./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test1-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 112ef0f8366461020cac5f2ac7dec2d7e41f31b24e653cd7734885d2bb23b087 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 20:54:52,333 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 20:54:52,413 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-22 20:54:52,419 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 20:54:52,421 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 20:54:52,453 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 20:54:52,453 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 20:54:52,454 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 20:54:52,454 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 20:54:52,458 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 20:54:52,458 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 20:54:52,458 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 20:54:52,459 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 20:54:52,460 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 20:54:52,461 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 20:54:52,461 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 20:54:52,461 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 20:54:52,461 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 20:54:52,462 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 20:54:52,462 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 20:54:52,462 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-22 20:54:52,463 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-22 20:54:52,463 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-22 20:54:52,463 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 20:54:52,464 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-22 20:54:52,464 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 20:54:52,464 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 20:54:52,465 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 20:54:52,465 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 20:54:52,465 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 20:54:52,466 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 20:54:52,466 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 20:54:52,467 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 20:54:52,467 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 20:54:52,467 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 20:54:52,468 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 20:54:52,468 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 20:54:52,468 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 20:54:52,468 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 20:54:52,469 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 20:54:52,469 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 20:54:52,469 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 20:54:52,470 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 112ef0f8366461020cac5f2ac7dec2d7e41f31b24e653cd7734885d2bb23b087 [2024-11-22 20:54:52,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 20:54:52,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 20:54:52,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 20:54:52,765 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 20:54:52,765 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 20:54:52,766 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test1-2.i [2024-11-22 20:54:54,160 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 20:54:54,471 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 20:54:54,472 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test1-2.i [2024-11-22 20:54:54,493 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06f01b769/0ac8958a72714767aa86cd921b1aa477/FLAGb95db4452 [2024-11-22 20:54:54,732 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06f01b769/0ac8958a72714767aa86cd921b1aa477 [2024-11-22 20:54:54,734 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 20:54:54,735 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 20:54:54,736 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 20:54:54,737 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 20:54:54,744 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 20:54:54,745 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:54:54" (1/1) ... [2024-11-22 20:54:54,745 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@217ed706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:54:54, skipping insertion in model container [2024-11-22 20:54:54,745 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:54:54" (1/1) ... [2024-11-22 20:54:54,793 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 20:54:55,162 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:54:55,186 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:54:55,192 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:54:55,199 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:54:55,212 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:54:55,231 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:54:55,232 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:54:55,238 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:54:55,239 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:54:55,240 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:54:55,241 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:54:55,251 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:54:55,257 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 20:54:55,267 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-11-22 20:54:55,268 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@67bb7cca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:54:55, skipping insertion in model container [2024-11-22 20:54:55,268 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 20:54:55,268 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-22 20:54:55,274 INFO L158 Benchmark]: Toolchain (without parser) took 534.12ms. Allocated memory is still 153.1MB. Free memory was 104.4MB in the beginning and 83.1MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-22 20:54:55,275 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 153.1MB. Free memory was 114.3MB in the beginning and 114.2MB in the end (delta: 169.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 20:54:55,278 INFO L158 Benchmark]: CACSL2BoogieTranslator took 531.63ms. Allocated memory is still 153.1MB. Free memory was 104.4MB in the beginning and 83.5MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-22 20:54:55,280 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 153.1MB. Free memory was 114.3MB in the beginning and 114.2MB in the end (delta: 169.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 531.63ms. Allocated memory is still 153.1MB. Free memory was 104.4MB in the beginning and 83.5MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 753]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test1-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 112ef0f8366461020cac5f2ac7dec2d7e41f31b24e653cd7734885d2bb23b087 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 20:54:57,228 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 20:54:57,314 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-22 20:54:57,320 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 20:54:57,320 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 20:54:57,354 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 20:54:57,354 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 20:54:57,355 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 20:54:57,355 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 20:54:57,356 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 20:54:57,356 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 20:54:57,357 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 20:54:57,357 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 20:54:57,358 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 20:54:57,358 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 20:54:57,358 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 20:54:57,359 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 20:54:57,359 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 20:54:57,359 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 20:54:57,360 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 20:54:57,360 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-22 20:54:57,361 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-22 20:54:57,361 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-22 20:54:57,361 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 20:54:57,363 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-22 20:54:57,364 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-22 20:54:57,364 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 20:54:57,364 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-22 20:54:57,365 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 20:54:57,365 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 20:54:57,365 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 20:54:57,365 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 20:54:57,366 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 20:54:57,366 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 20:54:57,366 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 20:54:57,367 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 20:54:57,367 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 20:54:57,367 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 20:54:57,368 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-22 20:54:57,368 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-22 20:54:57,369 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 20:54:57,369 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 20:54:57,370 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 20:54:57,370 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 20:54:57,370 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 112ef0f8366461020cac5f2ac7dec2d7e41f31b24e653cd7734885d2bb23b087 [2024-11-22 20:54:57,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 20:54:57,705 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 20:54:57,708 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 20:54:57,709 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 20:54:57,709 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 20:54:57,710 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test1-2.i [2024-11-22 20:54:59,181 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 20:54:59,497 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 20:54:59,498 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test1-2.i [2024-11-22 20:54:59,520 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47c4d4559/b9fcbedfb4bc4a228e63d46861b5129e/FLAG2b2a8ce9b [2024-11-22 20:54:59,747 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47c4d4559/b9fcbedfb4bc4a228e63d46861b5129e [2024-11-22 20:54:59,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 20:54:59,750 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 20:54:59,751 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 20:54:59,751 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 20:54:59,756 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 20:54:59,757 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:54:59" (1/1) ... [2024-11-22 20:54:59,757 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@165f1c45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:54:59, skipping insertion in model container [2024-11-22 20:54:59,758 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:54:59" (1/1) ... [2024-11-22 20:54:59,803 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 20:55:00,210 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:55:00,247 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:55:00,254 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:55:00,260 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:55:00,283 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:55:00,303 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:55:00,304 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:55:00,308 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:55:00,311 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:55:00,312 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:55:00,315 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:55:00,319 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:55:00,328 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 20:55:00,338 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-22 20:55:00,346 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 20:55:00,368 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:55:00,380 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:55:00,382 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:55:00,384 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:55:00,388 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:55:00,399 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:55:00,400 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:55:00,405 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:55:00,405 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:55:00,406 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:55:00,407 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:55:00,413 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:55:00,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 20:55:00,421 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 20:55:00,519 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 20:55:00,567 INFO L204 MainTranslator]: Completed translation [2024-11-22 20:55:00,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:55:00 WrapperNode [2024-11-22 20:55:00,568 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 20:55:00,569 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 20:55:00,569 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 20:55:00,570 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 20:55:00,576 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:55:00" (1/1) ... [2024-11-22 20:55:00,608 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:55:00" (1/1) ... [2024-11-22 20:55:00,665 INFO L138 Inliner]: procedures = 179, calls = 221, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 762 [2024-11-22 20:55:00,665 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 20:55:00,666 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 20:55:00,666 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 20:55:00,666 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 20:55:00,678 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:55:00" (1/1) ... [2024-11-22 20:55:00,678 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:55:00" (1/1) ... [2024-11-22 20:55:00,686 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:55:00" (1/1) ... [2024-11-22 20:55:00,773 INFO L175 MemorySlicer]: Split 206 memory accesses to 2 slices as follows [2, 204]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 50 writes are split as follows [0, 50]. [2024-11-22 20:55:00,774 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:55:00" (1/1) ... [2024-11-22 20:55:00,774 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:55:00" (1/1) ... [2024-11-22 20:55:00,814 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:55:00" (1/1) ... [2024-11-22 20:55:00,828 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:55:00" (1/1) ... [2024-11-22 20:55:00,832 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:55:00" (1/1) ... [2024-11-22 20:55:00,840 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:55:00" (1/1) ... [2024-11-22 20:55:00,847 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 20:55:00,847 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 20:55:00,848 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 20:55:00,848 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 20:55:00,849 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:55:00" (1/1) ... [2024-11-22 20:55:00,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 20:55:00,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 20:55:00,877 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 20:55:00,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 20:55:00,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-22 20:55:00,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-22 20:55:00,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-22 20:55:00,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-22 20:55:00,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-22 20:55:00,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-22 20:55:00,915 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-22 20:55:00,915 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-22 20:55:00,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-22 20:55:00,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 20:55:00,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-22 20:55:00,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-22 20:55:00,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-22 20:55:00,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-22 20:55:00,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 20:55:00,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-22 20:55:00,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-22 20:55:00,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-22 20:55:00,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-22 20:55:00,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 20:55:00,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 20:55:01,091 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 20:55:01,093 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 20:55:01,097 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-22 20:55:01,147 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-22 20:55:03,513 INFO L? ?]: Removed 894 outVars from TransFormulas that were not future-live. [2024-11-22 20:55:03,513 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 20:55:03,535 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 20:55:03,535 INFO L316 CfgBuilder]: Removed 40 assume(true) statements. [2024-11-22 20:55:03,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 08:55:03 BoogieIcfgContainer [2024-11-22 20:55:03,535 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 20:55:03,537 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 20:55:03,537 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 20:55:03,540 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 20:55:03,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 08:54:59" (1/3) ... [2024-11-22 20:55:03,541 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12315ef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 08:55:03, skipping insertion in model container [2024-11-22 20:55:03,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:55:00" (2/3) ... [2024-11-22 20:55:03,541 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12315ef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 08:55:03, skipping insertion in model container [2024-11-22 20:55:03,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 08:55:03" (3/3) ... [2024-11-22 20:55:03,546 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_nondet_test1-2.i [2024-11-22 20:55:03,560 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 20:55:03,561 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 425 error locations. [2024-11-22 20:55:03,623 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 20:55:03,629 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;@67509e71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 20:55:03,629 INFO L334 AbstractCegarLoop]: Starting to check reachability of 425 error locations. [2024-11-22 20:55:03,635 INFO L276 IsEmpty]: Start isEmpty. Operand has 837 states, 410 states have (on average 2.231707317073171) internal successors, (915), 832 states have internal predecessors, (915), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 20:55:03,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-22 20:55:03,639 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:55:03,640 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-22 20:55:03,640 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:55:03,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:55:03,645 INFO L85 PathProgramCache]: Analyzing trace with hash 45876316, now seen corresponding path program 1 times [2024-11-22 20:55:03,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:55:03,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1461305824] [2024-11-22 20:55:03,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:55:03,656 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 20:55:03,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:55:03,660 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 20:55:03,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-22 20:55:03,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:55:03,819 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 20:55:03,823 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:55:03,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-22 20:55:03,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:55:03,883 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 20:55:03,884 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:55:03,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1461305824] [2024-11-22 20:55:03,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1461305824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:55:03,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:55:03,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 20:55:03,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342768713] [2024-11-22 20:55:03,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:55:03,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 20:55:03,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 20:55:03,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 20:55:03,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 20:55:03,930 INFO L87 Difference]: Start difference. First operand has 837 states, 410 states have (on average 2.231707317073171) internal successors, (915), 832 states have internal predecessors, (915), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2024-11-22 20:55:05,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:55:05,201 INFO L93 Difference]: Finished difference Result 780 states and 819 transitions. [2024-11-22 20:55:05,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 20:55:05,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 [2024-11-22 20:55:05,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:55:05,219 INFO L225 Difference]: With dead ends: 780 [2024-11-22 20:55:05,219 INFO L226 Difference]: Without dead ends: 778 [2024-11-22 20:55:05,221 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 [2024-11-22 20:55:05,224 INFO L432 NwaCegarLoop]: 507 mSDtfsCounter, 516 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-22 20:55:05,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 622 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-22 20:55:05,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2024-11-22 20:55:05,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 776. [2024-11-22 20:55:05,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 776 states, 404 states have (on average 2.0) internal successors, (808), 771 states have internal predecessors, (808), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 20:55:05,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 814 transitions. [2024-11-22 20:55:05,302 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 814 transitions. Word has length 5 [2024-11-22 20:55:05,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:55:05,302 INFO L471 AbstractCegarLoop]: Abstraction has 776 states and 814 transitions. [2024-11-22 20:55:05,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2024-11-22 20:55:05,303 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 814 transitions. [2024-11-22 20:55:05,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-22 20:55:05,303 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:55:05,304 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-22 20:55:05,308 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-22 20:55:05,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 20:55:05,507 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:55:05,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:55:05,507 INFO L85 PathProgramCache]: Analyzing trace with hash 45876317, now seen corresponding path program 1 times [2024-11-22 20:55:05,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:55:05,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [676276032] [2024-11-22 20:55:05,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:55:05,508 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 20:55:05,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:55:05,512 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 20:55:05,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-22 20:55:05,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:55:05,597 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 20:55:05,598 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:55:05,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-22 20:55:05,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:55:05,624 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 20:55:05,624 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:55:05,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [676276032] [2024-11-22 20:55:05,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [676276032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:55:05,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:55:05,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 20:55:05,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376405974] [2024-11-22 20:55:05,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:55:05,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 20:55:05,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 20:55:05,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 20:55:05,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 20:55:05,628 INFO L87 Difference]: Start difference. First operand 776 states and 814 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2024-11-22 20:55:06,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:55:06,731 INFO L93 Difference]: Finished difference Result 850 states and 892 transitions. [2024-11-22 20:55:06,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 20:55:06,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 [2024-11-22 20:55:06,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:55:06,735 INFO L225 Difference]: With dead ends: 850 [2024-11-22 20:55:06,736 INFO L226 Difference]: Without dead ends: 850 [2024-11-22 20:55:06,736 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 [2024-11-22 20:55:06,737 INFO L432 NwaCegarLoop]: 684 mSDtfsCounter, 267 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-22 20:55:06,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 965 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-22 20:55:06,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2024-11-22 20:55:06,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 802. [2024-11-22 20:55:06,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 441 states have (on average 1.9750566893424035) internal successors, (871), 797 states have internal predecessors, (871), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 20:55:06,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 877 transitions. [2024-11-22 20:55:06,757 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 877 transitions. Word has length 5 [2024-11-22 20:55:06,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:55:06,757 INFO L471 AbstractCegarLoop]: Abstraction has 802 states and 877 transitions. [2024-11-22 20:55:06,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2024-11-22 20:55:06,757 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 877 transitions. [2024-11-22 20:55:06,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-22 20:55:06,757 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:55:06,757 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-22 20:55:06,760 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-22 20:55:06,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 20:55:06,958 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr314REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:55:06,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:55:06,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1422978266, now seen corresponding path program 1 times [2024-11-22 20:55:06,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:55:06,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [940968092] [2024-11-22 20:55:06,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:55:06,960 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 20:55:06,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:55:06,963 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 20:55:06,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-22 20:55:07,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:55:07,049 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 20:55:07,050 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:55:07,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:55:07,058 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 20:55:07,058 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:55:07,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [940968092] [2024-11-22 20:55:07,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [940968092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:55:07,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:55:07,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 20:55:07,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010819164] [2024-11-22 20:55:07,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:55:07,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 20:55:07,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 20:55:07,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 20:55:07,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 20:55:07,062 INFO L87 Difference]: Start difference. First operand 802 states and 877 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:55:07,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:55:07,110 INFO L93 Difference]: Finished difference Result 1379 states and 1517 transitions. [2024-11-22 20:55:07,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 20:55:07,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2024-11-22 20:55:07,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:55:07,117 INFO L225 Difference]: With dead ends: 1379 [2024-11-22 20:55:07,117 INFO L226 Difference]: Without dead ends: 1379 [2024-11-22 20:55:07,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 20:55:07,119 INFO L432 NwaCegarLoop]: 1015 mSDtfsCounter, 559 mSDsluCounter, 798 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 1813 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 20:55:07,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 1813 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 20:55:07,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1379 states. [2024-11-22 20:55:07,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1379 to 803. [2024-11-22 20:55:07,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 442 states have (on average 1.9728506787330318) internal successors, (872), 798 states have internal predecessors, (872), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 20:55:07,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 878 transitions. [2024-11-22 20:55:07,157 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 878 transitions. Word has length 6 [2024-11-22 20:55:07,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:55:07,158 INFO L471 AbstractCegarLoop]: Abstraction has 803 states and 878 transitions. [2024-11-22 20:55:07,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:55:07,158 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 878 transitions. [2024-11-22 20:55:07,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-22 20:55:07,160 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:55:07,161 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 20:55:07,164 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 [2024-11-22 20:55:07,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 20:55:07,364 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:55:07,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:55:07,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1612480742, now seen corresponding path program 1 times [2024-11-22 20:55:07,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:55:07,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1695628272] [2024-11-22 20:55:07,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:55:07,366 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 20:55:07,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:55:07,369 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 20:55:07,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-22 20:55:07,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:55:07,483 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 20:55:07,485 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:55:07,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:55:07,497 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 20:55:07,498 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:55:07,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1695628272] [2024-11-22 20:55:07,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1695628272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:55:07,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:55:07,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 20:55:07,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651480726] [2024-11-22 20:55:07,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:55:07,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 20:55:07,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 20:55:07,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 20:55:07,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 20:55:07,502 INFO L87 Difference]: Start difference. First operand 803 states and 878 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:55:07,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:55:07,535 INFO L93 Difference]: Finished difference Result 761 states and 835 transitions. [2024-11-22 20:55:07,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 20:55:07,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2024-11-22 20:55:07,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:55:07,538 INFO L225 Difference]: With dead ends: 761 [2024-11-22 20:55:07,538 INFO L226 Difference]: Without dead ends: 761 [2024-11-22 20:55:07,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 20:55:07,542 INFO L432 NwaCegarLoop]: 748 mSDtfsCounter, 71 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 1433 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 20:55:07,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 1433 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 20:55:07,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2024-11-22 20:55:07,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 761. [2024-11-22 20:55:07,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 761 states, 424 states have (on average 1.955188679245283) internal successors, (829), 756 states have internal predecessors, (829), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 20:55:07,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761 states to 761 states and 835 transitions. [2024-11-22 20:55:07,559 INFO L78 Accepts]: Start accepts. Automaton has 761 states and 835 transitions. Word has length 15 [2024-11-22 20:55:07,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:55:07,559 INFO L471 AbstractCegarLoop]: Abstraction has 761 states and 835 transitions. [2024-11-22 20:55:07,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:55:07,560 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states and 835 transitions. [2024-11-22 20:55:07,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-22 20:55:07,563 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:55:07,564 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 20:55:07,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-11-22 20:55:07,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 20:55:07,765 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:55:07,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:55:07,765 INFO L85 PathProgramCache]: Analyzing trace with hash -889204479, now seen corresponding path program 1 times [2024-11-22 20:55:07,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:55:07,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [40235693] [2024-11-22 20:55:07,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:55:07,766 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 20:55:07,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:55:07,769 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 20:55:07,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-22 20:55:07,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:55:07,883 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 20:55:07,884 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:55:07,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:55:07,902 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 20:55:07,903 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:55:07,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [40235693] [2024-11-22 20:55:07,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [40235693] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:55:07,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:55:07,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 20:55:07,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252166398] [2024-11-22 20:55:07,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:55:07,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 20:55:07,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 20:55:07,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 20:55:07,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 20:55:07,905 INFO L87 Difference]: Start difference. First operand 761 states and 835 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:55:07,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:55:07,976 INFO L93 Difference]: Finished difference Result 739 states and 806 transitions. [2024-11-22 20:55:07,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 20:55:07,976 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-22 20:55:07,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:55:07,979 INFO L225 Difference]: With dead ends: 739 [2024-11-22 20:55:07,979 INFO L226 Difference]: Without dead ends: 739 [2024-11-22 20:55:07,979 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 20:55:07,980 INFO L432 NwaCegarLoop]: 703 mSDtfsCounter, 48 mSDsluCounter, 1380 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 2083 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 20:55:07,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 2083 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 20:55:07,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2024-11-22 20:55:07,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 739. [2024-11-22 20:55:07,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 416 states have (on average 1.9230769230769231) internal successors, (800), 734 states have internal predecessors, (800), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 20:55:07,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 806 transitions. [2024-11-22 20:55:07,993 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 806 transitions. Word has length 17 [2024-11-22 20:55:07,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:55:07,994 INFO L471 AbstractCegarLoop]: Abstraction has 739 states and 806 transitions. [2024-11-22 20:55:07,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:55:07,994 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 806 transitions. [2024-11-22 20:55:07,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-22 20:55:07,995 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:55:07,995 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] [2024-11-22 20:55:07,999 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-22 20:55:08,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 20:55:08,196 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr44REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:55:08,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:55:08,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1527750574, now seen corresponding path program 1 times [2024-11-22 20:55:08,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:55:08,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [89289060] [2024-11-22 20:55:08,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:55:08,198 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 20:55:08,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:55:08,200 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 20:55:08,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-22 20:55:08,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:55:08,321 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 20:55:08,323 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:55:08,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-22 20:55:08,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:55:08,406 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 20:55:08,406 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:55:08,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [89289060] [2024-11-22 20:55:08,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [89289060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:55:08,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:55:08,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 20:55:08,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516490078] [2024-11-22 20:55:08,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:55:08,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 20:55:08,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 20:55:08,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 20:55:08,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 20:55:08,408 INFO L87 Difference]: Start difference. First operand 739 states and 806 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:55:09,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:55:09,662 INFO L93 Difference]: Finished difference Result 739 states and 806 transitions. [2024-11-22 20:55:09,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 20:55:09,663 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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 31 [2024-11-22 20:55:09,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:55:09,666 INFO L225 Difference]: With dead ends: 739 [2024-11-22 20:55:09,666 INFO L226 Difference]: Without dead ends: 739 [2024-11-22 20:55:09,666 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 20:55:09,667 INFO L432 NwaCegarLoop]: 459 mSDtfsCounter, 449 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 883 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-22 20:55:09,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 883 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-22 20:55:09,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2024-11-22 20:55:09,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 735. [2024-11-22 20:55:09,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 416 states have (on average 1.9134615384615385) internal successors, (796), 730 states have internal predecessors, (796), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 20:55:09,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 802 transitions. [2024-11-22 20:55:09,682 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 802 transitions. Word has length 31 [2024-11-22 20:55:09,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:55:09,683 INFO L471 AbstractCegarLoop]: Abstraction has 735 states and 802 transitions. [2024-11-22 20:55:09,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:55:09,683 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 802 transitions. [2024-11-22 20:55:09,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-22 20:55:09,684 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:55:09,684 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] [2024-11-22 20:55:09,689 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-22 20:55:09,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 20:55:09,885 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr45REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:55:09,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:55:09,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1527750575, now seen corresponding path program 1 times [2024-11-22 20:55:09,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:55:09,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [727680317] [2024-11-22 20:55:09,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:55:09,887 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 20:55:09,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:55:09,888 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 20:55:09,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-22 20:55:10,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:55:10,005 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 20:55:10,007 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:55:10,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-22 20:55:10,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:55:10,205 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 20:55:10,205 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:55:10,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [727680317] [2024-11-22 20:55:10,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [727680317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:55:10,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:55:10,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 20:55:10,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116071828] [2024-11-22 20:55:10,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:55:10,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 20:55:10,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 20:55:10,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 20:55:10,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 20:55:10,207 INFO L87 Difference]: Start difference. First operand 735 states and 802 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:55:11,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:55:11,649 INFO L93 Difference]: Finished difference Result 783 states and 817 transitions. [2024-11-22 20:55:11,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 20:55:11,650 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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 31 [2024-11-22 20:55:11,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:55:11,653 INFO L225 Difference]: With dead ends: 783 [2024-11-22 20:55:11,653 INFO L226 Difference]: Without dead ends: 783 [2024-11-22 20:55:11,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 20:55:11,654 INFO L432 NwaCegarLoop]: 638 mSDtfsCounter, 196 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-22 20:55:11,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 1246 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-22 20:55:11,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2024-11-22 20:55:11,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 731. [2024-11-22 20:55:11,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 731 states, 416 states have (on average 1.9038461538461537) internal successors, (792), 726 states have internal predecessors, (792), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 20:55:11,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 798 transitions. [2024-11-22 20:55:11,666 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 798 transitions. Word has length 31 [2024-11-22 20:55:11,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:55:11,666 INFO L471 AbstractCegarLoop]: Abstraction has 731 states and 798 transitions. [2024-11-22 20:55:11,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:55:11,667 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 798 transitions. [2024-11-22 20:55:11,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-22 20:55:11,668 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:55:11,668 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] [2024-11-22 20:55:11,673 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-22 20:55:11,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 20:55:11,869 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr109REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:55:11,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:55:11,869 INFO L85 PathProgramCache]: Analyzing trace with hash -427866328, now seen corresponding path program 1 times [2024-11-22 20:55:11,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:55:11,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1021305910] [2024-11-22 20:55:11,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:55:11,870 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 20:55:11,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:55:11,873 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 20:55:11,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-22 20:55:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:55:12,012 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 20:55:12,014 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:55:12,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:55:12,049 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 20:55:12,049 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:55:12,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1021305910] [2024-11-22 20:55:12,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1021305910] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:55:12,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:55:12,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 20:55:12,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187444725] [2024-11-22 20:55:12,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:55:12,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 20:55:12,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 20:55:12,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 20:55:12,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 20:55:12,050 INFO L87 Difference]: Start difference. First operand 731 states and 798 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:55:12,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:55:12,099 INFO L93 Difference]: Finished difference Result 725 states and 788 transitions. [2024-11-22 20:55:12,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 20:55:12,100 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 47 [2024-11-22 20:55:12,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:55:12,102 INFO L225 Difference]: With dead ends: 725 [2024-11-22 20:55:12,102 INFO L226 Difference]: Without dead ends: 725 [2024-11-22 20:55:12,103 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 20:55:12,103 INFO L432 NwaCegarLoop]: 697 mSDtfsCounter, 21 mSDsluCounter, 1363 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2060 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 20:55:12,104 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2060 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 20:55:12,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2024-11-22 20:55:12,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 725. [2024-11-22 20:55:12,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 410 states have (on average 1.9073170731707316) internal successors, (782), 720 states have internal predecessors, (782), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 20:55:12,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 788 transitions. [2024-11-22 20:55:12,115 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 788 transitions. Word has length 47 [2024-11-22 20:55:12,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:55:12,115 INFO L471 AbstractCegarLoop]: Abstraction has 725 states and 788 transitions. [2024-11-22 20:55:12,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:55:12,115 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 788 transitions. [2024-11-22 20:55:12,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-22 20:55:12,116 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:55:12,116 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] [2024-11-22 20:55:12,123 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-22 20:55:12,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 20:55:12,317 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr109REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:55:12,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:55:12,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1425126540, now seen corresponding path program 1 times [2024-11-22 20:55:12,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:55:12,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1509828225] [2024-11-22 20:55:12,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:55:12,319 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 20:55:12,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:55:12,320 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 20:55:12,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-22 20:55:12,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:55:12,494 INFO L255 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 20:55:12,496 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:55:12,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:55:12,737 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 20:55:12,737 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:55:12,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1509828225] [2024-11-22 20:55:12,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1509828225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:55:12,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:55:12,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 20:55:12,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296636327] [2024-11-22 20:55:12,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:55:12,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 20:55:12,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 20:55:12,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 20:55:12,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 20:55:12,739 INFO L87 Difference]: Start difference. First operand 725 states and 788 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:55:12,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:55:12,925 INFO L93 Difference]: Finished difference Result 947 states and 1039 transitions. [2024-11-22 20:55:12,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 20:55:12,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 55 [2024-11-22 20:55:12,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:55:12,929 INFO L225 Difference]: With dead ends: 947 [2024-11-22 20:55:12,929 INFO L226 Difference]: Without dead ends: 947 [2024-11-22 20:55:12,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 20:55:12,930 INFO L432 NwaCegarLoop]: 784 mSDtfsCounter, 178 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 1430 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 20:55:12,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 1430 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 20:55:12,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2024-11-22 20:55:12,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 776. [2024-11-22 20:55:12,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 776 states, 461 states have (on average 1.806941431670282) internal successors, (833), 771 states have internal predecessors, (833), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 20:55:12,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 839 transitions. [2024-11-22 20:55:12,943 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 839 transitions. Word has length 55 [2024-11-22 20:55:12,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:55:12,944 INFO L471 AbstractCegarLoop]: Abstraction has 776 states and 839 transitions. [2024-11-22 20:55:12,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:55:12,944 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 839 transitions. [2024-11-22 20:55:12,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-22 20:55:12,945 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:55:12,946 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] [2024-11-22 20:55:12,952 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2024-11-22 20:55:13,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 20:55:13,147 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr63REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:55:13,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:55:13,150 INFO L85 PathProgramCache]: Analyzing trace with hash -300499055, now seen corresponding path program 1 times [2024-11-22 20:55:13,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:55:13,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [761992893] [2024-11-22 20:55:13,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:55:13,151 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 20:55:13,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:55:13,156 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 20:55:13,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-22 20:55:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:55:13,474 INFO L255 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 20:55:13,477 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:55:13,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-22 20:55:13,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-22 20:55:13,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 20:55:13,939 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-22 20:55:13,955 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-22 20:55:13,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-22 20:55:13,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:55:13,969 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 20:55:13,970 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:55:13,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [761992893] [2024-11-22 20:55:13,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [761992893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:55:13,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:55:13,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 20:55:13,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168279868] [2024-11-22 20:55:13,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:55:13,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 20:55:13,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 20:55:13,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 20:55:13,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 20:55:13,972 INFO L87 Difference]: Start difference. First operand 776 states and 839 transitions. Second operand has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:55:14,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:55:14,863 INFO L93 Difference]: Finished difference Result 738 states and 801 transitions. [2024-11-22 20:55:14,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 20:55:14,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 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 58 [2024-11-22 20:55:14,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:55:14,866 INFO L225 Difference]: With dead ends: 738 [2024-11-22 20:55:14,866 INFO L226 Difference]: Without dead ends: 738 [2024-11-22 20:55:14,866 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 20:55:14,866 INFO L432 NwaCegarLoop]: 373 mSDtfsCounter, 748 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-22 20:55:14,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [751 Valid, 490 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-22 20:55:14,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2024-11-22 20:55:14,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 701. [2024-11-22 20:55:14,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 424 states have (on average 1.7004716981132075) internal successors, (721), 696 states have internal predecessors, (721), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 20:55:14,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 727 transitions. [2024-11-22 20:55:14,877 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 727 transitions. Word has length 58 [2024-11-22 20:55:14,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:55:14,877 INFO L471 AbstractCegarLoop]: Abstraction has 701 states and 727 transitions. [2024-11-22 20:55:14,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:55:14,877 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 727 transitions. [2024-11-22 20:55:14,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-22 20:55:14,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:55:14,878 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 20:55:14,887 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 (11)] Ended with exit code 0 [2024-11-22 20:55:15,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 20:55:15,083 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr68REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:55:15,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:55:15,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1649417159, now seen corresponding path program 1 times [2024-11-22 20:55:15,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:55:15,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [229744478] [2024-11-22 20:55:15,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:55:15,084 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 20:55:15,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:55:15,087 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 20:55:15,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-22 20:55:15,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:55:15,278 INFO L255 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 20:55:15,281 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:55:15,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-22 20:55:15,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-22 20:55:15,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-22 20:55:15,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:55:15,334 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 20:55:15,334 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:55:15,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [229744478] [2024-11-22 20:55:15,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [229744478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:55:15,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:55:15,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 20:55:15,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130297084] [2024-11-22 20:55:15,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:55:15,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 20:55:15,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 20:55:15,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 20:55:15,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 20:55:15,336 INFO L87 Difference]: Start difference. First operand 701 states and 727 transitions. Second operand has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:55:16,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:55:16,477 INFO L93 Difference]: Finished difference Result 700 states and 726 transitions. [2024-11-22 20:55:16,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 20:55:16,477 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 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 63 [2024-11-22 20:55:16,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:55:16,480 INFO L225 Difference]: With dead ends: 700 [2024-11-22 20:55:16,480 INFO L226 Difference]: Without dead ends: 700 [2024-11-22 20:55:16,480 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 20:55:16,481 INFO L432 NwaCegarLoop]: 670 mSDtfsCounter, 2 mSDsluCounter, 1009 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 1009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-22 20:55:16,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1679 Invalid, 1009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1008 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-22 20:55:16,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2024-11-22 20:55:16,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 700. [2024-11-22 20:55:16,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 424 states have (on average 1.6981132075471699) internal successors, (720), 695 states have internal predecessors, (720), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 20:55:16,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 726 transitions. [2024-11-22 20:55:16,491 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 726 transitions. Word has length 63 [2024-11-22 20:55:16,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:55:16,491 INFO L471 AbstractCegarLoop]: Abstraction has 700 states and 726 transitions. [2024-11-22 20:55:16,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:55:16,491 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 726 transitions. [2024-11-22 20:55:16,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-22 20:55:16,492 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:55:16,492 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 20:55:16,499 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-11-22 20:55:16,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 20:55:16,693 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr69REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:55:16,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:55:16,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1649417160, now seen corresponding path program 1 times [2024-11-22 20:55:16,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:55:16,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1125642071] [2024-11-22 20:55:16,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:55:16,694 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 20:55:16,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:55:16,695 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 20:55:16,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-22 20:55:16,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:55:16,889 INFO L255 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-22 20:55:16,891 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:55:16,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-22 20:55:16,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-22 20:55:16,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-22 20:55:16,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-22 20:55:16,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:55:16,985 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 20:55:16,988 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:55:16,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1125642071] [2024-11-22 20:55:16,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1125642071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:55:16,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:55:16,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 20:55:16,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168060885] [2024-11-22 20:55:16,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:55:16,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 20:55:16,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 20:55:16,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 20:55:16,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 20:55:16,990 INFO L87 Difference]: Start difference. First operand 700 states and 726 transitions. Second operand has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:55:18,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:55:18,475 INFO L93 Difference]: Finished difference Result 699 states and 725 transitions. [2024-11-22 20:55:18,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 20:55:18,476 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 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 63 [2024-11-22 20:55:18,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:55:18,478 INFO L225 Difference]: With dead ends: 699 [2024-11-22 20:55:18,478 INFO L226 Difference]: Without dead ends: 699 [2024-11-22 20:55:18,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 20:55:18,479 INFO L432 NwaCegarLoop]: 670 mSDtfsCounter, 1 mSDsluCounter, 1034 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1704 SdHoareTripleChecker+Invalid, 981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-22 20:55:18,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1704 Invalid, 981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-22 20:55:18,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2024-11-22 20:55:18,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 699. [2024-11-22 20:55:18,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 423 states have (on average 1.6997635933806146) internal successors, (719), 694 states have internal predecessors, (719), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 20:55:18,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 725 transitions. [2024-11-22 20:55:18,489 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 725 transitions. Word has length 63 [2024-11-22 20:55:18,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:55:18,489 INFO L471 AbstractCegarLoop]: Abstraction has 699 states and 725 transitions. [2024-11-22 20:55:18,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:55:18,489 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 725 transitions. [2024-11-22 20:55:18,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-22 20:55:18,490 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:55:18,490 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 20:55:18,498 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-11-22 20:55:18,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 20:55:18,691 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:55:18,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:55:18,692 INFO L85 PathProgramCache]: Analyzing trace with hash 973485871, now seen corresponding path program 1 times [2024-11-22 20:55:18,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:55:18,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [567873033] [2024-11-22 20:55:18,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:55:18,692 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 20:55:18,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:55:18,693 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 20:55:18,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-22 20:55:18,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:55:18,877 INFO L255 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 20:55:18,879 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:55:18,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:55:18,902 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 20:55:18,902 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:55:18,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [567873033] [2024-11-22 20:55:18,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [567873033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:55:18,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:55:18,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 20:55:18,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631125230] [2024-11-22 20:55:18,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:55:18,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 20:55:18,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 20:55:18,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 20:55:18,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 20:55:18,904 INFO L87 Difference]: Start difference. First operand 699 states and 725 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 20:55:18,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:55:18,926 INFO L93 Difference]: Finished difference Result 702 states and 729 transitions. [2024-11-22 20:55:18,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 20:55:18,927 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 71 [2024-11-22 20:55:18,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:55:18,930 INFO L225 Difference]: With dead ends: 702 [2024-11-22 20:55:18,930 INFO L226 Difference]: Without dead ends: 702 [2024-11-22 20:55:18,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 20:55:18,931 INFO L432 NwaCegarLoop]: 670 mSDtfsCounter, 0 mSDsluCounter, 1335 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2005 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 20:55:18,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2005 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 20:55:18,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2024-11-22 20:55:18,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 702. [2024-11-22 20:55:18,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 425 states have (on average 1.6988235294117646) internal successors, (722), 697 states have internal predecessors, (722), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-22 20:55:18,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 729 transitions. [2024-11-22 20:55:18,943 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 729 transitions. Word has length 71 [2024-11-22 20:55:18,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:55:18,943 INFO L471 AbstractCegarLoop]: Abstraction has 702 states and 729 transitions. [2024-11-22 20:55:18,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 20:55:18,943 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 729 transitions. [2024-11-22 20:55:18,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-22 20:55:18,944 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:55:18,944 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 20:55:18,952 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-11-22 20:55:19,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 20:55:19,145 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:55:19,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:55:19,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1482811020, now seen corresponding path program 1 times [2024-11-22 20:55:19,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:55:19,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [461489081] [2024-11-22 20:55:19,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:55:19,146 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 20:55:19,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:55:19,148 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 20:55:19,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-22 20:55:19,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:55:19,345 INFO L255 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 20:55:19,347 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:55:19,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:55:19,369 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 20:55:19,433 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:55:19,437 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:55:19,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [461489081] [2024-11-22 20:55:19,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [461489081] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 20:55:19,437 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 20:55:19,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-22 20:55:19,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734592944] [2024-11-22 20:55:19,438 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 20:55:19,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 20:55:19,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 20:55:19,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 20:55:19,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-22 20:55:19,439 INFO L87 Difference]: Start difference. First operand 702 states and 729 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 20:55:19,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:55:19,561 INFO L93 Difference]: Finished difference Result 714 states and 746 transitions. [2024-11-22 20:55:19,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 20:55:19,562 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 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 72 [2024-11-22 20:55:19,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:55:19,565 INFO L225 Difference]: With dead ends: 714 [2024-11-22 20:55:19,565 INFO L226 Difference]: Without dead ends: 714 [2024-11-22 20:55:19,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-22 20:55:19,566 INFO L432 NwaCegarLoop]: 670 mSDtfsCounter, 5 mSDsluCounter, 3331 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4001 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 20:55:19,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 4001 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 20:55:19,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2024-11-22 20:55:19,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 712. [2024-11-22 20:55:19,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 434 states have (on average 1.6981566820276497) internal successors, (737), 706 states have internal predecessors, (737), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-22 20:55:19,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 744 transitions. [2024-11-22 20:55:19,577 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 744 transitions. Word has length 72 [2024-11-22 20:55:19,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:55:19,577 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 744 transitions. [2024-11-22 20:55:19,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 20:55:19,578 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 744 transitions. [2024-11-22 20:55:19,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-22 20:55:19,578 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:55:19,578 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 20:55:19,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2024-11-22 20:55:19,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 20:55:19,779 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:55:19,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:55:19,780 INFO L85 PathProgramCache]: Analyzing trace with hash -886725009, now seen corresponding path program 2 times [2024-11-22 20:55:19,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:55:19,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2059226020] [2024-11-22 20:55:19,781 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 20:55:19,781 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 20:55:19,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:55:19,784 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 20:55:19,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-22 20:55:20,169 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 20:55:20,169 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 20:55:20,178 INFO L255 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 20:55:20,179 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:55:20,221 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:55:20,221 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 20:55:20,345 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:55:20,346 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:55:20,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2059226020] [2024-11-22 20:55:20,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2059226020] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 20:55:20,346 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 20:55:20,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-22 20:55:20,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351665152] [2024-11-22 20:55:20,346 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 20:55:20,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 20:55:20,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 20:55:20,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 20:55:20,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-22 20:55:20,348 INFO L87 Difference]: Start difference. First operand 712 states and 744 transitions. Second operand has 14 states, 14 states have (on average 5.714285714285714) internal successors, (80), 14 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 20:55:20,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:55:20,715 INFO L93 Difference]: Finished difference Result 727 states and 766 transitions. [2024-11-22 20:55:20,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-22 20:55:20,716 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.714285714285714) internal successors, (80), 14 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 75 [2024-11-22 20:55:20,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:55:20,718 INFO L225 Difference]: With dead ends: 727 [2024-11-22 20:55:20,719 INFO L226 Difference]: Without dead ends: 723 [2024-11-22 20:55:20,719 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-11-22 20:55:20,719 INFO L432 NwaCegarLoop]: 670 mSDtfsCounter, 9 mSDsluCounter, 4003 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 4673 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 20:55:20,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 4673 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 20:55:20,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2024-11-22 20:55:20,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 721. [2024-11-22 20:55:20,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 443 states have (on average 1.690744920993228) internal successors, (749), 715 states have internal predecessors, (749), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-22 20:55:20,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 756 transitions. [2024-11-22 20:55:20,731 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 756 transitions. Word has length 75 [2024-11-22 20:55:20,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:55:20,732 INFO L471 AbstractCegarLoop]: Abstraction has 721 states and 756 transitions. [2024-11-22 20:55:20,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.714285714285714) internal successors, (80), 14 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 20:55:20,732 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 756 transitions. [2024-11-22 20:55:20,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-22 20:55:20,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:55:20,733 INFO L215 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 20:55:20,743 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-11-22 20:55:20,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 20:55:20,934 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:55:20,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:55:20,934 INFO L85 PathProgramCache]: Analyzing trace with hash -677658289, now seen corresponding path program 3 times [2024-11-22 20:55:20,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:55:20,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [121170754] [2024-11-22 20:55:20,934 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 20:55:20,935 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 20:55:20,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:55:20,936 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 20:55:20,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-11-22 20:55:21,429 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-22 20:55:21,429 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 20:55:21,440 INFO L255 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-22 20:55:21,442 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:55:21,558 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:55:21,558 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 20:55:21,966 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:55:21,967 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:55:21,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [121170754] [2024-11-22 20:55:21,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [121170754] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 20:55:21,967 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 20:55:21,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-11-22 20:55:21,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288602913] [2024-11-22 20:55:21,967 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 20:55:21,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-22 20:55:21,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 20:55:21,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-22 20:55:21,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-11-22 20:55:21,969 INFO L87 Difference]: Start difference. First operand 721 states and 756 transitions. Second operand has 26 states, 26 states have (on average 3.5384615384615383) internal successors, (92), 26 states have internal predecessors, (92), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 20:55:23,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:55:23,400 INFO L93 Difference]: Finished difference Result 745 states and 795 transitions. [2024-11-22 20:55:23,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-22 20:55:23,401 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.5384615384615383) internal successors, (92), 26 states have internal predecessors, (92), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 81 [2024-11-22 20:55:23,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:55:23,404 INFO L225 Difference]: With dead ends: 745 [2024-11-22 20:55:23,404 INFO L226 Difference]: Without dead ends: 739 [2024-11-22 20:55:23,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-11-22 20:55:23,408 INFO L432 NwaCegarLoop]: 671 mSDtfsCounter, 26 mSDsluCounter, 7350 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 8021 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 20:55:23,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 8021 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 20:55:23,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2024-11-22 20:55:23,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 739. [2024-11-22 20:55:23,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 461 states have (on average 1.6746203904555315) internal successors, (772), 733 states have internal predecessors, (772), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-22 20:55:23,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 779 transitions. [2024-11-22 20:55:23,421 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 779 transitions. Word has length 81 [2024-11-22 20:55:23,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:55:23,422 INFO L471 AbstractCegarLoop]: Abstraction has 739 states and 779 transitions. [2024-11-22 20:55:23,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.5384615384615383) internal successors, (92), 26 states have internal predecessors, (92), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 20:55:23,422 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 779 transitions. [2024-11-22 20:55:23,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-22 20:55:23,423 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:55:23,423 INFO L215 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 20:55:23,433 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 [2024-11-22 20:55:23,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 20:55:23,624 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:55:23,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:55:23,624 INFO L85 PathProgramCache]: Analyzing trace with hash -338755825, now seen corresponding path program 4 times [2024-11-22 20:55:23,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:55:23,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1004883265] [2024-11-22 20:55:23,625 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 20:55:23,625 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 20:55:23,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:55:23,626 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 20:55:23,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-22 20:55:24,002 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 20:55:24,002 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 20:55:24,014 INFO L255 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-22 20:55:24,016 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:55:24,366 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:55:24,367 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 20:55:25,547 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:55:25,547 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:55:25,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1004883265] [2024-11-22 20:55:25,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1004883265] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 20:55:25,547 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 20:55:25,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2024-11-22 20:55:25,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793934917] [2024-11-22 20:55:25,547 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 20:55:25,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-11-22 20:55:25,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 20:55:25,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-11-22 20:55:25,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2024-11-22 20:55:25,552 INFO L87 Difference]: Start difference. First operand 739 states and 779 transitions. Second operand has 50 states, 50 states have (on average 2.32) internal successors, (116), 50 states have internal predecessors, (116), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 20:55:29,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:55:29,661 INFO L93 Difference]: Finished difference Result 779 states and 851 transitions. [2024-11-22 20:55:29,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-11-22 20:55:29,662 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 2.32) internal successors, (116), 50 states have internal predecessors, (116), 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 93 [2024-11-22 20:55:29,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:55:29,665 INFO L225 Difference]: With dead ends: 779 [2024-11-22 20:55:29,665 INFO L226 Difference]: Without dead ends: 775 [2024-11-22 20:55:29,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=2713, Invalid=5843, Unknown=0, NotChecked=0, Total=8556 [2024-11-22 20:55:29,668 INFO L432 NwaCegarLoop]: 670 mSDtfsCounter, 32 mSDsluCounter, 16009 mSDsCounter, 0 mSdLazyCounter, 1955 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 16679 SdHoareTripleChecker+Invalid, 1991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-22 20:55:29,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 16679 Invalid, 1991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1955 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-22 20:55:29,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2024-11-22 20:55:29,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 773. [2024-11-22 20:55:29,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 773 states, 495 states have (on average 1.6525252525252525) internal successors, (818), 767 states have internal predecessors, (818), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-22 20:55:29,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 825 transitions. [2024-11-22 20:55:29,680 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 825 transitions. Word has length 93 [2024-11-22 20:55:29,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:55:29,680 INFO L471 AbstractCegarLoop]: Abstraction has 773 states and 825 transitions. [2024-11-22 20:55:29,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.32) internal successors, (116), 50 states have internal predecessors, (116), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 20:55:29,680 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 825 transitions. [2024-11-22 20:55:29,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-22 20:55:29,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:55:29,681 INFO L215 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 20:55:29,693 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 [2024-11-22 20:55:29,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 20:55:29,883 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:55:29,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:55:29,883 INFO L85 PathProgramCache]: Analyzing trace with hash 287219439, now seen corresponding path program 5 times [2024-11-22 20:55:29,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:55:29,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [433393195] [2024-11-22 20:55:29,884 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 20:55:29,884 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 20:55:29,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:55:29,887 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 20:55:29,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-11-22 20:55:30,890 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2024-11-22 20:55:30,891 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 20:55:30,908 INFO L255 TraceCheckSpWp]: Trace formula consists of 773 conjuncts, 109 conjuncts are in the unsatisfiable core [2024-11-22 20:55:30,918 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:55:30,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-22 20:55:31,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-22 20:55:31,129 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-22 20:55:31,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-22 20:55:31,150 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 15 treesize of output 1 [2024-11-22 20:55:31,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-22 20:55:31,237 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 18 treesize of output 10 [2024-11-22 20:55:31,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-22 20:55:31,942 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-22 20:55:31,942 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 50 treesize of output 45 [2024-11-22 20:55:31,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2024-11-22 20:55:31,986 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 25 treesize of output 13 [2024-11-22 20:55:31,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-22 20:55:32,014 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-22 20:55:32,014 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 20:55:32,939 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_1738 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_1738) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd (_ bv20 32) .cse0)))) (forall ((v_ArrVal_1739 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1738 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv20 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_1738) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_1739) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-22 20:55:32,944 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:55:32,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [433393195] [2024-11-22 20:55:32,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [433393195] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 20:55:32,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [753555231] [2024-11-22 20:55:32,944 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 20:55:32,944 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-22 20:55:32,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-22 20:55:32,946 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) [2024-11-22 20:55:32,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process