./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test15-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test15-2.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 d2e5061cdab54d9faeb4b87debefa6d4cd511c313e4ad95bcaf137fbc78127a3 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 07:43:03,004 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 07:43:03,063 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-04 07:43:03,068 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 07:43:03,068 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 07:43:03,088 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 07:43:03,089 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 07:43:03,089 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 07:43:03,090 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 07:43:03,090 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 07:43:03,090 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 07:43:03,090 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 07:43:03,090 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 07:43:03,090 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 07:43:03,091 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 07:43:03,091 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 07:43:03,091 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 07:43:03,091 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 07:43:03,092 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 07:43:03,092 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 07:43:03,092 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 07:43:03,092 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 07:43:03,092 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-04 07:43:03,092 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 07:43:03,092 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 07:43:03,092 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 07:43:03,092 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 07:43:03,092 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 07:43:03,092 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 07:43:03,092 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 07:43:03,093 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 07:43:03,093 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 07:43:03,093 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 07:43:03,093 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 07:43:03,093 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 07:43:03,093 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 07:43:03,093 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 07:43:03,093 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 07:43:03,093 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 07:43:03,093 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 07:43:03,093 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 07:43:03,093 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 07:43:03,093 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 -> d2e5061cdab54d9faeb4b87debefa6d4cd511c313e4ad95bcaf137fbc78127a3 [2025-03-04 07:43:03,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 07:43:03,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 07:43:03,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 07:43:03,337 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 07:43:03,338 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 07:43:03,339 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test15-2.i [2025-03-04 07:43:04,506 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/449fe9ba5/5de4c06ebebe499d864848c07312a3ad/FLAG77ddb37d8 [2025-03-04 07:43:04,773 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 07:43:04,774 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test15-2.i [2025-03-04 07:43:04,784 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/449fe9ba5/5de4c06ebebe499d864848c07312a3ad/FLAG77ddb37d8 [2025-03-04 07:43:05,073 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/449fe9ba5/5de4c06ebebe499d864848c07312a3ad [2025-03-04 07:43:05,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 07:43:05,076 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 07:43:05,077 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 07:43:05,077 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 07:43:05,080 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 07:43:05,080 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 07:43:05" (1/1) ... [2025-03-04 07:43:05,081 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c9306f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:43:05, skipping insertion in model container [2025-03-04 07:43:05,081 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 07:43:05" (1/1) ... [2025-03-04 07:43:05,100 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 07:43:05,295 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:43:05,329 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:43:05,333 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:43:05,334 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:43:05,334 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:43:05,336 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 07:43:05,349 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2025-03-04 07:43:05,350 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@785dafa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:43:05, skipping insertion in model container [2025-03-04 07:43:05,350 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 07:43:05,350 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-03-04 07:43:05,351 INFO L158 Benchmark]: Toolchain (without parser) took 275.22ms. Allocated memory is still 167.8MB. Free memory was 133.0MB in the beginning and 118.2MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 07:43:05,352 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 126.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 07:43:05,352 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.33ms. Allocated memory is still 167.8MB. Free memory was 133.0MB in the beginning and 118.2MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 07:43:05,353 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 126.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 273.33ms. Allocated memory is still 167.8MB. Free memory was 133.0MB in the beginning and 118.2MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 607]: 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/ldv-memsafety/memleaks_test15-2.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 d2e5061cdab54d9faeb4b87debefa6d4cd511c313e4ad95bcaf137fbc78127a3 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 07:43:06,944 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 07:43:07,035 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-03-04 07:43:07,048 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 07:43:07,049 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 07:43:07,069 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 07:43:07,070 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 07:43:07,071 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 07:43:07,071 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 07:43:07,071 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 07:43:07,072 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 07:43:07,072 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 07:43:07,072 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 07:43:07,072 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 07:43:07,073 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 07:43:07,073 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 07:43:07,073 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 07:43:07,073 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 07:43:07,073 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 07:43:07,073 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 07:43:07,074 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 07:43:07,074 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 07:43:07,074 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-04 07:43:07,074 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 07:43:07,074 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 07:43:07,074 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-04 07:43:07,074 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-04 07:43:07,074 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 07:43:07,074 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 07:43:07,074 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 07:43:07,075 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 07:43:07,075 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 07:43:07,075 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 07:43:07,075 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 07:43:07,075 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 07:43:07,075 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 07:43:07,075 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 07:43:07,075 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 07:43:07,075 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-04 07:43:07,075 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-04 07:43:07,076 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 07:43:07,076 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 07:43:07,076 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 07:43:07,076 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 07:43:07,076 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 -> d2e5061cdab54d9faeb4b87debefa6d4cd511c313e4ad95bcaf137fbc78127a3 [2025-03-04 07:43:07,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 07:43:07,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 07:43:07,333 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 07:43:07,334 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 07:43:07,335 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 07:43:07,336 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test15-2.i [2025-03-04 07:43:07,874 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c58919deb/119cd7eabd1548089d1d80c9de37ff5e/FLAG50037d99d [2025-03-04 07:43:09,501 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 07:43:09,502 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test15-2.i [2025-03-04 07:43:09,519 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c58919deb/119cd7eabd1548089d1d80c9de37ff5e/FLAG50037d99d [2025-03-04 07:43:09,535 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c58919deb/119cd7eabd1548089d1d80c9de37ff5e [2025-03-04 07:43:09,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 07:43:09,540 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 07:43:09,542 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 07:43:09,543 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 07:43:09,546 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 07:43:09,547 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 07:43:09" (1/1) ... [2025-03-04 07:43:09,547 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@774fac32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:43:09, skipping insertion in model container [2025-03-04 07:43:09,547 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 07:43:09" (1/1) ... [2025-03-04 07:43:09,579 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 07:43:09,775 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:43:09,817 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:43:09,824 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:43:09,824 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:43:09,824 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:43:09,826 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 07:43:09,838 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-03-04 07:43:09,847 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 07:43:09,877 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:43:09,902 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:43:09,904 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:43:09,904 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:43:09,904 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:43:09,907 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 07:43:09,914 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 07:43:09,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 07:43:10,006 INFO L204 MainTranslator]: Completed translation [2025-03-04 07:43:10,007 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:43:10 WrapperNode [2025-03-04 07:43:10,009 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 07:43:10,010 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 07:43:10,010 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 07:43:10,010 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 07:43:10,015 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:43:10" (1/1) ... [2025-03-04 07:43:10,038 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:43:10" (1/1) ... [2025-03-04 07:43:10,058 INFO L138 Inliner]: procedures = 176, calls = 104, calls flagged for inlining = 31, calls inlined = 14, statements flattened = 185 [2025-03-04 07:43:10,059 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 07:43:10,059 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 07:43:10,059 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 07:43:10,059 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 07:43:10,065 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:43:10" (1/1) ... [2025-03-04 07:43:10,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:43:10" (1/1) ... [2025-03-04 07:43:10,070 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:43:10" (1/1) ... [2025-03-04 07:43:10,106 INFO L175 MemorySlicer]: Split 20 memory accesses to 2 slices as follows [2, 18]. 90 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 8 writes are split as follows [0, 8]. [2025-03-04 07:43:10,107 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:43:10" (1/1) ... [2025-03-04 07:43:10,107 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:43:10" (1/1) ... [2025-03-04 07:43:10,122 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:43:10" (1/1) ... [2025-03-04 07:43:10,122 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:43:10" (1/1) ... [2025-03-04 07:43:10,128 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:43:10" (1/1) ... [2025-03-04 07:43:10,129 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:43:10" (1/1) ... [2025-03-04 07:43:10,135 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 07:43:10,138 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 07:43:10,138 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 07:43:10,138 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 07:43:10,139 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:43:10" (1/1) ... [2025-03-04 07:43:10,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 07:43:10,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:43:10,168 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 07:43:10,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 07:43:10,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-03-04 07:43:10,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-03-04 07:43:10,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2025-03-04 07:43:10,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2025-03-04 07:43:10,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 07:43:10,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 07:43:10,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 07:43:10,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 07:43:10,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_hid_set_drvdata [2025-03-04 07:43:10,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_hid_set_drvdata [2025-03-04 07:43:10,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 07:43:10,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 07:43:10,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2025-03-04 07:43:10,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2025-03-04 07:43:10,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-04 07:43:10,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-04 07:43:10,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 07:43:10,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 07:43:10,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 07:43:10,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 07:43:10,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 07:43:10,315 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 07:43:10,316 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 07:43:10,373 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L527: havoc #t~malloc12.base, #t~malloc12.offset; [2025-03-04 07:43:10,729 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L762: havoc ldv_hid_get_drvdata_#t~ret42#1.base, ldv_hid_get_drvdata_#t~ret42#1.offset; [2025-03-04 07:43:10,729 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L533: havoc ldv_zalloc_#t~malloc13#1.base, ldv_zalloc_#t~malloc13#1.offset; [2025-03-04 07:43:10,730 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L775: havoc ldv_arvo_init_arvo_device_struct_#t~ret46#1; [2025-03-04 07:43:10,730 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L619: havoc ldv_dev_get_drvdata_#t~mem29#1.base, ldv_dev_get_drvdata_#t~mem29#1.offset; [2025-03-04 07:43:10,753 INFO L? ?]: Removed 162 outVars from TransFormulas that were not future-live. [2025-03-04 07:43:10,754 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 07:43:10,762 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 07:43:10,762 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 07:43:10,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 07:43:10 BoogieIcfgContainer [2025-03-04 07:43:10,763 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 07:43:10,764 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 07:43:10,764 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 07:43:10,769 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 07:43:10,769 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 07:43:09" (1/3) ... [2025-03-04 07:43:10,769 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1290f564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 07:43:10, skipping insertion in model container [2025-03-04 07:43:10,769 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:43:10" (2/3) ... [2025-03-04 07:43:10,770 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1290f564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 07:43:10, skipping insertion in model container [2025-03-04 07:43:10,770 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 07:43:10" (3/3) ... [2025-03-04 07:43:10,771 INFO L128 eAbstractionObserver]: Analyzing ICFG memleaks_test15-2.i [2025-03-04 07:43:10,783 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 07:43:10,784 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG memleaks_test15-2.i that has 3 procedures, 136 locations, 1 initial locations, 0 loop locations, and 50 error locations. [2025-03-04 07:43:10,812 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 07:43:10,820 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;@75b66bb4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 07:43:10,820 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2025-03-04 07:43:10,824 INFO L276 IsEmpty]: Start isEmpty. Operand has 136 states, 78 states have (on average 1.7820512820512822) internal successors, (139), 128 states have internal predecessors, (139), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-04 07:43:10,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-03-04 07:43:10,827 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:43:10,828 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:43:10,828 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2025-03-04 07:43:10,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:43:10,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1607513928, now seen corresponding path program 1 times [2025-03-04 07:43:10,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:43:10,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [505744148] [2025-03-04 07:43:10,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:43:10,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:10,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:43:10,843 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:43:10,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 07:43:10,910 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-04 07:43:10,922 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-04 07:43:10,922 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:43:10,922 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:43:10,924 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 07:43:10,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:43:10,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:43:10,985 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:43:10,985 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:43:10,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505744148] [2025-03-04 07:43:10,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [505744148] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:43:10,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:43:10,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 07:43:10,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434281922] [2025-03-04 07:43:10,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:43:10,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 07:43:10,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:43:11,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 07:43:11,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 07:43:11,006 INFO L87 Difference]: Start difference. First operand has 136 states, 78 states have (on average 1.7820512820512822) internal successors, (139), 128 states have internal predecessors, (139), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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) [2025-03-04 07:43:11,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:43:11,105 INFO L93 Difference]: Finished difference Result 251 states and 285 transitions. [2025-03-04 07:43:11,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 07:43:11,107 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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 11 [2025-03-04 07:43:11,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:43:11,116 INFO L225 Difference]: With dead ends: 251 [2025-03-04 07:43:11,117 INFO L226 Difference]: Without dead ends: 249 [2025-03-04 07:43:11,118 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 07:43:11,121 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 116 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 07:43:11,121 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 551 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 07:43:11,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2025-03-04 07:43:11,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 138. [2025-03-04 07:43:11,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 80 states have (on average 1.75) internal successors, (140), 129 states have internal predecessors, (140), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2025-03-04 07:43:11,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 153 transitions. [2025-03-04 07:43:11,173 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 153 transitions. Word has length 11 [2025-03-04 07:43:11,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:43:11,173 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 153 transitions. [2025-03-04 07:43:11,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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) [2025-03-04 07:43:11,173 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 153 transitions. [2025-03-04 07:43:11,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-03-04 07:43:11,174 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:43:11,174 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:43:11,182 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 07:43:11,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:11,375 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2025-03-04 07:43:11,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:43:11,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1799949687, now seen corresponding path program 1 times [2025-03-04 07:43:11,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:43:11,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1862866435] [2025-03-04 07:43:11,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:43:11,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:11,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:43:11,379 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:43:11,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 07:43:11,428 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-04 07:43:11,432 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-04 07:43:11,433 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:43:11,433 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:43:11,433 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 07:43:11,434 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:43:11,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:43:11,462 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:43:11,462 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:43:11,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862866435] [2025-03-04 07:43:11,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1862866435] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:43:11,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:43:11,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 07:43:11,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160322985] [2025-03-04 07:43:11,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:43:11,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 07:43:11,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:43:11,464 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 07:43:11,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 07:43:11,465 INFO L87 Difference]: Start difference. First operand 138 states and 153 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2025-03-04 07:43:11,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:43:11,759 INFO L93 Difference]: Finished difference Result 228 states and 253 transitions. [2025-03-04 07:43:11,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 07:43:11,760 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 11 [2025-03-04 07:43:11,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:43:11,761 INFO L225 Difference]: With dead ends: 228 [2025-03-04 07:43:11,761 INFO L226 Difference]: Without dead ends: 226 [2025-03-04 07:43:11,761 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 07:43:11,761 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 93 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 07:43:11,762 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 437 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 07:43:11,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2025-03-04 07:43:11,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 134. [2025-03-04 07:43:11,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 77 states have (on average 1.7662337662337662) internal successors, (136), 126 states have internal predecessors, (136), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-04 07:43:11,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 146 transitions. [2025-03-04 07:43:11,777 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 146 transitions. Word has length 11 [2025-03-04 07:43:11,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:43:11,777 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 146 transitions. [2025-03-04 07:43:11,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2025-03-04 07:43:11,778 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 146 transitions. [2025-03-04 07:43:11,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-03-04 07:43:11,779 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:43:11,779 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:43:11,787 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 07:43:11,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:11,980 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2025-03-04 07:43:11,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:43:11,980 INFO L85 PathProgramCache]: Analyzing trace with hash 117572569, now seen corresponding path program 1 times [2025-03-04 07:43:11,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:43:11,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1984761932] [2025-03-04 07:43:11,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:43:11,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:11,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:43:11,983 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:43:11,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 07:43:12,030 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-04 07:43:12,036 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-04 07:43:12,037 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:43:12,037 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:43:12,037 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 07:43:12,038 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:43:12,063 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 07:43:12,063 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 07:43:12,092 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 07:43:12,092 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:43:12,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984761932] [2025-03-04 07:43:12,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984761932] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 07:43:12,093 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 07:43:12,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2025-03-04 07:43:12,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507317868] [2025-03-04 07:43:12,093 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 07:43:12,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 07:43:12,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:43:12,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 07:43:12,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 07:43:12,094 INFO L87 Difference]: Start difference. First operand 134 states and 146 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 07:43:12,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:43:12,123 INFO L93 Difference]: Finished difference Result 133 states and 145 transitions. [2025-03-04 07:43:12,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 07:43:12,124 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2025-03-04 07:43:12,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:43:12,124 INFO L225 Difference]: With dead ends: 133 [2025-03-04 07:43:12,124 INFO L226 Difference]: Without dead ends: 133 [2025-03-04 07:43:12,125 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 07:43:12,125 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 111 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 07:43:12,125 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 430 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 07:43:12,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2025-03-04 07:43:12,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2025-03-04 07:43:12,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 77 states have (on average 1.7532467532467533) internal successors, (135), 125 states have internal predecessors, (135), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-04 07:43:12,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 145 transitions. [2025-03-04 07:43:12,130 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 145 transitions. Word has length 17 [2025-03-04 07:43:12,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:43:12,130 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 145 transitions. [2025-03-04 07:43:12,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 07:43:12,130 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 145 transitions. [2025-03-04 07:43:12,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-03-04 07:43:12,131 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:43:12,131 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:43:12,137 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-04 07:43:12,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:12,332 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2025-03-04 07:43:12,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:43:12,332 INFO L85 PathProgramCache]: Analyzing trace with hash -650217670, now seen corresponding path program 1 times [2025-03-04 07:43:12,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:43:12,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [405959693] [2025-03-04 07:43:12,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:43:12,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:12,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:43:12,335 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:43:12,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 07:43:12,392 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-04 07:43:12,399 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-04 07:43:12,399 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:43:12,399 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:43:12,400 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 07:43:12,401 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:43:12,427 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 07:43:12,427 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:43:12,427 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:43:12,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405959693] [2025-03-04 07:43:12,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405959693] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:43:12,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:43:12,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 07:43:12,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884283504] [2025-03-04 07:43:12,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:43:12,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 07:43:12,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:43:12,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 07:43:12,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 07:43:12,429 INFO L87 Difference]: Start difference. First operand 133 states and 145 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 07:43:12,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:43:12,532 INFO L93 Difference]: Finished difference Result 233 states and 269 transitions. [2025-03-04 07:43:12,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 07:43:12,533 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2025-03-04 07:43:12,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:43:12,534 INFO L225 Difference]: With dead ends: 233 [2025-03-04 07:43:12,535 INFO L226 Difference]: Without dead ends: 233 [2025-03-04 07:43:12,535 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 07:43:12,535 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 101 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 07:43:12,536 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 509 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 07:43:12,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2025-03-04 07:43:12,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 137. [2025-03-04 07:43:12,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 80 states have (on average 1.725) internal successors, (138), 128 states have internal predecessors, (138), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2025-03-04 07:43:12,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 151 transitions. [2025-03-04 07:43:12,545 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 151 transitions. Word has length 18 [2025-03-04 07:43:12,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:43:12,546 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 151 transitions. [2025-03-04 07:43:12,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 07:43:12,546 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 151 transitions. [2025-03-04 07:43:12,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-03-04 07:43:12,546 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:43:12,546 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:43:12,554 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-04 07:43:12,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:12,747 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2025-03-04 07:43:12,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:43:12,747 INFO L85 PathProgramCache]: Analyzing trace with hash 237286011, now seen corresponding path program 1 times [2025-03-04 07:43:12,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:43:12,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [375955736] [2025-03-04 07:43:12,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:43:12,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:12,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:43:12,750 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:43:12,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-04 07:43:12,800 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-04 07:43:12,809 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-04 07:43:12,809 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:43:12,809 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:43:12,810 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 07:43:12,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:43:12,854 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:43:12,854 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 07:43:12,884 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 07:43:12,884 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:43:12,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375955736] [2025-03-04 07:43:12,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375955736] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 07:43:12,884 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 07:43:12,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 5 [2025-03-04 07:43:12,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858220107] [2025-03-04 07:43:12,884 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 07:43:12,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 07:43:12,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:43:12,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 07:43:12,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-04 07:43:12,885 INFO L87 Difference]: Start difference. First operand 137 states and 151 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 07:43:13,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:43:13,004 INFO L93 Difference]: Finished difference Result 136 states and 150 transitions. [2025-03-04 07:43:13,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 07:43:13,005 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 18 [2025-03-04 07:43:13,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:43:13,006 INFO L225 Difference]: With dead ends: 136 [2025-03-04 07:43:13,006 INFO L226 Difference]: Without dead ends: 136 [2025-03-04 07:43:13,006 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-04 07:43:13,007 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 238 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 07:43:13,007 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 352 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 07:43:13,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2025-03-04 07:43:13,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2025-03-04 07:43:13,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 80 states have (on average 1.7125) internal successors, (137), 127 states have internal predecessors, (137), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2025-03-04 07:43:13,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 150 transitions. [2025-03-04 07:43:13,017 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 150 transitions. Word has length 18 [2025-03-04 07:43:13,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:43:13,017 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 150 transitions. [2025-03-04 07:43:13,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 07:43:13,017 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 150 transitions. [2025-03-04 07:43:13,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-03-04 07:43:13,018 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:43:13,018 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:43:13,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-04 07:43:13,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:13,219 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2025-03-04 07:43:13,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:43:13,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1234068266, now seen corresponding path program 1 times [2025-03-04 07:43:13,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:43:13,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [532235544] [2025-03-04 07:43:13,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:43:13,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:13,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:43:13,221 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:43:13,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-04 07:43:13,265 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-04 07:43:13,271 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-04 07:43:13,271 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:43:13,271 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:43:13,272 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 07:43:13,274 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:43:13,290 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-03-04 07:43:13,337 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:43:13,337 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 07:43:13,476 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:43:13,477 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:43:13,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532235544] [2025-03-04 07:43:13,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [532235544] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 07:43:13,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 07:43:13,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2025-03-04 07:43:13,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567326118] [2025-03-04 07:43:13,477 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 07:43:13,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 07:43:13,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:43:13,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 07:43:13,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-04 07:43:13,478 INFO L87 Difference]: Start difference. First operand 136 states and 150 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 07:43:13,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:43:13,891 INFO L93 Difference]: Finished difference Result 209 states and 233 transitions. [2025-03-04 07:43:13,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 07:43:13,892 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2025-03-04 07:43:13,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:43:13,893 INFO L225 Difference]: With dead ends: 209 [2025-03-04 07:43:13,893 INFO L226 Difference]: Without dead ends: 209 [2025-03-04 07:43:13,893 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-04 07:43:13,894 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 111 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 07:43:13,894 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 433 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 07:43:13,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2025-03-04 07:43:13,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 156. [2025-03-04 07:43:13,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 98 states have (on average 1.6938775510204083) internal successors, (166), 143 states have internal predecessors, (166), 7 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (12), 10 states have call predecessors, (12), 7 states have call successors, (12) [2025-03-04 07:43:13,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 185 transitions. [2025-03-04 07:43:13,900 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 185 transitions. Word has length 19 [2025-03-04 07:43:13,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:43:13,900 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 185 transitions. [2025-03-04 07:43:13,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 07:43:13,900 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 185 transitions. [2025-03-04 07:43:13,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-03-04 07:43:13,901 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:43:13,901 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:43:13,906 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-04 07:43:14,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:14,105 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2025-03-04 07:43:14,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:43:14,105 INFO L85 PathProgramCache]: Analyzing trace with hash 273483543, now seen corresponding path program 1 times [2025-03-04 07:43:14,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:43:14,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [826220464] [2025-03-04 07:43:14,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:43:14,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:14,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:43:14,107 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:43:14,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-04 07:43:14,148 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-04 07:43:14,153 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-04 07:43:14,154 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:43:14,154 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:43:14,156 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 07:43:14,156 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:43:14,181 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 07:43:14,181 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 07:43:14,205 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 07:43:14,205 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:43:14,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [826220464] [2025-03-04 07:43:14,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [826220464] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 07:43:14,206 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 07:43:14,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2025-03-04 07:43:14,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789147143] [2025-03-04 07:43:14,206 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 07:43:14,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 07:43:14,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:43:14,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 07:43:14,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 07:43:14,206 INFO L87 Difference]: Start difference. First operand 156 states and 185 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 07:43:14,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:43:14,271 INFO L93 Difference]: Finished difference Result 253 states and 283 transitions. [2025-03-04 07:43:14,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 07:43:14,275 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2025-03-04 07:43:14,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:43:14,276 INFO L225 Difference]: With dead ends: 253 [2025-03-04 07:43:14,276 INFO L226 Difference]: Without dead ends: 253 [2025-03-04 07:43:14,276 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 07:43:14,276 INFO L435 NwaCegarLoop]: 265 mSDtfsCounter, 110 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 07:43:14,277 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 928 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 07:43:14,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2025-03-04 07:43:14,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 208. [2025-03-04 07:43:14,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 148 states have (on average 1.7364864864864864) internal successors, (257), 193 states have internal predecessors, (257), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (14), 12 states have call predecessors, (14), 9 states have call successors, (14) [2025-03-04 07:43:14,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 280 transitions. [2025-03-04 07:43:14,285 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 280 transitions. Word has length 19 [2025-03-04 07:43:14,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:43:14,285 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 280 transitions. [2025-03-04 07:43:14,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 07:43:14,285 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 280 transitions. [2025-03-04 07:43:14,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-03-04 07:43:14,289 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:43:14,289 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:43:14,295 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-04 07:43:14,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:14,489 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr46REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2025-03-04 07:43:14,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:43:14,490 INFO L85 PathProgramCache]: Analyzing trace with hash -517211431, now seen corresponding path program 1 times [2025-03-04 07:43:14,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:43:14,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1105041152] [2025-03-04 07:43:14,490 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:43:14,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:14,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:43:14,492 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:43:14,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-04 07:43:14,530 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-04 07:43:14,537 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-04 07:43:14,537 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:43:14,537 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:43:14,538 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 07:43:14,539 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:43:14,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-03-04 07:43:14,596 WARN L873 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (and (= (store |c_old(#valid)| |ldv_malloc_#res.base| (select |c_#valid| |ldv_malloc_#res.base|)) |c_#valid|) (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#res.base|)))) is different from true [2025-03-04 07:43:14,630 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2025-03-04 07:43:14,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2025-03-04 07:43:14,635 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 2 not checked. [2025-03-04 07:43:14,636 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 07:43:18,793 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 07:43:18,794 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:43:18,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105041152] [2025-03-04 07:43:18,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105041152] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 07:43:18,794 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 07:43:18,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2025-03-04 07:43:18,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302730184] [2025-03-04 07:43:18,794 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 07:43:18,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 07:43:18,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:43:18,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 07:43:18,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=40, Unknown=2, NotChecked=12, Total=72 [2025-03-04 07:43:18,795 INFO L87 Difference]: Start difference. First operand 208 states and 280 transitions. Second operand has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 2 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-04 07:43:19,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:43:19,221 INFO L93 Difference]: Finished difference Result 268 states and 366 transitions. [2025-03-04 07:43:19,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 07:43:19,222 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 2 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 22 [2025-03-04 07:43:19,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:43:19,223 INFO L225 Difference]: With dead ends: 268 [2025-03-04 07:43:19,223 INFO L226 Difference]: Without dead ends: 268 [2025-03-04 07:43:19,223 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=23, Invalid=51, Unknown=2, NotChecked=14, Total=90 [2025-03-04 07:43:19,223 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 111 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 191 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 07:43:19,223 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 416 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 363 Invalid, 0 Unknown, 191 Unchecked, 0.4s Time] [2025-03-04 07:43:19,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2025-03-04 07:43:19,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 242. [2025-03-04 07:43:19,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 182 states have (on average 1.7197802197802199) internal successors, (313), 225 states have internal predecessors, (313), 11 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (18), 14 states have call predecessors, (18), 11 states have call successors, (18) [2025-03-04 07:43:19,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 342 transitions. [2025-03-04 07:43:19,229 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 342 transitions. Word has length 22 [2025-03-04 07:43:19,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:43:19,229 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 342 transitions. [2025-03-04 07:43:19,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 2 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-04 07:43:19,229 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 342 transitions. [2025-03-04 07:43:19,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-03-04 07:43:19,230 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:43:19,230 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:43:19,236 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-04 07:43:19,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:19,430 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr47REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2025-03-04 07:43:19,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:43:19,431 INFO L85 PathProgramCache]: Analyzing trace with hash -517211430, now seen corresponding path program 1 times [2025-03-04 07:43:19,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:43:19,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [573145153] [2025-03-04 07:43:19,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:43:19,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:19,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:43:19,434 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:43:19,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-04 07:43:19,475 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-04 07:43:19,485 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-04 07:43:19,485 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:43:19,485 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:43:19,486 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-04 07:43:19,488 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:43:19,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-03-04 07:43:19,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-03-04 07:43:19,612 WARN L873 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (and (= (store |c_old(#length)| |ldv_malloc_#res.base| (select |c_#length| |ldv_malloc_#res.base|)) |c_#length|) (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#res.base|)))) is different from true [2025-03-04 07:43:19,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 07:43:19,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2025-03-04 07:43:19,649 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-03-04 07:43:19,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-03-04 07:43:19,664 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2025-03-04 07:43:19,664 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 07:43:19,785 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:43:19,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573145153] [2025-03-04 07:43:19,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573145153] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 07:43:19,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [819690189] [2025-03-04 07:43:19,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:43:19,785 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-03-04 07:43:19,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2025-03-04 07:43:19,787 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-03-04 07:43:19,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2025-03-04 07:43:19,841 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-04 07:43:19,869 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-04 07:43:19,869 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:43:19,869 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:43:19,870 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-04 07:43:19,872 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:43:19,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-03-04 07:43:19,887 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-03-04 07:43:19,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 07:43:19,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2025-03-04 07:43:19,954 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-03-04 07:43:19,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-03-04 07:43:19,956 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2025-03-04 07:43:19,956 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 07:43:24,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [819690189] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 07:43:24,045 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 07:43:24,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2025-03-04 07:43:24,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537548369] [2025-03-04 07:43:24,045 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 07:43:24,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 07:43:24,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:43:24,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 07:43:24,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=70, Unknown=1, NotChecked=16, Total=110 [2025-03-04 07:43:24,046 INFO L87 Difference]: Start difference. First operand 242 states and 342 transitions. Second operand has 9 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 07:43:24,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:43:24,805 INFO L93 Difference]: Finished difference Result 446 states and 615 transitions. [2025-03-04 07:43:24,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 07:43:24,806 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2025-03-04 07:43:24,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:43:24,807 INFO L225 Difference]: With dead ends: 446 [2025-03-04 07:43:24,807 INFO L226 Difference]: Without dead ends: 446 [2025-03-04 07:43:24,808 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=30, Invalid=105, Unknown=1, NotChecked=20, Total=156 [2025-03-04 07:43:24,808 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 138 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 1010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 288 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-04 07:43:24,808 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 857 Invalid, 1010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 707 Invalid, 0 Unknown, 288 Unchecked, 0.7s Time] [2025-03-04 07:43:24,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2025-03-04 07:43:24,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 386. [2025-03-04 07:43:24,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 322 states have (on average 1.7142857142857142) internal successors, (552), 365 states have internal predecessors, (552), 15 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (22), 18 states have call predecessors, (22), 15 states have call successors, (22) [2025-03-04 07:43:24,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 589 transitions. [2025-03-04 07:43:24,820 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 589 transitions. Word has length 22 [2025-03-04 07:43:24,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:43:24,820 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 589 transitions. [2025-03-04 07:43:24,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 07:43:24,820 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 589 transitions. [2025-03-04 07:43:24,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-03-04 07:43:24,820 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:43:24,820 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:43:24,824 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2025-03-04 07:43:25,028 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-04 07:43:25,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:25,225 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2025-03-04 07:43:25,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:43:25,225 INFO L85 PathProgramCache]: Analyzing trace with hash -528630476, now seen corresponding path program 1 times [2025-03-04 07:43:25,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:43:25,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [328891609] [2025-03-04 07:43:25,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:43:25,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:25,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:43:25,227 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:43:25,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-04 07:43:25,269 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-04 07:43:25,277 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-04 07:43:25,277 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:43:25,277 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:43:25,278 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-04 07:43:25,280 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:43:25,366 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_entry_point_~hdev~0#1.base_20| (_ BitVec 32))) (and (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_entry_point_~hdev~0#1.base_20| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_entry_point_~hdev~0#1.base_20|)))) is different from true [2025-03-04 07:43:25,372 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 07:43:25,372 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 07:43:25,425 INFO L349 Elim1Store]: treesize reduction 30, result has 21.1 percent of original size [2025-03-04 07:43:25,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 38 [2025-03-04 07:43:25,623 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:43:25,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [328891609] [2025-03-04 07:43:25,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [328891609] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 07:43:25,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1751432501] [2025-03-04 07:43:25,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:43:25,623 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-03-04 07:43:25,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2025-03-04 07:43:25,625 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-03-04 07:43:25,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2025-03-04 07:43:25,691 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-04 07:43:25,711 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-04 07:43:25,712 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:43:25,712 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:43:25,713 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-04 07:43:25,718 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:43:25,849 WARN L873 $PredicateComparison]: unable to prove that (and (= (select |c_ULTIMATE.start_main_old_#valid#1| (_ bv0 32)) (_ bv0 1)) (exists ((|v_ULTIMATE.start_entry_point_~hdev~0#1.base_23| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_entry_point_~hdev~0#1.base_23|)) (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_entry_point_~hdev~0#1.base_23| (_ bv0 1)) |c_#valid|)))) is different from true [2025-03-04 07:43:25,855 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 07:43:25,855 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 07:43:25,913 INFO L349 Elim1Store]: treesize reduction 30, result has 21.1 percent of original size [2025-03-04 07:43:25,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 38 [2025-03-04 07:43:26,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1751432501] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 07:43:26,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 07:43:26,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2025-03-04 07:43:26,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643840726] [2025-03-04 07:43:26,195 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 07:43:26,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 07:43:26,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:43:26,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 07:43:26,196 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=107, Unknown=2, NotChecked=42, Total=182 [2025-03-04 07:43:26,196 INFO L87 Difference]: Start difference. First operand 386 states and 589 transitions. Second operand has 13 states, 10 states have (on average 2.7) internal successors, (27), 11 states have internal predecessors, (27), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-04 07:43:26,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:43:26,864 INFO L93 Difference]: Finished difference Result 488 states and 697 transitions. [2025-03-04 07:43:26,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-04 07:43:26,865 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 2.7) internal successors, (27), 11 states have internal predecessors, (27), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 21 [2025-03-04 07:43:26,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:43:26,867 INFO L225 Difference]: With dead ends: 488 [2025-03-04 07:43:26,867 INFO L226 Difference]: Without dead ends: 480 [2025-03-04 07:43:26,867 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 53 SyntacticMatches, 6 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=74, Invalid=274, Unknown=2, NotChecked=70, Total=420 [2025-03-04 07:43:26,867 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 339 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 534 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-04 07:43:26,867 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 780 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 651 Invalid, 0 Unknown, 534 Unchecked, 0.6s Time] [2025-03-04 07:43:26,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2025-03-04 07:43:26,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 395. [2025-03-04 07:43:26,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 331 states have (on average 1.7129909365558913) internal successors, (567), 373 states have internal predecessors, (567), 15 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (22), 19 states have call predecessors, (22), 15 states have call successors, (22) [2025-03-04 07:43:26,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 604 transitions. [2025-03-04 07:43:26,878 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 604 transitions. Word has length 21 [2025-03-04 07:43:26,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:43:26,882 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 604 transitions. [2025-03-04 07:43:26,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 2.7) internal successors, (27), 11 states have internal predecessors, (27), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-04 07:43:26,882 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 604 transitions. [2025-03-04 07:43:26,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-03-04 07:43:26,883 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:43:26,883 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:43:26,889 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-03-04 07:43:27,089 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2025-03-04 07:43:27,283 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,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2025-03-04 07:43:27,284 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr46REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2025-03-04 07:43:27,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:43:27,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1980804506, now seen corresponding path program 1 times [2025-03-04 07:43:27,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:43:27,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [46471450] [2025-03-04 07:43:27,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:43:27,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:27,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:43:27,287 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:43:27,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-04 07:43:27,333 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-04 07:43:27,339 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-04 07:43:27,340 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:43:27,340 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:43:27,340 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 07:43:27,341 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:43:27,367 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 07:43:27,367 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:43:27,367 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:43:27,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [46471450] [2025-03-04 07:43:27,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [46471450] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:43:27,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:43:27,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 07:43:27,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630664075] [2025-03-04 07:43:27,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:43:27,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 07:43:27,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:43:27,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 07:43:27,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 07:43:27,368 INFO L87 Difference]: Start difference. First operand 395 states and 604 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 07:43:27,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:43:27,404 INFO L93 Difference]: Finished difference Result 232 states and 312 transitions. [2025-03-04 07:43:27,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 07:43:27,405 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2025-03-04 07:43:27,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:43:27,406 INFO L225 Difference]: With dead ends: 232 [2025-03-04 07:43:27,406 INFO L226 Difference]: Without dead ends: 228 [2025-03-04 07:43:27,406 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 07:43:27,406 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 07:43:27,406 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 534 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 07:43:27,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2025-03-04 07:43:27,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2025-03-04 07:43:27,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 176 states have (on average 1.6306818181818181) internal successors, (287), 215 states have internal predecessors, (287), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 10 states have call predecessors, (12), 9 states have call successors, (12) [2025-03-04 07:43:27,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 308 transitions. [2025-03-04 07:43:27,414 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 308 transitions. Word has length 22 [2025-03-04 07:43:27,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:43:27,415 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 308 transitions. [2025-03-04 07:43:27,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 07:43:27,415 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 308 transitions. [2025-03-04 07:43:27,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2025-03-04 07:43:27,417 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:43:27,417 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:43:27,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-03-04 07:43:27,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:27,618 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2025-03-04 07:43:27,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:43:27,618 INFO L85 PathProgramCache]: Analyzing trace with hash 919749827, now seen corresponding path program 1 times [2025-03-04 07:43:27,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:43:27,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1740857385] [2025-03-04 07:43:27,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:43:27,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:27,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:43:27,620 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:43:27,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-04 07:43:27,668 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-04 07:43:27,677 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-04 07:43:27,678 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:43:27,678 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:43:27,678 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 07:43:27,679 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:43:27,696 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 [2025-03-04 07:43:27,706 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 20 treesize of output 8 [2025-03-04 07:43:27,711 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-04 07:43:27,711 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:43:27,711 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:43:27,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740857385] [2025-03-04 07:43:27,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740857385] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:43:27,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:43:27,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 07:43:27,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899210351] [2025-03-04 07:43:27,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:43:27,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 07:43:27,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:43:27,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 07:43:27,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 07:43:27,712 INFO L87 Difference]: Start difference. First operand 228 states and 308 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 07:43:27,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:43:27,806 INFO L93 Difference]: Finished difference Result 244 states and 326 transitions. [2025-03-04 07:43:27,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 07:43:27,807 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2025-03-04 07:43:27,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:43:27,807 INFO L225 Difference]: With dead ends: 244 [2025-03-04 07:43:27,808 INFO L226 Difference]: Without dead ends: 244 [2025-03-04 07:43:27,808 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-04 07:43:27,808 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 6 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 07:43:27,808 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 622 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 07:43:27,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2025-03-04 07:43:27,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 236. [2025-03-04 07:43:27,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 184 states have (on average 1.6032608695652173) internal successors, (295), 221 states have internal predecessors, (295), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 12 states have call predecessors, (12), 9 states have call successors, (12) [2025-03-04 07:43:27,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 316 transitions. [2025-03-04 07:43:27,815 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 316 transitions. Word has length 27 [2025-03-04 07:43:27,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:43:27,815 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 316 transitions. [2025-03-04 07:43:27,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 07:43:27,815 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 316 transitions. [2025-03-04 07:43:27,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2025-03-04 07:43:27,816 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:43:27,816 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:43:27,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-03-04 07:43:28,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:28,017 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2025-03-04 07:43:28,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:43:28,017 INFO L85 PathProgramCache]: Analyzing trace with hash -887704636, now seen corresponding path program 1 times [2025-03-04 07:43:28,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:43:28,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2079263765] [2025-03-04 07:43:28,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:43:28,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:28,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:43:28,019 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:43:28,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-04 07:43:28,063 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-04 07:43:28,074 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-04 07:43:28,074 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:43:28,074 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:43:28,076 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 07:43:28,076 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:43:28,117 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 07:43:28,118 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 07:43:28,148 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-04 07:43:28,148 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:43:28,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079263765] [2025-03-04 07:43:28,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079263765] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 07:43:28,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 07:43:28,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 5 [2025-03-04 07:43:28,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102042488] [2025-03-04 07:43:28,149 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 07:43:28,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 07:43:28,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:43:28,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 07:43:28,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-04 07:43:28,150 INFO L87 Difference]: Start difference. First operand 236 states and 316 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-04 07:43:28,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:43:28,254 INFO L93 Difference]: Finished difference Result 235 states and 312 transitions. [2025-03-04 07:43:28,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 07:43:28,255 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 27 [2025-03-04 07:43:28,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:43:28,255 INFO L225 Difference]: With dead ends: 235 [2025-03-04 07:43:28,255 INFO L226 Difference]: Without dead ends: 235 [2025-03-04 07:43:28,256 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-04 07:43:28,256 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 210 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 07:43:28,256 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 328 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 07:43:28,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2025-03-04 07:43:28,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2025-03-04 07:43:28,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 184 states have (on average 1.5815217391304348) internal successors, (291), 220 states have internal predecessors, (291), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 12 states have call predecessors, (12), 9 states have call successors, (12) [2025-03-04 07:43:28,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 312 transitions. [2025-03-04 07:43:28,262 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 312 transitions. Word has length 27 [2025-03-04 07:43:28,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:43:28,262 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 312 transitions. [2025-03-04 07:43:28,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-04 07:43:28,263 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 312 transitions. [2025-03-04 07:43:28,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-03-04 07:43:28,265 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:43:28,265 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:43:28,271 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-03-04 07:43:28,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:28,469 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr40REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2025-03-04 07:43:28,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:43:28,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1552373490, now seen corresponding path program 1 times [2025-03-04 07:43:28,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:43:28,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1449434932] [2025-03-04 07:43:28,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:43:28,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:28,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:43:28,471 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:43:28,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-04 07:43:28,515 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 07:43:28,523 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 07:43:28,524 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:43:28,524 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:43:28,524 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 07:43:28,525 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:43:28,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-03-04 07:43:28,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-04 07:43:28,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-03-04 07:43:28,563 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-04 07:43:28,563 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:43:28,563 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:43:28,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449434932] [2025-03-04 07:43:28,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449434932] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:43:28,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:43:28,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 07:43:28,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840607329] [2025-03-04 07:43:28,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:43:28,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 07:43:28,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:43:28,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 07:43:28,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 07:43:28,564 INFO L87 Difference]: Start difference. First operand 235 states and 312 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 07:43:28,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:43:28,770 INFO L93 Difference]: Finished difference Result 242 states and 320 transitions. [2025-03-04 07:43:28,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 07:43:28,770 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2025-03-04 07:43:28,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:43:28,771 INFO L225 Difference]: With dead ends: 242 [2025-03-04 07:43:28,772 INFO L226 Difference]: Without dead ends: 242 [2025-03-04 07:43:28,772 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-04 07:43:28,772 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 3 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 07:43:28,772 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 457 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 07:43:28,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2025-03-04 07:43:28,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 241. [2025-03-04 07:43:28,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 190 states have (on average 1.5736842105263158) internal successors, (299), 226 states have internal predecessors, (299), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 12 states have call predecessors, (12), 9 states have call successors, (12) [2025-03-04 07:43:28,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 320 transitions. [2025-03-04 07:43:28,777 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 320 transitions. Word has length 28 [2025-03-04 07:43:28,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:43:28,777 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 320 transitions. [2025-03-04 07:43:28,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 07:43:28,778 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 320 transitions. [2025-03-04 07:43:28,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-03-04 07:43:28,778 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:43:28,778 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:43:28,787 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-03-04 07:43:28,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:28,979 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr41REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2025-03-04 07:43:28,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:43:28,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1552373489, now seen corresponding path program 1 times [2025-03-04 07:43:28,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:43:28,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [468930534] [2025-03-04 07:43:28,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:43:28,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:28,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:43:28,981 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:43:28,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-04 07:43:29,024 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 07:43:29,035 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 07:43:29,035 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:43:29,035 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:43:29,036 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-04 07:43:29,038 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:43:29,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-03-04 07:43:29,088 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-04 07:43:29,095 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-03-04 07:43:29,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2025-03-04 07:43:29,171 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-04 07:43:29,171 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:43:29,171 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:43:29,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468930534] [2025-03-04 07:43:29,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468930534] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:43:29,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:43:29,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 07:43:29,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531653589] [2025-03-04 07:43:29,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:43:29,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 07:43:29,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:43:29,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 07:43:29,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-04 07:43:29,172 INFO L87 Difference]: Start difference. First operand 241 states and 320 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 07:43:29,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:43:29,497 INFO L93 Difference]: Finished difference Result 241 states and 318 transitions. [2025-03-04 07:43:29,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 07:43:29,498 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2025-03-04 07:43:29,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:43:29,499 INFO L225 Difference]: With dead ends: 241 [2025-03-04 07:43:29,499 INFO L226 Difference]: Without dead ends: 241 [2025-03-04 07:43:29,499 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-04 07:43:29,499 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 4 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 07:43:29,499 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 622 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 07:43:29,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2025-03-04 07:43:29,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2025-03-04 07:43:29,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 190 states have (on average 1.563157894736842) internal successors, (297), 226 states have internal predecessors, (297), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 12 states have call predecessors, (12), 9 states have call successors, (12) [2025-03-04 07:43:29,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 318 transitions. [2025-03-04 07:43:29,507 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 318 transitions. Word has length 28 [2025-03-04 07:43:29,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:43:29,508 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 318 transitions. [2025-03-04 07:43:29,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 07:43:29,508 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 318 transitions. [2025-03-04 07:43:29,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-03-04 07:43:29,508 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:43:29,509 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:43:29,518 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-03-04 07:43:29,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:29,709 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr40REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2025-03-04 07:43:29,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:43:29,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1748886995, now seen corresponding path program 1 times [2025-03-04 07:43:29,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:43:29,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1437291165] [2025-03-04 07:43:29,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:43:29,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:29,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:43:29,712 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:43:29,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-03-04 07:43:29,762 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 07:43:29,771 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 07:43:29,771 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:43:29,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:43:29,772 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-04 07:43:29,773 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:43:29,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-03-04 07:43:29,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-03-04 07:43:29,832 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-04 07:43:29,832 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:43:29,832 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:43:29,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437291165] [2025-03-04 07:43:29,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1437291165] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:43:29,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:43:29,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 07:43:29,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650893829] [2025-03-04 07:43:29,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:43:29,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 07:43:29,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:43:29,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 07:43:29,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 07:43:29,835 INFO L87 Difference]: Start difference. First operand 241 states and 318 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 07:43:29,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:43:29,937 INFO L93 Difference]: Finished difference Result 233 states and 306 transitions. [2025-03-04 07:43:29,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 07:43:29,937 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2025-03-04 07:43:29,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:43:29,938 INFO L225 Difference]: With dead ends: 233 [2025-03-04 07:43:29,938 INFO L226 Difference]: Without dead ends: 233 [2025-03-04 07:43:29,938 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-04 07:43:29,938 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 2 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 07:43:29,938 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 637 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 07:43:29,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2025-03-04 07:43:29,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2025-03-04 07:43:29,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 184 states have (on average 1.548913043478261) internal successors, (285), 218 states have internal predecessors, (285), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 12 states have call predecessors, (12), 9 states have call successors, (12) [2025-03-04 07:43:29,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 306 transitions. [2025-03-04 07:43:29,942 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 306 transitions. Word has length 28 [2025-03-04 07:43:29,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:43:29,942 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 306 transitions. [2025-03-04 07:43:29,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 07:43:29,943 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 306 transitions. [2025-03-04 07:43:29,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-03-04 07:43:29,943 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:43:29,943 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:43:29,950 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-03-04 07:43:30,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:30,144 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2025-03-04 07:43:30,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:43:30,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1477268532, now seen corresponding path program 1 times [2025-03-04 07:43:30,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:43:30,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [126709123] [2025-03-04 07:43:30,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:43:30,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:30,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:43:30,146 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:43:30,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-03-04 07:43:30,190 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-04 07:43:30,204 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-04 07:43:30,204 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:43:30,204 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:43:30,206 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-03-04 07:43:30,207 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:43:30,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-03-04 07:43:30,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-03-04 07:43:30,343 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2025-03-04 07:43:30,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2025-03-04 07:43:30,370 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2025-03-04 07:43:30,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2025-03-04 07:43:30,482 WARN L873 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (and (= (store |c_old(#length)| |ldv_malloc_#res.base| (select |c_#length| |ldv_malloc_#res.base|)) |c_#length|) (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#res.base|)))) is different from true [2025-03-04 07:43:30,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 07:43:30,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2025-03-04 07:43:30,516 INFO L349 Elim1Store]: treesize reduction 12, result has 42.9 percent of original size [2025-03-04 07:43:30,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22 [2025-03-04 07:43:30,552 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 4 not checked. [2025-03-04 07:43:30,552 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 07:43:34,729 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:43:34,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126709123] [2025-03-04 07:43:34,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126709123] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 07:43:34,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [257807794] [2025-03-04 07:43:34,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:43:34,730 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-03-04 07:43:34,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2025-03-04 07:43:34,731 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-03-04 07:43:34,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2025-03-04 07:43:34,791 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-04 07:43:34,843 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-04 07:43:34,844 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:43:34,844 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:43:34,845 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-03-04 07:43:34,847 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:43:34,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-03-04 07:43:34,857 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-03-04 07:43:34,903 WARN L873 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (and (= (store |c_old(#valid)| |ldv_malloc_#res.base| (select |c_#valid| |ldv_malloc_#res.base|)) |c_#valid|) (= (store |c_old(#length)| |ldv_malloc_#res.base| (select |c_#length| |ldv_malloc_#res.base|)) |c_#length|) (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#res.base|)))) is different from true [2025-03-04 07:43:34,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 07:43:34,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2025-03-04 07:43:34,934 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2025-03-04 07:43:34,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2025-03-04 07:43:34,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 07:43:34,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2025-03-04 07:43:34,988 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-03-04 07:43:34,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-03-04 07:43:35,034 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 6 not checked. [2025-03-04 07:43:35,034 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 07:43:35,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [257807794] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 07:43:35,882 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 07:43:35,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 12 [2025-03-04 07:43:35,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114735097] [2025-03-04 07:43:35,882 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 07:43:35,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 07:43:35,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:43:35,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 07:43:35,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=121, Unknown=3, NotChecked=46, Total=210 [2025-03-04 07:43:35,883 INFO L87 Difference]: Start difference. First operand 233 states and 306 transitions. Second operand has 13 states, 12 states have (on average 2.25) internal successors, (27), 11 states have internal predecessors, (27), 3 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2025-03-04 07:43:36,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:43:36,859 INFO L93 Difference]: Finished difference Result 288 states and 323 transitions. [2025-03-04 07:43:36,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 07:43:36,859 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.25) internal successors, (27), 11 states have internal predecessors, (27), 3 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 30 [2025-03-04 07:43:36,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:43:36,860 INFO L225 Difference]: With dead ends: 288 [2025-03-04 07:43:36,860 INFO L226 Difference]: Without dead ends: 288 [2025-03-04 07:43:36,860 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 64 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=48, Invalid=167, Unknown=3, NotChecked=54, Total=272 [2025-03-04 07:43:36,861 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 149 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 576 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-04 07:43:36,861 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 663 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 736 Invalid, 0 Unknown, 576 Unchecked, 0.9s Time] [2025-03-04 07:43:36,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2025-03-04 07:43:36,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 233. [2025-03-04 07:43:36,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 184 states have (on average 1.5434782608695652) internal successors, (284), 218 states have internal predecessors, (284), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 12 states have call predecessors, (12), 9 states have call successors, (12) [2025-03-04 07:43:36,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 305 transitions. [2025-03-04 07:43:36,865 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 305 transitions. Word has length 30 [2025-03-04 07:43:36,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:43:36,865 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 305 transitions. [2025-03-04 07:43:36,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.25) internal successors, (27), 11 states have internal predecessors, (27), 3 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2025-03-04 07:43:36,865 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 305 transitions. [2025-03-04 07:43:36,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-03-04 07:43:36,866 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:43:36,866 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:43:36,869 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2025-03-04 07:43:37,072 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-03-04 07:43:37,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:37,267 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2025-03-04 07:43:37,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:43:37,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1446248726, now seen corresponding path program 1 times [2025-03-04 07:43:37,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:43:37,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1700977311] [2025-03-04 07:43:37,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:43:37,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:37,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:43:37,269 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:43:37,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-03-04 07:43:37,324 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-04 07:43:37,334 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-04 07:43:37,334 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:43:37,334 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:43:37,334 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 07:43:37,335 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:43:37,358 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 07:43:37,358 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:43:37,358 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:43:37,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700977311] [2025-03-04 07:43:37,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700977311] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:43:37,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:43:37,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 07:43:37,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161129270] [2025-03-04 07:43:37,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:43:37,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 07:43:37,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:43:37,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 07:43:37,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 07:43:37,359 INFO L87 Difference]: Start difference. First operand 233 states and 305 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 07:43:37,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:43:37,379 INFO L93 Difference]: Finished difference Result 143 states and 162 transitions. [2025-03-04 07:43:37,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 07:43:37,380 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2025-03-04 07:43:37,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:43:37,380 INFO L225 Difference]: With dead ends: 143 [2025-03-04 07:43:37,380 INFO L226 Difference]: Without dead ends: 141 [2025-03-04 07:43:37,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 07:43:37,381 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 0 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 07:43:37,381 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 514 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 07:43:37,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2025-03-04 07:43:37,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2025-03-04 07:43:37,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 98 states have (on average 1.5204081632653061) internal successors, (149), 132 states have internal predecessors, (149), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-04 07:43:37,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 160 transitions. [2025-03-04 07:43:37,383 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 160 transitions. Word has length 30 [2025-03-04 07:43:37,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:43:37,383 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 160 transitions. [2025-03-04 07:43:37,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 07:43:37,383 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 160 transitions. [2025-03-04 07:43:37,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2025-03-04 07:43:37,384 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:43:37,384 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:43:37,391 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2025-03-04 07:43:37,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:37,585 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2025-03-04 07:43:37,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:43:37,586 INFO L85 PathProgramCache]: Analyzing trace with hash 894103424, now seen corresponding path program 1 times [2025-03-04 07:43:37,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:43:37,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1291549749] [2025-03-04 07:43:37,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:43:37,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:37,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:43:37,588 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:43:37,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-03-04 07:43:37,640 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-04 07:43:37,650 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-04 07:43:37,650 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:43:37,650 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:43:37,651 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-04 07:43:37,653 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:43:37,655 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-03-04 07:43:37,716 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2025-03-04 07:43:37,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2025-03-04 07:43:37,785 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 16 treesize of output 13 [2025-03-04 07:43:37,792 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 07:43:37,792 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 07:43:38,064 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 07:43:38,064 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:43:38,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291549749] [2025-03-04 07:43:38,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291549749] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 07:43:38,064 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 07:43:38,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2025-03-04 07:43:38,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233863361] [2025-03-04 07:43:38,064 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 07:43:38,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-04 07:43:38,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:43:38,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-04 07:43:38,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2025-03-04 07:43:38,065 INFO L87 Difference]: Start difference. First operand 141 states and 160 transitions. Second operand has 11 states, 10 states have (on average 2.9) internal successors, (29), 9 states have internal predecessors, (29), 3 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-03-04 07:43:38,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:43:38,527 INFO L93 Difference]: Finished difference Result 168 states and 181 transitions. [2025-03-04 07:43:38,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 07:43:38,528 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.9) internal successors, (29), 9 states have internal predecessors, (29), 3 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 31 [2025-03-04 07:43:38,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:43:38,528 INFO L225 Difference]: With dead ends: 168 [2025-03-04 07:43:38,528 INFO L226 Difference]: Without dead ends: 168 [2025-03-04 07:43:38,529 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 48 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2025-03-04 07:43:38,529 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 97 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 07:43:38,529 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 548 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 07:43:38,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2025-03-04 07:43:38,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 144. [2025-03-04 07:43:38,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 101 states have (on average 1.504950495049505) internal successors, (152), 135 states have internal predecessors, (152), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-04 07:43:38,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 163 transitions. [2025-03-04 07:43:38,532 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 163 transitions. Word has length 31 [2025-03-04 07:43:38,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:43:38,532 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 163 transitions. [2025-03-04 07:43:38,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.9) internal successors, (29), 9 states have internal predecessors, (29), 3 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-03-04 07:43:38,532 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 163 transitions. [2025-03-04 07:43:38,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2025-03-04 07:43:38,532 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:43:38,532 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:43:38,539 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-03-04 07:43:38,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:38,733 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr36REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2025-03-04 07:43:38,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:43:38,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1979118280, now seen corresponding path program 1 times [2025-03-04 07:43:38,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:43:38,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1609045299] [2025-03-04 07:43:38,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:43:38,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:38,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:43:38,736 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:43:38,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-03-04 07:43:38,793 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-04 07:43:38,807 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-04 07:43:38,807 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:43:38,807 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:43:38,809 INFO L256 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 07:43:38,810 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:43:38,821 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-04 07:43:38,821 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:43:38,822 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:43:38,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609045299] [2025-03-04 07:43:38,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609045299] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:43:38,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:43:38,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 07:43:38,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446631420] [2025-03-04 07:43:38,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:43:38,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 07:43:38,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:43:38,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 07:43:38,823 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 07:43:38,823 INFO L87 Difference]: Start difference. First operand 144 states and 163 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 07:43:38,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:43:38,956 INFO L93 Difference]: Finished difference Result 167 states and 180 transitions. [2025-03-04 07:43:38,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 07:43:38,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 32 [2025-03-04 07:43:38,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:43:38,957 INFO L225 Difference]: With dead ends: 167 [2025-03-04 07:43:38,957 INFO L226 Difference]: Without dead ends: 167 [2025-03-04 07:43:38,957 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 07:43:38,958 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 116 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 07:43:38,958 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 200 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 07:43:38,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2025-03-04 07:43:38,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 143. [2025-03-04 07:43:38,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 101 states have (on average 1.495049504950495) internal successors, (151), 134 states have internal predecessors, (151), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-04 07:43:38,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 162 transitions. [2025-03-04 07:43:38,966 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 162 transitions. Word has length 32 [2025-03-04 07:43:38,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:43:38,966 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 162 transitions. [2025-03-04 07:43:38,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 07:43:38,966 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 162 transitions. [2025-03-04 07:43:38,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2025-03-04 07:43:38,966 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:43:38,966 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:43:38,973 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2025-03-04 07:43:39,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:39,171 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr37REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2025-03-04 07:43:39,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:43:39,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1979118281, now seen corresponding path program 1 times [2025-03-04 07:43:39,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:43:39,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [125410781] [2025-03-04 07:43:39,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:43:39,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:39,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:43:39,174 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:43:39,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-03-04 07:43:39,228 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-04 07:43:39,244 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-04 07:43:39,244 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:43:39,244 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:43:39,246 INFO L256 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-04 07:43:39,247 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:43:39,300 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-04 07:43:39,301 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 07:43:39,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 6 [2025-03-04 07:43:39,479 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-04 07:43:39,479 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:43:39,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125410781] [2025-03-04 07:43:39,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [125410781] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 07:43:39,480 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 07:43:39,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2025-03-04 07:43:39,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517806840] [2025-03-04 07:43:39,480 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 07:43:39,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 07:43:39,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:43:39,480 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 07:43:39,480 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2025-03-04 07:43:39,480 INFO L87 Difference]: Start difference. First operand 143 states and 162 transitions. Second operand has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 10 states have internal predecessors, (39), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-04 07:43:39,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:43:39,854 INFO L93 Difference]: Finished difference Result 142 states and 161 transitions. [2025-03-04 07:43:39,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 07:43:39,854 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 10 states have internal predecessors, (39), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 32 [2025-03-04 07:43:39,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:43:39,855 INFO L225 Difference]: With dead ends: 142 [2025-03-04 07:43:39,855 INFO L226 Difference]: Without dead ends: 142 [2025-03-04 07:43:39,855 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2025-03-04 07:43:39,855 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 128 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 07:43:39,855 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 589 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 07:43:39,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2025-03-04 07:43:39,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2025-03-04 07:43:39,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 101 states have (on average 1.4851485148514851) internal successors, (150), 133 states have internal predecessors, (150), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-04 07:43:39,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 161 transitions. [2025-03-04 07:43:39,858 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 161 transitions. Word has length 32 [2025-03-04 07:43:39,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:43:39,858 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 161 transitions. [2025-03-04 07:43:39,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 10 states have internal predecessors, (39), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-04 07:43:39,858 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 161 transitions. [2025-03-04 07:43:39,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-03-04 07:43:39,858 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:43:39,858 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-03-04 07:43:39,865 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2025-03-04 07:43:40,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:40,059 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2025-03-04 07:43:40,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:43:40,059 INFO L85 PathProgramCache]: Analyzing trace with hash 239930718, now seen corresponding path program 1 times [2025-03-04 07:43:40,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:43:40,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1211777015] [2025-03-04 07:43:40,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:43:40,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:43:40,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:43:40,061 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:43:40,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-03-04 07:43:40,110 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-04 07:43:40,120 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 07:43:40,120 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:43:40,120 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:43:40,121 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-03-04 07:43:40,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:43:44,444 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-04 07:43:44,444 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 07:43:44,534 INFO L349 Elim1Store]: treesize reduction 86, result has 8.5 percent of original size [2025-03-04 07:43:44,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 168 treesize of output 154 [2025-03-04 07:43:52,720 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:43:52,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211777015] [2025-03-04 07:43:52,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211777015] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 07:43:52,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1654222999] [2025-03-04 07:43:52,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:43:52,720 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-03-04 07:43:52,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2025-03-04 07:43:52,723 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-03-04 07:43:52,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2025-03-04 07:43:52,802 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-04 07:43:52,841 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 07:43:52,841 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:43:52,841 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:43:52,846 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-03-04 07:43:52,848 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:44:07,558 WARN L873 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_entry_point_~hdev~0#1.base_30| (_ BitVec 32)) (|v_ULTIMATE.start_entry_point_~intf~2#1.base_40| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_entry_point_~intf~2#1.base_40|)) (= (_ bv0 1) (bvadd (_ bv1 1) (select (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_entry_point_~hdev~0#1.base_30| (_ bv1 1)) |v_ULTIMATE.start_entry_point_~intf~2#1.base_40| (_ bv0 1)) |v_ULTIMATE.start_entry_point_~hdev~0#1.base_30|))) (not (= |v_ULTIMATE.start_entry_point_~hdev~0#1.base_30| (_ bv0 32))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_entry_point_~hdev~0#1.base_30|)) (= |c_#valid| (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_entry_point_~intf~2#1.base_40| (_ bv0 1)) |v_ULTIMATE.start_entry_point_~hdev~0#1.base_30| (_ bv0 1))))) (= (select |c_ULTIMATE.start_main_old_#valid#1| (_ bv0 32)) (_ bv0 1))) is different from true [2025-03-04 07:44:07,575 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-04 07:44:07,576 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 07:44:15,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 15 treesize of output 13 [2025-03-04 07:44:27,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1654222999] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 07:44:27,609 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 07:44:27,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 20 [2025-03-04 07:44:27,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304823237] [2025-03-04 07:44:27,610 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 07:44:27,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-03-04 07:44:27,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:44:27,610 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-03-04 07:44:27,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=635, Unknown=12, NotChecked=52, Total=812 [2025-03-04 07:44:27,611 INFO L87 Difference]: Start difference. First operand 142 states and 161 transitions. Second operand has 21 states, 17 states have (on average 2.411764705882353) internal successors, (41), 17 states have internal predecessors, (41), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-04 07:44:33,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:44:33,420 INFO L93 Difference]: Finished difference Result 144 states and 162 transitions. [2025-03-04 07:44:33,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-04 07:44:33,421 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 17 states have (on average 2.411764705882353) internal successors, (41), 17 states have internal predecessors, (41), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 33 [2025-03-04 07:44:33,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:44:33,422 INFO L225 Difference]: With dead ends: 144 [2025-03-04 07:44:33,422 INFO L226 Difference]: Without dead ends: 130 [2025-03-04 07:44:33,423 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 74 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 50.7s TimeCoverageRelationStatistics Valid=179, Invalid=1144, Unknown=13, NotChecked=70, Total=1406 [2025-03-04 07:44:33,425 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 119 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 19 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 1120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 138 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-03-04 07:44:33,425 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 943 Invalid, 1120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 952 Invalid, 11 Unknown, 138 Unchecked, 1.5s Time] [2025-03-04 07:44:33,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2025-03-04 07:44:33,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2025-03-04 07:44:33,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 90 states have (on average 1.5333333333333334) internal successors, (138), 122 states have internal predecessors, (138), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-04 07:44:33,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 148 transitions. [2025-03-04 07:44:33,430 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 148 transitions. Word has length 33 [2025-03-04 07:44:33,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:44:33,430 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 148 transitions. [2025-03-04 07:44:33,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 17 states have (on average 2.411764705882353) internal successors, (41), 17 states have internal predecessors, (41), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-04 07:44:33,430 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 148 transitions. [2025-03-04 07:44:33,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2025-03-04 07:44:33,430 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:44:33,430 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:44:33,442 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2025-03-04 07:44:33,636 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2025-03-04 07:44:33,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2025-03-04 07:44:33,834 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2025-03-04 07:44:33,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:44:33,834 INFO L85 PathProgramCache]: Analyzing trace with hash -737841659, now seen corresponding path program 1 times [2025-03-04 07:44:33,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:44:33,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1631860049] [2025-03-04 07:44:33,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:44:33,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:44:33,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:44:33,836 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:44:33,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2025-03-04 07:44:33,892 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-04 07:44:33,906 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-04 07:44:33,907 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:44:33,907 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:44:33,908 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-03-04 07:44:33,910 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:44:33,975 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 15 treesize of output 1 [2025-03-04 07:44:34,003 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 19 treesize of output 11 [2025-03-04 07:44:34,022 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-04 07:44:34,022 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 07:44:34,098 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-04 07:44:34,098 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:44:34,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631860049] [2025-03-04 07:44:34,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1631860049] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-04 07:44:34,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 07:44:34,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 12 [2025-03-04 07:44:34,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687965988] [2025-03-04 07:44:34,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:44:34,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 07:44:34,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:44:34,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 07:44:34,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-03-04 07:44:34,099 INFO L87 Difference]: Start difference. First operand 130 states and 148 transitions. Second operand has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 07:44:34,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:44:34,558 INFO L93 Difference]: Finished difference Result 184 states and 199 transitions. [2025-03-04 07:44:34,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 07:44:34,559 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 34 [2025-03-04 07:44:34,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:44:34,560 INFO L225 Difference]: With dead ends: 184 [2025-03-04 07:44:34,560 INFO L226 Difference]: Without dead ends: 184 [2025-03-04 07:44:34,560 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2025-03-04 07:44:34,560 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 182 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 07:44:34,560 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 409 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 07:44:34,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2025-03-04 07:44:34,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 129. [2025-03-04 07:44:34,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 90 states have (on average 1.5222222222222221) internal successors, (137), 121 states have internal predecessors, (137), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-04 07:44:34,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 147 transitions. [2025-03-04 07:44:34,562 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 147 transitions. Word has length 34 [2025-03-04 07:44:34,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:44:34,562 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 147 transitions. [2025-03-04 07:44:34,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 07:44:34,562 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 147 transitions. [2025-03-04 07:44:34,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2025-03-04 07:44:34,563 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:44:34,563 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:44:34,570 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2025-03-04 07:44:34,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:44:34,763 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr35REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2025-03-04 07:44:34,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:44:34,763 INFO L85 PathProgramCache]: Analyzing trace with hash -737841658, now seen corresponding path program 1 times [2025-03-04 07:44:34,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:44:34,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1817529104] [2025-03-04 07:44:34,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:44:34,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:44:34,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:44:34,765 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:44:34,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2025-03-04 07:44:34,820 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-04 07:44:34,835 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-04 07:44:34,835 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:44:34,835 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:44:34,837 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-03-04 07:44:34,839 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:44:34,947 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 15 treesize of output 1 [2025-03-04 07:44:34,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-03-04 07:44:35,000 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 17 treesize of output 9 [2025-03-04 07:44:35,033 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-04 07:44:35,034 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 07:44:35,311 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 6 [2025-03-04 07:44:35,452 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-04 07:44:35,452 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:44:35,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817529104] [2025-03-04 07:44:35,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1817529104] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 07:44:35,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 07:44:35,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 19 [2025-03-04 07:44:35,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139280034] [2025-03-04 07:44:35,452 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 07:44:35,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-03-04 07:44:35,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:44:35,453 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-03-04 07:44:35,453 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2025-03-04 07:44:35,453 INFO L87 Difference]: Start difference. First operand 129 states and 147 transitions. Second operand has 20 states, 19 states have (on average 2.263157894736842) internal successors, (43), 17 states have internal predecessors, (43), 4 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2025-03-04 07:44:36,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:44:36,627 INFO L93 Difference]: Finished difference Result 174 states and 195 transitions. [2025-03-04 07:44:36,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-04 07:44:36,628 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.263157894736842) internal successors, (43), 17 states have internal predecessors, (43), 4 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 34 [2025-03-04 07:44:36,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:44:36,629 INFO L225 Difference]: With dead ends: 174 [2025-03-04 07:44:36,629 INFO L226 Difference]: Without dead ends: 174 [2025-03-04 07:44:36,629 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=114, Invalid=486, Unknown=0, NotChecked=0, Total=600 [2025-03-04 07:44:36,629 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 495 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-04 07:44:36,629 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 950 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-04 07:44:36,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2025-03-04 07:44:36,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 128. [2025-03-04 07:44:36,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 90 states have (on average 1.511111111111111) internal successors, (136), 120 states have internal predecessors, (136), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-04 07:44:36,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 146 transitions. [2025-03-04 07:44:36,631 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 146 transitions. Word has length 34 [2025-03-04 07:44:36,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:44:36,631 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 146 transitions. [2025-03-04 07:44:36,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.263157894736842) internal successors, (43), 17 states have internal predecessors, (43), 4 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2025-03-04 07:44:36,632 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 146 transitions. [2025-03-04 07:44:36,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2025-03-04 07:44:36,632 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:44:36,632 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:44:36,638 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2025-03-04 07:44:36,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:44:36,832 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2025-03-04 07:44:36,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:44:36,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1398254849, now seen corresponding path program 1 times [2025-03-04 07:44:36,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:44:36,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1249337923] [2025-03-04 07:44:36,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:44:36,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:44:36,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:44:36,835 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:44:36,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2025-03-04 07:44:36,890 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-04 07:44:36,910 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-04 07:44:36,910 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:44:36,910 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:44:36,913 INFO L256 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 45 conjuncts are in the unsatisfiable core [2025-03-04 07:44:36,915 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:44:36,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-03-04 07:44:37,018 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2025-03-04 07:44:37,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2025-03-04 07:44:37,143 INFO L349 Elim1Store]: treesize reduction 44, result has 34.3 percent of original size [2025-03-04 07:44:37,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 43 [2025-03-04 07:44:37,209 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-04 07:44:37,526 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2025-03-04 07:44:37,527 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 41 [2025-03-04 07:44:37,586 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-03-04 07:44:37,595 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 59 treesize of output 31 [2025-03-04 07:44:37,769 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 7 treesize of output 3 [2025-03-04 07:44:38,006 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-04 07:44:38,006 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 33 [2025-03-04 07:44:38,079 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 07:44:38,079 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 07:44:38,360 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_388 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_entry_point_#t~mem63#1.base| v_ArrVal_388))) (store .cse0 |c_ULTIMATE.start_entry_point_~hdev~0#1.base| (store (select .cse0 |c_ULTIMATE.start_entry_point_~hdev~0#1.base|) (bvadd |c_ULTIMATE.start_entry_point_~hdev~0#1.offset| (_ bv8 32)) |c_ULTIMATE.start_entry_point_~intf~2#1.base|))) |c_ULTIMATE.start_entry_point_~intf~2#1.base|) (bvadd (_ bv4 32) |c_ULTIMATE.start_entry_point_~intf~2#1.offset|)))))) is different from false [2025-03-04 07:44:38,382 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_388 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv4 32) |c_ULTIMATE.start_entry_point_~intf~2#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_entry_point_~intf~2#1.base|) .cse1) v_ArrVal_388))) (store .cse0 |c_ULTIMATE.start_entry_point_~hdev~0#1.base| (store (select .cse0 |c_ULTIMATE.start_entry_point_~hdev~0#1.base|) (bvadd |c_ULTIMATE.start_entry_point_~hdev~0#1.offset| (_ bv8 32)) |c_ULTIMATE.start_entry_point_~intf~2#1.base|))) |c_ULTIMATE.start_entry_point_~intf~2#1.base|) .cse1)))))) is different from false [2025-03-04 07:44:38,416 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-04 07:44:38,416 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 40 [2025-03-04 07:44:38,448 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-04 07:44:38,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 296 treesize of output 288 [2025-03-04 07:44:38,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 210 treesize of output 194 [2025-03-04 07:44:38,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 196 treesize of output 180 [2025-03-04 07:44:43,167 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:44:43,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249337923] [2025-03-04 07:44:43,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1249337923] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 07:44:43,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1493703422] [2025-03-04 07:44:43,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:44:43,168 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-03-04 07:44:43,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2025-03-04 07:44:43,169 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-03-04 07:44:43,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2025-03-04 07:44:43,249 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-04 07:44:43,337 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-04 07:44:43,337 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:44:43,337 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:44:43,340 INFO L256 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 48 conjuncts are in the unsatisfiable core [2025-03-04 07:44:43,342 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:44:43,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-03-04 07:44:43,400 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2025-03-04 07:44:43,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2025-03-04 07:44:43,468 INFO L349 Elim1Store]: treesize reduction 44, result has 34.3 percent of original size [2025-03-04 07:44:43,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 43 [2025-03-04 07:44:43,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-04 07:44:43,652 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2025-03-04 07:44:43,652 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 41 [2025-03-04 07:44:43,712 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 59 treesize of output 31 [2025-03-04 07:44:43,731 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-03-04 07:44:43,786 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 7 treesize of output 3 [2025-03-04 07:44:43,836 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-04 07:44:43,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 33 [2025-03-04 07:44:43,880 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 07:44:43,880 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 07:44:44,591 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-04 07:44:44,592 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 40 [2025-03-04 07:44:44,608 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-04 07:44:44,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 392 treesize of output 382 [2025-03-04 07:44:44,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 210 treesize of output 194 [2025-03-04 07:44:44,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 143 treesize of output 131