./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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_SAX_test6-2.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 bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 09:35:36,409 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 09:35:36,460 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-04 09:35:36,465 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 09:35:36,467 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 09:35:36,490 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 09:35:36,490 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 09:35:36,490 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 09:35:36,490 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 09:35:36,491 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 09:35:36,492 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 09:35:36,492 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 09:35:36,492 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 09:35:36,492 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 09:35:36,492 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 09:35:36,492 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 09:35:36,492 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 09:35:36,492 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 09:35:36,493 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 09:35:36,493 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 09:35:36,493 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 09:35:36,493 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 09:35:36,493 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-04 09:35:36,493 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 09:35:36,493 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 09:35:36,493 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 09:35:36,493 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 09:35:36,493 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 09:35:36,493 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 09:35:36,493 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 09:35:36,494 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 09:35:36,494 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 09:35:36,494 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 09:35:36,494 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:35:36,494 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 09:35:36,494 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 09:35:36,494 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 09:35:36,494 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 09:35:36,494 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 09:35:36,494 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 09:35:36,494 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 09:35:36,494 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 09:35:36,494 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 [2025-03-04 09:35:36,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 09:35:36,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 09:35:36,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 09:35:36,736 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 09:35:36,736 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 09:35:36,737 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i [2025-03-04 09:35:37,925 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c0d170a7/9ebc410b2f004fd0ad05a57c7bf7d526/FLAG63ddf3599 [2025-03-04 09:35:38,236 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 09:35:38,238 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i [2025-03-04 09:35:38,259 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c0d170a7/9ebc410b2f004fd0ad05a57c7bf7d526/FLAG63ddf3599 [2025-03-04 09:35:38,276 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c0d170a7/9ebc410b2f004fd0ad05a57c7bf7d526 [2025-03-04 09:35:38,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 09:35:38,281 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 09:35:38,282 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 09:35:38,283 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 09:35:38,286 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 09:35:38,287 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:35:38" (1/1) ... [2025-03-04 09:35:38,287 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37d2cea5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:35:38, skipping insertion in model container [2025-03-04 09:35:38,289 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:35:38" (1/1) ... [2025-03-04 09:35:38,328 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 09:35:38,667 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:38,692 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:38,694 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:38,696 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:38,699 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:38,724 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:38,724 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:38,725 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:38,726 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:38,727 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:38,728 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:38,728 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:38,729 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:38,731 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:38,731 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:38,733 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:38,733 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:38,734 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:38,734 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:38,736 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:38,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:35:38,752 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) [2025-03-04 09:35:38,754 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7cbbfc5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:35:38, skipping insertion in model container [2025-03-04 09:35:38,754 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 09:35:38,755 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-03-04 09:35:38,756 INFO L158 Benchmark]: Toolchain (without parser) took 476.03ms. Allocated memory is still 142.6MB. Free memory was 109.8MB in the beginning and 87.8MB in the end (delta: 22.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-04 09:35:38,758 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 09:35:38,758 INFO L158 Benchmark]: CACSL2BoogieTranslator took 473.02ms. Allocated memory is still 142.6MB. Free memory was 109.8MB in the beginning and 87.8MB in the end (delta: 22.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-04 09:35:38,759 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 473.02ms. Allocated memory is still 142.6MB. Free memory was 109.8MB in the beginning and 87.8MB in the end (delta: 22.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1001]: 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/21.0.5-tem/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_1.6.800.v20240513-1750.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_SAX_test6-2.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 bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 09:35:40,370 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 09:35:40,436 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-03-04 09:35:40,442 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 09:35:40,447 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 09:35:40,476 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 09:35:40,477 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 09:35:40,478 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 09:35:40,478 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 09:35:40,478 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 09:35:40,479 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 09:35:40,479 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 09:35:40,480 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 09:35:40,480 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 09:35:40,480 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 09:35:40,480 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 09:35:40,480 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 09:35:40,480 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 09:35:40,480 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 09:35:40,480 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 09:35:40,480 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 09:35:40,480 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 09:35:40,480 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-04 09:35:40,481 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 09:35:40,481 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 09:35:40,481 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-04 09:35:40,481 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-04 09:35:40,482 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 09:35:40,482 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 09:35:40,482 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 09:35:40,482 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 09:35:40,482 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 09:35:40,482 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 09:35:40,482 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 09:35:40,483 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 09:35:40,483 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:35:40,483 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 09:35:40,483 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 09:35:40,483 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-04 09:35:40,483 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-04 09:35:40,483 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 09:35:40,483 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 09:35:40,484 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 09:35:40,484 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 09:35:40,484 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 [2025-03-04 09:35:40,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 09:35:40,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 09:35:40,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 09:35:40,751 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 09:35:40,751 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 09:35:40,753 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i [2025-03-04 09:35:41,248 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77e157f31/1692eaa235224cc39079befe452a85ea/FLAGfdd1b9a1c [2025-03-04 09:35:41,652 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 09:35:41,655 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i [2025-03-04 09:35:41,675 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77e157f31/1692eaa235224cc39079befe452a85ea/FLAGfdd1b9a1c [2025-03-04 09:35:43,534 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77e157f31/1692eaa235224cc39079befe452a85ea [2025-03-04 09:35:43,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 09:35:43,538 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 09:35:43,539 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 09:35:43,539 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 09:35:43,542 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 09:35:43,542 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:35:43" (1/1) ... [2025-03-04 09:35:43,543 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dd47486 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:35:43, skipping insertion in model container [2025-03-04 09:35:43,543 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:35:43" (1/1) ... [2025-03-04 09:35:43,581 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 09:35:43,922 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:43,956 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:43,959 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:43,962 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:43,966 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:43,992 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:43,992 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:43,994 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:43,994 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:43,996 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:43,997 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:43,997 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:43,998 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:44,002 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:44,003 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:44,007 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:44,008 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:44,009 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:44,009 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:44,019 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:44,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:35:44,046 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-03-04 09:35:44,054 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 09:35:44,086 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:44,104 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:44,105 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:44,111 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:44,113 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:44,144 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:44,145 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:44,146 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:44,146 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:44,147 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:44,148 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:44,148 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:44,149 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:44,150 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:44,151 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:44,152 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:44,153 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:44,153 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:44,155 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:44,157 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:35:44,163 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:35:44,170 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 09:35:44,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:35:44,294 INFO L204 MainTranslator]: Completed translation [2025-03-04 09:35:44,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:35:44 WrapperNode [2025-03-04 09:35:44,295 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 09:35:44,296 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 09:35:44,296 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 09:35:44,296 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 09:35:44,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:35:44" (1/1) ... [2025-03-04 09:35:44,321 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:35:44" (1/1) ... [2025-03-04 09:35:44,377 INFO L138 Inliner]: procedures = 286, calls = 353, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1191 [2025-03-04 09:35:44,378 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 09:35:44,378 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 09:35:44,378 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 09:35:44,378 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 09:35:44,384 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:35:44" (1/1) ... [2025-03-04 09:35:44,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:35:44" (1/1) ... [2025-03-04 09:35:44,391 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:35:44" (1/1) ... [2025-03-04 09:35:44,473 INFO L175 MemorySlicer]: Split 318 memory accesses to 4 slices as follows [2, 12, 270, 34]. 85 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 10, 0, 0]. The 62 writes are split as follows [0, 1, 57, 4]. [2025-03-04 09:35:44,473 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:35:44" (1/1) ... [2025-03-04 09:35:44,473 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:35:44" (1/1) ... [2025-03-04 09:35:44,524 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:35:44" (1/1) ... [2025-03-04 09:35:44,532 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:35:44" (1/1) ... [2025-03-04 09:35:44,537 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:35:44" (1/1) ... [2025-03-04 09:35:44,541 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:35:44" (1/1) ... [2025-03-04 09:35:44,548 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 09:35:44,548 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 09:35:44,549 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 09:35:44,549 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 09:35:44,549 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:35:44" (1/1) ... [2025-03-04 09:35:44,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:35:44,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:35:44,582 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) [2025-03-04 09:35:44,584 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 [2025-03-04 09:35:44,602 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-03-04 09:35:44,603 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-03-04 09:35:44,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-03-04 09:35:44,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-03-04 09:35:44,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-03-04 09:35:44,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2025-03-04 09:35:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-04 09:35:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-04 09:35:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-03-04 09:35:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-03-04 09:35:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 09:35:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 09:35:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 09:35:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 09:35:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 09:35:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 09:35:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-04 09:35:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-04 09:35:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-03-04 09:35:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-03-04 09:35:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-04 09:35:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-04 09:35:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-03-04 09:35:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-03-04 09:35:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2025-03-04 09:35:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2025-03-04 09:35:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2025-03-04 09:35:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2025-03-04 09:35:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2025-03-04 09:35:44,604 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2025-03-04 09:35:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 09:35:44,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 09:35:44,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 09:35:44,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 09:35:44,605 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2025-03-04 09:35:44,605 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2025-03-04 09:35:44,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 09:35:44,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 09:35:44,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 09:35:44,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 09:35:44,605 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2025-03-04 09:35:44,605 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2025-03-04 09:35:44,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 09:35:44,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 09:35:44,823 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 09:35:44,824 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 09:35:44,891 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L955: havoc #t~malloc32.base, #t~malloc32.offset; [2025-03-04 09:35:47,763 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L969: havoc alt_memcmp_#t~nondet36#1; [2025-03-04 09:35:47,763 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L979: havoc real_malloc_#t~malloc39#1.base, real_malloc_#t~malloc39#1.offset; [2025-03-04 09:35:47,764 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L987: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2025-03-04 09:35:47,842 INFO L? ?]: Removed 1306 outVars from TransFormulas that were not future-live. [2025-03-04 09:35:47,843 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 09:35:47,870 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 09:35:47,870 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 09:35:47,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:35:47 BoogieIcfgContainer [2025-03-04 09:35:47,870 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 09:35:47,872 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 09:35:47,872 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 09:35:47,876 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 09:35:47,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 09:35:43" (1/3) ... [2025-03-04 09:35:47,877 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ab378c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:35:47, skipping insertion in model container [2025-03-04 09:35:47,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:35:44" (2/3) ... [2025-03-04 09:35:47,878 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ab378c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:35:47, skipping insertion in model container [2025-03-04 09:35:47,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:35:47" (3/3) ... [2025-03-04 09:35:47,879 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test6-2.i [2025-03-04 09:35:47,888 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 09:35:47,889 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SAX_test6-2.i that has 6 procedures, 1277 locations, 1 initial locations, 39 loop locations, and 625 error locations. [2025-03-04 09:35:47,945 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 09:35:47,953 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;@2740a810, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 09:35:47,953 INFO L334 AbstractCegarLoop]: Starting to check reachability of 625 error locations. [2025-03-04 09:35:47,957 INFO L276 IsEmpty]: Start isEmpty. Operand has 1277 states, 627 states have (on average 2.218500797448166) internal successors, (1391), 1255 states have internal predecessors, (1391), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-03-04 09:35:47,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-03-04 09:35:47,960 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 09:35:47,961 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-03-04 09:35:47,961 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr613REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-03-04 09:35:47,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:35:47,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1432866, now seen corresponding path program 1 times [2025-03-04 09:35:47,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:35:47,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1959765508] [2025-03-04 09:35:47,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:35:47,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:35:47,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:35:47,974 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:35:47,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 09:35:48,097 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 09:35:48,114 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 09:35:48,114 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:35:48,114 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:35:48,118 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 09:35:48,121 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:35:48,156 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 [2025-03-04 09:35:48,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:35:48,174 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:35:48,174 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:35:48,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959765508] [2025-03-04 09:35:48,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959765508] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:35:48,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:35:48,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 09:35:48,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352808955] [2025-03-04 09:35:48,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:35:48,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:35:48,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:35:48,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:35:48,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:35:48,201 INFO L87 Difference]: Start difference. First operand has 1277 states, 627 states have (on average 2.218500797448166) internal successors, (1391), 1255 states have internal predecessors, (1391), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) 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) [2025-03-04 09:35:49,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 09:35:49,710 INFO L93 Difference]: Finished difference Result 1536 states and 1629 transitions. [2025-03-04 09:35:49,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:35:49,712 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 [2025-03-04 09:35:49,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 09:35:49,728 INFO L225 Difference]: With dead ends: 1536 [2025-03-04 09:35:49,728 INFO L226 Difference]: Without dead ends: 1534 [2025-03-04 09:35:49,730 INFO L434 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 [2025-03-04 09:35:49,734 INFO L435 NwaCegarLoop]: 904 mSDtfsCounter, 909 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-03-04 09:35:49,734 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [912 Valid, 1250 Invalid, 804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-03-04 09:35:49,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1534 states. [2025-03-04 09:35:49,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1534 to 1298. [2025-03-04 09:35:49,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1298 states, 663 states have (on average 2.090497737556561) internal successors, (1386), 1278 states have internal predecessors, (1386), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-04 09:35:49,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 1420 transitions. [2025-03-04 09:35:49,821 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 1420 transitions. Word has length 3 [2025-03-04 09:35:49,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 09:35:49,821 INFO L471 AbstractCegarLoop]: Abstraction has 1298 states and 1420 transitions. [2025-03-04 09:35:49,821 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) [2025-03-04 09:35:49,822 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 1420 transitions. [2025-03-04 09:35:49,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-03-04 09:35:49,822 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 09:35:49,822 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-03-04 09:35:49,829 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 09:35:50,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:35:50,026 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr614REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-03-04 09:35:50,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:35:50,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1432867, now seen corresponding path program 1 times [2025-03-04 09:35:50,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:35:50,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [525747909] [2025-03-04 09:35:50,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:35:50,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:35:50,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:35:50,030 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:35:50,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 09:35:50,131 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 09:35:50,144 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 09:35:50,144 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:35:50,144 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:35:50,145 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 09:35:50,147 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:35:50,153 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 [2025-03-04 09:35:50,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:35:50,163 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:35:50,163 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:35:50,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525747909] [2025-03-04 09:35:50,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525747909] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:35:50,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:35:50,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 09:35:50,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090186013] [2025-03-04 09:35:50,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:35:50,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:35:50,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:35:50,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:35:50,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:35:50,165 INFO L87 Difference]: Start difference. First operand 1298 states and 1420 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) [2025-03-04 09:35:52,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 09:35:52,156 INFO L93 Difference]: Finished difference Result 1897 states and 2069 transitions. [2025-03-04 09:35:52,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:35:52,157 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 [2025-03-04 09:35:52,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 09:35:52,164 INFO L225 Difference]: With dead ends: 1897 [2025-03-04 09:35:52,164 INFO L226 Difference]: Without dead ends: 1897 [2025-03-04 09:35:52,164 INFO L434 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 [2025-03-04 09:35:52,165 INFO L435 NwaCegarLoop]: 1041 mSDtfsCounter, 632 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 1746 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-03-04 09:35:52,166 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [639 Valid, 1746 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 916 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-03-04 09:35:52,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1897 states. [2025-03-04 09:35:52,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1897 to 1509. [2025-03-04 09:35:52,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 873 states have (on average 2.0721649484536084) internal successors, (1809), 1487 states have internal predecessors, (1809), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-03-04 09:35:52,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 1847 transitions. [2025-03-04 09:35:52,194 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 1847 transitions. Word has length 3 [2025-03-04 09:35:52,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 09:35:52,195 INFO L471 AbstractCegarLoop]: Abstraction has 1509 states and 1847 transitions. [2025-03-04 09:35:52,195 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) [2025-03-04 09:35:52,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 1847 transitions. [2025-03-04 09:35:52,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-04 09:35:52,195 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 09:35:52,196 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:35:52,203 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 09:35:52,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:35:52,396 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr610REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-03-04 09:35:52,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:35:52,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1816565268, now seen corresponding path program 1 times [2025-03-04 09:35:52,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:35:52,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [931281636] [2025-03-04 09:35:52,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:35:52,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:35:52,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:35:52,400 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:35:52,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 09:35:52,512 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 09:35:52,531 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 09:35:52,531 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:35:52,531 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:35:52,534 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 09:35:52,536 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:35:52,543 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 [2025-03-04 09:35:52,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 09:35:52,596 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 [2025-03-04 09:35:52,609 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-03-04 09:35:52,609 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 [2025-03-04 09:35:52,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:35:52,626 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:35:52,626 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:35:52,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931281636] [2025-03-04 09:35:52,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931281636] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:35:52,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:35:52,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 09:35:52,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393424336] [2025-03-04 09:35:52,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:35:52,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 09:35:52,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:35:52,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 09:35:52,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 09:35:52,627 INFO L87 Difference]: Start difference. First operand 1509 states and 1847 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) [2025-03-04 09:35:56,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 09:35:56,336 INFO L93 Difference]: Finished difference Result 2587 states and 3006 transitions. [2025-03-04 09:35:56,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 09:35:56,337 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 [2025-03-04 09:35:56,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 09:35:56,343 INFO L225 Difference]: With dead ends: 2587 [2025-03-04 09:35:56,343 INFO L226 Difference]: Without dead ends: 2587 [2025-03-04 09:35:56,344 INFO L434 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 [2025-03-04 09:35:56,346 INFO L435 NwaCegarLoop]: 699 mSDtfsCounter, 1122 mSDsluCounter, 1094 mSDsCounter, 0 mSdLazyCounter, 2201 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1128 SdHoareTripleChecker+Valid, 1793 SdHoareTripleChecker+Invalid, 2214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2025-03-04 09:35:56,347 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1128 Valid, 1793 Invalid, 2214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2201 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2025-03-04 09:35:56,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2587 states. [2025-03-04 09:35:56,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2587 to 1656. [2025-03-04 09:35:56,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1656 states, 1020 states have (on average 2.052941176470588) internal successors, (2094), 1634 states have internal predecessors, (2094), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-03-04 09:35:56,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1656 states to 1656 states and 2132 transitions. [2025-03-04 09:35:56,387 INFO L78 Accepts]: Start accepts. Automaton has 1656 states and 2132 transitions. Word has length 8 [2025-03-04 09:35:56,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 09:35:56,387 INFO L471 AbstractCegarLoop]: Abstraction has 1656 states and 2132 transitions. [2025-03-04 09:35:56,387 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) [2025-03-04 09:35:56,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1656 states and 2132 transitions. [2025-03-04 09:35:56,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-04 09:35:56,388 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 09:35:56,388 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:35:56,395 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-04 09:35:56,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:35:56,592 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr608REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-03-04 09:35:56,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:35:56,593 INFO L85 PathProgramCache]: Analyzing trace with hash 478949790, now seen corresponding path program 1 times [2025-03-04 09:35:56,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:35:56,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [30422645] [2025-03-04 09:35:56,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:35:56,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:35:56,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:35:56,598 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:35:56,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 09:35:56,702 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 09:35:56,720 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 09:35:56,721 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:35:56,721 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:35:56,723 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 09:35:56,725 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:35:56,731 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 [2025-03-04 09:35:56,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:35:56,754 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:35:56,754 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:35:56,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30422645] [2025-03-04 09:35:56,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [30422645] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:35:56,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:35:56,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 09:35:56,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549485539] [2025-03-04 09:35:56,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:35:56,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 09:35:56,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:35:56,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 09:35:56,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 09:35:56,755 INFO L87 Difference]: Start difference. First operand 1656 states and 2132 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2025-03-04 09:35:59,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 09:35:59,406 INFO L93 Difference]: Finished difference Result 2308 states and 2985 transitions. [2025-03-04 09:35:59,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 09:35:59,407 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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 [2025-03-04 09:35:59,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 09:35:59,414 INFO L225 Difference]: With dead ends: 2308 [2025-03-04 09:35:59,414 INFO L226 Difference]: Without dead ends: 2308 [2025-03-04 09:35:59,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:35:59,416 INFO L435 NwaCegarLoop]: 1425 mSDtfsCounter, 700 mSDsluCounter, 1488 mSDsCounter, 0 mSdLazyCounter, 1746 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 2913 SdHoareTripleChecker+Invalid, 1760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2025-03-04 09:35:59,417 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 2913 Invalid, 1760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1746 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2025-03-04 09:35:59,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2308 states. [2025-03-04 09:35:59,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2308 to 1648. [2025-03-04 09:35:59,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1648 states, 1022 states have (on average 2.028375733855186) internal successors, (2073), 1626 states have internal predecessors, (2073), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-03-04 09:35:59,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1648 states to 1648 states and 2111 transitions. [2025-03-04 09:35:59,454 INFO L78 Accepts]: Start accepts. Automaton has 1648 states and 2111 transitions. Word has length 9 [2025-03-04 09:35:59,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 09:35:59,454 INFO L471 AbstractCegarLoop]: Abstraction has 1648 states and 2111 transitions. [2025-03-04 09:35:59,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2025-03-04 09:35:59,455 INFO L276 IsEmpty]: Start isEmpty. Operand 1648 states and 2111 transitions. [2025-03-04 09:35:59,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-04 09:35:59,455 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 09:35:59,455 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:35:59,474 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-04 09:35:59,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:35:59,656 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr607REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-03-04 09:35:59,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:35:59,656 INFO L85 PathProgramCache]: Analyzing trace with hash 478949789, now seen corresponding path program 1 times [2025-03-04 09:35:59,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:35:59,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1337467597] [2025-03-04 09:35:59,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:35:59,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:35:59,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:35:59,658 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:35:59,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-04 09:35:59,761 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 09:35:59,779 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 09:35:59,779 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:35:59,779 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:35:59,781 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 09:35:59,782 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:35:59,786 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 [2025-03-04 09:35:59,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:35:59,799 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:35:59,799 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:35:59,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337467597] [2025-03-04 09:35:59,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337467597] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:35:59,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:35:59,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 09:35:59,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254842074] [2025-03-04 09:35:59,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:35:59,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 09:35:59,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:35:59,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 09:35:59,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 09:35:59,800 INFO L87 Difference]: Start difference. First operand 1648 states and 2111 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2025-03-04 09:36:01,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 09:36:01,420 INFO L93 Difference]: Finished difference Result 2191 states and 2881 transitions. [2025-03-04 09:36:01,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 09:36:01,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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 [2025-03-04 09:36:01,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 09:36:01,425 INFO L225 Difference]: With dead ends: 2191 [2025-03-04 09:36:01,425 INFO L226 Difference]: Without dead ends: 2191 [2025-03-04 09:36:01,426 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:36:01,426 INFO L435 NwaCegarLoop]: 1218 mSDtfsCounter, 919 mSDsluCounter, 1280 mSDsCounter, 0 mSdLazyCounter, 1655 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 2498 SdHoareTripleChecker+Invalid, 1704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-03-04 09:36:01,426 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [922 Valid, 2498 Invalid, 1704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1655 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-03-04 09:36:01,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2191 states. [2025-03-04 09:36:01,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2191 to 1603. [2025-03-04 09:36:01,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1603 states, 1022 states have (on average 1.9696673189823874) internal successors, (2013), 1581 states have internal predecessors, (2013), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-03-04 09:36:01,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1603 states to 1603 states and 2051 transitions. [2025-03-04 09:36:01,447 INFO L78 Accepts]: Start accepts. Automaton has 1603 states and 2051 transitions. Word has length 9 [2025-03-04 09:36:01,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 09:36:01,448 INFO L471 AbstractCegarLoop]: Abstraction has 1603 states and 2051 transitions. [2025-03-04 09:36:01,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2025-03-04 09:36:01,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1603 states and 2051 transitions. [2025-03-04 09:36:01,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-04 09:36:01,448 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 09:36:01,448 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:36:01,455 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-04 09:36:01,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:01,653 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr291REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-03-04 09:36:01,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:36:01,654 INFO L85 PathProgramCache]: Analyzing trace with hash 2083823030, now seen corresponding path program 1 times [2025-03-04 09:36:01,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:36:01,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1149574933] [2025-03-04 09:36:01,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:36:01,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:01,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:36:01,656 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:36:01,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-04 09:36:01,754 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 09:36:01,773 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 09:36:01,773 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:36:01,773 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:36:01,775 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 09:36:01,776 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:36:01,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:36:01,799 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:36:01,800 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:36:01,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149574933] [2025-03-04 09:36:01,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149574933] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:36:01,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:36:01,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 09:36:01,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612626001] [2025-03-04 09:36:01,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:36:01,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 09:36:01,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:36:01,801 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 09:36:01,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 09:36:01,801 INFO L87 Difference]: Start difference. First operand 1603 states and 2051 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:36:03,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 09:36:03,273 INFO L93 Difference]: Finished difference Result 1820 states and 2225 transitions. [2025-03-04 09:36:03,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 09:36:03,274 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2025-03-04 09:36:03,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 09:36:03,278 INFO L225 Difference]: With dead ends: 1820 [2025-03-04 09:36:03,278 INFO L226 Difference]: Without dead ends: 1820 [2025-03-04 09:36:03,278 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:36:03,279 INFO L435 NwaCegarLoop]: 837 mSDtfsCounter, 928 mSDsluCounter, 956 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 931 SdHoareTripleChecker+Valid, 1793 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-03-04 09:36:03,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [931 Valid, 1793 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1312 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-03-04 09:36:03,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1820 states. [2025-03-04 09:36:03,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1820 to 1580. [2025-03-04 09:36:03,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1022 states have (on average 1.9246575342465753) internal successors, (1967), 1558 states have internal predecessors, (1967), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-03-04 09:36:03,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 2005 transitions. [2025-03-04 09:36:03,297 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 2005 transitions. Word has length 12 [2025-03-04 09:36:03,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 09:36:03,297 INFO L471 AbstractCegarLoop]: Abstraction has 1580 states and 2005 transitions. [2025-03-04 09:36:03,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:36:03,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 2005 transitions. [2025-03-04 09:36:03,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-04 09:36:03,298 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 09:36:03,298 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:36:03,305 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-04 09:36:03,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:03,499 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr292REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-03-04 09:36:03,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:36:03,499 INFO L85 PathProgramCache]: Analyzing trace with hash 2083823031, now seen corresponding path program 1 times [2025-03-04 09:36:03,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:36:03,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [267037755] [2025-03-04 09:36:03,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:36:03,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:03,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:36:03,501 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:36:03,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-04 09:36:03,597 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 09:36:03,617 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 09:36:03,617 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:36:03,617 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:36:03,619 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 09:36:03,621 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:36:03,626 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 [2025-03-04 09:36:03,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:36:03,685 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:36:03,685 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:36:03,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267037755] [2025-03-04 09:36:03,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267037755] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:36:03,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:36:03,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 09:36:03,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183403280] [2025-03-04 09:36:03,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:36:03,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 09:36:03,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:36:03,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 09:36:03,685 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 09:36:03,686 INFO L87 Difference]: Start difference. First operand 1580 states and 2005 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:36:05,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 09:36:05,696 INFO L93 Difference]: Finished difference Result 2127 states and 2594 transitions. [2025-03-04 09:36:05,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 09:36:05,697 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2025-03-04 09:36:05,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 09:36:05,701 INFO L225 Difference]: With dead ends: 2127 [2025-03-04 09:36:05,702 INFO L226 Difference]: Without dead ends: 2127 [2025-03-04 09:36:05,702 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:36:05,704 INFO L435 NwaCegarLoop]: 993 mSDtfsCounter, 611 mSDsluCounter, 1266 mSDsCounter, 0 mSdLazyCounter, 1501 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 2259 SdHoareTripleChecker+Invalid, 1516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-03-04 09:36:05,704 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [618 Valid, 2259 Invalid, 1516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1501 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-03-04 09:36:05,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2127 states. [2025-03-04 09:36:05,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2127 to 1773. [2025-03-04 09:36:05,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1773 states, 1213 states have (on average 1.9175597691673536) internal successors, (2326), 1749 states have internal predecessors, (2326), 23 states have call successors, (23), 5 states have call predecessors, (23), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-04 09:36:05,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1773 states to 1773 states and 2368 transitions. [2025-03-04 09:36:05,727 INFO L78 Accepts]: Start accepts. Automaton has 1773 states and 2368 transitions. Word has length 12 [2025-03-04 09:36:05,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 09:36:05,727 INFO L471 AbstractCegarLoop]: Abstraction has 1773 states and 2368 transitions. [2025-03-04 09:36:05,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:36:05,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1773 states and 2368 transitions. [2025-03-04 09:36:05,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-03-04 09:36:05,728 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 09:36:05,728 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:36:05,736 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-04 09:36:05,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:05,930 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-03-04 09:36:05,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:36:05,930 INFO L85 PathProgramCache]: Analyzing trace with hash -228522914, now seen corresponding path program 1 times [2025-03-04 09:36:05,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:36:05,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2137738364] [2025-03-04 09:36:05,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:36:05,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:05,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:36:05,932 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:36:05,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-04 09:36:06,030 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-04 09:36:06,046 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-04 09:36:06,047 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:36:06,047 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:36:06,048 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 09:36:06,050 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:36:06,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:36:06,088 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:36:06,088 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:36:06,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137738364] [2025-03-04 09:36:06,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2137738364] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:36:06,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:36:06,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:36:06,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440508541] [2025-03-04 09:36:06,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:36:06,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 09:36:06,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:36:06,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 09:36:06,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 09:36:06,089 INFO L87 Difference]: Start difference. First operand 1773 states and 2368 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:36:06,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 09:36:06,631 INFO L93 Difference]: Finished difference Result 2139 states and 2640 transitions. [2025-03-04 09:36:06,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 09:36:06,631 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2025-03-04 09:36:06,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 09:36:06,636 INFO L225 Difference]: With dead ends: 2139 [2025-03-04 09:36:06,636 INFO L226 Difference]: Without dead ends: 2139 [2025-03-04 09:36:06,636 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:36:06,637 INFO L435 NwaCegarLoop]: 1460 mSDtfsCounter, 611 mSDsluCounter, 2474 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 3934 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-04 09:36:06,637 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [616 Valid, 3934 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-04 09:36:06,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2139 states. [2025-03-04 09:36:06,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2139 to 1788. [2025-03-04 09:36:06,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1788 states, 1227 states have (on average 1.9046454767726162) internal successors, (2337), 1763 states have internal predecessors, (2337), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-03-04 09:36:06,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1788 states to 1788 states and 2381 transitions. [2025-03-04 09:36:06,662 INFO L78 Accepts]: Start accepts. Automaton has 1788 states and 2381 transitions. Word has length 13 [2025-03-04 09:36:06,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 09:36:06,662 INFO L471 AbstractCegarLoop]: Abstraction has 1788 states and 2381 transitions. [2025-03-04 09:36:06,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:36:06,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1788 states and 2381 transitions. [2025-03-04 09:36:06,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-03-04 09:36:06,663 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 09:36:06,663 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:36:06,671 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-04 09:36:06,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:06,864 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr268REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-03-04 09:36:06,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:36:06,864 INFO L85 PathProgramCache]: Analyzing trace with hash 173960522, now seen corresponding path program 1 times [2025-03-04 09:36:06,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:36:06,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [420723654] [2025-03-04 09:36:06,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:36:06,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:06,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:36:06,868 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:36:06,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-04 09:36:06,994 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-04 09:36:07,012 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-04 09:36:07,012 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:36:07,012 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:36:07,015 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 09:36:07,016 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:36:07,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:36:07,033 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:36:07,033 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:36:07,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420723654] [2025-03-04 09:36:07,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420723654] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:36:07,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:36:07,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:36:07,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170663383] [2025-03-04 09:36:07,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:36:07,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 09:36:07,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:36:07,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 09:36:07,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 09:36:07,034 INFO L87 Difference]: Start difference. First operand 1788 states and 2381 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2025-03-04 09:36:07,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 09:36:07,082 INFO L93 Difference]: Finished difference Result 1716 states and 2258 transitions. [2025-03-04 09:36:07,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 09:36:07,082 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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 [2025-03-04 09:36:07,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 09:36:07,087 INFO L225 Difference]: With dead ends: 1716 [2025-03-04 09:36:07,087 INFO L226 Difference]: Without dead ends: 1716 [2025-03-04 09:36:07,088 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:36:07,088 INFO L435 NwaCegarLoop]: 1174 mSDtfsCounter, 45 mSDsluCounter, 2325 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3499 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 09:36:07,089 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3499 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 09:36:07,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2025-03-04 09:36:07,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 1716. [2025-03-04 09:36:07,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1716 states, 1174 states have (on average 1.8858603066439523) internal successors, (2214), 1691 states have internal predecessors, (2214), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-03-04 09:36:07,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1716 states to 1716 states and 2258 transitions. [2025-03-04 09:36:07,119 INFO L78 Accepts]: Start accepts. Automaton has 1716 states and 2258 transitions. Word has length 13 [2025-03-04 09:36:07,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 09:36:07,119 INFO L471 AbstractCegarLoop]: Abstraction has 1716 states and 2258 transitions. [2025-03-04 09:36:07,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2025-03-04 09:36:07,120 INFO L276 IsEmpty]: Start isEmpty. Operand 1716 states and 2258 transitions. [2025-03-04 09:36:07,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-03-04 09:36:07,121 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 09:36:07,121 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:36:07,129 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-04 09:36:07,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:07,322 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-03-04 09:36:07,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:36:07,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1777616277, now seen corresponding path program 1 times [2025-03-04 09:36:07,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:36:07,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [90275536] [2025-03-04 09:36:07,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:36:07,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:07,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:36:07,325 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:36:07,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-04 09:36:07,432 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-04 09:36:07,452 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-04 09:36:07,453 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:36:07,453 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:36:07,455 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 09:36:07,457 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:36:07,461 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:36:07,462 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:36:07,462 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:36:07,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-03-04 09:36:07,502 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-04 09:36:07,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-03-04 09:36:07,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:36:07,515 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:36:07,515 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:36:07,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90275536] [2025-03-04 09:36:07,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [90275536] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:36:07,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:36:07,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:36:07,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409724400] [2025-03-04 09:36:07,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:36:07,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 09:36:07,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:36:07,515 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 09:36:07,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 09:36:07,515 INFO L87 Difference]: Start difference. First operand 1716 states and 2258 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2025-03-04 09:36:07,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 09:36:07,749 INFO L93 Difference]: Finished difference Result 2429 states and 2824 transitions. [2025-03-04 09:36:07,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 09:36:07,750 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 16 [2025-03-04 09:36:07,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 09:36:07,756 INFO L225 Difference]: With dead ends: 2429 [2025-03-04 09:36:07,756 INFO L226 Difference]: Without dead ends: 2429 [2025-03-04 09:36:07,757 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:36:07,757 INFO L435 NwaCegarLoop]: 1379 mSDtfsCounter, 1061 mSDsluCounter, 2528 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1075 SdHoareTripleChecker+Valid, 3907 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 09:36:07,758 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1075 Valid, 3907 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 09:36:07,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2429 states. [2025-03-04 09:36:07,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2429 to 1401. [2025-03-04 09:36:07,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1401 states, 861 states have (on average 1.9036004645760742) internal successors, (1639), 1378 states have internal predecessors, (1639), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-04 09:36:07,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1401 states to 1401 states and 1679 transitions. [2025-03-04 09:36:07,775 INFO L78 Accepts]: Start accepts. Automaton has 1401 states and 1679 transitions. Word has length 16 [2025-03-04 09:36:07,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 09:36:07,775 INFO L471 AbstractCegarLoop]: Abstraction has 1401 states and 1679 transitions. [2025-03-04 09:36:07,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2025-03-04 09:36:07,775 INFO L276 IsEmpty]: Start isEmpty. Operand 1401 states and 1679 transitions. [2025-03-04 09:36:07,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-03-04 09:36:07,776 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 09:36:07,776 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:36:07,783 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-04 09:36:07,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:07,977 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr599REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-03-04 09:36:07,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:36:07,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1440762696, now seen corresponding path program 1 times [2025-03-04 09:36:07,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:36:07,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1835010788] [2025-03-04 09:36:07,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:36:07,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:07,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:36:07,984 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:36:07,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-04 09:36:08,116 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-04 09:36:08,143 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-04 09:36:08,143 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:36:08,143 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:36:08,152 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 09:36:08,154 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:36:08,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:36:08,192 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:36:08,192 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:36:08,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835010788] [2025-03-04 09:36:08,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835010788] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:36:08,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:36:08,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 09:36:08,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505054933] [2025-03-04 09:36:08,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:36:08,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 09:36:08,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:36:08,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 09:36:08,194 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 09:36:08,194 INFO L87 Difference]: Start difference. First operand 1401 states and 1679 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:36:09,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 09:36:09,827 INFO L93 Difference]: Finished difference Result 1780 states and 2153 transitions. [2025-03-04 09:36:09,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 09:36:09,828 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2025-03-04 09:36:09,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 09:36:09,832 INFO L225 Difference]: With dead ends: 1780 [2025-03-04 09:36:09,832 INFO L226 Difference]: Without dead ends: 1780 [2025-03-04 09:36:09,832 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:36:09,833 INFO L435 NwaCegarLoop]: 744 mSDtfsCounter, 883 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 1321 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 886 SdHoareTripleChecker+Valid, 1637 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-03-04 09:36:09,833 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [886 Valid, 1637 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1321 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-03-04 09:36:09,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1780 states. [2025-03-04 09:36:09,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1780 to 1378. [2025-03-04 09:36:09,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1378 states, 861 states have (on average 1.8501742160278745) internal successors, (1593), 1355 states have internal predecessors, (1593), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-04 09:36:09,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 1633 transitions. [2025-03-04 09:36:09,848 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 1633 transitions. Word has length 18 [2025-03-04 09:36:09,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 09:36:09,848 INFO L471 AbstractCegarLoop]: Abstraction has 1378 states and 1633 transitions. [2025-03-04 09:36:09,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:36:09,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 1633 transitions. [2025-03-04 09:36:09,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-03-04 09:36:09,849 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 09:36:09,849 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:36:09,857 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-04 09:36:10,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:10,050 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr600REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-03-04 09:36:10,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:36:10,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1440762697, now seen corresponding path program 1 times [2025-03-04 09:36:10,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:36:10,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2142865544] [2025-03-04 09:36:10,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:36:10,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:10,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:36:10,052 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:36:10,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-04 09:36:10,163 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-04 09:36:10,190 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-04 09:36:10,190 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:36:10,190 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:36:10,194 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-04 09:36:10,195 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:36:10,204 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 [2025-03-04 09:36:10,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:36:10,270 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:36:10,270 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:36:10,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142865544] [2025-03-04 09:36:10,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142865544] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:36:10,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:36:10,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:36:10,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904630721] [2025-03-04 09:36:10,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:36:10,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:36:10,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:36:10,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:36:10,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:36:10,271 INFO L87 Difference]: Start difference. First operand 1378 states and 1633 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:36:12,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 09:36:12,897 INFO L93 Difference]: Finished difference Result 2019 states and 2397 transitions. [2025-03-04 09:36:12,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 09:36:12,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2025-03-04 09:36:12,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 09:36:12,901 INFO L225 Difference]: With dead ends: 2019 [2025-03-04 09:36:12,901 INFO L226 Difference]: Without dead ends: 2019 [2025-03-04 09:36:12,902 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-04 09:36:12,902 INFO L435 NwaCegarLoop]: 1334 mSDtfsCounter, 738 mSDsluCounter, 2194 mSDsCounter, 0 mSdLazyCounter, 2339 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 3528 SdHoareTripleChecker+Invalid, 2362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2025-03-04 09:36:12,902 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [740 Valid, 3528 Invalid, 2362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 2339 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2025-03-04 09:36:12,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2019 states. [2025-03-04 09:36:12,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2019 to 1492. [2025-03-04 09:36:12,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1492 states, 975 states have (on average 1.7753846153846153) internal successors, (1731), 1469 states have internal predecessors, (1731), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-04 09:36:12,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 1771 transitions. [2025-03-04 09:36:12,917 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 1771 transitions. Word has length 18 [2025-03-04 09:36:12,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 09:36:12,917 INFO L471 AbstractCegarLoop]: Abstraction has 1492 states and 1771 transitions. [2025-03-04 09:36:12,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:36:12,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 1771 transitions. [2025-03-04 09:36:12,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-03-04 09:36:12,918 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 09:36:12,918 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:36:12,926 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-03-04 09:36:13,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:13,118 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr600REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-03-04 09:36:13,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:36:13,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1156937947, now seen corresponding path program 1 times [2025-03-04 09:36:13,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:36:13,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [496884046] [2025-03-04 09:36:13,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:36:13,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:13,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:36:13,122 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:36:13,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-04 09:36:13,232 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-04 09:36:13,286 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-04 09:36:13,286 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:36:13,286 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:36:13,294 INFO L256 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-04 09:36:13,295 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:36:13,302 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 [2025-03-04 09:36:13,453 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:36:13,453 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 09:36:13,838 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:36:13,838 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:36:13,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496884046] [2025-03-04 09:36:13,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496884046] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 09:36:13,839 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 09:36:13,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2025-03-04 09:36:13,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441567233] [2025-03-04 09:36:13,839 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 09:36:13,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 09:36:13,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:36:13,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 09:36:13,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-04 09:36:13,840 INFO L87 Difference]: Start difference. First operand 1492 states and 1771 transitions. Second operand has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 10 states have internal predecessors, (70), 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) [2025-03-04 09:36:21,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 09:36:21,164 INFO L93 Difference]: Finished difference Result 2375 states and 2887 transitions. [2025-03-04 09:36:21,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 09:36:21,164 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 10 states have internal predecessors, (70), 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 37 [2025-03-04 09:36:21,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 09:36:21,168 INFO L225 Difference]: With dead ends: 2375 [2025-03-04 09:36:21,168 INFO L226 Difference]: Without dead ends: 2375 [2025-03-04 09:36:21,169 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2025-03-04 09:36:21,169 INFO L435 NwaCegarLoop]: 1386 mSDtfsCounter, 2368 mSDsluCounter, 4084 mSDsCounter, 0 mSdLazyCounter, 3997 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2370 SdHoareTripleChecker+Valid, 5470 SdHoareTripleChecker+Invalid, 4027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 3997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2025-03-04 09:36:21,169 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2370 Valid, 5470 Invalid, 4027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 3997 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2025-03-04 09:36:21,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2375 states. [2025-03-04 09:36:21,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2375 to 1656. [2025-03-04 09:36:21,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1656 states, 1139 states have (on average 1.723441615452151) internal successors, (1963), 1633 states have internal predecessors, (1963), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-04 09:36:21,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1656 states to 1656 states and 2003 transitions. [2025-03-04 09:36:21,183 INFO L78 Accepts]: Start accepts. Automaton has 1656 states and 2003 transitions. Word has length 37 [2025-03-04 09:36:21,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 09:36:21,183 INFO L471 AbstractCegarLoop]: Abstraction has 1656 states and 2003 transitions. [2025-03-04 09:36:21,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 10 states have internal predecessors, (70), 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) [2025-03-04 09:36:21,183 INFO L276 IsEmpty]: Start isEmpty. Operand 1656 states and 2003 transitions. [2025-03-04 09:36:21,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-03-04 09:36:21,184 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 09:36:21,184 INFO L218 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] [2025-03-04 09:36:21,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-03-04 09:36:21,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:21,385 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-03-04 09:36:21,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:36:21,385 INFO L85 PathProgramCache]: Analyzing trace with hash 309519805, now seen corresponding path program 1 times [2025-03-04 09:36:21,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:36:21,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1951487660] [2025-03-04 09:36:21,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:36:21,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:21,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:36:21,387 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:36:21,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-04 09:36:21,501 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-04 09:36:21,561 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-04 09:36:21,561 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:36:21,561 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:36:21,569 INFO L256 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 09:36:21,572 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:36:21,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:36:21,599 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:36:21,599 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:36:21,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951487660] [2025-03-04 09:36:21,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951487660] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:36:21,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:36:21,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:36:21,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061114782] [2025-03-04 09:36:21,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:36:21,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 09:36:21,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:36:21,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 09:36:21,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 09:36:21,600 INFO L87 Difference]: Start difference. First operand 1656 states and 2003 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:36:21,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 09:36:21,662 INFO L93 Difference]: Finished difference Result 1345 states and 1567 transitions. [2025-03-04 09:36:21,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 09:36:21,663 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2025-03-04 09:36:21,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 09:36:21,667 INFO L225 Difference]: With dead ends: 1345 [2025-03-04 09:36:21,668 INFO L226 Difference]: Without dead ends: 1345 [2025-03-04 09:36:21,668 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:36:21,668 INFO L435 NwaCegarLoop]: 1111 mSDtfsCounter, 56 mSDsluCounter, 2149 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 3260 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 09:36:21,668 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 3260 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 09:36:21,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1345 states. [2025-03-04 09:36:21,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1345 to 1343. [2025-03-04 09:36:21,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1343 states, 849 states have (on average 1.7962308598351002) internal successors, (1525), 1320 states have internal predecessors, (1525), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-04 09:36:21,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1343 states to 1343 states and 1565 transitions. [2025-03-04 09:36:21,681 INFO L78 Accepts]: Start accepts. Automaton has 1343 states and 1565 transitions. Word has length 53 [2025-03-04 09:36:21,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 09:36:21,681 INFO L471 AbstractCegarLoop]: Abstraction has 1343 states and 1565 transitions. [2025-03-04 09:36:21,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:36:21,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1343 states and 1565 transitions. [2025-03-04 09:36:21,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2025-03-04 09:36:21,683 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 09:36:21,683 INFO L218 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] [2025-03-04 09:36:21,692 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-03-04 09:36:21,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:21,887 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-03-04 09:36:21,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:36:21,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1787766651, now seen corresponding path program 1 times [2025-03-04 09:36:21,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:36:21,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2078814169] [2025-03-04 09:36:21,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:36:21,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:21,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:36:21,889 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:36:21,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-04 09:36:22,032 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-03-04 09:36:22,125 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-03-04 09:36:22,125 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:36:22,125 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:36:22,134 INFO L256 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-04 09:36:22,136 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:36:22,169 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2025-03-04 09:36:22,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2025-03-04 09:36:22,191 INFO L349 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2025-03-04 09:36:22,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 17 [2025-03-04 09:36:22,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:36:22,399 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:36:22,399 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:36:22,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078814169] [2025-03-04 09:36:22,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078814169] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:36:22,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:36:22,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 09:36:22,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461192580] [2025-03-04 09:36:22,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:36:22,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:36:22,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:36:22,400 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:36:22,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:36:22,400 INFO L87 Difference]: Start difference. First operand 1343 states and 1565 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:36:24,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 09:36:24,433 INFO L93 Difference]: Finished difference Result 2446 states and 2864 transitions. [2025-03-04 09:36:24,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:36:24,433 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2025-03-04 09:36:24,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 09:36:24,437 INFO L225 Difference]: With dead ends: 2446 [2025-03-04 09:36:24,437 INFO L226 Difference]: Without dead ends: 2446 [2025-03-04 09:36:24,437 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:36:24,437 INFO L435 NwaCegarLoop]: 879 mSDtfsCounter, 962 mSDsluCounter, 1838 mSDsCounter, 0 mSdLazyCounter, 1989 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 2717 SdHoareTripleChecker+Invalid, 1992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-03-04 09:36:24,437 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [962 Valid, 2717 Invalid, 1992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1989 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-03-04 09:36:24,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2446 states. [2025-03-04 09:36:24,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2446 to 1805. [2025-03-04 09:36:24,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1805 states, 1295 states have (on average 1.7806949806949808) internal successors, (2306), 1769 states have internal predecessors, (2306), 35 states have call successors, (35), 9 states have call predecessors, (35), 7 states have return successors, (31), 28 states have call predecessors, (31), 31 states have call successors, (31) [2025-03-04 09:36:24,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1805 states to 1805 states and 2372 transitions. [2025-03-04 09:36:24,453 INFO L78 Accepts]: Start accepts. Automaton has 1805 states and 2372 transitions. Word has length 61 [2025-03-04 09:36:24,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 09:36:24,454 INFO L471 AbstractCegarLoop]: Abstraction has 1805 states and 2372 transitions. [2025-03-04 09:36:24,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:36:24,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1805 states and 2372 transitions. [2025-03-04 09:36:24,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2025-03-04 09:36:24,454 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 09:36:24,455 INFO L218 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] [2025-03-04 09:36:24,467 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-03-04 09:36:24,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:24,659 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-03-04 09:36:24,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:36:24,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1787766650, now seen corresponding path program 1 times [2025-03-04 09:36:24,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:36:24,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1958084782] [2025-03-04 09:36:24,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:36:24,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:24,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:36:24,661 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:36:24,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-04 09:36:24,781 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-03-04 09:36:24,854 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-03-04 09:36:24,855 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:36:24,855 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:36:24,864 INFO L256 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-04 09:36:24,866 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:36:24,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 09:36:24,896 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 [2025-03-04 09:36:24,942 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2025-03-04 09:36:24,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2025-03-04 09:36:25,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:36:25,356 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:36:25,356 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:36:25,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958084782] [2025-03-04 09:36:25,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1958084782] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:36:25,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:36:25,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:36:25,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419062050] [2025-03-04 09:36:25,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:36:25,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:36:25,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:36:25,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:36:25,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:36:25,357 INFO L87 Difference]: Start difference. First operand 1805 states and 2372 transitions. Second operand has 6 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:36:28,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 09:36:28,049 INFO L93 Difference]: Finished difference Result 1810 states and 2378 transitions. [2025-03-04 09:36:28,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 09:36:28,049 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2025-03-04 09:36:28,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 09:36:28,052 INFO L225 Difference]: With dead ends: 1810 [2025-03-04 09:36:28,052 INFO L226 Difference]: Without dead ends: 1810 [2025-03-04 09:36:28,052 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2025-03-04 09:36:28,053 INFO L435 NwaCegarLoop]: 1098 mSDtfsCounter, 77 mSDsluCounter, 2137 mSDsCounter, 0 mSdLazyCounter, 2389 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 3235 SdHoareTripleChecker+Invalid, 2391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2025-03-04 09:36:28,053 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 3235 Invalid, 2391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2389 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2025-03-04 09:36:28,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1810 states. [2025-03-04 09:36:28,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1810 to 1810. [2025-03-04 09:36:28,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1810 states, 1299 states have (on average 1.7782909930715936) internal successors, (2310), 1773 states have internal predecessors, (2310), 36 states have call successors, (36), 10 states have call predecessors, (36), 7 states have return successors, (32), 28 states have call predecessors, (32), 32 states have call successors, (32) [2025-03-04 09:36:28,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1810 states to 1810 states and 2378 transitions. [2025-03-04 09:36:28,074 INFO L78 Accepts]: Start accepts. Automaton has 1810 states and 2378 transitions. Word has length 61 [2025-03-04 09:36:28,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 09:36:28,075 INFO L471 AbstractCegarLoop]: Abstraction has 1810 states and 2378 transitions. [2025-03-04 09:36:28,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:36:28,076 INFO L276 IsEmpty]: Start isEmpty. Operand 1810 states and 2378 transitions. [2025-03-04 09:36:28,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-03-04 09:36:28,076 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 09:36:28,076 INFO L218 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] [2025-03-04 09:36:28,095 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-03-04 09:36:28,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:28,277 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-03-04 09:36:28,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:36:28,278 INFO L85 PathProgramCache]: Analyzing trace with hash -735543096, now seen corresponding path program 1 times [2025-03-04 09:36:28,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:36:28,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [465621839] [2025-03-04 09:36:28,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:36:28,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:28,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:36:28,280 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:36:28,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-04 09:36:28,421 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-04 09:36:28,492 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-04 09:36:28,492 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:36:28,492 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:36:28,504 INFO L256 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-04 09:36:28,506 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:36:28,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:36:28,600 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:36:28,600 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:36:28,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465621839] [2025-03-04 09:36:28,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465621839] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:36:28,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:36:28,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-04 09:36:28,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200148355] [2025-03-04 09:36:28,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:36:28,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 09:36:28,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:36:28,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 09:36:28,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-04 09:36:28,601 INFO L87 Difference]: Start difference. First operand 1810 states and 2378 transitions. Second operand has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:36:28,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 09:36:28,663 INFO L93 Difference]: Finished difference Result 1818 states and 2386 transitions. [2025-03-04 09:36:28,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 09:36:28,664 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2025-03-04 09:36:28,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 09:36:28,666 INFO L225 Difference]: With dead ends: 1818 [2025-03-04 09:36:28,666 INFO L226 Difference]: Without dead ends: 1818 [2025-03-04 09:36:28,666 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-03-04 09:36:28,666 INFO L435 NwaCegarLoop]: 1119 mSDtfsCounter, 25 mSDsluCounter, 4545 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 5664 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 09:36:28,666 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 5664 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 09:36:28,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1818 states. [2025-03-04 09:36:28,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1818 to 1817. [2025-03-04 09:36:28,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1817 states, 1304 states have (on average 1.7753067484662577) internal successors, (2315), 1779 states have internal predecessors, (2315), 37 states have call successors, (37), 11 states have call predecessors, (37), 8 states have return successors, (33), 28 states have call predecessors, (33), 33 states have call successors, (33) [2025-03-04 09:36:28,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1817 states to 1817 states and 2385 transitions. [2025-03-04 09:36:28,681 INFO L78 Accepts]: Start accepts. Automaton has 1817 states and 2385 transitions. Word has length 69 [2025-03-04 09:36:28,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 09:36:28,682 INFO L471 AbstractCegarLoop]: Abstraction has 1817 states and 2385 transitions. [2025-03-04 09:36:28,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:36:28,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1817 states and 2385 transitions. [2025-03-04 09:36:28,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2025-03-04 09:36:28,682 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 09:36:28,682 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:36:28,693 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-03-04 09:36:28,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:28,883 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr517REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-03-04 09:36:28,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:36:28,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1439500537, now seen corresponding path program 1 times [2025-03-04 09:36:28,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:36:28,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1905686528] [2025-03-04 09:36:28,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:36:28,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:28,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:36:28,886 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:36:28,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-03-04 09:36:29,023 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-03-04 09:36:29,103 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-03-04 09:36:29,104 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:36:29,104 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:36:29,114 INFO L256 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 09:36:29,116 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:36:29,213 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2025-03-04 09:36:29,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2025-03-04 09:36:29,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:36:29,216 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:36:29,216 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:36:29,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905686528] [2025-03-04 09:36:29,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1905686528] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:36:29,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:36:29,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:36:29,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122482054] [2025-03-04 09:36:29,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:36:29,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:36:29,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:36:29,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:36:29,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:36:29,218 INFO L87 Difference]: Start difference. First operand 1817 states and 2385 transitions. Second operand has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 09:36:33,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-04 09:36:36,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 09:36:36,223 INFO L93 Difference]: Finished difference Result 2208 states and 2891 transitions. [2025-03-04 09:36:36,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 09:36:36,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 72 [2025-03-04 09:36:36,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 09:36:36,227 INFO L225 Difference]: With dead ends: 2208 [2025-03-04 09:36:36,227 INFO L226 Difference]: Without dead ends: 2208 [2025-03-04 09:36:36,227 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:36:36,227 INFO L435 NwaCegarLoop]: 693 mSDtfsCounter, 757 mSDsluCounter, 1417 mSDsCounter, 0 mSdLazyCounter, 1874 mSolverCounterSat, 29 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 2110 SdHoareTripleChecker+Invalid, 1906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1874 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2025-03-04 09:36:36,227 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 2110 Invalid, 1906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1874 Invalid, 3 Unknown, 0 Unchecked, 7.0s Time] [2025-03-04 09:36:36,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2208 states. [2025-03-04 09:36:36,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2208 to 1814. [2025-03-04 09:36:36,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1814 states, 1304 states have (on average 1.7707055214723926) internal successors, (2309), 1776 states have internal predecessors, (2309), 37 states have call successors, (37), 11 states have call predecessors, (37), 8 states have return successors, (33), 28 states have call predecessors, (33), 33 states have call successors, (33) [2025-03-04 09:36:36,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1814 states to 1814 states and 2379 transitions. [2025-03-04 09:36:36,245 INFO L78 Accepts]: Start accepts. Automaton has 1814 states and 2379 transitions. Word has length 72 [2025-03-04 09:36:36,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 09:36:36,245 INFO L471 AbstractCegarLoop]: Abstraction has 1814 states and 2379 transitions. [2025-03-04 09:36:36,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 09:36:36,246 INFO L276 IsEmpty]: Start isEmpty. Operand 1814 states and 2379 transitions. [2025-03-04 09:36:36,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2025-03-04 09:36:36,246 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 09:36:36,246 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:36:36,258 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-03-04 09:36:36,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:36,447 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr518REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-03-04 09:36:36,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:36:36,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1439500538, now seen corresponding path program 1 times [2025-03-04 09:36:36,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:36:36,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1987437351] [2025-03-04 09:36:36,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:36:36,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:36,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:36:36,449 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:36:36,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-03-04 09:36:36,589 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-03-04 09:36:36,664 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-03-04 09:36:36,664 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:36:36,664 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:36:36,674 INFO L256 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-04 09:36:36,676 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:36:36,683 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 [2025-03-04 09:36:36,984 WARN L873 $PredicateComparison]: unable to prove that (exists ((|alt_malloc_#res.base| (_ BitVec 32))) (and (= (store |c_old(#length)| |alt_malloc_#res.base| (select |c_#length| |alt_malloc_#res.base|)) |c_#length|) (= (_ bv0 1) (select |c_old(#valid)| |alt_malloc_#res.base|)))) is different from true [2025-03-04 09:36:36,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 09:36:36,998 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 [2025-03-04 09:36:37,007 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-03-04 09:36:37,007 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 [2025-03-04 09:36:37,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:36:37,010 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:36:37,010 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:36:37,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987437351] [2025-03-04 09:36:37,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987437351] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:36:37,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:36:37,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 09:36:37,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571678088] [2025-03-04 09:36:37,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:36:37,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 09:36:37,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:36:37,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 09:36:37,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=21, Unknown=1, NotChecked=8, Total=42 [2025-03-04 09:36:37,011 INFO L87 Difference]: Start difference. First operand 1814 states and 2379 transitions. Second operand has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 7 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 09:36:40,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 09:36:40,555 INFO L93 Difference]: Finished difference Result 2836 states and 3695 transitions. [2025-03-04 09:36:40,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 09:36:40,558 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 7 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 72 [2025-03-04 09:36:40,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 09:36:40,562 INFO L225 Difference]: With dead ends: 2836 [2025-03-04 09:36:40,562 INFO L226 Difference]: Without dead ends: 2836 [2025-03-04 09:36:40,562 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=28, Unknown=1, NotChecked=10, Total=56 [2025-03-04 09:36:40,562 INFO L435 NwaCegarLoop]: 1157 mSDtfsCounter, 1395 mSDsluCounter, 1738 mSDsCounter, 0 mSdLazyCounter, 3039 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1398 SdHoareTripleChecker+Valid, 2895 SdHoareTripleChecker+Invalid, 4980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 3039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1913 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2025-03-04 09:36:40,562 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1398 Valid, 2895 Invalid, 4980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 3039 Invalid, 0 Unknown, 1913 Unchecked, 3.5s Time] [2025-03-04 09:36:40,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2836 states. [2025-03-04 09:36:40,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2836 to 1806. [2025-03-04 09:36:40,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1806 states, 1304 states have (on average 1.758435582822086) internal successors, (2293), 1768 states have internal predecessors, (2293), 37 states have call successors, (37), 11 states have call predecessors, (37), 8 states have return successors, (33), 28 states have call predecessors, (33), 33 states have call successors, (33) [2025-03-04 09:36:40,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1806 states to 1806 states and 2363 transitions. [2025-03-04 09:36:40,580 INFO L78 Accepts]: Start accepts. Automaton has 1806 states and 2363 transitions. Word has length 72 [2025-03-04 09:36:40,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 09:36:40,581 INFO L471 AbstractCegarLoop]: Abstraction has 1806 states and 2363 transitions. [2025-03-04 09:36:40,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 7 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 09:36:40,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1806 states and 2363 transitions. [2025-03-04 09:36:40,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2025-03-04 09:36:40,581 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 09:36:40,581 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:36:40,592 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2025-03-04 09:36:40,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:40,782 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting alt_bzeroErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-03-04 09:36:40,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:36:40,782 INFO L85 PathProgramCache]: Analyzing trace with hash -530052229, now seen corresponding path program 1 times [2025-03-04 09:36:40,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:36:40,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1112865441] [2025-03-04 09:36:40,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:36:40,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:40,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:36:40,785 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:36:40,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-03-04 09:36:40,923 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-03-04 09:36:40,986 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-03-04 09:36:40,986 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:36:40,986 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:36:40,995 INFO L256 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-04 09:36:40,997 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:36:41,002 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 [2025-03-04 09:36:41,017 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 [2025-03-04 09:36:41,033 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 [2025-03-04 09:36:41,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:36:41,055 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:36:41,055 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:36:41,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112865441] [2025-03-04 09:36:41,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112865441] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:36:41,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:36:41,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-04 09:36:41,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925259054] [2025-03-04 09:36:41,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:36:41,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 09:36:41,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:36:41,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 09:36:41,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-04 09:36:41,056 INFO L87 Difference]: Start difference. First operand 1806 states and 2363 transitions. Second operand has 8 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 09:36:43,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 09:36:43,552 INFO L93 Difference]: Finished difference Result 1821 states and 2379 transitions. [2025-03-04 09:36:43,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 09:36:43,552 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 79 [2025-03-04 09:36:43,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 09:36:43,555 INFO L225 Difference]: With dead ends: 1821 [2025-03-04 09:36:43,555 INFO L226 Difference]: Without dead ends: 1821 [2025-03-04 09:36:43,555 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-03-04 09:36:43,556 INFO L435 NwaCegarLoop]: 1105 mSDtfsCounter, 16 mSDsluCounter, 3649 mSDsCounter, 0 mSdLazyCounter, 3036 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4754 SdHoareTripleChecker+Invalid, 3038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-03-04 09:36:43,556 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4754 Invalid, 3038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3036 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-03-04 09:36:43,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2025-03-04 09:36:43,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1820. [2025-03-04 09:36:43,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1820 states, 1316 states have (on average 1.7545592705167172) internal successors, (2309), 1780 states have internal predecessors, (2309), 37 states have call successors, (37), 13 states have call predecessors, (37), 10 states have return successors, (33), 28 states have call predecessors, (33), 33 states have call successors, (33) [2025-03-04 09:36:43,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1820 states to 1820 states and 2379 transitions. [2025-03-04 09:36:43,573 INFO L78 Accepts]: Start accepts. Automaton has 1820 states and 2379 transitions. Word has length 79 [2025-03-04 09:36:43,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 09:36:43,573 INFO L471 AbstractCegarLoop]: Abstraction has 1820 states and 2379 transitions. [2025-03-04 09:36:43,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 09:36:43,573 INFO L276 IsEmpty]: Start isEmpty. Operand 1820 states and 2379 transitions. [2025-03-04 09:36:43,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-03-04 09:36:43,574 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 09:36:43,574 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:36:43,584 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2025-03-04 09:36:43,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:43,774 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting alt_bzeroErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-03-04 09:36:43,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:36:43,775 INFO L85 PathProgramCache]: Analyzing trace with hash 748250089, now seen corresponding path program 1 times [2025-03-04 09:36:43,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:36:43,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [800886780] [2025-03-04 09:36:43,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:36:43,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:43,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:36:43,777 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:36:43,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-03-04 09:36:43,924 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-03-04 09:36:43,993 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-03-04 09:36:43,994 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:36:43,994 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:36:44,003 INFO L256 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-04 09:36:44,006 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:36:44,017 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 [2025-03-04 09:36:44,042 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 [2025-03-04 09:36:44,046 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 [2025-03-04 09:36:44,070 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 [2025-03-04 09:36:44,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:36:44,116 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:36:44,116 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:36:44,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800886780] [2025-03-04 09:36:44,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800886780] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:36:44,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:36:44,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-04 09:36:44,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520755670] [2025-03-04 09:36:44,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:36:44,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 09:36:44,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:36:44,117 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 09:36:44,117 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-04 09:36:44,117 INFO L87 Difference]: Start difference. First operand 1820 states and 2379 transitions. Second operand has 9 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 09:36:47,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 09:36:47,512 INFO L93 Difference]: Finished difference Result 1820 states and 2377 transitions. [2025-03-04 09:36:47,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 09:36:47,513 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 80 [2025-03-04 09:36:47,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 09:36:47,516 INFO L225 Difference]: With dead ends: 1820 [2025-03-04 09:36:47,517 INFO L226 Difference]: Without dead ends: 1820 [2025-03-04 09:36:47,517 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-03-04 09:36:47,518 INFO L435 NwaCegarLoop]: 1101 mSDtfsCounter, 13 mSDsluCounter, 4566 mSDsCounter, 0 mSdLazyCounter, 3234 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 5667 SdHoareTripleChecker+Invalid, 3235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2025-03-04 09:36:47,518 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 5667 Invalid, 3235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3234 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2025-03-04 09:36:47,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1820 states. [2025-03-04 09:36:47,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1820 to 1820. [2025-03-04 09:36:47,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1820 states, 1316 states have (on average 1.7530395136778116) internal successors, (2307), 1780 states have internal predecessors, (2307), 37 states have call successors, (37), 13 states have call predecessors, (37), 10 states have return successors, (33), 28 states have call predecessors, (33), 33 states have call successors, (33) [2025-03-04 09:36:47,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1820 states to 1820 states and 2377 transitions. [2025-03-04 09:36:47,532 INFO L78 Accepts]: Start accepts. Automaton has 1820 states and 2377 transitions. Word has length 80 [2025-03-04 09:36:47,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 09:36:47,532 INFO L471 AbstractCegarLoop]: Abstraction has 1820 states and 2377 transitions. [2025-03-04 09:36:47,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 09:36:47,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1820 states and 2377 transitions. [2025-03-04 09:36:47,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-03-04 09:36:47,533 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 09:36:47,533 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:36:47,543 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2025-03-04 09:36:47,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:47,733 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr509REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-03-04 09:36:47,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:36:47,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1762812187, now seen corresponding path program 1 times [2025-03-04 09:36:47,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:36:47,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [588445302] [2025-03-04 09:36:47,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:36:47,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:47,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:36:47,737 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:36:47,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-03-04 09:36:47,898 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-04 09:36:47,973 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-04 09:36:47,973 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:36:47,973 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:36:47,984 INFO L256 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-04 09:36:47,986 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:36:47,990 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 [2025-03-04 09:36:48,048 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 [2025-03-04 09:36:48,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:36:48,057 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:36:48,057 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:36:48,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588445302] [2025-03-04 09:36:48,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588445302] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:36:48,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:36:48,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-04 09:36:48,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672417020] [2025-03-04 09:36:48,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:36:48,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 09:36:48,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:36:48,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 09:36:48,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-04 09:36:48,059 INFO L87 Difference]: Start difference. First operand 1820 states and 2377 transitions. Second operand has 8 states, 6 states have (on average 13.5) internal successors, (81), 7 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 09:36:50,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 09:36:50,980 INFO L93 Difference]: Finished difference Result 1851 states and 2417 transitions. [2025-03-04 09:36:50,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 09:36:50,982 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 13.5) internal successors, (81), 7 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 87 [2025-03-04 09:36:50,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 09:36:50,985 INFO L225 Difference]: With dead ends: 1851 [2025-03-04 09:36:50,985 INFO L226 Difference]: Without dead ends: 1851 [2025-03-04 09:36:50,985 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2025-03-04 09:36:50,986 INFO L435 NwaCegarLoop]: 1067 mSDtfsCounter, 43 mSDsluCounter, 4203 mSDsCounter, 0 mSdLazyCounter, 2474 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 5270 SdHoareTripleChecker+Invalid, 2491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2025-03-04 09:36:50,986 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 5270 Invalid, 2491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2474 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2025-03-04 09:36:50,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1851 states. [2025-03-04 09:36:50,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1851 to 1834. [2025-03-04 09:36:50,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1834 states, 1328 states have (on average 1.7492469879518073) internal successors, (2323), 1792 states have internal predecessors, (2323), 37 states have call successors, (37), 13 states have call predecessors, (37), 12 states have return successors, (35), 30 states have call predecessors, (35), 33 states have call successors, (35) [2025-03-04 09:36:50,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1834 states to 1834 states and 2395 transitions. [2025-03-04 09:36:51,000 INFO L78 Accepts]: Start accepts. Automaton has 1834 states and 2395 transitions. Word has length 87 [2025-03-04 09:36:51,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 09:36:51,000 INFO L471 AbstractCegarLoop]: Abstraction has 1834 states and 2395 transitions. [2025-03-04 09:36:51,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 13.5) internal successors, (81), 7 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 09:36:51,000 INFO L276 IsEmpty]: Start isEmpty. Operand 1834 states and 2395 transitions. [2025-03-04 09:36:51,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-03-04 09:36:51,000 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 09:36:51,001 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:36:51,011 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-03-04 09:36:51,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:51,201 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr510REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-03-04 09:36:51,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:36:51,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1762812188, now seen corresponding path program 1 times [2025-03-04 09:36:51,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:36:51,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [320507106] [2025-03-04 09:36:51,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:36:51,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:51,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:36:51,204 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:36:51,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-03-04 09:36:51,355 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-04 09:36:51,430 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-04 09:36:51,430 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:36:51,430 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:36:51,440 INFO L256 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 09:36:51,442 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:36:51,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:36:51,468 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:36:51,468 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:36:51,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320507106] [2025-03-04 09:36:51,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320507106] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:36:51,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:36:51,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:36:51,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594072478] [2025-03-04 09:36:51,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:36:51,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:36:51,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:36:51,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:36:51,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:36:51,469 INFO L87 Difference]: Start difference. First operand 1834 states and 2395 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 09:36:51,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 09:36:51,505 INFO L93 Difference]: Finished difference Result 1836 states and 2395 transitions. [2025-03-04 09:36:51,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 09:36:51,505 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 87 [2025-03-04 09:36:51,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 09:36:51,507 INFO L225 Difference]: With dead ends: 1836 [2025-03-04 09:36:51,508 INFO L226 Difference]: Without dead ends: 1830 [2025-03-04 09:36:51,508 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:36:51,508 INFO L435 NwaCegarLoop]: 1110 mSDtfsCounter, 3 mSDsluCounter, 2211 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3321 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 09:36:51,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3321 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 09:36:51,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1830 states. [2025-03-04 09:36:51,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1830 to 1830. [2025-03-04 09:36:51,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1830 states, 1324 states have (on average 1.75) internal successors, (2317), 1790 states have internal predecessors, (2317), 37 states have call successors, (37), 13 states have call predecessors, (37), 12 states have return successors, (35), 28 states have call predecessors, (35), 33 states have call successors, (35) [2025-03-04 09:36:51,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1830 states to 1830 states and 2389 transitions. [2025-03-04 09:36:51,522 INFO L78 Accepts]: Start accepts. Automaton has 1830 states and 2389 transitions. Word has length 87 [2025-03-04 09:36:51,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 09:36:51,522 INFO L471 AbstractCegarLoop]: Abstraction has 1830 states and 2389 transitions. [2025-03-04 09:36:51,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 09:36:51,522 INFO L276 IsEmpty]: Start isEmpty. Operand 1830 states and 2389 transitions. [2025-03-04 09:36:51,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2025-03-04 09:36:51,523 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 09:36:51,523 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:36:51,534 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2025-03-04 09:36:51,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:51,724 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr509REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-03-04 09:36:51,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:36:51,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1611731403, now seen corresponding path program 1 times [2025-03-04 09:36:51,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:36:51,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1666828488] [2025-03-04 09:36:51,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:36:51,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:51,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:36:51,727 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:36:51,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-03-04 09:36:51,876 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-03-04 09:36:51,959 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-03-04 09:36:51,959 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:36:51,959 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:36:51,972 INFO L256 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 09:36:51,974 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:36:52,008 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:36:52,008 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 09:36:52,102 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:36:52,102 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:36:52,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666828488] [2025-03-04 09:36:52,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666828488] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 09:36:52,102 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 09:36:52,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-03-04 09:36:52,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223845966] [2025-03-04 09:36:52,102 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 09:36:52,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 09:36:52,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:36:52,103 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 09:36:52,103 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-03-04 09:36:52,103 INFO L87 Difference]: Start difference. First operand 1830 states and 2389 transitions. Second operand has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-04 09:36:52,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 09:36:52,247 INFO L93 Difference]: Finished difference Result 1856 states and 2419 transitions. [2025-03-04 09:36:52,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-04 09:36:52,250 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 88 [2025-03-04 09:36:52,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 09:36:52,255 INFO L225 Difference]: With dead ends: 1856 [2025-03-04 09:36:52,255 INFO L226 Difference]: Without dead ends: 1844 [2025-03-04 09:36:52,256 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2025-03-04 09:36:52,256 INFO L435 NwaCegarLoop]: 1110 mSDtfsCounter, 20 mSDsluCounter, 4418 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 5528 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 09:36:52,257 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 5528 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 09:36:52,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2025-03-04 09:36:52,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1838. [2025-03-04 09:36:52,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1332 states have (on average 1.746996996996997) internal successors, (2327), 1798 states have internal predecessors, (2327), 37 states have call successors, (37), 13 states have call predecessors, (37), 12 states have return successors, (35), 28 states have call predecessors, (35), 33 states have call successors, (35) [2025-03-04 09:36:52,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2399 transitions. [2025-03-04 09:36:52,279 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2399 transitions. Word has length 88 [2025-03-04 09:36:52,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 09:36:52,279 INFO L471 AbstractCegarLoop]: Abstraction has 1838 states and 2399 transitions. [2025-03-04 09:36:52,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-04 09:36:52,280 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2399 transitions. [2025-03-04 09:36:52,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2025-03-04 09:36:52,280 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 09:36:52,280 INFO L218 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:36:52,292 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2025-03-04 09:36:52,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:52,481 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr509REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-03-04 09:36:52,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:36:52,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1953428197, now seen corresponding path program 2 times [2025-03-04 09:36:52,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:36:52,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [530258645] [2025-03-04 09:36:52,482 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 09:36:52,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:36:52,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:36:52,483 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:36:52,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-03-04 09:36:52,643 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 91 statements into 2 equivalence classes.