./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-2.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 14558cb0aef5bf60b4a230892060936885d87372f6515d5d8ad78f7b805ad735 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 02:54:00,103 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 02:54:00,169 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 02:54:00,175 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 02:54:00,175 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 02:54:00,210 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 02:54:00,212 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 02:54:00,212 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 02:54:00,213 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 02:54:00,214 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 02:54:00,215 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 02:54:00,215 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 02:54:00,216 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 02:54:00,217 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 02:54:00,218 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 02:54:00,218 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 02:54:00,218 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 02:54:00,219 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 02:54:00,222 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 02:54:00,222 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 02:54:00,222 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 02:54:00,223 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 02:54:00,223 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 02:54:00,223 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 02:54:00,223 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 02:54:00,224 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 02:54:00,224 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 02:54:00,224 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 02:54:00,224 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 02:54:00,225 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 02:54:00,233 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 02:54:00,233 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 02:54:00,233 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 02:54:00,233 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 02:54:00,234 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 02:54:00,234 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 02:54:00,234 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 02:54:00,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 02:54:00,234 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 02:54:00,235 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 02:54:00,235 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 02:54:00,235 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 02:54:00,236 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14558cb0aef5bf60b4a230892060936885d87372f6515d5d8ad78f7b805ad735 [2024-11-17 02:54:00,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 02:54:00,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 02:54:00,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 02:54:00,510 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 02:54:00,510 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 02:54:00,511 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-2.i [2024-11-17 02:54:01,959 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 02:54:02,292 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 02:54:02,293 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-2.i [2024-11-17 02:54:02,314 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbf99b92f/fc98166c1b5142028fb1fb2581551eb8/FLAG9756e9023 [2024-11-17 02:54:02,534 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbf99b92f/fc98166c1b5142028fb1fb2581551eb8 [2024-11-17 02:54:02,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 02:54:02,538 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 02:54:02,539 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 02:54:02,539 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 02:54:02,545 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 02:54:02,546 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 02:54:02" (1/1) ... [2024-11-17 02:54:02,547 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@744b0cfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:54:02, skipping insertion in model container [2024-11-17 02:54:02,547 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 02:54:02" (1/1) ... [2024-11-17 02:54:02,613 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 02:54:03,121 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:03,164 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:03,168 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:03,175 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:03,185 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:03,229 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:03,232 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:03,234 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:03,238 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:03,271 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:03,271 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:03,273 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:03,273 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:03,299 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:03,300 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:03,302 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:03,302 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:03,323 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:03,323 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:03,325 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:03,325 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:03,341 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:03,344 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:03,346 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:03,347 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:03,349 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:03,351 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:03,354 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:03,355 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:03,356 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:03,358 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:03,387 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 02:54:03,397 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-11-17 02:54:03,398 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1041eac9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:54:03, skipping insertion in model container [2024-11-17 02:54:03,398 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 02:54:03,398 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-17 02:54:03,400 INFO L158 Benchmark]: Toolchain (without parser) took 861.77ms. Allocated memory is still 184.5MB. Free memory was 124.9MB in the beginning and 90.1MB in the end (delta: 34.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-17 02:54:03,401 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 184.5MB. Free memory is still 149.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 02:54:03,402 INFO L158 Benchmark]: CACSL2BoogieTranslator took 859.70ms. Allocated memory is still 184.5MB. Free memory was 124.4MB in the beginning and 90.1MB in the end (delta: 34.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-17 02:54:03,403 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 184.5MB. Free memory is still 149.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 859.70ms. Allocated memory is still 184.5MB. Free memory was 124.4MB in the beginning and 90.1MB in the end (delta: 34.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 757]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-2.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 14558cb0aef5bf60b4a230892060936885d87372f6515d5d8ad78f7b805ad735 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 02:54:05,401 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 02:54:05,485 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-17 02:54:05,489 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 02:54:05,490 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 02:54:05,521 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 02:54:05,521 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 02:54:05,522 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 02:54:05,522 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 02:54:05,526 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 02:54:05,526 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 02:54:05,527 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 02:54:05,527 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 02:54:05,527 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 02:54:05,528 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 02:54:05,528 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 02:54:05,528 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 02:54:05,528 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 02:54:05,528 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 02:54:05,529 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 02:54:05,529 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 02:54:05,531 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 02:54:05,531 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 02:54:05,531 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 02:54:05,531 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 02:54:05,532 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-17 02:54:05,532 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 02:54:05,532 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-17 02:54:05,533 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 02:54:05,533 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 02:54:05,533 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 02:54:05,534 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 02:54:05,534 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 02:54:05,534 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 02:54:05,535 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 02:54:05,535 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 02:54:05,535 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 02:54:05,536 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 02:54:05,536 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-17 02:54:05,536 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-17 02:54:05,536 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 02:54:05,536 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 02:54:05,537 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 02:54:05,537 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 02:54:05,537 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14558cb0aef5bf60b4a230892060936885d87372f6515d5d8ad78f7b805ad735 [2024-11-17 02:54:05,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 02:54:05,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 02:54:05,908 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 02:54:05,909 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 02:54:05,909 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 02:54:05,911 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-2.i [2024-11-17 02:54:07,460 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 02:54:07,772 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 02:54:07,773 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-2.i [2024-11-17 02:54:07,799 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/141d573ce/f5a0e27a0e4b4e349d4b2917482e1705/FLAG3fc833c9b [2024-11-17 02:54:07,812 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/141d573ce/f5a0e27a0e4b4e349d4b2917482e1705 [2024-11-17 02:54:07,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 02:54:07,816 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 02:54:07,817 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 02:54:07,817 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 02:54:07,824 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 02:54:07,825 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 02:54:07" (1/1) ... [2024-11-17 02:54:07,825 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ec71258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:54:07, skipping insertion in model container [2024-11-17 02:54:07,826 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 02:54:07" (1/1) ... [2024-11-17 02:54:07,898 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 02:54:08,383 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,424 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,430 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,435 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,441 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,490 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,493 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,498 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,506 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,536 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,537 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,539 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,539 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,562 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,563 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,565 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,566 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,579 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,579 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,581 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,581 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,597 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,597 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,599 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,602 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,603 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,607 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,610 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,611 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,612 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,615 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,625 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 02:54:08,643 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-17 02:54:08,661 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 02:54:08,690 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,703 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,707 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,708 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,714 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,732 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,733 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,736 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,738 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,755 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,756 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,761 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,762 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,770 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,770 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,774 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,775 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,782 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,782 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,784 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,784 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,790 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,790 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,791 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,792 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,792 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,794 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,794 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,795 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,796 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,801 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:54:08,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 02:54:08,811 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 02:54:08,912 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 02:54:08,954 INFO L204 MainTranslator]: Completed translation [2024-11-17 02:54:08,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:54:08 WrapperNode [2024-11-17 02:54:08,955 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 02:54:08,956 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 02:54:08,957 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 02:54:08,957 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 02:54:08,963 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:54:08" (1/1) ... [2024-11-17 02:54:09,012 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:54:08" (1/1) ... [2024-11-17 02:54:09,112 INFO L138 Inliner]: procedures = 180, calls = 558, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2353 [2024-11-17 02:54:09,112 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 02:54:09,113 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 02:54:09,114 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 02:54:09,114 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 02:54:09,123 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:54:08" (1/1) ... [2024-11-17 02:54:09,124 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:54:08" (1/1) ... [2024-11-17 02:54:09,150 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:54:08" (1/1) ... [2024-11-17 02:54:09,323 INFO L175 MemorySlicer]: Split 528 memory accesses to 3 slices as follows [2, 420, 106]. 80 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 94 writes are split as follows [0, 90, 4]. [2024-11-17 02:54:09,327 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:54:08" (1/1) ... [2024-11-17 02:54:09,327 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:54:08" (1/1) ... [2024-11-17 02:54:09,407 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:54:08" (1/1) ... [2024-11-17 02:54:09,427 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:54:08" (1/1) ... [2024-11-17 02:54:09,435 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:54:08" (1/1) ... [2024-11-17 02:54:09,443 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:54:08" (1/1) ... [2024-11-17 02:54:09,455 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 02:54:09,456 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 02:54:09,460 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 02:54:09,460 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 02:54:09,461 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:54:08" (1/1) ... [2024-11-17 02:54:09,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 02:54:09,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 02:54:09,494 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-17 02:54:09,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-17 02:54:09,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-17 02:54:09,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-17 02:54:09,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-17 02:54:09,547 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2024-11-17 02:54:09,547 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2024-11-17 02:54:09,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-17 02:54:09,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-17 02:54:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-17 02:54:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-17 02:54:09,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-17 02:54:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-17 02:54:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-17 02:54:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-17 02:54:09,548 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-17 02:54:09,548 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-17 02:54:09,548 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-17 02:54:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-17 02:54:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 02:54:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-17 02:54:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-17 02:54:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-17 02:54:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-17 02:54:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-17 02:54:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-17 02:54:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-17 02:54:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 02:54:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-17 02:54:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-17 02:54:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-17 02:54:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-17 02:54:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-17 02:54:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-17 02:54:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 02:54:09,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 02:54:09,843 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 02:54:09,846 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 02:54:16,508 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L731: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2024-11-17 02:54:16,777 INFO L? ?]: Removed 2231 outVars from TransFormulas that were not future-live. [2024-11-17 02:54:16,778 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 02:54:16,833 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 02:54:16,833 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 02:54:16,833 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 02:54:16 BoogieIcfgContainer [2024-11-17 02:54:16,834 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 02:54:16,837 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 02:54:16,838 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 02:54:16,840 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 02:54:16,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 02:54:07" (1/3) ... [2024-11-17 02:54:16,841 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59a4c7c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 02:54:16, skipping insertion in model container [2024-11-17 02:54:16,842 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:54:08" (2/3) ... [2024-11-17 02:54:16,843 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59a4c7c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 02:54:16, skipping insertion in model container [2024-11-17 02:54:16,843 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 02:54:16" (3/3) ... [2024-11-17 02:54:16,844 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test10-2.i [2024-11-17 02:54:16,859 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 02:54:16,859 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1091 error locations. [2024-11-17 02:54:16,945 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 02:54:16,953 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;@532bdd66, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 02:54:16,953 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1091 error locations. [2024-11-17 02:54:16,965 INFO L276 IsEmpty]: Start isEmpty. Operand has 2330 states, 1227 states have (on average 2.1361043194784024) internal successors, (2621), 2316 states have internal predecessors, (2621), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-17 02:54:16,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-17 02:54:16,971 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:54:16,971 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-17 02:54:16,972 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1088REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-17 02:54:16,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:54:16,976 INFO L85 PathProgramCache]: Analyzing trace with hash 2659221, now seen corresponding path program 1 times [2024-11-17 02:54:16,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:54:16,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [184269785] [2024-11-17 02:54:16,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:54:16,985 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:54:16,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:54:16,989 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 02:54:16,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-17 02:54:17,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:54:17,208 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 02:54:17,216 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:54:17,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-17 02:54:17,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:54:17,291 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:54:17,292 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:54:17,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [184269785] [2024-11-17 02:54:17,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [184269785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:54:17,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:54:17,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 02:54:17,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48368966] [2024-11-17 02:54:17,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:54:17,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 02:54:17,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:54:17,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 02:54:17,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:54:17,344 INFO L87 Difference]: Start difference. First operand has 2330 states, 1227 states have (on average 2.1361043194784024) internal successors, (2621), 2316 states have internal predecessors, (2621), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:54:20,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:54:20,278 INFO L93 Difference]: Finished difference Result 3007 states and 3191 transitions. [2024-11-17 02:54:20,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 02:54:20,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-17 02:54:20,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:54:20,309 INFO L225 Difference]: With dead ends: 3007 [2024-11-17 02:54:20,310 INFO L226 Difference]: Without dead ends: 3004 [2024-11-17 02:54:20,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:54:20,314 INFO L432 NwaCegarLoop]: 1449 mSDtfsCounter, 2191 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 1485 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2201 SdHoareTripleChecker+Valid, 1940 SdHoareTripleChecker+Invalid, 1510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-17 02:54:20,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2201 Valid, 1940 Invalid, 1510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1485 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-17 02:54:20,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3004 states. [2024-11-17 02:54:20,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3004 to 2476. [2024-11-17 02:54:20,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2476 states, 1401 states have (on average 1.9821556031406138) internal successors, (2777), 2460 states have internal predecessors, (2777), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-17 02:54:20,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2476 states to 2476 states and 2809 transitions. [2024-11-17 02:54:20,439 INFO L78 Accepts]: Start accepts. Automaton has 2476 states and 2809 transitions. Word has length 3 [2024-11-17 02:54:20,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:54:20,439 INFO L471 AbstractCegarLoop]: Abstraction has 2476 states and 2809 transitions. [2024-11-17 02:54:20,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:54:20,440 INFO L276 IsEmpty]: Start isEmpty. Operand 2476 states and 2809 transitions. [2024-11-17 02:54:20,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-17 02:54:20,440 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:54:20,440 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-17 02:54:20,445 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-17 02:54:20,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:54:20,643 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1089REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-17 02:54:20,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:54:20,644 INFO L85 PathProgramCache]: Analyzing trace with hash 2659222, now seen corresponding path program 1 times [2024-11-17 02:54:20,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:54:20,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [966087873] [2024-11-17 02:54:20,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:54:20,645 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:54:20,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:54:20,646 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 02:54:20,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-17 02:54:20,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:54:20,803 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 02:54:20,806 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:54:20,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-17 02:54:20,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:54:20,830 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:54:20,830 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:54:20,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [966087873] [2024-11-17 02:54:20,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [966087873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:54:20,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:54:20,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 02:54:20,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264657383] [2024-11-17 02:54:20,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:54:20,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 02:54:20,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:54:20,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 02:54:20,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:54:20,836 INFO L87 Difference]: Start difference. First operand 2476 states and 2809 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:54:24,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:54:24,731 INFO L93 Difference]: Finished difference Result 3302 states and 3715 transitions. [2024-11-17 02:54:24,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 02:54:24,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-17 02:54:24,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:54:24,743 INFO L225 Difference]: With dead ends: 3302 [2024-11-17 02:54:24,744 INFO L226 Difference]: Without dead ends: 3302 [2024-11-17 02:54:24,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:54:24,745 INFO L432 NwaCegarLoop]: 2089 mSDtfsCounter, 900 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 1427 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 3447 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-17 02:54:24,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [903 Valid, 3447 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1427 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-17 02:54:24,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3302 states. [2024-11-17 02:54:24,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3302 to 2974. [2024-11-17 02:54:24,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2974 states, 1897 states have (on average 1.9383236689509753) internal successors, (3677), 2955 states have internal predecessors, (3677), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-17 02:54:24,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2974 states to 2974 states and 3715 transitions. [2024-11-17 02:54:24,846 INFO L78 Accepts]: Start accepts. Automaton has 2974 states and 3715 transitions. Word has length 3 [2024-11-17 02:54:24,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:54:24,846 INFO L471 AbstractCegarLoop]: Abstraction has 2974 states and 3715 transitions. [2024-11-17 02:54:24,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:54:24,846 INFO L276 IsEmpty]: Start isEmpty. Operand 2974 states and 3715 transitions. [2024-11-17 02:54:24,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-17 02:54:24,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:54:24,847 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:54:24,853 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-17 02:54:25,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:54:25,048 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1085REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-17 02:54:25,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:54:25,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1141813659, now seen corresponding path program 1 times [2024-11-17 02:54:25,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:54:25,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1136729233] [2024-11-17 02:54:25,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:54:25,050 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:54:25,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:54:25,054 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 02:54:25,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-17 02:54:25,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:54:25,232 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-17 02:54:25,235 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:54:25,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-17 02:54:25,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-17 02:54:25,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-17 02:54:25,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-17 02:54:25,350 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-17 02:54:25,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-17 02:54:25,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:54:25,373 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:54:25,373 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:54:25,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1136729233] [2024-11-17 02:54:25,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1136729233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:54:25,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:54:25,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:54:25,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271735178] [2024-11-17 02:54:25,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:54:25,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:54:25,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:54:25,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:54:25,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:54:25,377 INFO L87 Difference]: Start difference. First operand 2974 states and 3715 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:54:31,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:54:31,580 INFO L93 Difference]: Finished difference Result 5287 states and 6178 transitions. [2024-11-17 02:54:31,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 02:54:31,581 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-17 02:54:31,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:54:31,598 INFO L225 Difference]: With dead ends: 5287 [2024-11-17 02:54:31,599 INFO L226 Difference]: Without dead ends: 5287 [2024-11-17 02:54:31,599 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:54:31,601 INFO L432 NwaCegarLoop]: 1042 mSDtfsCounter, 4419 mSDsluCounter, 1484 mSDsCounter, 0 mSdLazyCounter, 2791 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4428 SdHoareTripleChecker+Valid, 2526 SdHoareTripleChecker+Invalid, 2831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-17 02:54:31,601 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4428 Valid, 2526 Invalid, 2831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2791 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-17 02:54:31,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5287 states. [2024-11-17 02:54:31,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5287 to 3717. [2024-11-17 02:54:31,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3717 states, 2640 states have (on average 1.971969696969697) internal successors, (5206), 3692 states have internal predecessors, (5206), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-17 02:54:31,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3717 states to 3717 states and 5256 transitions. [2024-11-17 02:54:31,708 INFO L78 Accepts]: Start accepts. Automaton has 3717 states and 5256 transitions. Word has length 8 [2024-11-17 02:54:31,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:54:31,708 INFO L471 AbstractCegarLoop]: Abstraction has 3717 states and 5256 transitions. [2024-11-17 02:54:31,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:54:31,709 INFO L276 IsEmpty]: Start isEmpty. Operand 3717 states and 5256 transitions. [2024-11-17 02:54:31,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-17 02:54:31,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:54:31,710 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:54:31,722 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-17 02:54:31,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:54:31,911 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1082REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-17 02:54:31,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:54:31,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1036487627, now seen corresponding path program 1 times [2024-11-17 02:54:31,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:54:31,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [156966908] [2024-11-17 02:54:31,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:54:31,912 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:54:31,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:54:31,916 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 02:54:31,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-17 02:54:32,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:54:32,088 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 02:54:32,091 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:54:32,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-17 02:54:32,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:54:32,107 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:54:32,107 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:54:32,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [156966908] [2024-11-17 02:54:32,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [156966908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:54:32,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:54:32,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 02:54:32,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416448315] [2024-11-17 02:54:32,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:54:32,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 02:54:32,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:54:32,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 02:54:32,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:54:32,109 INFO L87 Difference]: Start difference. First operand 3717 states and 5256 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:54:34,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:54:34,555 INFO L93 Difference]: Finished difference Result 4454 states and 5951 transitions. [2024-11-17 02:54:34,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 02:54:34,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-17 02:54:34,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:54:34,569 INFO L225 Difference]: With dead ends: 4454 [2024-11-17 02:54:34,569 INFO L226 Difference]: Without dead ends: 4454 [2024-11-17 02:54:34,570 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:54:34,570 INFO L432 NwaCegarLoop]: 2298 mSDtfsCounter, 1963 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 1523 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1973 SdHoareTripleChecker+Valid, 3004 SdHoareTripleChecker+Invalid, 1622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-17 02:54:34,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1973 Valid, 3004 Invalid, 1622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1523 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-17 02:54:34,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2024-11-17 02:54:34,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 3625. [2024-11-17 02:54:34,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3625 states, 2640 states have (on average 1.8905303030303031) internal successors, (4991), 3600 states have internal predecessors, (4991), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-17 02:54:34,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3625 states to 3625 states and 5041 transitions. [2024-11-17 02:54:34,654 INFO L78 Accepts]: Start accepts. Automaton has 3625 states and 5041 transitions. Word has length 9 [2024-11-17 02:54:34,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:54:34,654 INFO L471 AbstractCegarLoop]: Abstraction has 3625 states and 5041 transitions. [2024-11-17 02:54:34,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:54:34,655 INFO L276 IsEmpty]: Start isEmpty. Operand 3625 states and 5041 transitions. [2024-11-17 02:54:34,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-17 02:54:34,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:54:34,655 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:54:34,661 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-17 02:54:34,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:54:34,856 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1083REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-17 02:54:34,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:54:34,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1036487628, now seen corresponding path program 1 times [2024-11-17 02:54:34,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:54:34,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1853065375] [2024-11-17 02:54:34,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:54:34,858 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:54:34,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:54:34,861 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 02:54:34,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-17 02:54:35,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:54:35,025 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 02:54:35,027 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:54:35,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-17 02:54:35,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:54:35,055 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:54:35,055 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:54:35,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1853065375] [2024-11-17 02:54:35,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1853065375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:54:35,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:54:35,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 02:54:35,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657511308] [2024-11-17 02:54:35,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:54:35,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 02:54:35,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:54:35,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 02:54:35,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:54:35,057 INFO L87 Difference]: Start difference. First operand 3625 states and 5041 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:54:38,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:54:38,332 INFO L93 Difference]: Finished difference Result 5494 states and 7565 transitions. [2024-11-17 02:54:38,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 02:54:38,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-17 02:54:38,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:54:38,354 INFO L225 Difference]: With dead ends: 5494 [2024-11-17 02:54:38,355 INFO L226 Difference]: Without dead ends: 5494 [2024-11-17 02:54:38,355 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:54:38,357 INFO L432 NwaCegarLoop]: 2659 mSDtfsCounter, 1458 mSDsluCounter, 1154 mSDsCounter, 0 mSdLazyCounter, 1593 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1462 SdHoareTripleChecker+Valid, 3813 SdHoareTripleChecker+Invalid, 1618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-17 02:54:38,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1462 Valid, 3813 Invalid, 1618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1593 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-17 02:54:38,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5494 states. [2024-11-17 02:54:38,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5494 to 3983. [2024-11-17 02:54:38,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3983 states, 3008 states have (on average 1.8766622340425532) internal successors, (5645), 3958 states have internal predecessors, (5645), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-17 02:54:38,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3983 states to 3983 states and 5695 transitions. [2024-11-17 02:54:38,452 INFO L78 Accepts]: Start accepts. Automaton has 3983 states and 5695 transitions. Word has length 9 [2024-11-17 02:54:38,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:54:38,452 INFO L471 AbstractCegarLoop]: Abstraction has 3983 states and 5695 transitions. [2024-11-17 02:54:38,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:54:38,453 INFO L276 IsEmpty]: Start isEmpty. Operand 3983 states and 5695 transitions. [2024-11-17 02:54:38,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-17 02:54:38,453 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:54:38,453 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:54:38,457 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-17 02:54:38,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:54:38,654 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr450REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-17 02:54:38,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:54:38,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1439188254, now seen corresponding path program 1 times [2024-11-17 02:54:38,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:54:38,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [811856220] [2024-11-17 02:54:38,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:54:38,656 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 [2024-11-17 02:54:38,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:54:38,657 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 02:54:38,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-17 02:54:38,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:54:38,809 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 02:54:38,811 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:54:38,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:54:38,819 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:54:38,819 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:54:38,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [811856220] [2024-11-17 02:54:38,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [811856220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:54:38,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:54:38,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:54:38,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310793526] [2024-11-17 02:54:38,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:54:38,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 02:54:38,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:54:38,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 02:54:38,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:54:38,820 INFO L87 Difference]: Start difference. First operand 3983 states and 5695 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:54:38,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:54:38,864 INFO L93 Difference]: Finished difference Result 3923 states and 5609 transitions. [2024-11-17 02:54:38,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 02:54:38,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-17 02:54:38,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:54:38,882 INFO L225 Difference]: With dead ends: 3923 [2024-11-17 02:54:38,882 INFO L226 Difference]: Without dead ends: 3923 [2024-11-17 02:54:38,883 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:54:38,883 INFO L432 NwaCegarLoop]: 2281 mSDtfsCounter, 71 mSDsluCounter, 2217 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 4498 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 02:54:38,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 4498 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 02:54:38,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3923 states. [2024-11-17 02:54:38,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3923 to 3923. [2024-11-17 02:54:38,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3923 states, 2972 states have (on average 1.8704576043068641) internal successors, (5559), 3898 states have internal predecessors, (5559), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-17 02:54:38,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3923 states to 3923 states and 5609 transitions. [2024-11-17 02:54:38,952 INFO L78 Accepts]: Start accepts. Automaton has 3923 states and 5609 transitions. Word has length 13 [2024-11-17 02:54:38,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:54:38,952 INFO L471 AbstractCegarLoop]: Abstraction has 3923 states and 5609 transitions. [2024-11-17 02:54:38,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:54:38,953 INFO L276 IsEmpty]: Start isEmpty. Operand 3923 states and 5609 transitions. [2024-11-17 02:54:38,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-17 02:54:38,953 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:54:38,954 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:54:38,958 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-17 02:54:39,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:54:39,154 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr426REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-17 02:54:39,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:54:39,155 INFO L85 PathProgramCache]: Analyzing trace with hash -80474634, now seen corresponding path program 1 times [2024-11-17 02:54:39,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:54:39,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [28090339] [2024-11-17 02:54:39,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:54:39,155 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:54:39,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:54:39,159 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 02:54:39,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-17 02:54:39,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:54:39,329 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 02:54:39,331 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:54:39,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:54:39,353 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:54:39,353 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:54:39,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [28090339] [2024-11-17 02:54:39,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [28090339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:54:39,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:54:39,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 02:54:39,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415821389] [2024-11-17 02:54:39,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:54:39,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:54:39,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:54:39,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:54:39,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:54:39,355 INFO L87 Difference]: Start difference. First operand 3923 states and 5609 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2024-11-17 02:54:39,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:54:39,443 INFO L93 Difference]: Finished difference Result 3893 states and 5551 transitions. [2024-11-17 02:54:39,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 02:54:39,443 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 [2024-11-17 02:54:39,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:54:39,460 INFO L225 Difference]: With dead ends: 3893 [2024-11-17 02:54:39,460 INFO L226 Difference]: Without dead ends: 3893 [2024-11-17 02:54:39,460 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:54:39,462 INFO L432 NwaCegarLoop]: 2236 mSDtfsCounter, 48 mSDsluCounter, 4445 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 6681 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 02:54:39,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 6681 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 02:54:39,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3893 states. [2024-11-17 02:54:39,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3893 to 3893. [2024-11-17 02:54:39,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3893 states, 2956 states have (on average 1.8609607577807847) internal successors, (5501), 3868 states have internal predecessors, (5501), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-17 02:54:39,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3893 states to 3893 states and 5551 transitions. [2024-11-17 02:54:39,565 INFO L78 Accepts]: Start accepts. Automaton has 3893 states and 5551 transitions. Word has length 15 [2024-11-17 02:54:39,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:54:39,565 INFO L471 AbstractCegarLoop]: Abstraction has 3893 states and 5551 transitions. [2024-11-17 02:54:39,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2024-11-17 02:54:39,566 INFO L276 IsEmpty]: Start isEmpty. Operand 3893 states and 5551 transitions. [2024-11-17 02:54:39,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-17 02:54:39,566 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:54:39,566 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:54:39,573 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2024-11-17 02:54:39,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:54:39,768 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1072REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-17 02:54:39,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:54:39,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1260605941, now seen corresponding path program 1 times [2024-11-17 02:54:39,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:54:39,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [439027469] [2024-11-17 02:54:39,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:54:39,769 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:54:39,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:54:39,773 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 02:54:39,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-17 02:54:39,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:54:39,993 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 02:54:39,995 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:54:40,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:54:40,013 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:54:40,014 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:54:40,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [439027469] [2024-11-17 02:54:40,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [439027469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:54:40,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:54:40,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:54:40,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62365495] [2024-11-17 02:54:40,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:54:40,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 02:54:40,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:54:40,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 02:54:40,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:54:40,016 INFO L87 Difference]: Start difference. First operand 3893 states and 5551 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:54:40,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:54:40,059 INFO L93 Difference]: Finished difference Result 3833 states and 5465 transitions. [2024-11-17 02:54:40,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 02:54:40,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2024-11-17 02:54:40,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:54:40,067 INFO L225 Difference]: With dead ends: 3833 [2024-11-17 02:54:40,068 INFO L226 Difference]: Without dead ends: 3833 [2024-11-17 02:54:40,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:54:40,070 INFO L432 NwaCegarLoop]: 2203 mSDtfsCounter, 71 mSDsluCounter, 2139 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 4342 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 02:54:40,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 4342 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 02:54:40,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3833 states. [2024-11-17 02:54:40,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3833 to 3833. [2024-11-17 02:54:40,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3833 states, 2920 states have (on average 1.8544520547945205) internal successors, (5415), 3808 states have internal predecessors, (5415), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-17 02:54:40,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3833 states to 3833 states and 5465 transitions. [2024-11-17 02:54:40,134 INFO L78 Accepts]: Start accepts. Automaton has 3833 states and 5465 transitions. Word has length 22 [2024-11-17 02:54:40,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:54:40,134 INFO L471 AbstractCegarLoop]: Abstraction has 3833 states and 5465 transitions. [2024-11-17 02:54:40,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:54:40,134 INFO L276 IsEmpty]: Start isEmpty. Operand 3833 states and 5465 transitions. [2024-11-17 02:54:40,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-17 02:54:40,135 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:54:40,135 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:54:40,142 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 [2024-11-17 02:54:40,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:54:40,340 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr764REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-17 02:54:40,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:54:40,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1635820172, now seen corresponding path program 1 times [2024-11-17 02:54:40,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:54:40,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [262008011] [2024-11-17 02:54:40,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:54:40,342 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:54:40,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:54:40,345 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 02:54:40,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-17 02:54:40,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:54:40,538 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 02:54:40,540 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:54:40,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:54:40,551 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:54:40,551 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:54:40,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [262008011] [2024-11-17 02:54:40,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [262008011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:54:40,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:54:40,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:54:40,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598422201] [2024-11-17 02:54:40,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:54:40,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 02:54:40,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:54:40,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 02:54:40,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:54:40,553 INFO L87 Difference]: Start difference. First operand 3833 states and 5465 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:54:40,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:54:40,591 INFO L93 Difference]: Finished difference Result 3701 states and 5207 transitions. [2024-11-17 02:54:40,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 02:54:40,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2024-11-17 02:54:40,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:54:40,599 INFO L225 Difference]: With dead ends: 3701 [2024-11-17 02:54:40,599 INFO L226 Difference]: Without dead ends: 3701 [2024-11-17 02:54:40,599 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:54:40,600 INFO L432 NwaCegarLoop]: 2160 mSDtfsCounter, 71 mSDsluCounter, 2096 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 4256 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 02:54:40,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 4256 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 02:54:40,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3701 states. [2024-11-17 02:54:40,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3701 to 3701. [2024-11-17 02:54:40,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3701 states, 2812 states have (on average 1.8339260312944523) internal successors, (5157), 3676 states have internal predecessors, (5157), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-17 02:54:40,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3701 states to 3701 states and 5207 transitions. [2024-11-17 02:54:40,678 INFO L78 Accepts]: Start accepts. Automaton has 3701 states and 5207 transitions. Word has length 22 [2024-11-17 02:54:40,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:54:40,679 INFO L471 AbstractCegarLoop]: Abstraction has 3701 states and 5207 transitions. [2024-11-17 02:54:40,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:54:40,679 INFO L276 IsEmpty]: Start isEmpty. Operand 3701 states and 5207 transitions. [2024-11-17 02:54:40,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-17 02:54:40,680 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:54:40,680 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] [2024-11-17 02:54:40,687 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 [2024-11-17 02:54:40,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:54:40,881 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1048REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-17 02:54:40,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:54:40,882 INFO L85 PathProgramCache]: Analyzing trace with hash -261521217, now seen corresponding path program 1 times [2024-11-17 02:54:40,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:54:40,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1831645538] [2024-11-17 02:54:40,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:54:40,882 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:54:40,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:54:40,885 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 02:54:40,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-17 02:54:41,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:54:41,099 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 02:54:41,102 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:54:41,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:54:41,132 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:54:41,133 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:54:41,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1831645538] [2024-11-17 02:54:41,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1831645538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:54:41,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:54:41,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 02:54:41,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983747966] [2024-11-17 02:54:41,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:54:41,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:54:41,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:54:41,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:54:41,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:54:41,134 INFO L87 Difference]: Start difference. First operand 3701 states and 5207 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:54:41,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:54:41,217 INFO L93 Difference]: Finished difference Result 3671 states and 5149 transitions. [2024-11-17 02:54:41,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 02:54:41,218 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 24 [2024-11-17 02:54:41,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:54:41,223 INFO L225 Difference]: With dead ends: 3671 [2024-11-17 02:54:41,224 INFO L226 Difference]: Without dead ends: 3671 [2024-11-17 02:54:41,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:54:41,225 INFO L432 NwaCegarLoop]: 2115 mSDtfsCounter, 48 mSDsluCounter, 4203 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 6318 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 02:54:41,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 6318 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 02:54:41,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3671 states. [2024-11-17 02:54:41,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3671 to 3671. [2024-11-17 02:54:41,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3671 states, 2796 states have (on average 1.8236766809728182) internal successors, (5099), 3646 states have internal predecessors, (5099), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-17 02:54:41,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3671 states to 3671 states and 5149 transitions. [2024-11-17 02:54:41,267 INFO L78 Accepts]: Start accepts. Automaton has 3671 states and 5149 transitions. Word has length 24 [2024-11-17 02:54:41,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:54:41,267 INFO L471 AbstractCegarLoop]: Abstraction has 3671 states and 5149 transitions. [2024-11-17 02:54:41,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:54:41,268 INFO L276 IsEmpty]: Start isEmpty. Operand 3671 states and 5149 transitions. [2024-11-17 02:54:41,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-17 02:54:41,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:54:41,270 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] [2024-11-17 02:54:41,275 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-11-17 02:54:41,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:54:41,471 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr740REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-17 02:54:41,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:54:41,471 INFO L85 PathProgramCache]: Analyzing trace with hash 65144512, now seen corresponding path program 1 times [2024-11-17 02:54:41,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:54:41,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1686557158] [2024-11-17 02:54:41,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:54:41,472 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:54:41,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:54:41,475 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 02:54:41,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-17 02:54:41,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:54:41,658 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 02:54:41,660 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:54:41,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:54:41,675 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:54:41,675 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:54:41,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1686557158] [2024-11-17 02:54:41,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1686557158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:54:41,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:54:41,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 02:54:41,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810771410] [2024-11-17 02:54:41,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:54:41,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:54:41,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:54:41,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:54:41,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:54:41,677 INFO L87 Difference]: Start difference. First operand 3671 states and 5149 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:54:41,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:54:41,736 INFO L93 Difference]: Finished difference Result 3609 states and 4975 transitions. [2024-11-17 02:54:41,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 02:54:41,737 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 24 [2024-11-17 02:54:41,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:54:41,742 INFO L225 Difference]: With dead ends: 3609 [2024-11-17 02:54:41,743 INFO L226 Difference]: Without dead ends: 3609 [2024-11-17 02:54:41,743 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:54:41,743 INFO L432 NwaCegarLoop]: 2080 mSDtfsCounter, 48 mSDsluCounter, 4133 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 6213 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 02:54:41,744 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 6213 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 02:54:41,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3609 states. [2024-11-17 02:54:41,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3609 to 3609. [2024-11-17 02:54:41,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3609 states, 2748 states have (on average 1.792212518195051) internal successors, (4925), 3584 states have internal predecessors, (4925), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-17 02:54:41,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3609 states to 3609 states and 4975 transitions. [2024-11-17 02:54:41,798 INFO L78 Accepts]: Start accepts. Automaton has 3609 states and 4975 transitions. Word has length 24 [2024-11-17 02:54:41,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:54:41,798 INFO L471 AbstractCegarLoop]: Abstraction has 3609 states and 4975 transitions. [2024-11-17 02:54:41,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:54:41,799 INFO L276 IsEmpty]: Start isEmpty. Operand 3609 states and 4975 transitions. [2024-11-17 02:54:41,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-17 02:54:41,801 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:54:41,801 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] [2024-11-17 02:54:41,806 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 [2024-11-17 02:54:42,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:54:42,002 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr412REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-17 02:54:42,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:54:42,002 INFO L85 PathProgramCache]: Analyzing trace with hash 933660620, now seen corresponding path program 1 times [2024-11-17 02:54:42,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:54:42,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1004959861] [2024-11-17 02:54:42,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:54:42,003 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:54:42,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:54:42,006 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 02:54:42,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-17 02:54:42,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:54:42,189 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 02:54:42,192 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:54:42,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-17 02:54:42,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:54:42,275 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:54:42,275 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:54:42,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1004959861] [2024-11-17 02:54:42,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1004959861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:54:42,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:54:42,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:54:42,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446995489] [2024-11-17 02:54:42,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:54:42,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:54:42,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:54:42,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:54:42,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:54:42,276 INFO L87 Difference]: Start difference. First operand 3609 states and 4975 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:54:44,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:54:44,748 INFO L93 Difference]: Finished difference Result 4066 states and 5339 transitions. [2024-11-17 02:54:44,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 02:54:44,748 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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 29 [2024-11-17 02:54:44,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:54:44,756 INFO L225 Difference]: With dead ends: 4066 [2024-11-17 02:54:44,756 INFO L226 Difference]: Without dead ends: 4066 [2024-11-17 02:54:44,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:54:44,757 INFO L432 NwaCegarLoop]: 1297 mSDtfsCounter, 1883 mSDsluCounter, 1616 mSDsCounter, 0 mSdLazyCounter, 2108 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1893 SdHoareTripleChecker+Valid, 2913 SdHoareTripleChecker+Invalid, 2119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-17 02:54:44,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1893 Valid, 2913 Invalid, 2119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2108 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-17 02:54:44,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4066 states. [2024-11-17 02:54:44,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4066 to 3605. [2024-11-17 02:54:44,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3605 states, 2748 states have (on average 1.789301310043668) internal successors, (4917), 3580 states have internal predecessors, (4917), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-17 02:54:44,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3605 states to 3605 states and 4967 transitions. [2024-11-17 02:54:44,801 INFO L78 Accepts]: Start accepts. Automaton has 3605 states and 4967 transitions. Word has length 29 [2024-11-17 02:54:44,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:54:44,801 INFO L471 AbstractCegarLoop]: Abstraction has 3605 states and 4967 transitions. [2024-11-17 02:54:44,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:54:44,802 INFO L276 IsEmpty]: Start isEmpty. Operand 3605 states and 4967 transitions. [2024-11-17 02:54:44,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-17 02:54:44,802 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:54:44,802 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] [2024-11-17 02:54:44,807 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 [2024-11-17 02:54:45,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:54:45,004 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr413REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-17 02:54:45,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:54:45,004 INFO L85 PathProgramCache]: Analyzing trace with hash 933660621, now seen corresponding path program 1 times [2024-11-17 02:54:45,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:54:45,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [291237446] [2024-11-17 02:54:45,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:54:45,005 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:54:45,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:54:45,008 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 02:54:45,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-17 02:54:45,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:54:45,183 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 02:54:45,186 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:54:45,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-17 02:54:45,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:54:45,332 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:54:45,332 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:54:45,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [291237446] [2024-11-17 02:54:45,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [291237446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:54:45,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:54:45,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:54:45,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583874046] [2024-11-17 02:54:45,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:54:45,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:54:45,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:54:45,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:54:45,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:54:45,335 INFO L87 Difference]: Start difference. First operand 3605 states and 4967 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:54:48,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:54:48,848 INFO L93 Difference]: Finished difference Result 4364 states and 5798 transitions. [2024-11-17 02:54:48,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 02:54:48,848 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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 29 [2024-11-17 02:54:48,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:54:48,854 INFO L225 Difference]: With dead ends: 4364 [2024-11-17 02:54:48,854 INFO L226 Difference]: Without dead ends: 4364 [2024-11-17 02:54:48,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:54:48,855 INFO L432 NwaCegarLoop]: 1791 mSDtfsCounter, 830 mSDsluCounter, 2282 mSDsCounter, 0 mSdLazyCounter, 2219 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 833 SdHoareTripleChecker+Valid, 4073 SdHoareTripleChecker+Invalid, 2222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-17 02:54:48,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [833 Valid, 4073 Invalid, 2222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2219 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-17 02:54:48,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4364 states. [2024-11-17 02:54:48,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4364 to 3643. [2024-11-17 02:54:48,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3643 states, 2786 states have (on average 1.7803302225412778) internal successors, (4960), 3618 states have internal predecessors, (4960), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-17 02:54:48,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3643 states to 3643 states and 5010 transitions. [2024-11-17 02:54:48,902 INFO L78 Accepts]: Start accepts. Automaton has 3643 states and 5010 transitions. Word has length 29 [2024-11-17 02:54:48,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:54:48,902 INFO L471 AbstractCegarLoop]: Abstraction has 3643 states and 5010 transitions. [2024-11-17 02:54:48,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:54:48,902 INFO L276 IsEmpty]: Start isEmpty. Operand 3643 states and 5010 transitions. [2024-11-17 02:54:48,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-17 02:54:48,903 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:54:48,903 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] [2024-11-17 02:54:48,908 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-11-17 02:54:49,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:54:49,107 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1034REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-17 02:54:49,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:54:49,108 INFO L85 PathProgramCache]: Analyzing trace with hash 752359413, now seen corresponding path program 1 times [2024-11-17 02:54:49,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:54:49,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [686575339] [2024-11-17 02:54:49,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:54:49,109 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:54:49,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:54:49,110 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 02:54:49,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-17 02:54:49,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:54:49,304 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 02:54:49,306 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:54:49,311 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-17 02:54:49,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:54:49,383 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:54:49,383 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:54:49,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [686575339] [2024-11-17 02:54:49,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [686575339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:54:49,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:54:49,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:54:49,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921423243] [2024-11-17 02:54:49,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:54:49,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:54:49,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:54:49,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:54:49,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:54:49,384 INFO L87 Difference]: Start difference. First operand 3643 states and 5010 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:54:52,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:54:52,239 INFO L93 Difference]: Finished difference Result 4366 states and 5797 transitions. [2024-11-17 02:54:52,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 02:54:52,240 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 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 38 [2024-11-17 02:54:52,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:54:52,245 INFO L225 Difference]: With dead ends: 4366 [2024-11-17 02:54:52,245 INFO L226 Difference]: Without dead ends: 4366 [2024-11-17 02:54:52,245 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:54:52,246 INFO L432 NwaCegarLoop]: 2088 mSDtfsCounter, 1734 mSDsluCounter, 2285 mSDsCounter, 0 mSdLazyCounter, 2603 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1744 SdHoareTripleChecker+Valid, 4373 SdHoareTripleChecker+Invalid, 2614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-17 02:54:52,246 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1744 Valid, 4373 Invalid, 2614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2603 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-17 02:54:52,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4366 states. [2024-11-17 02:54:52,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4366 to 3639. [2024-11-17 02:54:52,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3639 states, 2786 states have (on average 1.7774587221823404) internal successors, (4952), 3614 states have internal predecessors, (4952), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-17 02:54:52,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3639 states to 3639 states and 5002 transitions. [2024-11-17 02:54:52,283 INFO L78 Accepts]: Start accepts. Automaton has 3639 states and 5002 transitions. Word has length 38 [2024-11-17 02:54:52,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:54:52,283 INFO L471 AbstractCegarLoop]: Abstraction has 3639 states and 5002 transitions. [2024-11-17 02:54:52,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:54:52,284 INFO L276 IsEmpty]: Start isEmpty. Operand 3639 states and 5002 transitions. [2024-11-17 02:54:52,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-17 02:54:52,284 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:54:52,284 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] [2024-11-17 02:54:52,291 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-11-17 02:54:52,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:54:52,486 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1035REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-17 02:54:52,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:54:52,486 INFO L85 PathProgramCache]: Analyzing trace with hash 752359414, now seen corresponding path program 1 times [2024-11-17 02:54:52,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:54:52,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1734900682] [2024-11-17 02:54:52,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:54:52,487 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:54:52,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:54:52,490 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 02:54:52,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-17 02:54:52,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:54:52,718 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 02:54:52,721 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:54:52,728 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-17 02:54:52,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:54:52,934 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:54:52,934 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:54:52,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1734900682] [2024-11-17 02:54:52,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1734900682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:54:52,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:54:52,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:54:52,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001187312] [2024-11-17 02:54:52,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:54:52,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:54:52,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:54:52,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:54:52,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:54:52,936 INFO L87 Difference]: Start difference. First operand 3639 states and 5002 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:54:57,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:54:57,118 INFO L93 Difference]: Finished difference Result 5022 states and 6720 transitions. [2024-11-17 02:54:57,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 02:54:57,119 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 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 38 [2024-11-17 02:54:57,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:54:57,125 INFO L225 Difference]: With dead ends: 5022 [2024-11-17 02:54:57,125 INFO L226 Difference]: Without dead ends: 5022 [2024-11-17 02:54:57,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:54:57,126 INFO L432 NwaCegarLoop]: 2440 mSDtfsCounter, 1225 mSDsluCounter, 2704 mSDsCounter, 0 mSdLazyCounter, 2652 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 5144 SdHoareTripleChecker+Invalid, 2655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-17 02:54:57,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1229 Valid, 5144 Invalid, 2655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2652 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-17 02:54:57,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5022 states. [2024-11-17 02:54:57,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5022 to 3635. [2024-11-17 02:54:57,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3635 states, 2786 states have (on average 1.7745872218234027) internal successors, (4944), 3610 states have internal predecessors, (4944), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-17 02:54:57,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3635 states to 3635 states and 4994 transitions. [2024-11-17 02:54:57,177 INFO L78 Accepts]: Start accepts. Automaton has 3635 states and 4994 transitions. Word has length 38 [2024-11-17 02:54:57,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:54:57,178 INFO L471 AbstractCegarLoop]: Abstraction has 3635 states and 4994 transitions. [2024-11-17 02:54:57,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:54:57,178 INFO L276 IsEmpty]: Start isEmpty. Operand 3635 states and 4994 transitions. [2024-11-17 02:54:57,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-17 02:54:57,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:54:57,179 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] [2024-11-17 02:54:57,186 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-11-17 02:54:57,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:54:57,384 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr726REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-17 02:54:57,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:54:57,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1896749174, now seen corresponding path program 1 times [2024-11-17 02:54:57,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:54:57,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2014303504] [2024-11-17 02:54:57,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:54:57,385 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:54:57,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:54:57,386 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 02:54:57,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-11-17 02:54:57,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:54:57,586 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 02:54:57,588 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:54:57,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-17 02:54:57,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:54:57,667 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:54:57,667 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:54:57,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2014303504] [2024-11-17 02:54:57,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2014303504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:54:57,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:54:57,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:54:57,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452409317] [2024-11-17 02:54:57,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:54:57,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:54:57,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:54:57,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:54:57,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:54:57,668 INFO L87 Difference]: Start difference. First operand 3635 states and 4994 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:55:00,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:55:00,691 INFO L93 Difference]: Finished difference Result 4374 states and 5781 transitions. [2024-11-17 02:55:00,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 02:55:00,691 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 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 38 [2024-11-17 02:55:00,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:55:00,712 INFO L225 Difference]: With dead ends: 4374 [2024-11-17 02:55:00,712 INFO L226 Difference]: Without dead ends: 4374 [2024-11-17 02:55:00,712 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:55:00,712 INFO L432 NwaCegarLoop]: 2084 mSDtfsCounter, 1726 mSDsluCounter, 2281 mSDsCounter, 0 mSdLazyCounter, 2595 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1736 SdHoareTripleChecker+Valid, 4365 SdHoareTripleChecker+Invalid, 2606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-17 02:55:00,713 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1736 Valid, 4365 Invalid, 2606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2595 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-17 02:55:00,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4374 states. [2024-11-17 02:55:00,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4374 to 3631. [2024-11-17 02:55:00,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3631 states, 2786 states have (on average 1.76597272074659) internal successors, (4920), 3606 states have internal predecessors, (4920), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-17 02:55:00,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3631 states to 3631 states and 4970 transitions. [2024-11-17 02:55:00,750 INFO L78 Accepts]: Start accepts. Automaton has 3631 states and 4970 transitions. Word has length 38 [2024-11-17 02:55:00,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:55:00,750 INFO L471 AbstractCegarLoop]: Abstraction has 3631 states and 4970 transitions. [2024-11-17 02:55:00,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:55:00,750 INFO L276 IsEmpty]: Start isEmpty. Operand 3631 states and 4970 transitions. [2024-11-17 02:55:00,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-17 02:55:00,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:55:00,751 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] [2024-11-17 02:55:00,758 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2024-11-17 02:55:00,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:55:00,952 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr727REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-17 02:55:00,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:55:00,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1896749175, now seen corresponding path program 1 times [2024-11-17 02:55:00,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:55:00,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1255552920] [2024-11-17 02:55:00,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:55:00,954 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:55:00,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:55:00,957 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 02:55:00,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-17 02:55:01,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:55:01,188 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 02:55:01,191 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:55:01,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-17 02:55:01,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:55:01,366 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:55:01,366 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:55:01,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1255552920] [2024-11-17 02:55:01,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1255552920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:55:01,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:55:01,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:55:01,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706381165] [2024-11-17 02:55:01,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:55:01,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:55:01,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:55:01,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:55:01,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:55:01,368 INFO L87 Difference]: Start difference. First operand 3631 states and 4970 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:55:05,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:55:05,585 INFO L93 Difference]: Finished difference Result 5010 states and 6688 transitions. [2024-11-17 02:55:05,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 02:55:05,585 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 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 38 [2024-11-17 02:55:05,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:55:05,592 INFO L225 Difference]: With dead ends: 5010 [2024-11-17 02:55:05,592 INFO L226 Difference]: Without dead ends: 5010 [2024-11-17 02:55:05,592 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:55:05,593 INFO L432 NwaCegarLoop]: 2440 mSDtfsCounter, 1217 mSDsluCounter, 2727 mSDsCounter, 0 mSdLazyCounter, 2652 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1221 SdHoareTripleChecker+Valid, 5167 SdHoareTripleChecker+Invalid, 2655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-17 02:55:05,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1221 Valid, 5167 Invalid, 2655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2652 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-17 02:55:05,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5010 states. [2024-11-17 02:55:05,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5010 to 3631. [2024-11-17 02:55:05,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3631 states, 2786 states have (on average 1.7631012203876526) internal successors, (4912), 3606 states have internal predecessors, (4912), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-17 02:55:05,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3631 states to 3631 states and 4962 transitions. [2024-11-17 02:55:05,661 INFO L78 Accepts]: Start accepts. Automaton has 3631 states and 4962 transitions. Word has length 38 [2024-11-17 02:55:05,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:55:05,661 INFO L471 AbstractCegarLoop]: Abstraction has 3631 states and 4962 transitions. [2024-11-17 02:55:05,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:55:05,661 INFO L276 IsEmpty]: Start isEmpty. Operand 3631 states and 4962 transitions. [2024-11-17 02:55:05,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-17 02:55:05,662 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:55:05,663 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] [2024-11-17 02:55:05,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2024-11-17 02:55:05,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:55:05,867 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr405REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-17 02:55:05,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:55:05,868 INFO L85 PathProgramCache]: Analyzing trace with hash 345731490, now seen corresponding path program 1 times [2024-11-17 02:55:05,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:55:05,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [364432630] [2024-11-17 02:55:05,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:55:05,869 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:55:05,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:55:05,872 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 02:55:05,873 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 (19)] Waiting until timeout for monitored process [2024-11-17 02:55:06,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:55:06,099 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 02:55:06,101 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:55:06,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:55:06,148 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:55:06,148 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:55:06,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [364432630] [2024-11-17 02:55:06,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [364432630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:55:06,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:55:06,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 02:55:06,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146911859] [2024-11-17 02:55:06,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:55:06,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:55:06,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:55:06,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:55:06,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:55:06,150 INFO L87 Difference]: Start difference. First operand 3631 states and 4962 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:55:06,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:55:06,228 INFO L93 Difference]: Finished difference Result 3619 states and 4938 transitions. [2024-11-17 02:55:06,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 02:55:06,229 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 44 [2024-11-17 02:55:06,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:55:06,234 INFO L225 Difference]: With dead ends: 3619 [2024-11-17 02:55:06,234 INFO L226 Difference]: Without dead ends: 3619 [2024-11-17 02:55:06,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:55:06,235 INFO L432 NwaCegarLoop]: 2066 mSDtfsCounter, 27 mSDsluCounter, 4094 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 6160 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 02:55:06,235 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 6160 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 02:55:06,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3619 states. [2024-11-17 02:55:06,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3619 to 3619. [2024-11-17 02:55:06,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3619 states, 2774 states have (on average 1.7620764239365536) internal successors, (4888), 3594 states have internal predecessors, (4888), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-17 02:55:06,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3619 states to 3619 states and 4938 transitions. [2024-11-17 02:55:06,284 INFO L78 Accepts]: Start accepts. Automaton has 3619 states and 4938 transitions. Word has length 44 [2024-11-17 02:55:06,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:55:06,284 INFO L471 AbstractCegarLoop]: Abstraction has 3619 states and 4938 transitions. [2024-11-17 02:55:06,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:55:06,285 INFO L276 IsEmpty]: Start isEmpty. Operand 3619 states and 4938 transitions. [2024-11-17 02:55:06,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-17 02:55:06,285 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:55:06,285 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] [2024-11-17 02:55:06,293 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2024-11-17 02:55:06,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:55:06,486 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr405REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-17 02:55:06,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:55:06,487 INFO L85 PathProgramCache]: Analyzing trace with hash -152410790, now seen corresponding path program 1 times [2024-11-17 02:55:06,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:55:06,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1058878059] [2024-11-17 02:55:06,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:55:06,487 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:55:06,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:55:06,491 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 02:55:06,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-11-17 02:55:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:55:06,690 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 02:55:06,692 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:55:06,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:55:06,896 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:55:06,896 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:55:06,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1058878059] [2024-11-17 02:55:06,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1058878059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:55:06,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:55:06,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:55:06,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636133397] [2024-11-17 02:55:06,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:55:06,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 02:55:06,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:55:06,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 02:55:06,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:55:06,900 INFO L87 Difference]: Start difference. First operand 3619 states and 4938 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:55:07,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:55:07,093 INFO L93 Difference]: Finished difference Result 5317 states and 7043 transitions. [2024-11-17 02:55:07,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 02:55:07,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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 52 [2024-11-17 02:55:07,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:55:07,099 INFO L225 Difference]: With dead ends: 5317 [2024-11-17 02:55:07,099 INFO L226 Difference]: Without dead ends: 5317 [2024-11-17 02:55:07,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:55:07,100 INFO L432 NwaCegarLoop]: 2154 mSDtfsCounter, 1329 mSDsluCounter, 1981 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1336 SdHoareTripleChecker+Valid, 4135 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 02:55:07,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1336 Valid, 4135 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-17 02:55:07,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5317 states. [2024-11-17 02:55:07,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5317 to 4714. [2024-11-17 02:55:07,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4714 states, 3862 states have (on average 1.752200932159503) internal successors, (6767), 4679 states have internal predecessors, (6767), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 32 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-17 02:55:07,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4714 states to 4714 states and 6837 transitions. [2024-11-17 02:55:07,150 INFO L78 Accepts]: Start accepts. Automaton has 4714 states and 6837 transitions. Word has length 52 [2024-11-17 02:55:07,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:55:07,151 INFO L471 AbstractCegarLoop]: Abstraction has 4714 states and 6837 transitions. [2024-11-17 02:55:07,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:55:07,151 INFO L276 IsEmpty]: Start isEmpty. Operand 4714 states and 6837 transitions. [2024-11-17 02:55:07,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-17 02:55:07,152 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:55:07,152 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] [2024-11-17 02:55:07,158 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 (20)] Ended with exit code 0 [2024-11-17 02:55:07,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:55:07,352 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr712REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-17 02:55:07,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:55:07,353 INFO L85 PathProgramCache]: Analyzing trace with hash -622195345, now seen corresponding path program 1 times [2024-11-17 02:55:07,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:55:07,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1152270155] [2024-11-17 02:55:07,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:55:07,353 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:55:07,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:55:07,355 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 02:55:07,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-11-17 02:55:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:55:07,601 INFO L255 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 02:55:07,603 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:55:07,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:55:07,644 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:55:07,644 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:55:07,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1152270155] [2024-11-17 02:55:07,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1152270155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:55:07,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:55:07,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 02:55:07,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539666448] [2024-11-17 02:55:07,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:55:07,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:55:07,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:55:07,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:55:07,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:55:07,646 INFO L87 Difference]: Start difference. First operand 4714 states and 6837 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 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) [2024-11-17 02:55:07,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:55:07,703 INFO L93 Difference]: Finished difference Result 4672 states and 6767 transitions. [2024-11-17 02:55:07,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 02:55:07,704 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 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 [2024-11-17 02:55:07,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:55:07,709 INFO L225 Difference]: With dead ends: 4672 [2024-11-17 02:55:07,709 INFO L226 Difference]: Without dead ends: 4672 [2024-11-17 02:55:07,709 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:55:07,710 INFO L432 NwaCegarLoop]: 2062 mSDtfsCounter, 27 mSDsluCounter, 4086 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 6148 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 02:55:07,710 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 6148 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 02:55:07,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4672 states. [2024-11-17 02:55:07,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4672 to 4672. [2024-11-17 02:55:07,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4672 states, 3820 states have (on average 1.7531413612565445) internal successors, (6697), 4637 states have internal predecessors, (6697), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 32 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-17 02:55:07,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4672 states to 4672 states and 6767 transitions. [2024-11-17 02:55:07,781 INFO L78 Accepts]: Start accepts. Automaton has 4672 states and 6767 transitions. Word has length 55 [2024-11-17 02:55:07,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:55:07,781 INFO L471 AbstractCegarLoop]: Abstraction has 4672 states and 6767 transitions. [2024-11-17 02:55:07,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 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) [2024-11-17 02:55:07,781 INFO L276 IsEmpty]: Start isEmpty. Operand 4672 states and 6767 transitions. [2024-11-17 02:55:07,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-17 02:55:07,782 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:55:07,782 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] [2024-11-17 02:55:07,791 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-11-17 02:55:07,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:55:07,983 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr991REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-17 02:55:07,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:55:07,983 INFO L85 PathProgramCache]: Analyzing trace with hash -977730640, now seen corresponding path program 1 times [2024-11-17 02:55:07,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:55:07,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [365658424] [2024-11-17 02:55:07,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:55:07,984 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:55:07,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:55:07,985 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 02:55:07,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-11-17 02:55:08,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:55:08,242 INFO L255 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 02:55:08,244 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:55:08,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:55:08,284 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:55:08,284 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:55:08,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [365658424] [2024-11-17 02:55:08,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [365658424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:55:08,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:55:08,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 02:55:08,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996632489] [2024-11-17 02:55:08,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:55:08,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:55:08,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:55:08,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:55:08,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:55:08,286 INFO L87 Difference]: Start difference. First operand 4672 states and 6767 transitions. Second operand has 4 states, 4 states have (on average 14.5) 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) [2024-11-17 02:55:08,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:55:08,361 INFO L93 Difference]: Finished difference Result 4654 states and 6737 transitions. [2024-11-17 02:55:08,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 02:55:08,362 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) 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 [2024-11-17 02:55:08,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:55:08,368 INFO L225 Difference]: With dead ends: 4654 [2024-11-17 02:55:08,368 INFO L226 Difference]: Without dead ends: 4654 [2024-11-17 02:55:08,368 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:55:08,369 INFO L432 NwaCegarLoop]: 2058 mSDtfsCounter, 21 mSDsluCounter, 4084 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 6142 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 02:55:08,369 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 6142 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 02:55:08,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4654 states. [2024-11-17 02:55:08,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4654 to 4654. [2024-11-17 02:55:08,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4654 states, 3802 states have (on average 1.753550762756444) internal successors, (6667), 4619 states have internal predecessors, (6667), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 32 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-17 02:55:08,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4654 states to 4654 states and 6737 transitions. [2024-11-17 02:55:08,415 INFO L78 Accepts]: Start accepts. Automaton has 4654 states and 6737 transitions. Word has length 58 [2024-11-17 02:55:08,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:55:08,415 INFO L471 AbstractCegarLoop]: Abstraction has 4654 states and 6737 transitions. [2024-11-17 02:55:08,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) 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) [2024-11-17 02:55:08,415 INFO L276 IsEmpty]: Start isEmpty. Operand 4654 states and 6737 transitions. [2024-11-17 02:55:08,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-17 02:55:08,416 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:55:08,416 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] [2024-11-17 02:55:08,424 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2024-11-17 02:55:08,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:55:08,617 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-17 02:55:08,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:55:08,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1856852529, now seen corresponding path program 1 times [2024-11-17 02:55:08,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:55:08,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [299475378] [2024-11-17 02:55:08,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:55:08,618 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:55:08,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:55:08,620 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 02:55:08,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-11-17 02:55:08,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:55:08,866 INFO L255 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 02:55:08,868 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:55:08,875 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-17 02:55:08,876 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-17 02:55:08,878 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 33 treesize of output 31 [2024-11-17 02:55:08,954 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-17 02:55:08,955 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 22 [2024-11-17 02:55:08,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:55:08,986 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:55:08,986 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:55:08,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [299475378] [2024-11-17 02:55:08,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [299475378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:55:08,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:55:08,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 02:55:08,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045306072] [2024-11-17 02:55:08,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:55:08,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:55:08,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:55:08,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:55:08,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:55:08,989 INFO L87 Difference]: Start difference. First operand 4654 states and 6737 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:55:09,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:55:09,920 INFO L93 Difference]: Finished difference Result 6150 states and 8790 transitions. [2024-11-17 02:55:09,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 02:55:09,921 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2024-11-17 02:55:09,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:55:09,928 INFO L225 Difference]: With dead ends: 6150 [2024-11-17 02:55:09,928 INFO L226 Difference]: Without dead ends: 6150 [2024-11-17 02:55:09,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:55:09,929 INFO L432 NwaCegarLoop]: 2403 mSDtfsCounter, 1735 mSDsluCounter, 3624 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1744 SdHoareTripleChecker+Valid, 6027 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-17 02:55:09,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1744 Valid, 6027 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-17 02:55:09,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6150 states. [2024-11-17 02:55:09,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6150 to 4619. [2024-11-17 02:55:09,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4619 states, 3767 states have (on average 1.7602867002920095) internal successors, (6631), 4584 states have internal predecessors, (6631), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 32 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-17 02:55:09,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4619 states to 4619 states and 6701 transitions. [2024-11-17 02:55:09,985 INFO L78 Accepts]: Start accepts. Automaton has 4619 states and 6701 transitions. Word has length 62 [2024-11-17 02:55:09,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:55:09,986 INFO L471 AbstractCegarLoop]: Abstraction has 4619 states and 6701 transitions. [2024-11-17 02:55:09,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:55:09,986 INFO L276 IsEmpty]: Start isEmpty. Operand 4619 states and 6701 transitions. [2024-11-17 02:55:09,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-17 02:55:09,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:55:09,987 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] [2024-11-17 02:55:09,995 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 (23)] Forceful destruction successful, exit code 0 [2024-11-17 02:55:10,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:55:10,187 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr712REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-17 02:55:10,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:55:10,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1814958425, now seen corresponding path program 1 times [2024-11-17 02:55:10,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:55:10,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1038027287] [2024-11-17 02:55:10,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:55:10,188 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:55:10,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:55:10,190 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 02:55:10,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-11-17 02:55:10,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:55:10,447 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 02:55:10,449 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:55:10,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:55:10,685 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:55:10,686 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:55:10,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1038027287] [2024-11-17 02:55:10,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1038027287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:55:10,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:55:10,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:55:10,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542255044] [2024-11-17 02:55:10,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:55:10,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 02:55:10,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:55:10,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 02:55:10,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:55:10,687 INFO L87 Difference]: Start difference. First operand 4619 states and 6701 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 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) [2024-11-17 02:55:10,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:55:10,853 INFO L93 Difference]: Finished difference Result 6306 states and 8855 transitions. [2024-11-17 02:55:10,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 02:55:10,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 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 [2024-11-17 02:55:10,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:55:10,862 INFO L225 Difference]: With dead ends: 6306 [2024-11-17 02:55:10,862 INFO L226 Difference]: Without dead ends: 6306 [2024-11-17 02:55:10,863 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:55:10,863 INFO L432 NwaCegarLoop]: 2656 mSDtfsCounter, 1030 mSDsluCounter, 2012 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1036 SdHoareTripleChecker+Valid, 4668 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 02:55:10,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1036 Valid, 4668 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 02:55:10,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6306 states. [2024-11-17 02:55:10,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6306 to 5751. [2024-11-17 02:55:10,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5751 states, 4891 states have (on average 1.7415661418932733) internal successors, (8518), 5705 states have internal predecessors, (8518), 46 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (46), 43 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-17 02:55:10,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5751 states to 5751 states and 8610 transitions. [2024-11-17 02:55:10,928 INFO L78 Accepts]: Start accepts. Automaton has 5751 states and 8610 transitions. Word has length 63 [2024-11-17 02:55:10,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:55:10,929 INFO L471 AbstractCegarLoop]: Abstraction has 5751 states and 8610 transitions. [2024-11-17 02:55:10,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 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) [2024-11-17 02:55:10,929 INFO L276 IsEmpty]: Start isEmpty. Operand 5751 states and 8610 transitions. [2024-11-17 02:55:10,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-17 02:55:10,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:55:10,930 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] [2024-11-17 02:55:10,942 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 (24)] Forceful destruction successful, exit code 0 [2024-11-17 02:55:11,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:55:11,131 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr991REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-17 02:55:11,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:55:11,131 INFO L85 PathProgramCache]: Analyzing trace with hash -127798920, now seen corresponding path program 1 times [2024-11-17 02:55:11,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:55:11,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [315031479] [2024-11-17 02:55:11,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:55:11,132 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:55:11,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:55:11,135 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 02:55:11,137 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 (25)] Waiting until timeout for monitored process [2024-11-17 02:55:11,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:55:11,518 INFO L255 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-17 02:55:11,521 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:55:11,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-17 02:55:11,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-17 02:55:11,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-17 02:55:11,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-17 02:55:11,902 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-17 02:55:11,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-17 02:55:11,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:55:11,937 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:55:11,937 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:55:11,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [315031479] [2024-11-17 02:55:11,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [315031479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:55:11,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:55:11,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:55:11,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424427716] [2024-11-17 02:55:11,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:55:11,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:55:11,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:55:11,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:55:11,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:55:11,939 INFO L87 Difference]: Start difference. First operand 5751 states and 8610 transitions. Second operand has 4 states, 3 states have (on average 22.0) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:55:14,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:55:14,378 INFO L93 Difference]: Finished difference Result 5667 states and 8329 transitions. [2024-11-17 02:55:14,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 02:55:14,379 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.0) internal successors, (66), 4 states have internal predecessors, (66), 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 66 [2024-11-17 02:55:14,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:55:14,385 INFO L225 Difference]: With dead ends: 5667 [2024-11-17 02:55:14,385 INFO L226 Difference]: Without dead ends: 5667 [2024-11-17 02:55:14,385 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:55:14,386 INFO L432 NwaCegarLoop]: 913 mSDtfsCounter, 1647 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 1386 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1657 SdHoareTripleChecker+Valid, 1145 SdHoareTripleChecker+Invalid, 1477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-17 02:55:14,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1657 Valid, 1145 Invalid, 1477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1386 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-17 02:55:14,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5667 states. [2024-11-17 02:55:14,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5667 to 5480. [2024-11-17 02:55:14,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5480 states, 4704 states have (on average 1.6787840136054422) internal successors, (7897), 5434 states have internal predecessors, (7897), 46 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (46), 43 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-17 02:55:14,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5480 states to 5480 states and 7989 transitions. [2024-11-17 02:55:14,430 INFO L78 Accepts]: Start accepts. Automaton has 5480 states and 7989 transitions. Word has length 66 [2024-11-17 02:55:14,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:55:14,431 INFO L471 AbstractCegarLoop]: Abstraction has 5480 states and 7989 transitions. [2024-11-17 02:55:14,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.0) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:55:14,431 INFO L276 IsEmpty]: Start isEmpty. Operand 5480 states and 7989 transitions. [2024-11-17 02:55:14,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-17 02:55:14,435 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:55:14,436 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] [2024-11-17 02:55:14,444 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 (25)] Forceful destruction successful, exit code 0 [2024-11-17 02:55:14,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:55:14,636 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr984REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-17 02:55:14,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:55:14,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1376932571, now seen corresponding path program 1 times [2024-11-17 02:55:14,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:55:14,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [616868699] [2024-11-17 02:55:14,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:55:14,637 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:55:14,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:55:14,640 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 02:55:14,641 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 (26)] Waiting until timeout for monitored process [2024-11-17 02:55:14,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:55:14,926 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 02:55:14,929 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:55:14,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-17 02:55:14,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-17 02:55:14,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-17 02:55:14,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:55:14,982 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:55:14,982 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:55:14,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [616868699] [2024-11-17 02:55:14,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [616868699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:55:14,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:55:14,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 02:55:14,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313963151] [2024-11-17 02:55:14,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:55:14,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 02:55:14,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:55:14,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 02:55:14,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:55:14,984 INFO L87 Difference]: Start difference. First operand 5480 states and 7989 transitions. Second operand has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:55:17,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:55:17,876 INFO L93 Difference]: Finished difference Result 5479 states and 7986 transitions. [2024-11-17 02:55:17,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 02:55:17,876 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 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 71 [2024-11-17 02:55:17,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:55:17,881 INFO L225 Difference]: With dead ends: 5479 [2024-11-17 02:55:17,881 INFO L226 Difference]: Without dead ends: 5479 [2024-11-17 02:55:17,881 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-17 02:55:17,882 INFO L432 NwaCegarLoop]: 1985 mSDtfsCounter, 2 mSDsluCounter, 3393 mSDsCounter, 0 mSdLazyCounter, 2569 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5378 SdHoareTripleChecker+Invalid, 2570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-17 02:55:17,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 5378 Invalid, 2570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2569 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-17 02:55:17,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5479 states. [2024-11-17 02:55:17,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5479 to 5479. [2024-11-17 02:55:17,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 4704 states have (on average 1.6781462585034013) internal successors, (7894), 5433 states have internal predecessors, (7894), 46 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (46), 43 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-17 02:55:17,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 7986 transitions. [2024-11-17 02:55:17,948 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 7986 transitions. Word has length 71 [2024-11-17 02:55:17,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:55:17,949 INFO L471 AbstractCegarLoop]: Abstraction has 5479 states and 7986 transitions. [2024-11-17 02:55:17,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:55:17,949 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 7986 transitions. [2024-11-17 02:55:17,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-17 02:55:17,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:55:17,950 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] [2024-11-17 02:55:17,956 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 (26)] Forceful destruction successful, exit code 0 [2024-11-17 02:55:18,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:55:18,150 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr985REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-17 02:55:18,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:55:18,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1376932570, now seen corresponding path program 1 times [2024-11-17 02:55:18,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:55:18,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1012055698] [2024-11-17 02:55:18,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:55:18,152 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:55:18,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:55:18,153 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 02:55:18,154 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 (27)] Waiting until timeout for monitored process [2024-11-17 02:55:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:55:18,451 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-17 02:55:18,454 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:55:18,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-17 02:55:18,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-17 02:55:18,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-17 02:55:18,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-17 02:55:18,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:55:18,520 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:55:18,520 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:55:18,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1012055698] [2024-11-17 02:55:18,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1012055698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:55:18,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:55:18,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 02:55:18,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802618070] [2024-11-17 02:55:18,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:55:18,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 02:55:18,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:55:18,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 02:55:18,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:55:18,522 INFO L87 Difference]: Start difference. First operand 5479 states and 7986 transitions. Second operand has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:55:22,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:55:22,200 INFO L93 Difference]: Finished difference Result 5478 states and 7983 transitions. [2024-11-17 02:55:22,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 02:55:22,201 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 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 71 [2024-11-17 02:55:22,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:55:22,206 INFO L225 Difference]: With dead ends: 5478 [2024-11-17 02:55:22,206 INFO L226 Difference]: Without dead ends: 5478 [2024-11-17 02:55:22,206 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-17 02:55:22,207 INFO L432 NwaCegarLoop]: 1985 mSDtfsCounter, 1 mSDsluCounter, 3373 mSDsCounter, 0 mSdLazyCounter, 2586 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 5358 SdHoareTripleChecker+Invalid, 2587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-17 02:55:22,207 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 5358 Invalid, 2587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2586 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-17 02:55:22,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5478 states. [2024-11-17 02:55:22,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5478 to 5478. [2024-11-17 02:55:22,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5478 states, 4701 states have (on average 1.6785790257392044) internal successors, (7891), 5432 states have internal predecessors, (7891), 46 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (46), 43 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-17 02:55:22,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5478 states to 5478 states and 7983 transitions. [2024-11-17 02:55:22,263 INFO L78 Accepts]: Start accepts. Automaton has 5478 states and 7983 transitions. Word has length 71 [2024-11-17 02:55:22,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:55:22,263 INFO L471 AbstractCegarLoop]: Abstraction has 5478 states and 7983 transitions. [2024-11-17 02:55:22,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:55:22,263 INFO L276 IsEmpty]: Start isEmpty. Operand 5478 states and 7983 transitions. [2024-11-17 02:55:22,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-17 02:55:22,264 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:55:22,264 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] [2024-11-17 02:55:22,272 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 (27)] Forceful destruction successful, exit code 0 [2024-11-17 02:55:22,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:55:22,464 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr676REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-17 02:55:22,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:55:22,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1516330446, now seen corresponding path program 1 times [2024-11-17 02:55:22,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:55:22,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [36373050] [2024-11-17 02:55:22,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:55:22,466 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:55:22,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:55:22,467 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 02:55:22,468 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 (28)] Waiting until timeout for monitored process [2024-11-17 02:55:22,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:55:22,765 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 02:55:22,767 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:55:22,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-17 02:55:22,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-17 02:55:22,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-17 02:55:22,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:55:22,807 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:55:22,807 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:55:22,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [36373050] [2024-11-17 02:55:22,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [36373050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:55:22,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:55:22,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 02:55:22,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862487968] [2024-11-17 02:55:22,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:55:22,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 02:55:22,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:55:22,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 02:55:22,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:55:22,809 INFO L87 Difference]: Start difference. First operand 5478 states and 7983 transitions. Second operand has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 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)