./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version e2fb8bed 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_FNV_nondet_test1-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-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-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 112ef0f8366461020cac5f2ac7dec2d7e41f31b24e653cd7734885d2bb23b087 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 22:19:59,322 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 22:19:59,378 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-03-08 22:19:59,381 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 22:19:59,382 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 22:19:59,405 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 22:19:59,407 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 22:19:59,407 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 22:19:59,407 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 22:19:59,407 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 22:19:59,408 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 22:19:59,408 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 22:19:59,408 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 22:19:59,409 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 22:19:59,409 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 22:19:59,409 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 22:19:59,409 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 22:19:59,409 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 22:19:59,409 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 22:19:59,409 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 22:19:59,410 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 22:19:59,410 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 22:19:59,410 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-08 22:19:59,410 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-08 22:19:59,410 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 22:19:59,410 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 22:19:59,410 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-08 22:19:59,410 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 22:19:59,410 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 22:19:59,410 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 22:19:59,410 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 22:19:59,410 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 22:19:59,411 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 22:19:59,411 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 22:19:59,411 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 22:19:59,411 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 22:19:59,411 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:19:59,411 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 22:19:59,411 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 22:19:59,411 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 22:19:59,412 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 22:19:59,412 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 22:19:59,412 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 22:19:59,412 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 22:19:59,412 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 22:19:59,412 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-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 112ef0f8366461020cac5f2ac7dec2d7e41f31b24e653cd7734885d2bb23b087 [2025-03-08 22:19:59,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 22:19:59,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 22:19:59,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 22:19:59,641 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 22:19:59,641 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 22:19:59,642 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test1-2.i [2025-03-08 22:20:00,743 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e78bf5e77/18f9e2bdc511416eb47b49acd1808ce3/FLAG5d0a8ed68 [2025-03-08 22:20:01,058 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 22:20:01,060 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test1-2.i [2025-03-08 22:20:01,075 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e78bf5e77/18f9e2bdc511416eb47b49acd1808ce3/FLAG5d0a8ed68 [2025-03-08 22:20:01,315 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e78bf5e77/18f9e2bdc511416eb47b49acd1808ce3 [2025-03-08 22:20:01,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 22:20:01,318 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 22:20:01,319 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 22:20:01,319 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 22:20:01,322 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 22:20:01,322 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:20:01" (1/1) ... [2025-03-08 22:20:01,323 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1813544d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:20:01, skipping insertion in model container [2025-03-08 22:20:01,323 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:20:01" (1/1) ... [2025-03-08 22:20:01,354 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 22:20:01,628 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:01,653 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:01,657 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:01,660 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:01,668 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:01,679 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:01,680 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:01,681 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:01,682 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:01,684 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:01,685 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:01,687 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:01,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:20:01,702 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) [2025-03-08 22:20:01,703 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@97180a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:20:01, skipping insertion in model container [2025-03-08 22:20:01,703 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 22:20:01,703 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-03-08 22:20:01,704 INFO L158 Benchmark]: Toolchain (without parser) took 386.10ms. Allocated memory is still 142.6MB. Free memory was 108.9MB in the beginning and 91.1MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-08 22:20:01,705 INFO L158 Benchmark]: CDTParser took 0.96ms. Allocated memory is still 201.3MB. Free memory is still 126.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 22:20:01,705 INFO L158 Benchmark]: CACSL2BoogieTranslator took 383.86ms. Allocated memory is still 142.6MB. Free memory was 108.9MB in the beginning and 92.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-08 22:20:01,705 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.96ms. Allocated memory is still 201.3MB. Free memory is still 126.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 383.86ms. Allocated memory is still 142.6MB. Free memory was 108.9MB in the beginning and 92.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 753]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/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_FNV_nondet_test1-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-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-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 112ef0f8366461020cac5f2ac7dec2d7e41f31b24e653cd7734885d2bb23b087 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 22:20:03,284 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 22:20:03,351 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-03-08 22:20:03,355 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 22:20:03,355 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 22:20:03,375 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 22:20:03,376 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 22:20:03,377 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 22:20:03,377 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 22:20:03,377 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 22:20:03,378 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 22:20:03,378 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 22:20:03,378 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 22:20:03,378 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 22:20:03,378 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 22:20:03,379 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 22:20:03,379 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 22:20:03,379 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 22:20:03,379 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 22:20:03,379 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 22:20:03,379 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 22:20:03,379 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 22:20:03,379 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-08 22:20:03,380 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-08 22:20:03,380 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 22:20:03,380 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 22:20:03,380 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-08 22:20:03,380 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-08 22:20:03,380 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-08 22:20:03,380 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 22:20:03,380 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 22:20:03,381 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 22:20:03,381 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 22:20:03,381 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 22:20:03,381 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 22:20:03,381 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 22:20:03,381 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 22:20:03,381 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 22:20:03,381 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:20:03,381 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 22:20:03,381 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 22:20:03,381 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-08 22:20:03,381 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-08 22:20:03,382 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 22:20:03,382 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 22:20:03,382 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 22:20:03,382 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 22:20:03,382 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-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 112ef0f8366461020cac5f2ac7dec2d7e41f31b24e653cd7734885d2bb23b087 [2025-03-08 22:20:03,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 22:20:03,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 22:20:03,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 22:20:03,621 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 22:20:03,622 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 22:20:03,622 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test1-2.i [2025-03-08 22:20:04,747 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03ef2bc9e/f9541a6eb4454fa3b04e39c52a2fd030/FLAG4123a26bc [2025-03-08 22:20:05,003 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 22:20:05,004 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test1-2.i [2025-03-08 22:20:05,019 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03ef2bc9e/f9541a6eb4454fa3b04e39c52a2fd030/FLAG4123a26bc [2025-03-08 22:20:05,303 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03ef2bc9e/f9541a6eb4454fa3b04e39c52a2fd030 [2025-03-08 22:20:05,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 22:20:05,306 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 22:20:05,307 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 22:20:05,307 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 22:20:05,310 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 22:20:05,310 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:20:05" (1/1) ... [2025-03-08 22:20:05,311 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51cc6608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:20:05, skipping insertion in model container [2025-03-08 22:20:05,311 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:20:05" (1/1) ... [2025-03-08 22:20:05,336 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 22:20:05,600 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:05,630 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:05,635 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:05,638 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:05,643 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:05,662 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:05,662 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:05,667 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:05,668 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:05,669 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:05,669 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:05,673 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:05,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:20:05,687 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-03-08 22:20:05,695 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 22:20:05,727 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:05,746 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:05,748 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:05,753 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:05,756 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:05,767 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:05,771 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:05,772 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:05,774 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:05,777 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:05,777 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:05,782 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:20:05,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:20:05,789 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 22:20:05,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:20:05,902 INFO L204 MainTranslator]: Completed translation [2025-03-08 22:20:05,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:20:05 WrapperNode [2025-03-08 22:20:05,903 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 22:20:05,904 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 22:20:05,904 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 22:20:05,904 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 22:20:05,908 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:20:05" (1/1) ... [2025-03-08 22:20:05,930 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:20:05" (1/1) ... [2025-03-08 22:20:05,963 INFO L138 Inliner]: procedures = 179, calls = 221, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 714 [2025-03-08 22:20:05,963 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 22:20:05,964 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 22:20:05,964 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 22:20:05,964 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 22:20:05,972 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:20:05" (1/1) ... [2025-03-08 22:20:05,972 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:20:05" (1/1) ... [2025-03-08 22:20:05,980 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:20:05" (1/1) ... [2025-03-08 22:20:06,033 INFO L175 MemorySlicer]: Split 206 memory accesses to 2 slices as follows [2, 204]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 50 writes are split as follows [0, 50]. [2025-03-08 22:20:06,033 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:20:05" (1/1) ... [2025-03-08 22:20:06,033 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:20:05" (1/1) ... [2025-03-08 22:20:06,064 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:20:05" (1/1) ... [2025-03-08 22:20:06,069 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:20:05" (1/1) ... [2025-03-08 22:20:06,074 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:20:05" (1/1) ... [2025-03-08 22:20:06,075 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:20:05" (1/1) ... [2025-03-08 22:20:06,084 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 22:20:06,085 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 22:20:06,086 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 22:20:06,086 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 22:20:06,087 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:20:05" (1/1) ... [2025-03-08 22:20:06,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:20:06,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:20:06,112 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) [2025-03-08 22:20:06,116 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 [2025-03-08 22:20:06,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-03-08 22:20:06,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-03-08 22:20:06,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-08 22:20:06,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-08 22:20:06,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-08 22:20:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-08 22:20:06,135 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-08 22:20:06,135 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-08 22:20:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 22:20:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 22:20:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 22:20:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 22:20:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 22:20:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 22:20:06,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 22:20:06,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-08 22:20:06,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-08 22:20:06,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-08 22:20:06,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-08 22:20:06,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 22:20:06,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 22:20:06,272 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 22:20:06,273 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 22:20:11,759 INFO L? ?]: Removed 109 outVars from TransFormulas that were not future-live. [2025-03-08 22:20:11,759 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 22:20:11,766 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 22:20:11,766 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 22:20:11,766 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:20:11 BoogieIcfgContainer [2025-03-08 22:20:11,767 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 22:20:11,768 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 22:20:11,768 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 22:20:11,771 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 22:20:11,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 10:20:05" (1/3) ... [2025-03-08 22:20:11,772 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@725192b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:20:11, skipping insertion in model container [2025-03-08 22:20:11,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:20:05" (2/3) ... [2025-03-08 22:20:11,772 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@725192b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:20:11, skipping insertion in model container [2025-03-08 22:20:11,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:20:11" (3/3) ... [2025-03-08 22:20:11,773 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_FNV_nondet_test1-2.i [2025-03-08 22:20:11,788 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 22:20:11,789 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_FNV_nondet_test1-2.i that has 3 procedures, 136 locations, 1 initial locations, 24 loop locations, and 2 error locations. [2025-03-08 22:20:11,818 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 22:20:11,827 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;@788786e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 22:20:11,827 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-08 22:20:11,831 INFO L276 IsEmpty]: Start isEmpty. Operand has 132 states, 125 states have (on average 1.64) internal successors, (205), 127 states have internal predecessors, (205), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-08 22:20:11,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-08 22:20:11,834 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:20:11,835 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:20:11,835 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:20:11,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:20:11,839 INFO L85 PathProgramCache]: Analyzing trace with hash -652237759, now seen corresponding path program 1 times [2025-03-08 22:20:11,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:20:11,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [267585837] [2025-03-08 22:20:11,846 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:20:11,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:20:11,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:20:11,849 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) [2025-03-08 22:20:11,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 22:20:11,946 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-08 22:20:11,951 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-08 22:20:11,951 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:20:11,951 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:20:11,953 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-08 22:20:11,955 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:20:11,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:20:11,992 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:20:11,992 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:20:11,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267585837] [2025-03-08 22:20:11,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267585837] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:20:11,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:20:11,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:20:11,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839214736] [2025-03-08 22:20:11,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:20:11,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:20:11,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:20:12,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:20:12,010 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:20:12,011 INFO L87 Difference]: Start difference. First operand has 132 states, 125 states have (on average 1.64) internal successors, (205), 127 states have internal predecessors, (205), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2025-03-08 22:20:12,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:20:12,176 INFO L93 Difference]: Finished difference Result 136 states and 176 transitions. [2025-03-08 22:20:12,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 22:20:12,178 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2025-03-08 22:20:12,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:20:12,181 INFO L225 Difference]: With dead ends: 136 [2025-03-08 22:20:12,181 INFO L226 Difference]: Without dead ends: 134 [2025-03-08 22:20:12,182 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:20:12,184 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 2 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:20:12,184 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 491 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:20:12,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2025-03-08 22:20:12,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2025-03-08 22:20:12,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 126 states have (on average 1.3174603174603174) internal successors, (166), 127 states have internal predecessors, (166), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-08 22:20:12,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 172 transitions. [2025-03-08 22:20:12,220 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 172 transitions. Word has length 7 [2025-03-08 22:20:12,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:20:12,220 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 172 transitions. [2025-03-08 22:20:12,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2025-03-08 22:20:12,221 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 172 transitions. [2025-03-08 22:20:12,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-08 22:20:12,221 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:20:12,221 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:20:12,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-08 22:20:12,422 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 [2025-03-08 22:20:12,422 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:20:12,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:20:12,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1256450139, now seen corresponding path program 1 times [2025-03-08 22:20:12,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:20:12,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1891480613] [2025-03-08 22:20:12,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:20:12,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:20:12,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:20:12,425 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) [2025-03-08 22:20:12,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 22:20:12,531 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-08 22:20:12,538 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-08 22:20:12,538 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:20:12,538 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:20:12,539 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-08 22:20:12,540 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:20:12,574 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:20:12,574 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:20:12,574 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:20:12,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891480613] [2025-03-08 22:20:12,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891480613] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:20:12,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:20:12,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:20:12,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063188286] [2025-03-08 22:20:12,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:20:12,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:20:12,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:20:12,577 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:20:12,577 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:20:12,577 INFO L87 Difference]: Start difference. First operand 132 states and 172 transitions. Second operand has 4 states, 4 states have (on average 2.0) 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) [2025-03-08 22:20:16,755 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 [] [2025-03-08 22:20:18,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:20:18,198 INFO L93 Difference]: Finished difference Result 202 states and 262 transitions. [2025-03-08 22:20:18,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 22:20:18,200 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) 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 [2025-03-08 22:20:18,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:20:18,201 INFO L225 Difference]: With dead ends: 202 [2025-03-08 22:20:18,201 INFO L226 Difference]: Without dead ends: 202 [2025-03-08 22:20:18,201 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:20:18,201 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 94 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2025-03-08 22:20:18,201 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 477 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 80 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2025-03-08 22:20:18,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2025-03-08 22:20:18,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 173. [2025-03-08 22:20:18,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 167 states have (on average 1.3053892215568863) internal successors, (218), 168 states have internal predecessors, (218), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-08 22:20:18,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 224 transitions. [2025-03-08 22:20:18,211 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 224 transitions. Word has length 8 [2025-03-08 22:20:18,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:20:18,211 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 224 transitions. [2025-03-08 22:20:18,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) 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) [2025-03-08 22:20:18,211 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 224 transitions. [2025-03-08 22:20:18,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-03-08 22:20:18,211 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:20:18,211 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:20:18,217 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-08 22:20:18,412 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 [2025-03-08 22:20:18,412 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:20:18,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:20:18,413 INFO L85 PathProgramCache]: Analyzing trace with hash -359084717, now seen corresponding path program 1 times [2025-03-08 22:20:18,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:20:18,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2059424923] [2025-03-08 22:20:18,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:20:18,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:20:18,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:20:18,415 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) [2025-03-08 22:20:18,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 22:20:18,497 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-08 22:20:18,501 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-08 22:20:18,501 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:20:18,501 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:20:18,502 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-08 22:20:18,503 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:20:18,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:20:18,531 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:20:18,531 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:20:18,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059424923] [2025-03-08 22:20:18,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2059424923] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:20:18,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:20:18,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:20:18,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544072264] [2025-03-08 22:20:18,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:20:18,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:20:18,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:20:18,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:20:18,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:20:18,533 INFO L87 Difference]: Start difference. First operand 173 states and 224 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:20:22,556 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 [] [2025-03-08 22:20:22,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:20:22,876 INFO L93 Difference]: Finished difference Result 174 states and 224 transitions. [2025-03-08 22:20:22,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:20:22,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-03-08 22:20:22,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:20:22,882 INFO L225 Difference]: With dead ends: 174 [2025-03-08 22:20:22,882 INFO L226 Difference]: Without dead ends: 167 [2025-03-08 22:20:22,882 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:20:22,883 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 0 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2025-03-08 22:20:22,883 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 323 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2025-03-08 22:20:22,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2025-03-08 22:20:22,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2025-03-08 22:20:22,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 161 states have (on average 1.31055900621118) internal successors, (211), 162 states have internal predecessors, (211), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-08 22:20:22,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 217 transitions. [2025-03-08 22:20:22,889 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 217 transitions. Word has length 10 [2025-03-08 22:20:22,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:20:22,889 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 217 transitions. [2025-03-08 22:20:22,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:20:22,890 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 217 transitions. [2025-03-08 22:20:22,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-03-08 22:20:22,892 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:20:22,892 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:20:22,898 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-08 22:20:23,092 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 [2025-03-08 22:20:23,093 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:20:23,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:20:23,093 INFO L85 PathProgramCache]: Analyzing trace with hash -854528337, now seen corresponding path program 1 times [2025-03-08 22:20:23,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:20:23,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [648158096] [2025-03-08 22:20:23,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:20:23,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:20:23,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:20:23,097 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) [2025-03-08 22:20:23,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-08 22:20:23,255 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-03-08 22:20:23,337 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-03-08 22:20:23,338 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:20:23,338 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:20:23,347 INFO L256 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 22:20:23,350 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:20:23,372 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:20:23,373 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:20:23,374 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:20:23,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648158096] [2025-03-08 22:20:23,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648158096] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:20:23,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:20:23,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 22:20:23,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017972638] [2025-03-08 22:20:23,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:20:23,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:20:23,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:20:23,375 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:20:23,375 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:20:23,375 INFO L87 Difference]: Start difference. First operand 167 states and 217 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:20:23,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:20:23,465 INFO L93 Difference]: Finished difference Result 207 states and 257 transitions. [2025-03-08 22:20:23,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:20:23,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 75 [2025-03-08 22:20:23,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:20:23,467 INFO L225 Difference]: With dead ends: 207 [2025-03-08 22:20:23,467 INFO L226 Difference]: Without dead ends: 207 [2025-03-08 22:20:23,468 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:20:23,468 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 9 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:20:23,468 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 279 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:20:23,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2025-03-08 22:20:23,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2025-03-08 22:20:23,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 201 states have (on average 1.2487562189054726) internal successors, (251), 202 states have internal predecessors, (251), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-08 22:20:23,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 257 transitions. [2025-03-08 22:20:23,480 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 257 transitions. Word has length 75 [2025-03-08 22:20:23,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:20:23,480 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 257 transitions. [2025-03-08 22:20:23,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:20:23,480 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 257 transitions. [2025-03-08 22:20:23,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-03-08 22:20:23,481 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:20:23,482 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:20:23,492 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-08 22:20:23,686 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 [2025-03-08 22:20:23,686 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:20:23,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:20:23,686 INFO L85 PathProgramCache]: Analyzing trace with hash 2136045230, now seen corresponding path program 1 times [2025-03-08 22:20:23,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:20:23,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1717841514] [2025-03-08 22:20:23,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:20:23,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:20:23,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:20:23,689 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) [2025-03-08 22:20:23,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-08 22:20:23,858 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-03-08 22:20:23,948 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-03-08 22:20:23,948 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:20:23,948 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:20:23,956 INFO L256 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-08 22:20:23,958 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:20:24,158 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:20:24,159 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:20:24,159 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:20:24,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717841514] [2025-03-08 22:20:24,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717841514] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:20:24,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:20:24,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:20:24,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258440676] [2025-03-08 22:20:24,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:20:24,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:20:24,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:20:24,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:20:24,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:20:24,160 INFO L87 Difference]: Start difference. First operand 207 states and 257 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:20:28,393 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 [] [2025-03-08 22:20:30,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 22:20:32,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:20:32,116 INFO L93 Difference]: Finished difference Result 277 states and 346 transitions. [2025-03-08 22:20:32,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 22:20:32,118 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 75 [2025-03-08 22:20:32,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:20:32,119 INFO L225 Difference]: With dead ends: 277 [2025-03-08 22:20:32,119 INFO L226 Difference]: Without dead ends: 277 [2025-03-08 22:20:32,119 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:20:32,120 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 274 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2025-03-08 22:20:32,120 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 329 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 88 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2025-03-08 22:20:32,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2025-03-08 22:20:32,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 209. [2025-03-08 22:20:32,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 203 states have (on average 1.2364532019704433) internal successors, (251), 204 states have internal predecessors, (251), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-08 22:20:32,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 257 transitions. [2025-03-08 22:20:32,127 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 257 transitions. Word has length 75 [2025-03-08 22:20:32,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:20:32,128 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 257 transitions. [2025-03-08 22:20:32,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:20:32,128 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 257 transitions. [2025-03-08 22:20:32,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2025-03-08 22:20:32,130 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:20:32,130 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:20:32,139 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-08 22:20:32,330 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 [2025-03-08 22:20:32,330 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:20:32,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:20:32,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1793876878, now seen corresponding path program 1 times [2025-03-08 22:20:32,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:20:32,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [884198830] [2025-03-08 22:20:32,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:20:32,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:20:32,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:20:32,333 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) [2025-03-08 22:20:32,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-08 22:20:32,510 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-03-08 22:20:32,595 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-03-08 22:20:32,595 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:20:32,595 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:20:32,605 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 22:20:32,607 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:20:32,626 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-08 22:20:32,627 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:20:32,627 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:20:32,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884198830] [2025-03-08 22:20:32,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884198830] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:20:32,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:20:32,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:20:32,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172768583] [2025-03-08 22:20:32,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:20:32,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:20:32,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:20:32,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:20:32,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:20:32,628 INFO L87 Difference]: Start difference. First operand 209 states and 257 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:20:32,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:20:32,699 INFO L93 Difference]: Finished difference Result 175 states and 201 transitions. [2025-03-08 22:20:32,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 22:20:32,700 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 76 [2025-03-08 22:20:32,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:20:32,700 INFO L225 Difference]: With dead ends: 175 [2025-03-08 22:20:32,700 INFO L226 Difference]: Without dead ends: 175 [2025-03-08 22:20:32,701 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:20:32,701 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 32 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:20:32,701 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 388 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:20:32,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2025-03-08 22:20:32,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2025-03-08 22:20:32,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 169 states have (on average 1.1538461538461537) internal successors, (195), 170 states have internal predecessors, (195), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-08 22:20:32,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 201 transitions. [2025-03-08 22:20:32,705 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 201 transitions. Word has length 76 [2025-03-08 22:20:32,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:20:32,706 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 201 transitions. [2025-03-08 22:20:32,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:20:32,706 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 201 transitions. [2025-03-08 22:20:32,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2025-03-08 22:20:32,707 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:20:32,707 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:20:32,716 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-08 22:20:32,907 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 [2025-03-08 22:20:32,907 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:20:32,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:20:32,908 INFO L85 PathProgramCache]: Analyzing trace with hash 407933159, now seen corresponding path program 1 times [2025-03-08 22:20:32,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:20:32,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [854910164] [2025-03-08 22:20:32,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:20:32,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:20:32,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:20:32,910 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) [2025-03-08 22:20:32,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-08 22:20:33,085 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-03-08 22:20:33,160 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-03-08 22:20:33,161 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:20:33,161 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:20:33,169 INFO L256 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 22:20:33,171 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:20:33,198 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-08 22:20:33,198 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:20:33,198 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:20:33,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854910164] [2025-03-08 22:20:33,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854910164] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:20:33,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:20:33,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:20:33,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711038757] [2025-03-08 22:20:33,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:20:33,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:20:33,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:20:33,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:20:33,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:20:33,199 INFO L87 Difference]: Start difference. First operand 175 states and 201 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:20:33,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:20:33,232 INFO L93 Difference]: Finished difference Result 178 states and 205 transitions. [2025-03-08 22:20:33,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 22:20:33,233 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 76 [2025-03-08 22:20:33,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:20:33,235 INFO L225 Difference]: With dead ends: 178 [2025-03-08 22:20:33,235 INFO L226 Difference]: Without dead ends: 178 [2025-03-08 22:20:33,235 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:20:33,235 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 0 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 22:20:33,235 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 452 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 22:20:33,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2025-03-08 22:20:33,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2025-03-08 22:20:33,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 171 states have (on average 1.1578947368421053) internal successors, (198), 173 states have internal predecessors, (198), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-08 22:20:33,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 205 transitions. [2025-03-08 22:20:33,239 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 205 transitions. Word has length 76 [2025-03-08 22:20:33,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:20:33,240 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 205 transitions. [2025-03-08 22:20:33,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 22:20:33,240 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 205 transitions. [2025-03-08 22:20:33,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2025-03-08 22:20:33,240 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:20:33,241 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:20:33,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-08 22:20:33,441 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 [2025-03-08 22:20:33,441 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:20:33,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:20:33,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1641863901, now seen corresponding path program 1 times [2025-03-08 22:20:33,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:20:33,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1447003465] [2025-03-08 22:20:33,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:20:33,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:20:33,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:20:33,444 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) [2025-03-08 22:20:33,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-08 22:20:33,601 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-03-08 22:20:33,687 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-03-08 22:20:33,688 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:20:33,688 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:20:33,698 INFO L256 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 22:20:33,700 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:20:33,883 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-08 22:20:33,883 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 22:20:34,097 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-08 22:20:34,098 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:20:34,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1447003465] [2025-03-08 22:20:34,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1447003465] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 22:20:34,098 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-08 22:20:34,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2025-03-08 22:20:34,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458549442] [2025-03-08 22:20:34,098 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-08 22:20:34,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:20:34,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:20:34,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:20:34,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:20:34,099 INFO L87 Difference]: Start difference. First operand 178 states and 205 transitions. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-08 22:20:34,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:20:34,380 INFO L93 Difference]: Finished difference Result 376 states and 441 transitions. [2025-03-08 22:20:34,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:20:34,381 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 78 [2025-03-08 22:20:34,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:20:34,382 INFO L225 Difference]: With dead ends: 376 [2025-03-08 22:20:34,382 INFO L226 Difference]: Without dead ends: 376 [2025-03-08 22:20:34,382 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2025-03-08 22:20:34,383 INFO L435 NwaCegarLoop]: 235 mSDtfsCounter, 304 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 22:20:34,383 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 744 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 22:20:34,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2025-03-08 22:20:34,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2025-03-08 22:20:34,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 366 states have (on average 1.1612021857923498) internal successors, (425), 368 states have internal predecessors, (425), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2025-03-08 22:20:34,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 441 transitions. [2025-03-08 22:20:34,394 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 441 transitions. Word has length 78 [2025-03-08 22:20:34,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:20:34,394 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 441 transitions. [2025-03-08 22:20:34,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-08 22:20:34,395 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 441 transitions. [2025-03-08 22:20:34,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2025-03-08 22:20:34,397 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:20:34,398 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:20:34,407 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-08 22:20:34,598 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 [2025-03-08 22:20:34,598 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:20:34,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:20:34,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1873762307, now seen corresponding path program 1 times [2025-03-08 22:20:34,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:20:34,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1701206375] [2025-03-08 22:20:34,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:20:34,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:20:34,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:20:34,601 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) [2025-03-08 22:20:34,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-08 22:20:34,886 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 237 statements into 1 equivalence classes. [2025-03-08 22:20:35,183 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 237 of 237 statements. [2025-03-08 22:20:35,183 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:20:35,183 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:20:35,216 INFO L256 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-08 22:20:35,219 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:20:35,249 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 112 proven. 1 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2025-03-08 22:20:35,249 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 22:20:35,335 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 112 proven. 1 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2025-03-08 22:20:35,335 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:20:35,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701206375] [2025-03-08 22:20:35,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701206375] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 22:20:35,335 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-08 22:20:35,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-03-08 22:20:35,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75460977] [2025-03-08 22:20:35,336 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-08 22:20:35,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-08 22:20:35,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:20:35,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-08 22:20:35,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-08 22:20:35,337 INFO L87 Difference]: Start difference. First operand 376 states and 441 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 8 states have internal predecessors, (115), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-08 22:20:35,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:20:35,460 INFO L93 Difference]: Finished difference Result 387 states and 464 transitions. [2025-03-08 22:20:35,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-08 22:20:35,461 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 8 states have internal predecessors, (115), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 237 [2025-03-08 22:20:35,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:20:35,462 INFO L225 Difference]: With dead ends: 387 [2025-03-08 22:20:35,462 INFO L226 Difference]: Without dead ends: 387 [2025-03-08 22:20:35,463 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 466 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-03-08 22:20:35,463 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 4 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:20:35,463 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 599 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:20:35,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2025-03-08 22:20:35,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 385. [2025-03-08 22:20:35,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 374 states have (on average 1.1737967914438503) internal successors, (439), 376 states have internal predecessors, (439), 6 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2025-03-08 22:20:35,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 459 transitions. [2025-03-08 22:20:35,473 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 459 transitions. Word has length 237 [2025-03-08 22:20:35,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:20:35,474 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 459 transitions. [2025-03-08 22:20:35,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 8 states have internal predecessors, (115), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-08 22:20:35,474 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 459 transitions. [2025-03-08 22:20:35,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2025-03-08 22:20:35,476 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:20:35,476 INFO L218 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:20:35,498 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-08 22:20:35,676 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 [2025-03-08 22:20:35,677 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:20:35,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:20:35,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1201691143, now seen corresponding path program 2 times [2025-03-08 22:20:35,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:20:35,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1994009962] [2025-03-08 22:20:35,678 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 22:20:35,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:20:35,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:20:35,680 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) [2025-03-08 22:20:35,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-08 22:20:35,989 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 241 statements into 2 equivalence classes. [2025-03-08 22:20:36,314 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 241 of 241 statements. [2025-03-08 22:20:36,314 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-08 22:20:36,314 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:20:36,347 INFO L256 TraceCheckSpWp]: Trace formula consists of 1277 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-08 22:20:36,351 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:20:36,412 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 124 proven. 3 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2025-03-08 22:20:36,412 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 22:20:36,581 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 106 proven. 20 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2025-03-08 22:20:36,581 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:20:36,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994009962] [2025-03-08 22:20:36,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1994009962] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 22:20:36,582 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-08 22:20:36,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-03-08 22:20:36,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187775020] [2025-03-08 22:20:36,582 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-08 22:20:36,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-08 22:20:36,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:20:36,583 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-08 22:20:36,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-03-08 22:20:36,584 INFO L87 Difference]: Start difference. First operand 385 states and 459 transitions. Second operand has 10 states, 10 states have (on average 12.1) internal successors, (121), 10 states have internal predecessors, (121), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-08 22:20:36,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:20:36,874 INFO L93 Difference]: Finished difference Result 393 states and 469 transitions. [2025-03-08 22:20:36,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-08 22:20:36,875 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 10 states have internal predecessors, (121), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 241 [2025-03-08 22:20:36,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:20:36,876 INFO L225 Difference]: With dead ends: 393 [2025-03-08 22:20:36,876 INFO L226 Difference]: Without dead ends: 391 [2025-03-08 22:20:36,877 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 472 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2025-03-08 22:20:36,877 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 5 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 22:20:36,877 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 754 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 22:20:36,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2025-03-08 22:20:36,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 389. [2025-03-08 22:20:36,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 378 states have (on average 1.1772486772486772) internal successors, (445), 380 states have internal predecessors, (445), 6 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2025-03-08 22:20:36,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 461 transitions. [2025-03-08 22:20:36,887 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 461 transitions. Word has length 241 [2025-03-08 22:20:36,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:20:36,887 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 461 transitions. [2025-03-08 22:20:36,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 10 states have internal predecessors, (121), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-08 22:20:36,887 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 461 transitions. [2025-03-08 22:20:36,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2025-03-08 22:20:36,889 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:20:36,889 INFO L218 NwaCegarLoop]: trace histogram [10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:20:36,914 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-08 22:20:37,089 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 [2025-03-08 22:20:37,090 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:20:37,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:20:37,090 INFO L85 PathProgramCache]: Analyzing trace with hash 902750585, now seen corresponding path program 3 times [2025-03-08 22:20:37,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:20:37,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1527248740] [2025-03-08 22:20:37,091 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-08 22:20:37,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:20:37,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:20:37,093 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) [2025-03-08 22:20:37,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-08 22:20:37,445 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 245 statements into 9 equivalence classes.