407 mSDsCounter, 0 mSdLazyCounter, 3181 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 9800 SdHoareTripleChecker+Invalid, 3243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 3181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-10-13 11:52:50,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 9800 Invalid, 3243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 3181 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-10-13 11:52:50,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-10-13 11:52:50,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 530. [2024-10-13 11:52:50,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 345 states have (on average 1.6318840579710145) internal successors, (563), 523 states have internal predecessors, (563), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-13 11:52:50,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 590 transitions. [2024-10-13 11:52:50,148 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 590 transitions. Word has length 81 [2024-10-13 11:52:50,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:52:50,149 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 590 transitions. [2024-10-13 11:52:50,149 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 11:52:50,149 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 590 transitions. [2024-10-13 11:52:50,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-10-13 11:52:50,150 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:52:50,150 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 11:52:50,164 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 (18)] Ended with exit code 0 [2024-10-13 11:52:50,351 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 11:52:50,351 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 317 more)] === [2024-10-13 11:52:50,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:52:50,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1525066300, now seen corresponding path program 5 times [2024-10-13 11:52:50,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:52:50,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1252973424] [2024-10-13 11:52:50,352 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-13 11:52:50,352 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 11:52:50,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:52:50,354 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 11:52:50,355 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 11:52:51,485 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2024-10-13 11:52:51,485 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 11:52:51,506 INFO L255 TraceCheckSpWp]: Trace formula consists of 760 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-10-13 11:52:51,513 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:52:51,536 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-10-13 11:52:51,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 22 [2024-10-13 11:52:51,962 INFO L349 Elim1Store]: treesize reduction 54, result has 29.9 percent of original size [2024-10-13 11:52:51,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 28 treesize of output 45 [2024-10-13 11:52:52,028 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 11:52:52,163 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 42 treesize of output 24 [2024-10-13 11:52:54,888 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-10-13 11:52:54,889 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 62 treesize of output 59 [2024-10-13 11:52:54,993 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 51 treesize of output 27 [2024-10-13 11:52:55,064 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 11:52:55,065 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 11:52:55,373 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1648 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_1648) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (_ bv1 1)))) is different from false [2024-10-13 11:52:55,375 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:52:55,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1252973424] [2024-10-13 11:52:55,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1252973424] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 11:52:55,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [93605273] [2024-10-13 11:52:55,375 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-13 11:52:55,375 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-10-13 11:52:55,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-10-13 11:52:55,378 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-10-13 11:52:55,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process