./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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_SAX_test5-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1fe25077175322d8d5e3cefee67a534dcd61077607911040f354db1679589b09 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 00:48:00,790 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 00:48:00,848 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-09 00:48:00,851 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 00:48:00,851 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 00:48:00,870 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 00:48:00,870 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 00:48:00,871 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 00:48:00,871 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 00:48:00,871 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 00:48:00,871 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 00:48:00,871 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 00:48:00,871 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 00:48:00,872 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 00:48:00,872 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 00:48:00,873 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 00:48:00,873 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 00:48:00,873 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 00:48:00,873 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 00:48:00,873 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 00:48:00,873 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-09 00:48:00,873 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-09 00:48:00,873 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-09 00:48:00,874 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 00:48:00,874 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-09 00:48:00,874 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 00:48:00,874 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 00:48:00,874 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 00:48:00,874 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 00:48:00,874 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 00:48:00,874 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 00:48:00,875 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 00:48:00,875 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 00:48:00,875 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 00:48:00,875 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 00:48:00,875 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 00:48:00,875 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 00:48:00,875 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 00:48:00,875 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 00:48:00,875 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 00:48:00,875 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 00:48:00,875 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 00:48:00,875 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1fe25077175322d8d5e3cefee67a534dcd61077607911040f354db1679589b09 [2025-03-09 00:48:01,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 00:48:01,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 00:48:01,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 00:48:01,125 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 00:48:01,125 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 00:48:01,126 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i [2025-03-09 00:48:02,296 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5778d25f/bc1fa85f0c2c474e9e2af1b347c22f1b/FLAGb235d11cf [2025-03-09 00:48:02,655 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 00:48:02,656 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i [2025-03-09 00:48:02,668 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5778d25f/bc1fa85f0c2c474e9e2af1b347c22f1b/FLAGb235d11cf [2025-03-09 00:48:02,894 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5778d25f/bc1fa85f0c2c474e9e2af1b347c22f1b [2025-03-09 00:48:02,896 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 00:48:02,898 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 00:48:02,899 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 00:48:02,900 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 00:48:02,903 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 00:48:02,903 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 12:48:02" (1/1) ... [2025-03-09 00:48:02,906 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cfc6d9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:48:02, skipping insertion in model container [2025-03-09 00:48:02,906 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 12:48:02" (1/1) ... [2025-03-09 00:48:02,938 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 00:48:03,193 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:03,218 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:03,220 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:03,223 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:03,228 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:03,251 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:03,253 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:03,256 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:03,260 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:03,278 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:03,278 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:03,280 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:03,280 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:03,281 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:03,282 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:03,283 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:03,284 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:03,284 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:03,286 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:03,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 00:48:03,312 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) [2025-03-09 00:48:03,313 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5cd6a316 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:48:03, skipping insertion in model container [2025-03-09 00:48:03,313 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 00:48:03,314 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-03-09 00:48:03,315 INFO L158 Benchmark]: Toolchain (without parser) took 416.59ms. Allocated memory is still 142.6MB. Free memory was 103.0MB in the beginning and 80.2MB in the end (delta: 22.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-09 00:48:03,315 INFO L158 Benchmark]: CDTParser took 0.77ms. Allocated memory is still 201.3MB. Free memory is still 115.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 00:48:03,318 INFO L158 Benchmark]: CACSL2BoogieTranslator took 414.54ms. Allocated memory is still 142.6MB. Free memory was 103.0MB in the beginning and 80.9MB in the end (delta: 22.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-09 00:48:03,318 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77ms. Allocated memory is still 201.3MB. Free memory is still 115.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 414.54ms. Allocated memory is still 142.6MB. Free memory was 103.0MB in the beginning and 80.9MB in the end (delta: 22.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 757]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1fe25077175322d8d5e3cefee67a534dcd61077607911040f354db1679589b09 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 00:48:04,866 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 00:48:04,940 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-03-09 00:48:04,946 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 00:48:04,949 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 00:48:04,967 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 00:48:04,967 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 00:48:04,967 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 00:48:04,967 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 00:48:04,967 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 00:48:04,967 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 00:48:04,967 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 00:48:04,968 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 00:48:04,968 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 00:48:04,968 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 00:48:04,968 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 00:48:04,968 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 00:48:04,968 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 00:48:04,968 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 00:48:04,968 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 00:48:04,968 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-09 00:48:04,968 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-09 00:48:04,968 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-09 00:48:04,968 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 00:48:04,968 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-09 00:48:04,968 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-09 00:48:04,971 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-09 00:48:04,971 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 00:48:04,971 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 00:48:04,971 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 00:48:04,972 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 00:48:04,972 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 00:48:04,972 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 00:48:04,972 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 00:48:04,972 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 00:48:04,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 00:48:04,972 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 00:48:04,973 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 00:48:04,973 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-09 00:48:04,973 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-09 00:48:04,973 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 00:48:04,973 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 00:48:04,973 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 00:48:04,973 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 00:48:04,973 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1fe25077175322d8d5e3cefee67a534dcd61077607911040f354db1679589b09 [2025-03-09 00:48:05,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 00:48:05,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 00:48:05,224 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 00:48:05,225 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 00:48:05,225 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 00:48:05,225 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i [2025-03-09 00:48:06,433 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a637900d7/d0d21f32522342b9a8aa0224714c46cd/FLAG892b2e2f8 [2025-03-09 00:48:06,643 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 00:48:06,644 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i [2025-03-09 00:48:06,657 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a637900d7/d0d21f32522342b9a8aa0224714c46cd/FLAG892b2e2f8 [2025-03-09 00:48:06,978 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a637900d7/d0d21f32522342b9a8aa0224714c46cd [2025-03-09 00:48:06,979 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 00:48:06,980 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 00:48:06,981 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 00:48:06,981 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 00:48:06,984 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 00:48:06,985 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 12:48:06" (1/1) ... [2025-03-09 00:48:06,987 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43392636 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:48:06, skipping insertion in model container [2025-03-09 00:48:06,987 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 12:48:06" (1/1) ... [2025-03-09 00:48:07,015 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 00:48:07,289 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,318 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,321 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,326 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,332 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,360 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,362 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,364 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,368 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,398 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,398 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,401 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,401 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,403 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,404 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,406 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,406 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,407 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,412 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 00:48:07,432 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-03-09 00:48:07,445 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 00:48:07,475 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,485 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,488 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,490 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,493 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,508 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,509 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,510 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,513 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,530 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,531 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,532 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,532 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,533 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,534 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,535 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,536 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,537 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,539 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:48:07,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 00:48:07,549 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 00:48:07,631 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 00:48:07,688 INFO L204 MainTranslator]: Completed translation [2025-03-09 00:48:07,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:48:07 WrapperNode [2025-03-09 00:48:07,689 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 00:48:07,690 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 00:48:07,690 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 00:48:07,690 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 00:48:07,695 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:48:07" (1/1) ... [2025-03-09 00:48:07,733 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:48:07" (1/1) ... [2025-03-09 00:48:07,777 INFO L138 Inliner]: procedures = 180, calls = 426, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1543 [2025-03-09 00:48:07,777 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 00:48:07,778 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 00:48:07,778 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 00:48:07,778 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 00:48:07,784 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:48:07" (1/1) ... [2025-03-09 00:48:07,785 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:48:07" (1/1) ... [2025-03-09 00:48:07,796 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:48:07" (1/1) ... [2025-03-09 00:48:07,886 INFO L175 MemorySlicer]: Split 397 memory accesses to 3 slices as follows [2, 371, 24]. 93 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 91 writes are split as follows [0, 90, 1]. [2025-03-09 00:48:07,886 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:48:07" (1/1) ... [2025-03-09 00:48:07,886 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:48:07" (1/1) ... [2025-03-09 00:48:07,915 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:48:07" (1/1) ... [2025-03-09 00:48:07,918 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:48:07" (1/1) ... [2025-03-09 00:48:07,922 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:48:07" (1/1) ... [2025-03-09 00:48:07,925 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:48:07" (1/1) ... [2025-03-09 00:48:07,939 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 00:48:07,942 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 00:48:07,942 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 00:48:07,943 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 00:48:07,943 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:48:07" (1/1) ... [2025-03-09 00:48:07,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 00:48:07,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 00:48:07,971 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) [2025-03-09 00:48:07,973 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 [2025-03-09 00:48:07,991 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-03-09 00:48:07,992 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-03-09 00:48:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-03-09 00:48:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-03-09 00:48:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-03-09 00:48:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-09 00:48:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-09 00:48:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-03-09 00:48:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-09 00:48:07,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-09 00:48:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-09 00:48:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-09 00:48:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-03-09 00:48:07,992 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-09 00:48:07,992 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-09 00:48:07,993 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-03-09 00:48:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-09 00:48:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 00:48:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-09 00:48:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-09 00:48:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-09 00:48:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-09 00:48:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-09 00:48:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-09 00:48:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-09 00:48:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-09 00:48:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-09 00:48:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-09 00:48:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-03-09 00:48:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-09 00:48:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-09 00:48:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-03-09 00:48:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 00:48:07,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 00:48:08,196 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 00:48:08,197 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 00:48:11,826 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L734: call ULTIMATE.dealloc(main_~#j~0#1.base, main_~#j~0#1.offset);havoc main_~#j~0#1.base, main_~#j~0#1.offset; [2025-03-09 00:48:11,959 INFO L? ?]: Removed 1703 outVars from TransFormulas that were not future-live. [2025-03-09 00:48:11,960 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 00:48:11,990 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 00:48:11,992 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 00:48:11,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 12:48:11 BoogieIcfgContainer [2025-03-09 00:48:11,992 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 00:48:11,994 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 00:48:11,994 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 00:48:11,999 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 00:48:12,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 12:48:06" (1/3) ... [2025-03-09 00:48:12,001 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f1b6a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 12:48:12, skipping insertion in model container [2025-03-09 00:48:12,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:48:07" (2/3) ... [2025-03-09 00:48:12,001 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f1b6a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 12:48:12, skipping insertion in model container [2025-03-09 00:48:12,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 12:48:11" (3/3) ... [2025-03-09 00:48:12,002 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test5-2.i [2025-03-09 00:48:12,012 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 00:48:12,014 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SAX_test5-2.i that has 6 procedures, 1642 locations, 1 initial locations, 51 loop locations, and 817 error locations. [2025-03-09 00:48:12,059 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 00:48:12,069 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;@2a85044e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 00:48:12,069 INFO L334 AbstractCegarLoop]: Starting to check reachability of 817 error locations. [2025-03-09 00:48:12,074 INFO L276 IsEmpty]: Start isEmpty. Operand has 1632 states, 804 states have (on average 2.228855721393035) internal successors, (1792), 1622 states have internal predecessors, (1792), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-09 00:48:12,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-09 00:48:12,080 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:48:12,080 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-09 00:48:12,081 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr814REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2025-03-09 00:48:12,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:48:12,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1768295323, now seen corresponding path program 1 times [2025-03-09 00:48:12,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 00:48:12,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1099506515] [2025-03-09 00:48:12,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:48:12,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:48:12,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 00:48:12,095 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) [2025-03-09 00:48:12,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-09 00:48:12,255 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 00:48:12,263 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 00:48:12,264 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:48:12,264 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:48:12,268 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-09 00:48:12,271 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 00:48:12,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:48:12,279 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 00:48:12,279 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 00:48:12,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099506515] [2025-03-09 00:48:12,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099506515] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:48:12,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:48:12,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 00:48:12,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339024758] [2025-03-09 00:48:12,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:48:12,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-09 00:48:12,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 00:48:12,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-09 00:48:12,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-09 00:48:12,305 INFO L87 Difference]: Start difference. First operand has 1632 states, 804 states have (on average 2.228855721393035) internal successors, (1792), 1622 states have internal predecessors, (1792), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 00:48:12,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:48:12,361 INFO L93 Difference]: Finished difference Result 1612 states and 1705 transitions. [2025-03-09 00:48:12,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-09 00:48:12,363 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2025-03-09 00:48:12,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:48:12,382 INFO L225 Difference]: With dead ends: 1612 [2025-03-09 00:48:12,382 INFO L226 Difference]: Without dead ends: 1610 [2025-03-09 00:48:12,384 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-09 00:48:12,386 INFO L435 NwaCegarLoop]: 1705 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1705 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 00:48:12,388 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1705 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 00:48:12,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1610 states. [2025-03-09 00:48:12,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1610 to 1610. [2025-03-09 00:48:12,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1610 states, 794 states have (on average 2.1146095717884132) internal successors, (1679), 1600 states have internal predecessors, (1679), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-09 00:48:12,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1610 states to 1610 states and 1703 transitions. [2025-03-09 00:48:12,469 INFO L78 Accepts]: Start accepts. Automaton has 1610 states and 1703 transitions. Word has length 5 [2025-03-09 00:48:12,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:48:12,469 INFO L471 AbstractCegarLoop]: Abstraction has 1610 states and 1703 transitions. [2025-03-09 00:48:12,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 00:48:12,469 INFO L276 IsEmpty]: Start isEmpty. Operand 1610 states and 1703 transitions. [2025-03-09 00:48:12,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-09 00:48:12,470 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:48:12,470 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-09 00:48:12,476 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-09 00:48:12,670 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 [2025-03-09 00:48:12,671 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr814REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2025-03-09 00:48:12,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:48:12,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1768295354, now seen corresponding path program 1 times [2025-03-09 00:48:12,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 00:48:12,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1842271312] [2025-03-09 00:48:12,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:48:12,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:48:12,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 00:48:12,676 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) [2025-03-09 00:48:12,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-09 00:48:12,794 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 00:48:12,799 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 00:48:12,799 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:48:12,799 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:48:12,800 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 00:48:12,802 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 00:48:12,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-03-09 00:48:12,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:48:12,842 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 00:48:12,842 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 00:48:12,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842271312] [2025-03-09 00:48:12,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1842271312] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:48:12,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:48:12,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 00:48:12,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349148151] [2025-03-09 00:48:12,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:48:12,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 00:48:12,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 00:48:12,844 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 00:48:12,844 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 00:48:12,844 INFO L87 Difference]: Start difference. First operand 1610 states and 1703 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 00:48:14,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:48:14,696 INFO L93 Difference]: Finished difference Result 1742 states and 1867 transitions. [2025-03-09 00:48:14,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 00:48:14,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2025-03-09 00:48:14,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:48:14,701 INFO L225 Difference]: With dead ends: 1742 [2025-03-09 00:48:14,701 INFO L226 Difference]: Without dead ends: 1742 [2025-03-09 00:48:14,702 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 00:48:14,702 INFO L435 NwaCegarLoop]: 1165 mSDtfsCounter, 1254 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 1013 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1265 SdHoareTripleChecker+Valid, 1443 SdHoareTripleChecker+Invalid, 1112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-03-09 00:48:14,702 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1265 Valid, 1443 Invalid, 1112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1013 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-03-09 00:48:14,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2025-03-09 00:48:14,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 1518. [2025-03-09 00:48:14,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1518 states, 794 states have (on average 1.9987405541561714) internal successors, (1587), 1508 states have internal predecessors, (1587), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-09 00:48:14,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 1611 transitions. [2025-03-09 00:48:14,724 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 1611 transitions. Word has length 5 [2025-03-09 00:48:14,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:48:14,724 INFO L471 AbstractCegarLoop]: Abstraction has 1518 states and 1611 transitions. [2025-03-09 00:48:14,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 00:48:14,725 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 1611 transitions. [2025-03-09 00:48:14,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-09 00:48:14,725 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:48:14,725 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-09 00:48:14,732 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-09 00:48:14,929 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 [2025-03-09 00:48:14,929 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr815REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2025-03-09 00:48:14,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:48:14,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1768295355, now seen corresponding path program 1 times [2025-03-09 00:48:14,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 00:48:14,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1370275229] [2025-03-09 00:48:14,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:48:14,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:48:14,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 00:48:14,932 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) [2025-03-09 00:48:14,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-09 00:48:15,029 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 00:48:15,034 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 00:48:15,035 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:48:15,035 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:48:15,036 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 00:48:15,037 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 00:48:15,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-03-09 00:48:15,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:48:15,057 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 00:48:15,057 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 00:48:15,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370275229] [2025-03-09 00:48:15,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370275229] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:48:15,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:48:15,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 00:48:15,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171843079] [2025-03-09 00:48:15,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:48:15,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 00:48:15,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 00:48:15,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 00:48:15,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 00:48:15,058 INFO L87 Difference]: Start difference. First operand 1518 states and 1611 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 00:48:17,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:48:17,575 INFO L93 Difference]: Finished difference Result 2058 states and 2202 transitions. [2025-03-09 00:48:17,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 00:48:17,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2025-03-09 00:48:17,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:48:17,581 INFO L225 Difference]: With dead ends: 2058 [2025-03-09 00:48:17,582 INFO L226 Difference]: Without dead ends: 2058 [2025-03-09 00:48:17,582 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 00:48:17,584 INFO L435 NwaCegarLoop]: 1527 mSDtfsCounter, 760 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 2229 SdHoareTripleChecker+Invalid, 1082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2025-03-09 00:48:17,584 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [765 Valid, 2229 Invalid, 1082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1057 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2025-03-09 00:48:17,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2058 states. [2025-03-09 00:48:17,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2058 to 1683. [2025-03-09 00:48:17,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1683 states, 969 states have (on average 1.9659442724458205) internal successors, (1905), 1673 states have internal predecessors, (1905), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-09 00:48:17,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1683 states to 1683 states and 1929 transitions. [2025-03-09 00:48:17,611 INFO L78 Accepts]: Start accepts. Automaton has 1683 states and 1929 transitions. Word has length 5 [2025-03-09 00:48:17,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:48:17,611 INFO L471 AbstractCegarLoop]: Abstraction has 1683 states and 1929 transitions. [2025-03-09 00:48:17,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 00:48:17,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1683 states and 1929 transitions. [2025-03-09 00:48:17,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-09 00:48:17,611 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:48:17,611 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-09 00:48:17,617 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-09 00:48:17,816 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 [2025-03-09 00:48:17,816 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr194REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2025-03-09 00:48:17,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:48:17,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1767008427, now seen corresponding path program 1 times [2025-03-09 00:48:17,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 00:48:17,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1127540080] [2025-03-09 00:48:17,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:48:17,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:48:17,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 00:48:17,820 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) [2025-03-09 00:48:17,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-09 00:48:17,919 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 00:48:17,922 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 00:48:17,922 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:48:17,922 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:48:17,923 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 00:48:17,924 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 00:48:17,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-03-09 00:48:17,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:48:17,938 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 00:48:17,938 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 00:48:17,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127540080] [2025-03-09 00:48:17,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127540080] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:48:17,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:48:17,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 00:48:17,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578091198] [2025-03-09 00:48:17,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:48:17,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 00:48:17,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 00:48:17,939 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 00:48:17,939 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 00:48:17,939 INFO L87 Difference]: Start difference. First operand 1683 states and 1929 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 00:48:20,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:48:20,222 INFO L93 Difference]: Finished difference Result 2986 states and 3446 transitions. [2025-03-09 00:48:20,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 00:48:20,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2025-03-09 00:48:20,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:48:20,230 INFO L225 Difference]: With dead ends: 2986 [2025-03-09 00:48:20,230 INFO L226 Difference]: Without dead ends: 2986 [2025-03-09 00:48:20,230 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 00:48:20,232 INFO L435 NwaCegarLoop]: 966 mSDtfsCounter, 1399 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1410 SdHoareTripleChecker+Valid, 1685 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-03-09 00:48:20,233 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1410 Valid, 1685 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1281 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-03-09 00:48:20,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2986 states. [2025-03-09 00:48:20,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2986 to 2204. [2025-03-09 00:48:20,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2204 states, 1491 states have (on average 1.9356136820925554) internal successors, (2886), 2190 states have internal predecessors, (2886), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-09 00:48:20,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2204 states to 2204 states and 2918 transitions. [2025-03-09 00:48:20,279 INFO L78 Accepts]: Start accepts. Automaton has 2204 states and 2918 transitions. Word has length 5 [2025-03-09 00:48:20,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:48:20,279 INFO L471 AbstractCegarLoop]: Abstraction has 2204 states and 2918 transitions. [2025-03-09 00:48:20,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 00:48:20,280 INFO L276 IsEmpty]: Start isEmpty. Operand 2204 states and 2918 transitions. [2025-03-09 00:48:20,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-09 00:48:20,280 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:48:20,280 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-09 00:48:20,286 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-09 00:48:20,480 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 [2025-03-09 00:48:20,481 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr195REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2025-03-09 00:48:20,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:48:20,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1767008428, now seen corresponding path program 1 times [2025-03-09 00:48:20,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 00:48:20,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [497577749] [2025-03-09 00:48:20,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:48:20,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:48:20,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 00:48:20,483 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) [2025-03-09 00:48:20,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-09 00:48:20,581 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 00:48:20,584 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 00:48:20,584 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:48:20,584 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:48:20,585 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-09 00:48:20,586 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 00:48:20,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:48:20,594 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 00:48:20,594 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 00:48:20,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497577749] [2025-03-09 00:48:20,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [497577749] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:48:20,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:48:20,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 00:48:20,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933016919] [2025-03-09 00:48:20,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:48:20,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 00:48:20,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 00:48:20,595 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 00:48:20,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 00:48:20,596 INFO L87 Difference]: Start difference. First operand 2204 states and 2918 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 00:48:20,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:48:20,688 INFO L93 Difference]: Finished difference Result 3849 states and 4957 transitions. [2025-03-09 00:48:20,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 00:48:20,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2025-03-09 00:48:20,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:48:20,704 INFO L225 Difference]: With dead ends: 3849 [2025-03-09 00:48:20,704 INFO L226 Difference]: Without dead ends: 3849 [2025-03-09 00:48:20,705 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 00:48:20,706 INFO L435 NwaCegarLoop]: 1863 mSDtfsCounter, 1348 mSDsluCounter, 1590 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1359 SdHoareTripleChecker+Valid, 3453 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 00:48:20,706 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1359 Valid, 3453 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 00:48:20,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3849 states. [2025-03-09 00:48:20,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3849 to 2206. [2025-03-09 00:48:20,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2206 states, 1493 states have (on average 1.9336905559276625) internal successors, (2887), 2192 states have internal predecessors, (2887), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-09 00:48:20,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 2919 transitions. [2025-03-09 00:48:20,751 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 2919 transitions. Word has length 5 [2025-03-09 00:48:20,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:48:20,752 INFO L471 AbstractCegarLoop]: Abstraction has 2206 states and 2919 transitions. [2025-03-09 00:48:20,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 00:48:20,752 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 2919 transitions. [2025-03-09 00:48:20,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-03-09 00:48:20,752 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:48:20,752 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:48:20,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-09 00:48:20,952 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 [2025-03-09 00:48:20,953 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr810REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2025-03-09 00:48:20,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:48:20,953 INFO L85 PathProgramCache]: Analyzing trace with hash -294095497, now seen corresponding path program 1 times [2025-03-09 00:48:20,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 00:48:20,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1377373844] [2025-03-09 00:48:20,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:48:20,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:48:20,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 00:48:20,955 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) [2025-03-09 00:48:20,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-09 00:48:21,075 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-09 00:48:21,090 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-09 00:48:21,090 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:48:21,090 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:48:21,093 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 00:48:21,095 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 00:48:21,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-03-09 00:48:21,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:48:21,130 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 00:48:21,130 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 00:48:21,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377373844] [2025-03-09 00:48:21,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377373844] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:48:21,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:48:21,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 00:48:21,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519669221] [2025-03-09 00:48:21,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:48:21,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 00:48:21,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 00:48:21,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 00:48:21,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 00:48:21,131 INFO L87 Difference]: Start difference. First operand 2206 states and 2919 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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) [2025-03-09 00:48:22,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:48:22,970 INFO L93 Difference]: Finished difference Result 2191 states and 2881 transitions. [2025-03-09 00:48:22,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 00:48:22,971 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 [2025-03-09 00:48:22,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:48:22,976 INFO L225 Difference]: With dead ends: 2191 [2025-03-09 00:48:22,976 INFO L226 Difference]: Without dead ends: 2191 [2025-03-09 00:48:22,976 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-09 00:48:22,977 INFO L435 NwaCegarLoop]: 888 mSDtfsCounter, 1304 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 1704 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 1705 SdHoareTripleChecker+Invalid, 1735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-03-09 00:48:22,977 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1315 Valid, 1705 Invalid, 1735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1704 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-03-09 00:48:22,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2191 states. [2025-03-09 00:48:22,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2191 to 2183. [2025-03-09 00:48:23,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2183 states, 1493 states have (on average 1.9028801071667782) internal successors, (2841), 2169 states have internal predecessors, (2841), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-09 00:48:23,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2183 states to 2183 states and 2873 transitions. [2025-03-09 00:48:23,005 INFO L78 Accepts]: Start accepts. Automaton has 2183 states and 2873 transitions. Word has length 10 [2025-03-09 00:48:23,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:48:23,006 INFO L471 AbstractCegarLoop]: Abstraction has 2183 states and 2873 transitions. [2025-03-09 00:48:23,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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) [2025-03-09 00:48:23,006 INFO L276 IsEmpty]: Start isEmpty. Operand 2183 states and 2873 transitions. [2025-03-09 00:48:23,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-03-09 00:48:23,006 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:48:23,006 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:48:23,013 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-09 00:48:23,206 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 [2025-03-09 00:48:23,206 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr811REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2025-03-09 00:48:23,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:48:23,207 INFO L85 PathProgramCache]: Analyzing trace with hash -294095496, now seen corresponding path program 1 times [2025-03-09 00:48:23,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 00:48:23,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [703770346] [2025-03-09 00:48:23,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:48:23,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:48:23,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 00:48:23,210 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) [2025-03-09 00:48:23,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-09 00:48:23,310 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-09 00:48:23,325 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-09 00:48:23,325 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:48:23,325 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:48:23,328 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-09 00:48:23,339 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 00:48:23,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-03-09 00:48:23,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:48:23,399 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 00:48:23,399 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 00:48:23,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703770346] [2025-03-09 00:48:23,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703770346] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:48:23,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:48:23,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 00:48:23,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960998456] [2025-03-09 00:48:23,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:48:23,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 00:48:23,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 00:48:23,399 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 00:48:23,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 00:48:23,400 INFO L87 Difference]: Start difference. First operand 2183 states and 2873 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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) [2025-03-09 00:48:26,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:48:26,099 INFO L93 Difference]: Finished difference Result 2700 states and 3314 transitions. [2025-03-09 00:48:26,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 00:48:26,100 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 [2025-03-09 00:48:26,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:48:26,106 INFO L225 Difference]: With dead ends: 2700 [2025-03-09 00:48:26,106 INFO L226 Difference]: Without dead ends: 2700 [2025-03-09 00:48:26,106 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-09 00:48:26,107 INFO L435 NwaCegarLoop]: 1250 mSDtfsCounter, 883 mSDsluCounter, 1473 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 888 SdHoareTripleChecker+Valid, 2723 SdHoareTripleChecker+Invalid, 1879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2025-03-09 00:48:26,107 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [888 Valid, 2723 Invalid, 1879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1857 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2025-03-09 00:48:26,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2700 states. [2025-03-09 00:48:26,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2700 to 2297. [2025-03-09 00:48:26,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2297 states, 1607 states have (on average 1.8537647790914749) internal successors, (2979), 2283 states have internal predecessors, (2979), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-09 00:48:26,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2297 states to 2297 states and 3011 transitions. [2025-03-09 00:48:26,142 INFO L78 Accepts]: Start accepts. Automaton has 2297 states and 3011 transitions. Word has length 10 [2025-03-09 00:48:26,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:48:26,143 INFO L471 AbstractCegarLoop]: Abstraction has 2297 states and 3011 transitions. [2025-03-09 00:48:26,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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) [2025-03-09 00:48:26,143 INFO L276 IsEmpty]: Start isEmpty. Operand 2297 states and 3011 transitions. [2025-03-09 00:48:26,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2025-03-09 00:48:26,144 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:48:26,144 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:48:26,151 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-09 00:48:26,348 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 [2025-03-09 00:48:26,348 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr811REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2025-03-09 00:48:26,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:48:26,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1971768254, now seen corresponding path program 1 times [2025-03-09 00:48:26,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 00:48:26,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [804941347] [2025-03-09 00:48:26,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:48:26,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:48:26,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 00:48:26,350 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) [2025-03-09 00:48:26,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-09 00:48:26,464 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-09 00:48:26,507 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-09 00:48:26,507 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:48:26,507 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:48:26,514 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-09 00:48:26,516 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 00:48:26,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-03-09 00:48:26,666 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:48:26,666 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 00:48:26,969 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:48:26,969 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 00:48:26,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804941347] [2025-03-09 00:48:26,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804941347] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 00:48:26,969 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 00:48:26,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2025-03-09 00:48:26,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271369873] [2025-03-09 00:48:26,969 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 00:48:26,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 00:48:26,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 00:48:26,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 00:48:26,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-03-09 00:48:26,970 INFO L87 Difference]: Start difference. First operand 2297 states and 3011 transitions. Second operand has 8 states, 7 states have (on average 8.0) internal successors, (56), 8 states have internal predecessors, (56), 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) [2025-03-09 00:48:35,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:48:35,065 INFO L93 Difference]: Finished difference Result 3108 states and 3884 transitions. [2025-03-09 00:48:35,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 00:48:35,066 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2025-03-09 00:48:35,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:48:35,072 INFO L225 Difference]: With dead ends: 3108 [2025-03-09 00:48:35,072 INFO L226 Difference]: Without dead ends: 3108 [2025-03-09 00:48:35,073 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2025-03-09 00:48:35,073 INFO L435 NwaCegarLoop]: 1251 mSDtfsCounter, 1432 mSDsluCounter, 4468 mSDsCounter, 0 mSdLazyCounter, 5063 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1439 SdHoareTripleChecker+Valid, 5719 SdHoareTripleChecker+Invalid, 5091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 5063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2025-03-09 00:48:35,073 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1439 Valid, 5719 Invalid, 5091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 5063 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2025-03-09 00:48:35,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3108 states. [2025-03-09 00:48:35,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3108 to 2461. [2025-03-09 00:48:35,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2461 states, 1771 states have (on average 1.8130999435347261) internal successors, (3211), 2447 states have internal predecessors, (3211), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-09 00:48:35,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2461 states to 2461 states and 3243 transitions. [2025-03-09 00:48:35,110 INFO L78 Accepts]: Start accepts. Automaton has 2461 states and 3243 transitions. Word has length 29 [2025-03-09 00:48:35,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:48:35,111 INFO L471 AbstractCegarLoop]: Abstraction has 2461 states and 3243 transitions. [2025-03-09 00:48:35,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 8 states have internal predecessors, (56), 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) [2025-03-09 00:48:35,111 INFO L276 IsEmpty]: Start isEmpty. Operand 2461 states and 3243 transitions. [2025-03-09 00:48:35,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2025-03-09 00:48:35,111 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:48:35,112 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:48:35,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-09 00:48:35,312 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 [2025-03-09 00:48:35,313 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr758REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2025-03-09 00:48:35,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:48:35,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1991701978, now seen corresponding path program 1 times [2025-03-09 00:48:35,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 00:48:35,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1762742470] [2025-03-09 00:48:35,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:48:35,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:48:35,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 00:48:35,316 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) [2025-03-09 00:48:35,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-09 00:48:35,443 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-09 00:48:35,486 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-09 00:48:35,486 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:48:35,486 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:48:35,492 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 00:48:35,494 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 00:48:35,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:48:35,625 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 00:48:35,625 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 00:48:35,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762742470] [2025-03-09 00:48:35,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1762742470] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:48:35,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:48:35,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 00:48:35,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792878826] [2025-03-09 00:48:35,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:48:35,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 00:48:35,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 00:48:35,626 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 00:48:35,626 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 00:48:35,626 INFO L87 Difference]: Start difference. First operand 2461 states and 3243 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2025-03-09 00:48:35,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:48:35,741 INFO L93 Difference]: Finished difference Result 2869 states and 3738 transitions. [2025-03-09 00:48:35,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 00:48:35,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 41 [2025-03-09 00:48:35,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:48:35,748 INFO L225 Difference]: With dead ends: 2869 [2025-03-09 00:48:35,748 INFO L226 Difference]: Without dead ends: 2869 [2025-03-09 00:48:35,748 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 00:48:35,748 INFO L435 NwaCegarLoop]: 1648 mSDtfsCounter, 251 mSDsluCounter, 1511 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 3159 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 00:48:35,748 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 3159 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 00:48:35,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2869 states. [2025-03-09 00:48:35,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2869 to 2677. [2025-03-09 00:48:35,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2677 states, 1987 states have (on average 1.7654755913437343) internal successors, (3508), 2663 states have internal predecessors, (3508), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-09 00:48:35,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 3540 transitions. [2025-03-09 00:48:35,774 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 3540 transitions. Word has length 41 [2025-03-09 00:48:35,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:48:35,774 INFO L471 AbstractCegarLoop]: Abstraction has 2677 states and 3540 transitions. [2025-03-09 00:48:35,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2025-03-09 00:48:35,774 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 3540 transitions. [2025-03-09 00:48:35,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-03-09 00:48:35,777 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:48:35,778 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:48:35,787 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-09 00:48:35,978 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 [2025-03-09 00:48:35,978 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr729REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2025-03-09 00:48:35,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:48:35,979 INFO L85 PathProgramCache]: Analyzing trace with hash -180290689, now seen corresponding path program 1 times [2025-03-09 00:48:35,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 00:48:35,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1348877717] [2025-03-09 00:48:35,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:48:35,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:48:35,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 00:48:35,981 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) [2025-03-09 00:48:35,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-09 00:48:36,091 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-09 00:48:36,136 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-09 00:48:36,136 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:48:36,136 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:48:36,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 00:48:36,146 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 00:48:36,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:48:36,178 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 00:48:36,178 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 00:48:36,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348877717] [2025-03-09 00:48:36,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348877717] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:48:36,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:48:36,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 00:48:36,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765962728] [2025-03-09 00:48:36,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:48:36,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 00:48:36,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 00:48:36,179 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 00:48:36,179 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 00:48:36,179 INFO L87 Difference]: Start difference. First operand 2677 states and 3540 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 00:48:36,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:48:36,238 INFO L93 Difference]: Finished difference Result 2222 states and 2886 transitions. [2025-03-09 00:48:36,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 00:48:36,238 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2025-03-09 00:48:36,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:48:36,243 INFO L225 Difference]: With dead ends: 2222 [2025-03-09 00:48:36,243 INFO L226 Difference]: Without dead ends: 2222 [2025-03-09 00:48:36,243 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-09 00:48:36,243 INFO L435 NwaCegarLoop]: 1516 mSDtfsCounter, 56 mSDsluCounter, 2959 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 4475 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 00:48:36,243 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 4475 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 00:48:36,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2222 states. [2025-03-09 00:48:36,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2222 to 2219. [2025-03-09 00:48:36,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2219 states, 1552 states have (on average 1.8369845360824741) internal successors, (2851), 2205 states have internal predecessors, (2851), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-09 00:48:36,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2219 states to 2219 states and 2883 transitions. [2025-03-09 00:48:36,283 INFO L78 Accepts]: Start accepts. Automaton has 2219 states and 2883 transitions. Word has length 44 [2025-03-09 00:48:36,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:48:36,283 INFO L471 AbstractCegarLoop]: Abstraction has 2219 states and 2883 transitions. [2025-03-09 00:48:36,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 00:48:36,284 INFO L276 IsEmpty]: Start isEmpty. Operand 2219 states and 2883 transitions. [2025-03-09 00:48:36,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2025-03-09 00:48:36,284 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:48:36,284 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:48:36,293 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-03-09 00:48:36,484 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 [2025-03-09 00:48:36,485 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr729REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2025-03-09 00:48:36,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:48:36,485 INFO L85 PathProgramCache]: Analyzing trace with hash -746919497, now seen corresponding path program 1 times [2025-03-09 00:48:36,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 00:48:36,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [401882384] [2025-03-09 00:48:36,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:48:36,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:48:36,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 00:48:36,489 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) [2025-03-09 00:48:36,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-09 00:48:36,603 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-09 00:48:36,664 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-09 00:48:36,664 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:48:36,664 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:48:36,674 INFO L256 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-09 00:48:36,676 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 00:48:36,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-03-09 00:48:36,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-03-09 00:48:36,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-09 00:48:36,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2025-03-09 00:48:36,991 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-03-09 00:48:36,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-03-09 00:48:37,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:48:37,003 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 00:48:37,003 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 00:48:37,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401882384] [2025-03-09 00:48:37,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [401882384] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:48:37,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:48:37,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 00:48:37,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168758730] [2025-03-09 00:48:37,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:48:37,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 00:48:37,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 00:48:37,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 00:48:37,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 00:48:37,004 INFO L87 Difference]: Start difference. First operand 2219 states and 2883 transitions. Second operand has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 00:48:38,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:48:38,689 INFO L93 Difference]: Finished difference Result 2135 states and 2763 transitions. [2025-03-09 00:48:38,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 00:48:38,689 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2025-03-09 00:48:38,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:48:38,694 INFO L225 Difference]: With dead ends: 2135 [2025-03-09 00:48:38,694 INFO L226 Difference]: Without dead ends: 2135 [2025-03-09 00:48:38,694 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 00:48:38,694 INFO L435 NwaCegarLoop]: 640 mSDtfsCounter, 2280 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2291 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-03-09 00:48:38,694 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2291 Valid, 757 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 933 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-03-09 00:48:38,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2135 states. [2025-03-09 00:48:38,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2135 to 1789. [2025-03-09 00:48:38,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1789 states, 1206 states have (on average 1.7238805970149254) internal successors, (2079), 1775 states have internal predecessors, (2079), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-09 00:48:38,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1789 states to 1789 states and 2111 transitions. [2025-03-09 00:48:38,709 INFO L78 Accepts]: Start accepts. Automaton has 1789 states and 2111 transitions. Word has length 52 [2025-03-09 00:48:38,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:48:38,709 INFO L471 AbstractCegarLoop]: Abstraction has 1789 states and 2111 transitions. [2025-03-09 00:48:38,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 00:48:38,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1789 states and 2111 transitions. [2025-03-09 00:48:38,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2025-03-09 00:48:38,710 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:48:38,710 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:48:38,719 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-09 00:48:38,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:48:38,910 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr722REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2025-03-09 00:48:38,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:48:38,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1914980142, now seen corresponding path program 1 times [2025-03-09 00:48:38,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 00:48:38,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1106258933] [2025-03-09 00:48:38,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:48:38,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:48:38,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 00:48:38,915 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 00:48:38,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-09 00:48:39,054 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-03-09 00:48:39,101 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-03-09 00:48:39,101 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:48:39,101 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:48:39,108 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-09 00:48:39,110 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 00:48:39,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-03-09 00:48:39,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-09 00:48:39,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-03-09 00:48:39,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:48:39,148 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 00:48:39,148 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 00:48:39,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106258933] [2025-03-09 00:48:39,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106258933] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:48:39,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:48:39,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 00:48:39,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131707580] [2025-03-09 00:48:39,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:48:39,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 00:48:39,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 00:48:39,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 00:48:39,148 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 00:48:39,148 INFO L87 Difference]: Start difference. First operand 1789 states and 2111 transitions. Second operand has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 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) [2025-03-09 00:48:41,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:48:41,042 INFO L93 Difference]: Finished difference Result 1788 states and 2109 transitions. [2025-03-09 00:48:41,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 00:48:41,043 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 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 57 [2025-03-09 00:48:41,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:48:41,046 INFO L225 Difference]: With dead ends: 1788 [2025-03-09 00:48:41,046 INFO L226 Difference]: Without dead ends: 1788 [2025-03-09 00:48:41,047 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-09 00:48:41,047 INFO L435 NwaCegarLoop]: 1442 mSDtfsCounter, 2 mSDsluCounter, 2281 mSDsCounter, 0 mSdLazyCounter, 2052 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3723 SdHoareTripleChecker+Invalid, 2053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-03-09 00:48:41,047 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3723 Invalid, 2053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2052 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-03-09 00:48:41,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1788 states. [2025-03-09 00:48:41,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1788 to 1788. [2025-03-09 00:48:41,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1788 states, 1206 states have (on average 1.7222222222222223) internal successors, (2077), 1774 states have internal predecessors, (2077), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-09 00:48:41,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1788 states to 1788 states and 2109 transitions. [2025-03-09 00:48:41,064 INFO L78 Accepts]: Start accepts. Automaton has 1788 states and 2109 transitions. Word has length 57 [2025-03-09 00:48:41,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:48:41,064 INFO L471 AbstractCegarLoop]: Abstraction has 1788 states and 2109 transitions. [2025-03-09 00:48:41,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 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) [2025-03-09 00:48:41,064 INFO L276 IsEmpty]: Start isEmpty. Operand 1788 states and 2109 transitions. [2025-03-09 00:48:41,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2025-03-09 00:48:41,065 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:48:41,065 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:48:41,074 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-03-09 00:48:41,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:48:41,265 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr723REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2025-03-09 00:48:41,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:48:41,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1914980143, now seen corresponding path program 1 times [2025-03-09 00:48:41,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 00:48:41,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [519783949] [2025-03-09 00:48:41,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:48:41,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:48:41,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 00:48:41,269 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 00:48:41,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-09 00:48:41,394 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-03-09 00:48:41,447 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-03-09 00:48:41,448 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:48:41,448 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:48:41,456 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-09 00:48:41,461 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 00:48:41,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-03-09 00:48:41,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-03-09 00:48:41,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-09 00:48:41,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2025-03-09 00:48:41,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:48:41,537 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 00:48:41,537 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 00:48:41,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519783949] [2025-03-09 00:48:41,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519783949] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:48:41,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:48:41,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 00:48:41,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787501277] [2025-03-09 00:48:41,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:48:41,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 00:48:41,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 00:48:41,538 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 00:48:41,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 00:48:41,538 INFO L87 Difference]: Start difference. First operand 1788 states and 2109 transitions. Second operand has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 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) [2025-03-09 00:48:44,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:48:44,069 INFO L93 Difference]: Finished difference Result 1787 states and 2107 transitions. [2025-03-09 00:48:44,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 00:48:44,070 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 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 57 [2025-03-09 00:48:44,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:48:44,072 INFO L225 Difference]: With dead ends: 1787 [2025-03-09 00:48:44,072 INFO L226 Difference]: Without dead ends: 1787 [2025-03-09 00:48:44,072 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-09 00:48:44,073 INFO L435 NwaCegarLoop]: 1442 mSDtfsCounter, 1 mSDsluCounter, 2315 mSDsCounter, 0 mSdLazyCounter, 2015 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3757 SdHoareTripleChecker+Invalid, 2016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2025-03-09 00:48:44,073 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3757 Invalid, 2016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2015 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2025-03-09 00:48:44,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1787 states. [2025-03-09 00:48:44,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1787 to 1787. [2025-03-09 00:48:44,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1787 states, 1204 states have (on average 1.723421926910299) internal successors, (2075), 1773 states have internal predecessors, (2075), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-09 00:48:44,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1787 states to 1787 states and 2107 transitions. [2025-03-09 00:48:44,086 INFO L78 Accepts]: Start accepts. Automaton has 1787 states and 2107 transitions. Word has length 57 [2025-03-09 00:48:44,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:48:44,086 INFO L471 AbstractCegarLoop]: Abstraction has 1787 states and 2107 transitions. [2025-03-09 00:48:44,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 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) [2025-03-09 00:48:44,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1787 states and 2107 transitions. [2025-03-09 00:48:44,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-03-09 00:48:44,086 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:48:44,086 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:48:44,095 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-03-09 00:48:44,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:48:44,291 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr718REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2025-03-09 00:48:44,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:48:44,291 INFO L85 PathProgramCache]: Analyzing trace with hash 483866187, now seen corresponding path program 1 times [2025-03-09 00:48:44,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 00:48:44,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1748351724] [2025-03-09 00:48:44,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:48:44,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:48:44,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 00:48:44,293 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 00:48:44,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-09 00:48:44,425 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-03-09 00:48:44,479 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-03-09 00:48:44,479 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:48:44,479 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:48:44,486 INFO L256 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-09 00:48:44,489 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 00:48:44,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-09 00:48:44,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-03-09 00:48:44,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:48:44,552 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 00:48:44,552 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 00:48:44,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748351724] [2025-03-09 00:48:44,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748351724] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:48:44,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:48:44,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-09 00:48:44,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608924460] [2025-03-09 00:48:44,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:48:44,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 00:48:44,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 00:48:44,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 00:48:44,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-09 00:48:44,554 INFO L87 Difference]: Start difference. First operand 1787 states and 2107 transitions. Second operand has 7 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 00:48:46,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:48:46,856 INFO L93 Difference]: Finished difference Result 1805 states and 2138 transitions. [2025-03-09 00:48:46,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 00:48:46,856 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2025-03-09 00:48:46,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:48:46,860 INFO L225 Difference]: With dead ends: 1805 [2025-03-09 00:48:46,860 INFO L226 Difference]: Without dead ends: 1805 [2025-03-09 00:48:46,860 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2025-03-09 00:48:46,860 INFO L435 NwaCegarLoop]: 1424 mSDtfsCounter, 13 mSDsluCounter, 3803 mSDsCounter, 0 mSdLazyCounter, 1995 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 5227 SdHoareTripleChecker+Invalid, 2008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-03-09 00:48:46,860 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 5227 Invalid, 2008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1995 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-03-09 00:48:46,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1805 states. [2025-03-09 00:48:46,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1805 to 1796. [2025-03-09 00:48:46,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1796 states, 1212 states have (on average 1.721122112211221) internal successors, (2086), 1780 states have internal predecessors, (2086), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (25), 13 states have call predecessors, (25), 15 states have call successors, (25) [2025-03-09 00:48:46,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1796 states to 1796 states and 2128 transitions. [2025-03-09 00:48:46,876 INFO L78 Accepts]: Start accepts. Automaton has 1796 states and 2128 transitions. Word has length 65 [2025-03-09 00:48:46,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:48:46,876 INFO L471 AbstractCegarLoop]: Abstraction has 1796 states and 2128 transitions. [2025-03-09 00:48:46,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 00:48:46,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1796 states and 2128 transitions. [2025-03-09 00:48:46,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-03-09 00:48:46,876 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:48:46,876 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:48:46,886 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-03-09 00:48:47,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:48:47,077 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr719REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2025-03-09 00:48:47,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:48:47,077 INFO L85 PathProgramCache]: Analyzing trace with hash 483866188, now seen corresponding path program 1 times [2025-03-09 00:48:47,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 00:48:47,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1115960181] [2025-03-09 00:48:47,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:48:47,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:48:47,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 00:48:47,079 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 00:48:47,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-09 00:48:47,212 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-03-09 00:48:47,267 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-03-09 00:48:47,267 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:48:47,267 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:48:47,275 INFO L256 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 00:48:47,276 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 00:48:47,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:48:47,286 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 00:48:47,286 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 00:48:47,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115960181] [2025-03-09 00:48:47,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115960181] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:48:47,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:48:47,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 00:48:47,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833874147] [2025-03-09 00:48:47,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:48:47,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 00:48:47,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 00:48:47,287 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 00:48:47,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 00:48:47,287 INFO L87 Difference]: Start difference. First operand 1796 states and 2128 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 00:48:47,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:48:47,331 INFO L93 Difference]: Finished difference Result 1790 states and 2112 transitions. [2025-03-09 00:48:47,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 00:48:47,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2025-03-09 00:48:47,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:48:47,334 INFO L225 Difference]: With dead ends: 1790 [2025-03-09 00:48:47,336 INFO L226 Difference]: Without dead ends: 1790 [2025-03-09 00:48:47,337 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 00:48:47,337 INFO L435 NwaCegarLoop]: 1441 mSDtfsCounter, 0 mSDsluCounter, 2874 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4315 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 00:48:47,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4315 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 00:48:47,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1790 states. [2025-03-09 00:48:47,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1790 to 1790. [2025-03-09 00:48:47,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1790 states, 1206 states have (on average 1.7230514096185738) internal successors, (2078), 1776 states have internal predecessors, (2078), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 11 states have call predecessors, (17), 15 states have call successors, (17) [2025-03-09 00:48:47,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1790 states to 1790 states and 2112 transitions. [2025-03-09 00:48:47,358 INFO L78 Accepts]: Start accepts. Automaton has 1790 states and 2112 transitions. Word has length 65 [2025-03-09 00:48:47,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:48:47,359 INFO L471 AbstractCegarLoop]: Abstraction has 1790 states and 2112 transitions. [2025-03-09 00:48:47,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 00:48:47,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1790 states and 2112 transitions. [2025-03-09 00:48:47,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-03-09 00:48:47,359 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:48:47,360 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:48:47,371 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-03-09 00:48:47,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:48:47,564 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr718REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2025-03-09 00:48:47,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:48:47,564 INFO L85 PathProgramCache]: Analyzing trace with hash -553723336, now seen corresponding path program 1 times [2025-03-09 00:48:47,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 00:48:47,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1100976293] [2025-03-09 00:48:47,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:48:47,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:48:47,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 00:48:47,566 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 00:48:47,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-09 00:48:47,687 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-03-09 00:48:47,740 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-03-09 00:48:47,740 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:48:47,740 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:48:47,747 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 00:48:47,748 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 00:48:47,765 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:48:47,765 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 00:48:47,809 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:48:47,809 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 00:48:47,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100976293] [2025-03-09 00:48:47,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100976293] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 00:48:47,809 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 00:48:47,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-03-09 00:48:47,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920685487] [2025-03-09 00:48:47,809 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 00:48:47,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 00:48:47,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 00:48:47,810 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 00:48:47,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-09 00:48:47,810 INFO L87 Difference]: Start difference. First operand 1790 states and 2112 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-09 00:48:47,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:48:47,909 INFO L93 Difference]: Finished difference Result 1802 states and 2130 transitions. [2025-03-09 00:48:47,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-09 00:48:47,910 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 66 [2025-03-09 00:48:47,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:48:47,913 INFO L225 Difference]: With dead ends: 1802 [2025-03-09 00:48:47,913 INFO L226 Difference]: Without dead ends: 1802 [2025-03-09 00:48:47,913 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-03-09 00:48:47,914 INFO L435 NwaCegarLoop]: 1440 mSDtfsCounter, 8 mSDsluCounter, 4308 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5748 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 00:48:47,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5748 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 00:48:47,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1802 states. [2025-03-09 00:48:47,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 1800. [2025-03-09 00:48:47,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1800 states, 1215 states have (on average 1.722633744855967) internal successors, (2093), 1785 states have internal predecessors, (2093), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 11 states have call predecessors, (17), 15 states have call successors, (17) [2025-03-09 00:48:47,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1800 states to 1800 states and 2127 transitions. [2025-03-09 00:48:47,941 INFO L78 Accepts]: Start accepts. Automaton has 1800 states and 2127 transitions. Word has length 66 [2025-03-09 00:48:47,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:48:47,942 INFO L471 AbstractCegarLoop]: Abstraction has 1800 states and 2127 transitions. [2025-03-09 00:48:47,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-09 00:48:47,942 INFO L276 IsEmpty]: Start isEmpty. Operand 1800 states and 2127 transitions. [2025-03-09 00:48:47,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-03-09 00:48:47,942 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:48:47,942 INFO L218 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:48:47,952 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-03-09 00:48:48,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:48:48,143 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr718REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2025-03-09 00:48:48,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:48:48,143 INFO L85 PathProgramCache]: Analyzing trace with hash 999770507, now seen corresponding path program 2 times [2025-03-09 00:48:48,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 00:48:48,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1465589816] [2025-03-09 00:48:48,143 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 00:48:48,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:48:48,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 00:48:48,145 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 00:48:48,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-09 00:48:48,281 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-03-09 00:48:52,915 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-03-09 00:48:52,915 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 00:48:52,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:48:52,928 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-03-09 00:48:52,930 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 00:48:52,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-03-09 00:48:52,997 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-03-09 00:48:52,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-03-09 00:48:53,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-09 00:48:53,131 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-03-09 00:48:53,131 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2025-03-09 00:48:53,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2025-03-09 00:48:53,173 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 00:48:53,173 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 00:48:53,224 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2025-03-09 00:48:53,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2025-03-09 00:48:53,231 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_958 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_#t~mem32#1.base| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_958) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) is different from false [2025-03-09 00:48:53,235 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 00:48:53,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465589816] [2025-03-09 00:48:53,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465589816] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 00:48:53,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1235997011] [2025-03-09 00:48:53,235 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 00:48:53,236 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-03-09 00:48:53,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2025-03-09 00:48:53,237 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-03-09 00:48:53,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2025-03-09 00:48:53,460 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-03-09 00:48:54,111 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-03-09 00:48:54,111 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 00:48:54,111 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:48:54,132 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-09 00:48:54,134 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 00:48:54,220 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:48:54,220 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 00:48:54,386 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:48:54,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1235997011] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 00:48:54,387 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 00:48:54,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 23 [2025-03-09 00:48:54,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609514750] [2025-03-09 00:48:54,387 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 00:48:54,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-09 00:48:54,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 00:48:54,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-09 00:48:54,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=467, Unknown=1, NotChecked=44, Total=600 [2025-03-09 00:48:54,388 INFO L87 Difference]: Start difference. First operand 1800 states and 2127 transitions. Second operand has 23 states, 22 states have (on average 6.2272727272727275) internal successors, (137), 22 states have internal predecessors, (137), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-09 00:49:01,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:49:01,131 INFO L93 Difference]: Finished difference Result 1816 states and 2151 transitions. [2025-03-09 00:49:01,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-03-09 00:49:01,131 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 6.2272727272727275) internal successors, (137), 22 states have internal predecessors, (137), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 69 [2025-03-09 00:49:01,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:49:01,133 INFO L225 Difference]: With dead ends: 1816 [2025-03-09 00:49:01,133 INFO L226 Difference]: Without dead ends: 1812 [2025-03-09 00:49:01,134 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=407, Invalid=2046, Unknown=1, NotChecked=96, Total=2550 [2025-03-09 00:49:01,134 INFO L435 NwaCegarLoop]: 859 mSDtfsCounter, 1163 mSDsluCounter, 9090 mSDsCounter, 0 mSdLazyCounter, 7847 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 9949 SdHoareTripleChecker+Invalid, 7902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 7847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2025-03-09 00:49:01,134 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1177 Valid, 9949 Invalid, 7902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 7847 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2025-03-09 00:49:01,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2025-03-09 00:49:01,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 1808. [2025-03-09 00:49:01,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1808 states, 1224 states have (on average 1.7181372549019607) internal successors, (2103), 1793 states have internal predecessors, (2103), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 11 states have call predecessors, (17), 15 states have call successors, (17) [2025-03-09 00:49:01,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1808 states to 1808 states and 2137 transitions. [2025-03-09 00:49:01,158 INFO L78 Accepts]: Start accepts. Automaton has 1808 states and 2137 transitions. Word has length 69 [2025-03-09 00:49:01,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:49:01,158 INFO L471 AbstractCegarLoop]: Abstraction has 1808 states and 2137 transitions. [2025-03-09 00:49:01,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 6.2272727272727275) internal successors, (137), 22 states have internal predecessors, (137), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-09 00:49:01,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1808 states and 2137 transitions. [2025-03-09 00:49:01,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-03-09 00:49:01,160 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:49:01,161 INFO L218 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:49:01,169 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2025-03-09 00:49:01,379 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-03-09 00:49:01,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:49:01,561 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr719REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2025-03-09 00:49:01,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:49:01,562 INFO L85 PathProgramCache]: Analyzing trace with hash 797481580, now seen corresponding path program 1 times [2025-03-09 00:49:01,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 00:49:01,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1466095783] [2025-03-09 00:49:01,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:49:01,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:49:01,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 00:49:01,564 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 00:49:01,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-03-09 00:49:01,712 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-03-09 00:49:01,789 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-03-09 00:49:01,789 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:49:01,789 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:49:01,799 INFO L256 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-09 00:49:01,800 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 00:49:01,890 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:49:01,890 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 00:49:02,235 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:49:02,236 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 00:49:02,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466095783] [2025-03-09 00:49:02,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466095783] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 00:49:02,236 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 00:49:02,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2025-03-09 00:49:02,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252497448] [2025-03-09 00:49:02,236 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 00:49:02,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-03-09 00:49:02,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 00:49:02,237 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-03-09 00:49:02,237 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2025-03-09 00:49:02,237 INFO L87 Difference]: Start difference. First operand 1808 states and 2137 transitions. Second operand has 26 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 26 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-09 00:49:03,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:49:03,317 INFO L93 Difference]: Finished difference Result 1832 states and 2176 transitions. [2025-03-09 00:49:03,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2025-03-09 00:49:03,317 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 26 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 75 [2025-03-09 00:49:03,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:49:03,320 INFO L225 Difference]: With dead ends: 1832 [2025-03-09 00:49:03,320 INFO L226 Difference]: Without dead ends: 1826 [2025-03-09 00:49:03,320 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2025-03-09 00:49:03,321 INFO L435 NwaCegarLoop]: 1440 mSDtfsCounter, 15 mSDsluCounter, 15795 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 17235 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-09 00:49:03,321 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 17235 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-09 00:49:03,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1826 states. [2025-03-09 00:49:03,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1826 to 1826. [2025-03-09 00:49:03,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1826 states, 1242 states have (on average 1.711755233494364) internal successors, (2126), 1811 states have internal predecessors, (2126), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 11 states have call predecessors, (17), 15 states have call successors, (17) [2025-03-09 00:49:03,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1826 states to 1826 states and 2160 transitions. [2025-03-09 00:49:03,335 INFO L78 Accepts]: Start accepts. Automaton has 1826 states and 2160 transitions. Word has length 75 [2025-03-09 00:49:03,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:49:03,335 INFO L471 AbstractCegarLoop]: Abstraction has 1826 states and 2160 transitions. [2025-03-09 00:49:03,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 26 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-09 00:49:03,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1826 states and 2160 transitions. [2025-03-09 00:49:03,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-03-09 00:49:03,336 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:49:03,336 INFO L218 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:49:03,348 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-03-09 00:49:03,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:49:03,536 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr719REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2025-03-09 00:49:03,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:49:03,537 INFO L85 PathProgramCache]: Analyzing trace with hash 500220972, now seen corresponding path program 2 times [2025-03-09 00:49:03,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 00:49:03,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1652249732] [2025-03-09 00:49:03,537 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 00:49:03,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:49:03,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 00:49:03,539 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 00:49:03,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-03-09 00:49:03,705 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 87 statements into 2 equivalence classes. [2025-03-09 00:49:09,416 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 87 of 87 statements. [2025-03-09 00:49:09,416 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 00:49:09,416 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:49:09,434 INFO L256 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 64 conjuncts are in the unsatisfiable core [2025-03-09 00:49:09,440 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 00:49:09,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-03-09 00:49:09,497 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-03-09 00:49:09,497 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-03-09 00:49:09,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-03-09 00:49:09,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-09 00:49:09,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2025-03-09 00:49:09,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2025-03-09 00:49:09,852 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-03-09 00:49:09,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2025-03-09 00:49:09,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2025-03-09 00:49:09,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2025-03-09 00:49:09,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2025-03-09 00:49:09,900 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2025-03-09 00:49:09,900 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 00:49:10,177 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_1540 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1541 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv20 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_1540) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_1541) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_1540 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_1540) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv16 32) .cse1) (bvadd (_ bv20 32) .cse1)))))) is different from false [2025-03-09 00:49:10,181 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 00:49:10,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652249732] [2025-03-09 00:49:10,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1652249732] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 00:49:10,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1281465316] [2025-03-09 00:49:10,181 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 00:49:10,181 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-03-09 00:49:10,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2025-03-09 00:49:10,183 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-03-09 00:49:10,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2025-03-09 00:49:10,425 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 87 statements into 2 equivalence classes. [2025-03-09 00:49:11,214 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 87 of 87 statements. [2025-03-09 00:49:11,214 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 00:49:11,214 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:49:11,240 INFO L256 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 42 conjuncts are in the unsatisfiable core [2025-03-09 00:49:11,242 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 00:49:11,880 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:49:11,881 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 00:49:13,366 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:49:13,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1281465316] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 00:49:13,366 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 00:49:13,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 26, 26] total 57 [2025-03-09 00:49:13,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011404855] [2025-03-09 00:49:13,366 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 00:49:13,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2025-03-09 00:49:13,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 00:49:13,367 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2025-03-09 00:49:13,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=697, Invalid=2728, Unknown=1, NotChecked=114, Total=3540 [2025-03-09 00:49:13,368 INFO L87 Difference]: Start difference. First operand 1826 states and 2160 transitions. Second operand has 57 states, 56 states have (on average 3.0535714285714284) internal successors, (171), 57 states have internal predecessors, (171), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)