./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 c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test15-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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-?-c00e63d-m [2025-02-06 10:23:37,321 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 10:23:37,392 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-06 10:23:37,398 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 10:23:37,398 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 10:23:37,429 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 10:23:37,430 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 10:23:37,430 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 10:23:37,431 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 10:23:37,431 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 10:23:37,431 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 10:23:37,431 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 10:23:37,432 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 10:23:37,432 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 10:23:37,433 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 10:23:37,433 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 10:23:37,433 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 10:23:37,433 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 10:23:37,433 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 10:23:37,433 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 10:23:37,434 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 10:23:37,434 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 10:23:37,434 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 10:23:37,434 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 10:23:37,434 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 10:23:37,434 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 10:23:37,435 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 10:23:37,435 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 10:23:37,435 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 10:23:37,435 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 10:23:37,435 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 10:23:37,435 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 10:23:37,435 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 10:23:37,435 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 10:23:37,435 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 10:23:37,435 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 10:23:37,435 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 10:23:37,436 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 10:23:37,436 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 10:23:37,436 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 10:23:37,436 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 10:23:37,436 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 10:23:37,437 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-jdk21/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 [2025-02-06 10:23:37,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 10:23:37,713 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 10:23:37,716 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 10:23:37,717 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 10:23:37,718 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 10:23:37,719 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test15-2.i [2025-02-06 10:23:39,009 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cef615523/e29c76882cbb4f34873e9dcbe36f0ee8/FLAG62778b819 [2025-02-06 10:23:39,339 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 10:23:39,340 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test15-2.i [2025-02-06 10:23:39,352 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cef615523/e29c76882cbb4f34873e9dcbe36f0ee8/FLAG62778b819 [2025-02-06 10:23:39,592 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cef615523/e29c76882cbb4f34873e9dcbe36f0ee8 [2025-02-06 10:23:39,595 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 10:23:39,596 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 10:23:39,597 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 10:23:39,597 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 10:23:39,601 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 10:23:39,601 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 10:23:39" (1/1) ... [2025-02-06 10:23:39,602 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@571fc394 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:23:39, skipping insertion in model container [2025-02-06 10:23:39,602 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 10:23:39" (1/1) ... [2025-02-06 10:23:39,636 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 10:23:39,894 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:23:39,962 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:23:39,968 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:23:39,970 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:23:39,972 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:23:39,974 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 10:23:39,989 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) [2025-02-06 10:23:39,989 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@25a9a535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:23:39, skipping insertion in model container [2025-02-06 10:23:39,989 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 10:23:39,990 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-02-06 10:23:39,991 INFO L158 Benchmark]: Toolchain (without parser) took 394.64ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 91.0MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 10:23:39,991 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 127.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 10:23:39,991 INFO L158 Benchmark]: CACSL2BoogieTranslator took 393.00ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 91.0MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 10:23:39,992 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 127.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 393.00ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 91.0MB in the end (delta: 14.1MB). 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-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test15-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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-?-c00e63d-m [2025-02-06 10:23:42,050 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 10:23:42,177 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-02-06 10:23:42,189 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 10:23:42,190 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 10:23:42,219 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 10:23:42,220 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 10:23:42,220 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 10:23:42,220 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 10:23:42,220 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 10:23:42,221 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 10:23:42,221 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 10:23:42,221 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 10:23:42,222 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 10:23:42,222 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 10:23:42,222 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 10:23:42,222 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 10:23:42,222 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 10:23:42,222 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 10:23:42,223 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 10:23:42,223 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 10:23:42,223 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 10:23:42,223 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 10:23:42,223 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 10:23:42,223 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 10:23:42,223 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-06 10:23:42,223 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-06 10:23:42,224 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 10:23:42,224 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 10:23:42,224 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 10:23:42,224 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 10:23:42,224 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 10:23:42,224 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 10:23:42,224 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 10:23:42,224 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 10:23:42,224 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 10:23:42,224 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 10:23:42,224 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 10:23:42,224 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-06 10:23:42,224 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-06 10:23:42,224 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 10:23:42,225 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 10:23:42,225 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 10:23:42,225 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 10:23:42,225 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-jdk21/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 [2025-02-06 10:23:42,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 10:23:42,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 10:23:42,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 10:23:42,505 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 10:23:42,505 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 10:23:42,506 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test15-2.i [2025-02-06 10:23:43,756 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0deb6a90d/6b6aa06614084377a94a5eea4e2fb5db/FLAG7bc2239b6 [2025-02-06 10:23:44,068 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 10:23:44,069 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test15-2.i [2025-02-06 10:23:44,089 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0deb6a90d/6b6aa06614084377a94a5eea4e2fb5db/FLAG7bc2239b6 [2025-02-06 10:23:44,111 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0deb6a90d/6b6aa06614084377a94a5eea4e2fb5db [2025-02-06 10:23:44,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 10:23:44,115 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 10:23:44,117 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 10:23:44,117 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 10:23:44,121 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 10:23:44,122 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 10:23:44" (1/1) ... [2025-02-06 10:23:44,124 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6985e6e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:23:44, skipping insertion in model container [2025-02-06 10:23:44,124 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 10:23:44" (1/1) ... [2025-02-06 10:23:44,166 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 10:23:44,500 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:23:44,570 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:23:44,583 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:23:44,585 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:23:44,585 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:23:44,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 10:23:44,618 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-02-06 10:23:44,634 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 10:23:44,677 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:23:44,713 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:23:44,717 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:23:44,721 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:23:44,723 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:23:44,725 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 10:23:44,731 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 10:23:44,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 10:23:44,836 INFO L204 MainTranslator]: Completed translation [2025-02-06 10:23:44,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:23:44 WrapperNode [2025-02-06 10:23:44,837 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 10:23:44,837 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 10:23:44,837 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 10:23:44,838 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 10:23:44,842 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:23:44" (1/1) ... [2025-02-06 10:23:44,871 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:23:44" (1/1) ... [2025-02-06 10:23:44,900 INFO L138 Inliner]: procedures = 176, calls = 104, calls flagged for inlining = 31, calls inlined = 14, statements flattened = 185 [2025-02-06 10:23:44,903 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 10:23:44,904 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 10:23:44,904 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 10:23:44,904 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 10:23:44,912 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:23:44" (1/1) ... [2025-02-06 10:23:44,912 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:23:44" (1/1) ... [2025-02-06 10:23:44,918 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:23:44" (1/1) ... [2025-02-06 10:23:44,960 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]. [2025-02-06 10:23:44,960 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:23:44" (1/1) ... [2025-02-06 10:23:44,960 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:23:44" (1/1) ... [2025-02-06 10:23:44,980 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:23:44" (1/1) ... [2025-02-06 10:23:44,981 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:23:44" (1/1) ... [2025-02-06 10:23:44,982 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:23:44" (1/1) ... [2025-02-06 10:23:44,987 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:23:44" (1/1) ... [2025-02-06 10:23:44,994 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 10:23:44,995 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 10:23:44,995 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 10:23:44,995 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 10:23:44,996 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:23:44" (1/1) ... [2025-02-06 10:23:45,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 10:23:45,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:23:45,037 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 10:23:45,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 10:23:45,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-02-06 10:23:45,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-02-06 10:23:45,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2025-02-06 10:23:45,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2025-02-06 10:23:45,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 10:23:45,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 10:23:45,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 10:23:45,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 10:23:45,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_hid_set_drvdata [2025-02-06 10:23:45,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_hid_set_drvdata [2025-02-06 10:23:45,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 10:23:45,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 10:23:45,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2025-02-06 10:23:45,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2025-02-06 10:23:45,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-06 10:23:45,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-06 10:23:45,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 10:23:45,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 10:23:45,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 10:23:45,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 10:23:45,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 10:23:45,232 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 10:23:45,234 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 10:23:45,265 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L527: havoc #t~malloc12.base, #t~malloc12.offset; [2025-02-06 10:23:45,720 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L762: havoc ldv_hid_get_drvdata_#t~ret42#1.base, ldv_hid_get_drvdata_#t~ret42#1.offset; [2025-02-06 10:23:45,720 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L533: havoc ldv_zalloc_#t~malloc13#1.base, ldv_zalloc_#t~malloc13#1.offset; [2025-02-06 10:23:45,720 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L775: havoc ldv_arvo_init_arvo_device_struct_#t~ret46#1; [2025-02-06 10:23:45,720 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L619: havoc ldv_dev_get_drvdata_#t~mem29#1.base, ldv_dev_get_drvdata_#t~mem29#1.offset; [2025-02-06 10:23:45,764 INFO L? ?]: Removed 162 outVars from TransFormulas that were not future-live. [2025-02-06 10:23:45,764 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 10:23:45,780 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 10:23:45,781 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 10:23:45,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 10:23:45 BoogieIcfgContainer [2025-02-06 10:23:45,781 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 10:23:45,783 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 10:23:45,783 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 10:23:45,786 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 10:23:45,788 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 10:23:44" (1/3) ... [2025-02-06 10:23:45,788 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58acebe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 10:23:45, skipping insertion in model container [2025-02-06 10:23:45,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:23:44" (2/3) ... [2025-02-06 10:23:45,789 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58acebe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 10:23:45, skipping insertion in model container [2025-02-06 10:23:45,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 10:23:45" (3/3) ... [2025-02-06 10:23:45,790 INFO L128 eAbstractionObserver]: Analyzing ICFG memleaks_test15-2.i [2025-02-06 10:23:45,805 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 10:23:45,806 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. [2025-02-06 10:23:45,850 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 10:23:45,861 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;@1dfa32b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 10:23:45,861 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2025-02-06 10:23:45,866 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) [2025-02-06 10:23:45,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-02-06 10:23:45,872 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:23:45,873 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 10:23:45,873 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)] === [2025-02-06 10:23:45,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:23:45,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1607513928, now seen corresponding path program 1 times [2025-02-06 10:23:45,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:23:45,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1127996393] [2025-02-06 10:23:45,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:23:45,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:23:45,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:23:45,895 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:23:45,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 10:23:45,995 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 10:23:46,005 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 10:23:46,006 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:23:46,007 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:23:46,008 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 10:23:46,012 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:23:46,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 10:23:46,080 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 10:23:46,081 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:23:46,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127996393] [2025-02-06 10:23:46,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127996393] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 10:23:46,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 10:23:46,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 10:23:46,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712916344] [2025-02-06 10:23:46,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 10:23:46,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 10:23:46,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:23:46,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 10:23:46,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 10:23:46,111 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) [2025-02-06 10:23:46,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:23:46,233 INFO L93 Difference]: Finished difference Result 251 states and 285 transitions. [2025-02-06 10:23:46,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 10:23:46,235 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 [2025-02-06 10:23:46,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:23:46,244 INFO L225 Difference]: With dead ends: 251 [2025-02-06 10:23:46,245 INFO L226 Difference]: Without dead ends: 249 [2025-02-06 10:23:46,247 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 [2025-02-06 10:23:46,250 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 116 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2025-02-06 10:23:46,252 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] [2025-02-06 10:23:46,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2025-02-06 10:23:46,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 138. [2025-02-06 10:23:46,290 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) [2025-02-06 10:23:46,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 153 transitions. [2025-02-06 10:23:46,295 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 153 transitions. Word has length 11 [2025-02-06 10:23:46,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:23:46,295 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 153 transitions. [2025-02-06 10:23:46,295 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) [2025-02-06 10:23:46,296 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 153 transitions. [2025-02-06 10:23:46,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-02-06 10:23:46,296 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:23:46,297 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 10:23:46,305 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 10:23:46,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:23:46,497 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)] === [2025-02-06 10:23:46,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:23:46,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1799949687, now seen corresponding path program 1 times [2025-02-06 10:23:46,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:23:46,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2081166182] [2025-02-06 10:23:46,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:23:46,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:23:46,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:23:46,502 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:23:46,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 10:23:46,567 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 10:23:46,573 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 10:23:46,573 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:23:46,573 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:23:46,574 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 10:23:46,575 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:23:46,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 10:23:46,608 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 10:23:46,609 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:23:46,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081166182] [2025-02-06 10:23:46,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2081166182] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 10:23:46,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 10:23:46,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 10:23:46,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237516534] [2025-02-06 10:23:46,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 10:23:46,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 10:23:46,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:23:46,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 10:23:46,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 10:23:46,611 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) [2025-02-06 10:23:46,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:23:46,992 INFO L93 Difference]: Finished difference Result 228 states and 253 transitions. [2025-02-06 10:23:46,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 10:23:46,993 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 [2025-02-06 10:23:46,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:23:46,996 INFO L225 Difference]: With dead ends: 228 [2025-02-06 10:23:46,996 INFO L226 Difference]: Without dead ends: 226 [2025-02-06 10:23:46,996 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 [2025-02-06 10:23:46,997 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 93 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 10:23:46,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 437 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 10:23:46,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2025-02-06 10:23:47,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 134. [2025-02-06 10:23:47,011 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) [2025-02-06 10:23:47,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 146 transitions. [2025-02-06 10:23:47,015 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 146 transitions. Word has length 11 [2025-02-06 10:23:47,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:23:47,016 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 146 transitions. [2025-02-06 10:23:47,016 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) [2025-02-06 10:23:47,016 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 146 transitions. [2025-02-06 10:23:47,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-02-06 10:23:47,017 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:23:47,017 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 10:23:47,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-06 10:23:47,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:23:47,218 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)] === [2025-02-06 10:23:47,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:23:47,218 INFO L85 PathProgramCache]: Analyzing trace with hash 117572569, now seen corresponding path program 1 times [2025-02-06 10:23:47,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:23:47,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1056087027] [2025-02-06 10:23:47,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:23:47,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:23:47,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:23:47,221 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:23:47,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 10:23:47,283 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 10:23:47,293 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 10:23:47,293 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:23:47,294 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:23:47,296 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 10:23:47,297 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:23:47,341 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 10:23:47,341 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 10:23:47,382 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 10:23:47,383 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:23:47,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056087027] [2025-02-06 10:23:47,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1056087027] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 10:23:47,383 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 10:23:47,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2025-02-06 10:23:47,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721563103] [2025-02-06 10:23:47,384 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 10:23:47,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 10:23:47,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:23:47,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 10:23:47,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 10:23:47,385 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) [2025-02-06 10:23:47,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:23:47,427 INFO L93 Difference]: Finished difference Result 133 states and 145 transitions. [2025-02-06 10:23:47,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 10:23:47,428 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 [2025-02-06 10:23:47,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:23:47,429 INFO L225 Difference]: With dead ends: 133 [2025-02-06 10:23:47,429 INFO L226 Difference]: Without dead ends: 133 [2025-02-06 10:23:47,429 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 [2025-02-06 10:23:47,430 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 [2025-02-06 10:23:47,430 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] [2025-02-06 10:23:47,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2025-02-06 10:23:47,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2025-02-06 10:23:47,436 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) [2025-02-06 10:23:47,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 145 transitions. [2025-02-06 10:23:47,437 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 145 transitions. Word has length 17 [2025-02-06 10:23:47,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:23:47,437 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 145 transitions. [2025-02-06 10:23:47,437 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) [2025-02-06 10:23:47,437 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 145 transitions. [2025-02-06 10:23:47,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-02-06 10:23:47,437 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:23:47,437 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 10:23:47,445 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 10:23:47,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:23:47,638 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)] === [2025-02-06 10:23:47,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:23:47,639 INFO L85 PathProgramCache]: Analyzing trace with hash -650217670, now seen corresponding path program 1 times [2025-02-06 10:23:47,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:23:47,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1064224995] [2025-02-06 10:23:47,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:23:47,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:23:47,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:23:47,641 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:23:47,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 10:23:47,701 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-06 10:23:47,710 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-06 10:23:47,710 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:23:47,710 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:23:47,711 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 10:23:47,712 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:23:47,737 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 10:23:47,737 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 10:23:47,737 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:23:47,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064224995] [2025-02-06 10:23:47,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1064224995] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 10:23:47,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 10:23:47,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 10:23:47,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247666428] [2025-02-06 10:23:47,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 10:23:47,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 10:23:47,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:23:47,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 10:23:47,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 10:23:47,739 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) [2025-02-06 10:23:47,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:23:47,851 INFO L93 Difference]: Finished difference Result 233 states and 269 transitions. [2025-02-06 10:23:47,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 10:23:47,852 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 [2025-02-06 10:23:47,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:23:47,853 INFO L225 Difference]: With dead ends: 233 [2025-02-06 10:23:47,853 INFO L226 Difference]: Without dead ends: 233 [2025-02-06 10:23:47,854 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 [2025-02-06 10:23:47,854 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 [2025-02-06 10:23:47,855 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] [2025-02-06 10:23:47,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2025-02-06 10:23:47,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 137. [2025-02-06 10:23:47,865 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) [2025-02-06 10:23:47,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 151 transitions. [2025-02-06 10:23:47,870 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 151 transitions. Word has length 18 [2025-02-06 10:23:47,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:23:47,870 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 151 transitions. [2025-02-06 10:23:47,871 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) [2025-02-06 10:23:47,871 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 151 transitions. [2025-02-06 10:23:47,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-02-06 10:23:47,871 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:23:47,871 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 10:23:47,880 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 10:23:48,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:23:48,072 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)] === [2025-02-06 10:23:48,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:23:48,072 INFO L85 PathProgramCache]: Analyzing trace with hash 237286011, now seen corresponding path program 1 times [2025-02-06 10:23:48,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:23:48,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [183109002] [2025-02-06 10:23:48,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:23:48,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:23:48,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:23:48,076 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:23:48,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 10:23:48,133 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-06 10:23:48,146 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-06 10:23:48,146 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:23:48,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:23:48,147 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 10:23:48,151 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:23:48,220 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 10:23:48,221 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 10:23:48,271 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 10:23:48,271 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:23:48,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183109002] [2025-02-06 10:23:48,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183109002] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 10:23:48,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 10:23:48,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 5 [2025-02-06 10:23:48,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340138655] [2025-02-06 10:23:48,271 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 10:23:48,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 10:23:48,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:23:48,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 10:23:48,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-06 10:23:48,272 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) [2025-02-06 10:23:48,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:23:48,442 INFO L93 Difference]: Finished difference Result 136 states and 150 transitions. [2025-02-06 10:23:48,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 10:23:48,443 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 [2025-02-06 10:23:48,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:23:48,445 INFO L225 Difference]: With dead ends: 136 [2025-02-06 10:23:48,445 INFO L226 Difference]: Without dead ends: 136 [2025-02-06 10:23:48,445 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 [2025-02-06 10:23:48,446 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, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 10:23:48,448 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 352 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 10:23:48,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2025-02-06 10:23:48,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2025-02-06 10:23:48,454 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) [2025-02-06 10:23:48,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 150 transitions. [2025-02-06 10:23:48,455 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 150 transitions. Word has length 18 [2025-02-06 10:23:48,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:23:48,455 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 150 transitions. [2025-02-06 10:23:48,455 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) [2025-02-06 10:23:48,455 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 150 transitions. [2025-02-06 10:23:48,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-02-06 10:23:48,456 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:23:48,456 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 10:23:48,466 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-06 10:23:48,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:23:48,657 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)] === [2025-02-06 10:23:48,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:23:48,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1234068266, now seen corresponding path program 1 times [2025-02-06 10:23:48,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:23:48,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1122350905] [2025-02-06 10:23:48,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:23:48,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:23:48,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:23:48,659 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:23:48,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-06 10:23:48,713 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-06 10:23:48,721 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-06 10:23:48,721 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:23:48,721 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:23:48,722 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 10:23:48,723 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:23:48,745 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 [2025-02-06 10:23:48,812 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 10:23:48,812 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 10:23:48,938 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 10:23:48,938 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:23:48,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122350905] [2025-02-06 10:23:48,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122350905] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 10:23:48,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 10:23:48,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2025-02-06 10:23:48,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79162790] [2025-02-06 10:23:48,939 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 10:23:48,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 10:23:48,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:23:48,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 10:23:48,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 10:23:48,941 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) [2025-02-06 10:23:49,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:23:49,515 INFO L93 Difference]: Finished difference Result 209 states and 233 transitions. [2025-02-06 10:23:49,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 10:23:49,516 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 [2025-02-06 10:23:49,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:23:49,517 INFO L225 Difference]: With dead ends: 209 [2025-02-06 10:23:49,517 INFO L226 Difference]: Without dead ends: 209 [2025-02-06 10:23:49,517 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 [2025-02-06 10:23:49,518 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 111 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.5s IncrementalHoareTripleChecker+Time [2025-02-06 10:23:49,518 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 433 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-06 10:23:49,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2025-02-06 10:23:49,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 156. [2025-02-06 10:23:49,530 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) [2025-02-06 10:23:49,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 185 transitions. [2025-02-06 10:23:49,531 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 185 transitions. Word has length 19 [2025-02-06 10:23:49,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:23:49,532 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 185 transitions. [2025-02-06 10:23:49,532 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) [2025-02-06 10:23:49,532 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 185 transitions. [2025-02-06 10:23:49,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-02-06 10:23:49,532 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:23:49,532 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 10:23:49,542 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-06 10:23:49,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:23:49,733 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)] === [2025-02-06 10:23:49,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:23:49,734 INFO L85 PathProgramCache]: Analyzing trace with hash 273483543, now seen corresponding path program 1 times [2025-02-06 10:23:49,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:23:49,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [604496846] [2025-02-06 10:23:49,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:23:49,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:23:49,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:23:49,736 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:23:49,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-06 10:23:49,786 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-06 10:23:49,801 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-06 10:23:49,801 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:23:49,801 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:23:49,802 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 10:23:49,803 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:23:49,836 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 10:23:49,836 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 10:23:49,873 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 10:23:49,873 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:23:49,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604496846] [2025-02-06 10:23:49,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604496846] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 10:23:49,875 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 10:23:49,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2025-02-06 10:23:49,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610311095] [2025-02-06 10:23:49,875 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 10:23:49,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 10:23:49,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:23:49,876 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 10:23:49,876 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 10:23:49,876 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) [2025-02-06 10:23:49,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:23:49,949 INFO L93 Difference]: Finished difference Result 253 states and 283 transitions. [2025-02-06 10:23:49,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 10:23:49,950 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 [2025-02-06 10:23:49,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:23:49,952 INFO L225 Difference]: With dead ends: 253 [2025-02-06 10:23:49,952 INFO L226 Difference]: Without dead ends: 253 [2025-02-06 10:23:49,952 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 [2025-02-06 10:23:49,953 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 [2025-02-06 10:23:49,953 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] [2025-02-06 10:23:49,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2025-02-06 10:23:49,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 208. [2025-02-06 10:23:49,970 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) [2025-02-06 10:23:49,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 280 transitions. [2025-02-06 10:23:49,971 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 280 transitions. Word has length 19 [2025-02-06 10:23:49,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:23:49,972 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 280 transitions. [2025-02-06 10:23:49,972 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) [2025-02-06 10:23:49,972 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 280 transitions. [2025-02-06 10:23:49,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-02-06 10:23:49,972 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:23:49,972 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 10:23:49,980 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-06 10:23:50,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:23:50,173 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)] === [2025-02-06 10:23:50,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:23:50,173 INFO L85 PathProgramCache]: Analyzing trace with hash -517211431, now seen corresponding path program 1 times [2025-02-06 10:23:50,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:23:50,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [515795099] [2025-02-06 10:23:50,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:23:50,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:23:50,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:23:50,176 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:23:50,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-06 10:23:50,229 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 10:23:50,240 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 10:23:50,240 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:23:50,240 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:23:50,242 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-06 10:23:50,244 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:23:50,248 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 [2025-02-06 10:23:50,302 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 [2025-02-06 10:23:50,344 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2025-02-06 10:23:50,344 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 [2025-02-06 10:23:50,352 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 2 not checked. [2025-02-06 10:23:50,352 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 10:23:54,542 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 10:23:54,542 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:23:54,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515795099] [2025-02-06 10:23:54,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515795099] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 10:23:54,543 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 10:23:54,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2025-02-06 10:23:54,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890132784] [2025-02-06 10:23:54,543 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 10:23:54,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 10:23:54,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:23:54,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 10:23:54,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=40, Unknown=2, NotChecked=12, Total=72 [2025-02-06 10:23:54,544 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) [2025-02-06 10:23:55,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:23:55,108 INFO L93 Difference]: Finished difference Result 268 states and 366 transitions. [2025-02-06 10:23:55,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 10:23:55,110 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 [2025-02-06 10:23:55,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:23:55,111 INFO L225 Difference]: With dead ends: 268 [2025-02-06 10:23:55,111 INFO L226 Difference]: Without dead ends: 268 [2025-02-06 10:23:55,112 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 [2025-02-06 10:23:55,112 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 111 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2025-02-06 10:23:55,112 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 416 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 363 Invalid, 0 Unknown, 191 Unchecked, 0.5s Time] [2025-02-06 10:23:55,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2025-02-06 10:23:55,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 242. [2025-02-06 10:23:55,122 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) [2025-02-06 10:23:55,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 342 transitions. [2025-02-06 10:23:55,124 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 342 transitions. Word has length 22 [2025-02-06 10:23:55,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:23:55,124 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 342 transitions. [2025-02-06 10:23:55,124 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) [2025-02-06 10:23:55,125 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 342 transitions. [2025-02-06 10:23:55,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-02-06 10:23:55,125 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:23:55,125 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 10:23:55,133 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-06 10:23:55,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:23:55,326 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)] === [2025-02-06 10:23:55,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:23:55,327 INFO L85 PathProgramCache]: Analyzing trace with hash -517211430, now seen corresponding path program 1 times [2025-02-06 10:23:55,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:23:55,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [663046406] [2025-02-06 10:23:55,327 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:23:55,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:23:55,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:23:55,329 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:23:55,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-06 10:23:55,386 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 10:23:55,398 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 10:23:55,398 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:23:55,398 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:23:55,400 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-02-06 10:23:55,403 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:23:55,416 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 [2025-02-06 10:23:55,422 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 [2025-02-06 10:23:55,551 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 [2025-02-06 10:23:55,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 10:23:55,576 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 [2025-02-06 10:23:55,585 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-02-06 10:23:55,585 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 [2025-02-06 10:23:55,602 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2025-02-06 10:23:55,603 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 10:23:59,814 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:23:59,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663046406] [2025-02-06 10:23:59,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663046406] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 10:23:59,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1829665316] [2025-02-06 10:23:59,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:23:59,815 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-02-06 10:23:59,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 [2025-02-06 10:23:59,818 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-02-06 10:23:59,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2025-02-06 10:23:59,890 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 10:23:59,932 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 10:23:59,932 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:23:59,932 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:23:59,934 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-02-06 10:23:59,936 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:23:59,950 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 [2025-02-06 10:23:59,958 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 [2025-02-06 10:24:00,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 10:24:00,081 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 [2025-02-06 10:24:00,098 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-02-06 10:24:00,098 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 [2025-02-06 10:24:00,104 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2025-02-06 10:24:00,104 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 10:24:00,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1829665316] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 10:24:00,260 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 10:24:00,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2025-02-06 10:24:00,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322226142] [2025-02-06 10:24:00,260 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 10:24:00,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 10:24:00,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:24:00,261 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 10:24:00,261 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=69, Unknown=2, NotChecked=16, Total=110 [2025-02-06 10:24:00,261 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) [2025-02-06 10:24:01,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:24:01,543 INFO L93 Difference]: Finished difference Result 446 states and 615 transitions. [2025-02-06 10:24:01,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 10:24:01,543 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 [2025-02-06 10:24:01,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:24:01,546 INFO L225 Difference]: With dead ends: 446 [2025-02-06 10:24:01,546 INFO L226 Difference]: Without dead ends: 446 [2025-02-06 10:24:01,546 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=30, Invalid=104, Unknown=2, NotChecked=20, Total=156 [2025-02-06 10:24:01,546 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 138 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.2s IncrementalHoareTripleChecker+Time [2025-02-06 10:24:01,548 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 857 Invalid, 1010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 707 Invalid, 0 Unknown, 288 Unchecked, 1.2s Time] [2025-02-06 10:24:01,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2025-02-06 10:24:01,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 386. [2025-02-06 10:24:01,562 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) [2025-02-06 10:24:01,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 589 transitions. [2025-02-06 10:24:01,564 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 589 transitions. Word has length 22 [2025-02-06 10:24:01,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:24:01,564 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 589 transitions. [2025-02-06 10:24:01,564 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) [2025-02-06 10:24:01,565 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 589 transitions. [2025-02-06 10:24:01,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-02-06 10:24:01,565 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:24:01,566 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 10:24:01,570 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2025-02-06 10:24:01,772 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-02-06 10:24:01,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:24:01,967 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)] === [2025-02-06 10:24:01,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:24:01,967 INFO L85 PathProgramCache]: Analyzing trace with hash -528630476, now seen corresponding path program 1 times [2025-02-06 10:24:01,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:24:01,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1815497274] [2025-02-06 10:24:01,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:24:01,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:24:01,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:24:01,969 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:24:01,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-06 10:24:02,024 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-06 10:24:02,037 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-06 10:24:02,037 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:24:02,037 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:24:02,040 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-02-06 10:24:02,042 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:24:02,205 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 [2025-02-06 10:24:02,214 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 10:24:02,214 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 10:24:02,310 INFO L349 Elim1Store]: treesize reduction 30, result has 21.1 percent of original size [2025-02-06 10:24:02,310 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 [2025-02-06 10:24:02,515 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:24:02,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815497274] [2025-02-06 10:24:02,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815497274] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 10:24:02,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1918034329] [2025-02-06 10:24:02,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:24:02,516 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-02-06 10:24:02,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 [2025-02-06 10:24:02,519 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-02-06 10:24:02,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2025-02-06 10:24:02,589 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-06 10:24:02,618 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-06 10:24:02,618 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:24:02,618 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:24:02,619 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-02-06 10:24:02,621 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:24:02,868 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 10:24:02,868 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 10:24:02,952 INFO L349 Elim1Store]: treesize reduction 30, result has 21.1 percent of original size [2025-02-06 10:24:02,952 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 [2025-02-06 10:24:03,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1918034329] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 10:24:03,095 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 10:24:03,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2025-02-06 10:24:03,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767529951] [2025-02-06 10:24:03,096 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 10:24:03,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 10:24:03,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:24:03,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 10:24:03,097 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=106, Unknown=1, NotChecked=20, Total=156 [2025-02-06 10:24:03,097 INFO L87 Difference]: Start difference. First operand 386 states and 589 transitions. Second operand has 12 states, 10 states have (on average 2.7) internal successors, (27), 10 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) [2025-02-06 10:24:04,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:24:04,139 INFO L93 Difference]: Finished difference Result 488 states and 697 transitions. [2025-02-06 10:24:04,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 10:24:04,139 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 2.7) internal successors, (27), 10 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 [2025-02-06 10:24:04,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:24:04,142 INFO L225 Difference]: With dead ends: 488 [2025-02-06 10:24:04,142 INFO L226 Difference]: Without dead ends: 480 [2025-02-06 10:24:04,142 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 53 SyntacticMatches, 7 SemanticMatches, 18 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=273, Unknown=1, NotChecked=34, Total=380 [2025-02-06 10:24:04,143 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 379 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 267 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-02-06 10:24:04,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 711 Invalid, 880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 583 Invalid, 0 Unknown, 267 Unchecked, 0.9s Time] [2025-02-06 10:24:04,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2025-02-06 10:24:04,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 395. [2025-02-06 10:24:04,158 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) [2025-02-06 10:24:04,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 604 transitions. [2025-02-06 10:24:04,160 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 604 transitions. Word has length 21 [2025-02-06 10:24:04,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:24:04,160 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 604 transitions. [2025-02-06 10:24:04,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 2.7) internal successors, (27), 10 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) [2025-02-06 10:24:04,161 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 604 transitions. [2025-02-06 10:24:04,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-02-06 10:24:04,162 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:24:04,162 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 10:24:04,171 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-02-06 10:24:04,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2025-02-06 10:24:04,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2025-02-06 10:24:04,562 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)] === [2025-02-06 10:24:04,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:24:04,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1980804506, now seen corresponding path program 1 times [2025-02-06 10:24:04,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:24:04,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1575086693] [2025-02-06 10:24:04,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:24:04,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:24:04,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:24:04,565 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:24:04,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-02-06 10:24:04,614 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 10:24:04,623 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 10:24:04,623 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:24:04,623 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:24:04,624 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 10:24:04,625 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:24:04,676 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 10:24:04,677 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 10:24:04,677 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:24:04,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575086693] [2025-02-06 10:24:04,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1575086693] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 10:24:04,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 10:24:04,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 10:24:04,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916464697] [2025-02-06 10:24:04,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 10:24:04,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 10:24:04,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:24:04,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 10:24:04,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 10:24:04,678 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) [2025-02-06 10:24:04,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:24:04,733 INFO L93 Difference]: Finished difference Result 232 states and 312 transitions. [2025-02-06 10:24:04,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 10:24:04,734 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 [2025-02-06 10:24:04,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:24:04,735 INFO L225 Difference]: With dead ends: 232 [2025-02-06 10:24:04,735 INFO L226 Difference]: Without dead ends: 228 [2025-02-06 10:24:04,735 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 [2025-02-06 10:24:04,736 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 [2025-02-06 10:24:04,736 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] [2025-02-06 10:24:04,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2025-02-06 10:24:04,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2025-02-06 10:24:04,744 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) [2025-02-06 10:24:04,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 308 transitions. [2025-02-06 10:24:04,745 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 308 transitions. Word has length 22 [2025-02-06 10:24:04,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:24:04,745 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 308 transitions. [2025-02-06 10:24:04,747 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) [2025-02-06 10:24:04,747 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 308 transitions. [2025-02-06 10:24:04,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2025-02-06 10:24:04,748 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:24:04,748 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] [2025-02-06 10:24:04,757 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-02-06 10:24:04,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:24:04,948 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)] === [2025-02-06 10:24:04,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:24:04,949 INFO L85 PathProgramCache]: Analyzing trace with hash 919749827, now seen corresponding path program 1 times [2025-02-06 10:24:04,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:24:04,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [85976445] [2025-02-06 10:24:04,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:24:04,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:24:04,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:24:04,951 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:24:04,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-02-06 10:24:05,018 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-02-06 10:24:05,031 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-02-06 10:24:05,031 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:24:05,031 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:24:05,032 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 10:24:05,033 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:24:05,062 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 [2025-02-06 10:24:05,082 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 [2025-02-06 10:24:05,094 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-02-06 10:24:05,094 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 10:24:05,094 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:24:05,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85976445] [2025-02-06 10:24:05,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85976445] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 10:24:05,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 10:24:05,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 10:24:05,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824844001] [2025-02-06 10:24:05,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 10:24:05,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 10:24:05,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:24:05,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 10:24:05,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 10:24:05,096 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) [2025-02-06 10:24:05,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:24:05,233 INFO L93 Difference]: Finished difference Result 244 states and 326 transitions. [2025-02-06 10:24:05,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 10:24:05,234 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 [2025-02-06 10:24:05,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:24:05,235 INFO L225 Difference]: With dead ends: 244 [2025-02-06 10:24:05,235 INFO L226 Difference]: Without dead ends: 244 [2025-02-06 10:24:05,235 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 [2025-02-06 10:24:05,236 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 [2025-02-06 10:24:05,237 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] [2025-02-06 10:24:05,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2025-02-06 10:24:05,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 236. [2025-02-06 10:24:05,246 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) [2025-02-06 10:24:05,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 316 transitions. [2025-02-06 10:24:05,247 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 316 transitions. Word has length 27 [2025-02-06 10:24:05,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:24:05,248 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 316 transitions. [2025-02-06 10:24:05,248 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) [2025-02-06 10:24:05,248 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 316 transitions. [2025-02-06 10:24:05,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2025-02-06 10:24:05,250 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:24:05,250 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] [2025-02-06 10:24:05,258 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-02-06 10:24:05,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:24:05,451 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)] === [2025-02-06 10:24:05,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:24:05,452 INFO L85 PathProgramCache]: Analyzing trace with hash -887704636, now seen corresponding path program 1 times [2025-02-06 10:24:05,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:24:05,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [928045022] [2025-02-06 10:24:05,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:24:05,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:24:05,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:24:05,454 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:24:05,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-02-06 10:24:05,507 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-02-06 10:24:05,524 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-02-06 10:24:05,525 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:24:05,525 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:24:05,526 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 10:24:05,527 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:24:05,595 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 10:24:05,595 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 10:24:05,640 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-02-06 10:24:05,641 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:24:05,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928045022] [2025-02-06 10:24:05,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928045022] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 10:24:05,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 10:24:05,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 5 [2025-02-06 10:24:05,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420594594] [2025-02-06 10:24:05,641 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 10:24:05,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 10:24:05,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:24:05,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 10:24:05,642 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-06 10:24:05,642 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) [2025-02-06 10:24:05,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:24:05,827 INFO L93 Difference]: Finished difference Result 235 states and 312 transitions. [2025-02-06 10:24:05,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 10:24:05,828 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 [2025-02-06 10:24:05,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:24:05,829 INFO L225 Difference]: With dead ends: 235 [2025-02-06 10:24:05,829 INFO L226 Difference]: Without dead ends: 235 [2025-02-06 10:24:05,829 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 [2025-02-06 10:24:05,829 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, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 10:24:05,830 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 328 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 10:24:05,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2025-02-06 10:24:05,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2025-02-06 10:24:05,838 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) [2025-02-06 10:24:05,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 312 transitions. [2025-02-06 10:24:05,839 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 312 transitions. Word has length 27 [2025-02-06 10:24:05,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:24:05,839 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 312 transitions. [2025-02-06 10:24:05,840 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) [2025-02-06 10:24:05,840 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 312 transitions. [2025-02-06 10:24:05,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-02-06 10:24:05,840 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:24:05,840 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] [2025-02-06 10:24:05,849 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-02-06 10:24:06,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:24:06,041 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)] === [2025-02-06 10:24:06,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:24:06,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1552373490, now seen corresponding path program 1 times [2025-02-06 10:24:06,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:24:06,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [666150275] [2025-02-06 10:24:06,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:24:06,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:24:06,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:24:06,044 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:24:06,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-02-06 10:24:06,107 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-02-06 10:24:06,120 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-02-06 10:24:06,121 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:24:06,121 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:24:06,122 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 10:24:06,123 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:24:06,129 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 [2025-02-06 10:24:06,161 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 [2025-02-06 10:24:06,178 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 [2025-02-06 10:24:06,192 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-02-06 10:24:06,193 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 10:24:06,193 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:24:06,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666150275] [2025-02-06 10:24:06,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666150275] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 10:24:06,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 10:24:06,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 10:24:06,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855225636] [2025-02-06 10:24:06,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 10:24:06,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 10:24:06,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:24:06,194 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 10:24:06,194 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 10:24:06,194 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) [2025-02-06 10:24:06,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:24:06,446 INFO L93 Difference]: Finished difference Result 242 states and 320 transitions. [2025-02-06 10:24:06,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 10:24:06,446 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 [2025-02-06 10:24:06,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:24:06,447 INFO L225 Difference]: With dead ends: 242 [2025-02-06 10:24:06,447 INFO L226 Difference]: Without dead ends: 242 [2025-02-06 10:24:06,448 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 [2025-02-06 10:24:06,448 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 [2025-02-06 10:24:06,448 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] [2025-02-06 10:24:06,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2025-02-06 10:24:06,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 241. [2025-02-06 10:24:06,455 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) [2025-02-06 10:24:06,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 320 transitions. [2025-02-06 10:24:06,456 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 320 transitions. Word has length 28 [2025-02-06 10:24:06,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:24:06,456 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 320 transitions. [2025-02-06 10:24:06,457 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) [2025-02-06 10:24:06,457 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 320 transitions. [2025-02-06 10:24:06,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-02-06 10:24:06,458 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:24:06,458 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] [2025-02-06 10:24:06,467 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-02-06 10:24:06,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:24:06,659 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)] === [2025-02-06 10:24:06,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:24:06,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1552373489, now seen corresponding path program 1 times [2025-02-06 10:24:06,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:24:06,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1023081073] [2025-02-06 10:24:06,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:24:06,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:24:06,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:24:06,661 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:24:06,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-02-06 10:24:06,713 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-02-06 10:24:06,730 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-02-06 10:24:06,730 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:24:06,730 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:24:06,731 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-06 10:24:06,733 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:24:06,746 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 [2025-02-06 10:24:06,796 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 [2025-02-06 10:24:06,802 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 [2025-02-06 10:24:06,860 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 [2025-02-06 10:24:06,893 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-02-06 10:24:06,893 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 10:24:06,893 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:24:06,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1023081073] [2025-02-06 10:24:06,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1023081073] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 10:24:06,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 10:24:06,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 10:24:06,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745865830] [2025-02-06 10:24:06,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 10:24:06,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 10:24:06,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:24:06,894 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 10:24:06,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-06 10:24:06,895 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) [2025-02-06 10:24:07,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:24:07,316 INFO L93 Difference]: Finished difference Result 241 states and 318 transitions. [2025-02-06 10:24:07,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 10:24:07,317 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 [2025-02-06 10:24:07,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:24:07,318 INFO L225 Difference]: With dead ends: 241 [2025-02-06 10:24:07,318 INFO L226 Difference]: Without dead ends: 241 [2025-02-06 10:24:07,318 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 [2025-02-06 10:24:07,319 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 4 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 10:24:07,319 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 622 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 10:24:07,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2025-02-06 10:24:07,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2025-02-06 10:24:07,327 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) [2025-02-06 10:24:07,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 318 transitions. [2025-02-06 10:24:07,329 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 318 transitions. Word has length 28 [2025-02-06 10:24:07,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:24:07,330 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 318 transitions. [2025-02-06 10:24:07,330 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) [2025-02-06 10:24:07,330 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 318 transitions. [2025-02-06 10:24:07,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-02-06 10:24:07,330 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:24:07,331 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] [2025-02-06 10:24:07,340 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-02-06 10:24:07,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:24:07,531 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)] === [2025-02-06 10:24:07,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:24:07,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1748886995, now seen corresponding path program 1 times [2025-02-06 10:24:07,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:24:07,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [315837396] [2025-02-06 10:24:07,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:24:07,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:24:07,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:24:07,534 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:24:07,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-02-06 10:24:07,585 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-02-06 10:24:07,595 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-02-06 10:24:07,595 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:24:07,595 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:24:07,596 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-06 10:24:07,597 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:24:07,634 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 [2025-02-06 10:24:07,641 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 [2025-02-06 10:24:07,684 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-02-06 10:24:07,684 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 10:24:07,684 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:24:07,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315837396] [2025-02-06 10:24:07,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315837396] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 10:24:07,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 10:24:07,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 10:24:07,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12371566] [2025-02-06 10:24:07,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 10:24:07,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 10:24:07,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:24:07,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 10:24:07,685 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 10:24:07,685 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) [2025-02-06 10:24:07,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:24:07,814 INFO L93 Difference]: Finished difference Result 233 states and 306 transitions. [2025-02-06 10:24:07,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 10:24:07,815 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 [2025-02-06 10:24:07,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:24:07,816 INFO L225 Difference]: With dead ends: 233 [2025-02-06 10:24:07,816 INFO L226 Difference]: Without dead ends: 233 [2025-02-06 10:24:07,816 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 [2025-02-06 10:24:07,817 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 [2025-02-06 10:24:07,817 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] [2025-02-06 10:24:07,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2025-02-06 10:24:07,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2025-02-06 10:24:07,827 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) [2025-02-06 10:24:07,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 306 transitions. [2025-02-06 10:24:07,828 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 306 transitions. Word has length 28 [2025-02-06 10:24:07,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:24:07,828 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 306 transitions. [2025-02-06 10:24:07,828 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) [2025-02-06 10:24:07,828 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 306 transitions. [2025-02-06 10:24:07,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-02-06 10:24:07,828 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:24:07,828 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] [2025-02-06 10:24:07,837 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-02-06 10:24:08,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:24:08,029 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)] === [2025-02-06 10:24:08,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:24:08,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1477268532, now seen corresponding path program 1 times [2025-02-06 10:24:08,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:24:08,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2051591077] [2025-02-06 10:24:08,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:24:08,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:24:08,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:24:08,032 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:24:08,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-02-06 10:24:08,088 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-06 10:24:08,104 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-06 10:24:08,104 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:24:08,104 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:24:08,106 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-02-06 10:24:08,108 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:24:08,122 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 [2025-02-06 10:24:08,127 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 [2025-02-06 10:24:08,278 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2025-02-06 10:24:08,278 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 [2025-02-06 10:24:08,301 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2025-02-06 10:24:08,302 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 [2025-02-06 10:24:08,421 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 [2025-02-06 10:24:08,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 10:24:08,443 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 [2025-02-06 10:24:08,464 INFO L349 Elim1Store]: treesize reduction 12, result has 42.9 percent of original size [2025-02-06 10:24:08,464 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 [2025-02-06 10:24:08,503 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 4 not checked. [2025-02-06 10:24:08,503 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 10:24:12,714 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:24:12,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051591077] [2025-02-06 10:24:12,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051591077] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 10:24:12,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1048859621] [2025-02-06 10:24:12,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:24:12,714 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-02-06 10:24:12,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 [2025-02-06 10:24:12,716 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-02-06 10:24:12,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2025-02-06 10:24:12,791 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-06 10:24:12,846 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-06 10:24:12,846 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:24:12,846 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:24:12,848 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-02-06 10:24:12,849 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:24:12,862 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 [2025-02-06 10:24:12,868 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 [2025-02-06 10:24:12,935 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 [2025-02-06 10:24:12,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 10:24:12,955 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 [2025-02-06 10:24:12,972 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2025-02-06 10:24:12,972 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 [2025-02-06 10:24:13,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 10:24:13,022 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 [2025-02-06 10:24:13,031 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-02-06 10:24:13,032 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 [2025-02-06 10:24:13,064 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 6 not checked. [2025-02-06 10:24:13,064 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 10:24:17,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1048859621] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 10:24:17,226 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 10:24:17,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 12 [2025-02-06 10:24:17,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525216141] [2025-02-06 10:24:17,226 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 10:24:17,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 10:24:17,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:24:17,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 10:24:17,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=121, Unknown=3, NotChecked=46, Total=210 [2025-02-06 10:24:17,227 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) [2025-02-06 10:24:18,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:24:18,130 INFO L93 Difference]: Finished difference Result 288 states and 323 transitions. [2025-02-06 10:24:18,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 10:24:18,131 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 [2025-02-06 10:24:18,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:24:18,132 INFO L225 Difference]: With dead ends: 288 [2025-02-06 10:24:18,132 INFO L226 Difference]: Without dead ends: 288 [2025-02-06 10:24:18,132 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 64 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=48, Invalid=167, Unknown=3, NotChecked=54, Total=272 [2025-02-06 10:24:18,132 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 230 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 1184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 576 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-02-06 10:24:18,132 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 553 Invalid, 1184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 594 Invalid, 0 Unknown, 576 Unchecked, 0.8s Time] [2025-02-06 10:24:18,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2025-02-06 10:24:18,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 233. [2025-02-06 10:24:18,137 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) [2025-02-06 10:24:18,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 305 transitions. [2025-02-06 10:24:18,138 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 305 transitions. Word has length 30 [2025-02-06 10:24:18,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:24:18,138 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 305 transitions. [2025-02-06 10:24:18,138 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) [2025-02-06 10:24:18,138 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 305 transitions. [2025-02-06 10:24:18,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-02-06 10:24:18,139 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:24:18,139 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] [2025-02-06 10:24:18,147 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-02-06 10:24:18,342 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2025-02-06 10:24:18,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,21 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2025-02-06 10:24:18,540 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)] === [2025-02-06 10:24:18,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:24:18,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1446248726, now seen corresponding path program 1 times [2025-02-06 10:24:18,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:24:18,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2143154346] [2025-02-06 10:24:18,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:24:18,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:24:18,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:24:18,542 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:24:18,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-02-06 10:24:18,598 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-06 10:24:18,610 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-06 10:24:18,610 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:24:18,610 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:24:18,611 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 10:24:18,612 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:24:18,647 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 10:24:18,648 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 10:24:18,648 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:24:18,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143154346] [2025-02-06 10:24:18,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2143154346] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 10:24:18,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 10:24:18,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 10:24:18,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378170959] [2025-02-06 10:24:18,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 10:24:18,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 10:24:18,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:24:18,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 10:24:18,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 10:24:18,649 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) [2025-02-06 10:24:18,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:24:18,671 INFO L93 Difference]: Finished difference Result 143 states and 162 transitions. [2025-02-06 10:24:18,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 10:24:18,672 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 [2025-02-06 10:24:18,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:24:18,672 INFO L225 Difference]: With dead ends: 143 [2025-02-06 10:24:18,672 INFO L226 Difference]: Without dead ends: 141 [2025-02-06 10:24:18,672 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 [2025-02-06 10:24:18,673 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 [2025-02-06 10:24:18,673 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] [2025-02-06 10:24:18,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2025-02-06 10:24:18,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2025-02-06 10:24:18,677 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) [2025-02-06 10:24:18,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 160 transitions. [2025-02-06 10:24:18,678 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 160 transitions. Word has length 30 [2025-02-06 10:24:18,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:24:18,678 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 160 transitions. [2025-02-06 10:24:18,678 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) [2025-02-06 10:24:18,679 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 160 transitions. [2025-02-06 10:24:18,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2025-02-06 10:24:18,679 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:24:18,679 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] [2025-02-06 10:24:18,688 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2025-02-06 10:24:18,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:24:18,880 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)] === [2025-02-06 10:24:18,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:24:18,880 INFO L85 PathProgramCache]: Analyzing trace with hash 894103424, now seen corresponding path program 1 times [2025-02-06 10:24:18,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:24:18,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1377074509] [2025-02-06 10:24:18,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:24:18,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:24:18,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:24:18,882 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:24:18,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-02-06 10:24:18,938 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-02-06 10:24:18,954 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-02-06 10:24:18,955 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:24:18,955 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:24:18,956 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-06 10:24:18,957 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:24:18,960 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 [2025-02-06 10:24:19,042 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2025-02-06 10:24:19,042 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 [2025-02-06 10:24:19,131 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 [2025-02-06 10:24:19,139 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 10:24:19,139 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 10:24:19,439 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 10:24:19,440 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:24:19,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377074509] [2025-02-06 10:24:19,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377074509] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 10:24:19,440 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 10:24:19,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2025-02-06 10:24:19,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829994076] [2025-02-06 10:24:19,440 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 10:24:19,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 10:24:19,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:24:19,442 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 10:24:19,442 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2025-02-06 10:24:19,442 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) [2025-02-06 10:24:19,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:24:19,990 INFO L93 Difference]: Finished difference Result 168 states and 181 transitions. [2025-02-06 10:24:19,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 10:24:19,991 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 [2025-02-06 10:24:19,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:24:19,992 INFO L225 Difference]: With dead ends: 168 [2025-02-06 10:24:19,992 INFO L226 Difference]: Without dead ends: 168 [2025-02-06 10:24:19,992 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 48 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2025-02-06 10:24:19,992 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 182 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-06 10:24:19,993 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 450 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-06 10:24:19,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2025-02-06 10:24:19,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 144. [2025-02-06 10:24:19,998 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) [2025-02-06 10:24:19,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 163 transitions. [2025-02-06 10:24:19,999 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 163 transitions. Word has length 31 [2025-02-06 10:24:19,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:24:19,999 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 163 transitions. [2025-02-06 10:24:19,999 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) [2025-02-06 10:24:19,999 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 163 transitions. [2025-02-06 10:24:19,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2025-02-06 10:24:19,999 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:24:20,002 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] [2025-02-06 10:24:20,010 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-02-06 10:24:20,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:24:20,203 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)] === [2025-02-06 10:24:20,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:24:20,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1979118280, now seen corresponding path program 1 times [2025-02-06 10:24:20,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:24:20,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [458994670] [2025-02-06 10:24:20,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:24:20,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:24:20,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:24:20,206 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:24:20,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-02-06 10:24:20,282 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-02-06 10:24:20,300 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-02-06 10:24:20,301 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:24:20,301 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:24:20,302 INFO L256 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 10:24:20,304 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:24:20,321 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-06 10:24:20,321 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 10:24:20,321 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:24:20,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458994670] [2025-02-06 10:24:20,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [458994670] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 10:24:20,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 10:24:20,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 10:24:20,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255855148] [2025-02-06 10:24:20,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 10:24:20,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 10:24:20,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:24:20,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 10:24:20,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 10:24:20,322 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) [2025-02-06 10:24:20,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:24:20,543 INFO L93 Difference]: Finished difference Result 167 states and 180 transitions. [2025-02-06 10:24:20,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 10:24:20,543 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 [2025-02-06 10:24:20,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:24:20,544 INFO L225 Difference]: With dead ends: 167 [2025-02-06 10:24:20,544 INFO L226 Difference]: Without dead ends: 167 [2025-02-06 10:24:20,544 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 [2025-02-06 10:24:20,544 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 116 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 10:24:20,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 200 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 10:24:20,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2025-02-06 10:24:20,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 143. [2025-02-06 10:24:20,547 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) [2025-02-06 10:24:20,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 162 transitions. [2025-02-06 10:24:20,548 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 162 transitions. Word has length 32 [2025-02-06 10:24:20,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:24:20,548 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 162 transitions. [2025-02-06 10:24:20,549 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) [2025-02-06 10:24:20,549 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 162 transitions. [2025-02-06 10:24:20,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2025-02-06 10:24:20,549 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:24:20,549 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] [2025-02-06 10:24:20,558 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2025-02-06 10:24:20,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:24:20,750 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)] === [2025-02-06 10:24:20,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:24:20,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1979118281, now seen corresponding path program 1 times [2025-02-06 10:24:20,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:24:20,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2122973186] [2025-02-06 10:24:20,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:24:20,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:24:20,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:24:20,752 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:24:20,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-02-06 10:24:20,816 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-02-06 10:24:20,833 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-02-06 10:24:20,833 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:24:20,833 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:24:20,834 INFO L256 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-02-06 10:24:20,836 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:24:20,906 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-02-06 10:24:20,906 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 10:24:20,971 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 [2025-02-06 10:24:21,119 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-02-06 10:24:21,119 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:24:21,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122973186] [2025-02-06 10:24:21,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122973186] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 10:24:21,119 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 10:24:21,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2025-02-06 10:24:21,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985844241] [2025-02-06 10:24:21,119 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 10:24:21,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 10:24:21,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:24:21,120 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 10:24:21,120 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2025-02-06 10:24:21,120 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) [2025-02-06 10:24:21,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:24:21,641 INFO L93 Difference]: Finished difference Result 142 states and 161 transitions. [2025-02-06 10:24:21,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 10:24:21,642 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 [2025-02-06 10:24:21,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:24:21,643 INFO L225 Difference]: With dead ends: 142 [2025-02-06 10:24:21,643 INFO L226 Difference]: Without dead ends: 142 [2025-02-06 10:24:21,643 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2025-02-06 10:24:21,644 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 217 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-06 10:24:21,644 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 656 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-06 10:24:21,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2025-02-06 10:24:21,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2025-02-06 10:24:21,647 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) [2025-02-06 10:24:21,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 161 transitions. [2025-02-06 10:24:21,647 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 161 transitions. Word has length 32 [2025-02-06 10:24:21,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:24:21,647 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 161 transitions. [2025-02-06 10:24:21,648 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) [2025-02-06 10:24:21,648 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 161 transitions. [2025-02-06 10:24:21,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-02-06 10:24:21,648 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:24:21,648 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] [2025-02-06 10:24:21,657 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2025-02-06 10:24:21,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:24:21,849 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)] === [2025-02-06 10:24:21,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:24:21,850 INFO L85 PathProgramCache]: Analyzing trace with hash 239930718, now seen corresponding path program 1 times [2025-02-06 10:24:21,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:24:21,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [28860052] [2025-02-06 10:24:21,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:24:21,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:24:21,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:24:21,852 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:24:21,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-02-06 10:24:21,915 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-02-06 10:24:21,927 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-06 10:24:21,927 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:24:21,927 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:24:21,928 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-02-06 10:24:21,929 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:24:26,324 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-02-06 10:24:26,324 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 10:24:26,447 INFO L349 Elim1Store]: treesize reduction 86, result has 8.5 percent of original size [2025-02-06 10:24:26,448 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 [2025-02-06 10:24:34,685 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:24:34,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28860052] [2025-02-06 10:24:34,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [28860052] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 10:24:34,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1119375560] [2025-02-06 10:24:34,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:24:34,686 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-02-06 10:24:34,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 [2025-02-06 10:24:34,688 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-02-06 10:24:34,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2025-02-06 10:24:34,770 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-02-06 10:24:34,813 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-06 10:24:34,813 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:24:34,813 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:24:34,815 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-02-06 10:24:34,816 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:24:47,644 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 [2025-02-06 10:24:47,672 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-02-06 10:24:47,672 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 10:24:56,030 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 [2025-02-06 10:25:08,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1119375560] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 10:25:08,497 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 10:25:08,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 20 [2025-02-06 10:25:08,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285771023] [2025-02-06 10:25:08,497 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 10:25:08,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-02-06 10:25:08,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:25:08,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-02-06 10:25:08,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=635, Unknown=12, NotChecked=52, Total=812 [2025-02-06 10:25:08,498 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) [2025-02-06 10:25:14,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:25:14,369 INFO L93 Difference]: Finished difference Result 144 states and 162 transitions. [2025-02-06 10:25:14,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-06 10:25:14,369 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 [2025-02-06 10:25:14,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:25:14,371 INFO L225 Difference]: With dead ends: 144 [2025-02-06 10:25:14,371 INFO L226 Difference]: Without dead ends: 130 [2025-02-06 10:25:14,371 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 74 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 49.6s TimeCoverageRelationStatistics Valid=179, Invalid=1144, Unknown=13, NotChecked=70, Total=1406 [2025-02-06 10:25:14,373 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 119 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 961 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 938 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 961 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 138 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-02-06 10:25:14,373 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 938 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 961 Invalid, 1 Unknown, 138 Unchecked, 1.5s Time] [2025-02-06 10:25:14,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2025-02-06 10:25:14,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2025-02-06 10:25:14,376 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) [2025-02-06 10:25:14,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 148 transitions. [2025-02-06 10:25:14,376 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 148 transitions. Word has length 33 [2025-02-06 10:25:14,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:25:14,376 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 148 transitions. [2025-02-06 10:25:14,377 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) [2025-02-06 10:25:14,377 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 148 transitions. [2025-02-06 10:25:14,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2025-02-06 10:25:14,377 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:25:14,377 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] [2025-02-06 10:25:14,381 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2025-02-06 10:25:14,584 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2025-02-06 10:25:14,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,26 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:25:14,778 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)] === [2025-02-06 10:25:14,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:25:14,778 INFO L85 PathProgramCache]: Analyzing trace with hash -737841659, now seen corresponding path program 1 times [2025-02-06 10:25:14,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:25:14,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2130867753] [2025-02-06 10:25:14,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:25:14,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:25:14,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:25:14,780 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:25:14,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2025-02-06 10:25:14,853 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-02-06 10:25:14,874 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-02-06 10:25:14,874 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:25:14,874 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:25:14,877 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-02-06 10:25:14,880 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:25:14,985 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 [2025-02-06 10:25:15,052 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 [2025-02-06 10:25:15,105 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-02-06 10:25:15,105 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 10:25:15,301 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-06 10:25:15,301 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:25:15,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130867753] [2025-02-06 10:25:15,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130867753] provided 1 perfect and 1 imperfect interpolant sequences [2025-02-06 10:25:15,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 10:25:15,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 12 [2025-02-06 10:25:15,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736025639] [2025-02-06 10:25:15,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 10:25:15,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 10:25:15,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:25:15,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 10:25:15,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-02-06 10:25:15,303 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) [2025-02-06 10:25:15,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:25:15,970 INFO L93 Difference]: Finished difference Result 184 states and 199 transitions. [2025-02-06 10:25:15,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 10:25:15,971 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 [2025-02-06 10:25:15,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:25:15,972 INFO L225 Difference]: With dead ends: 184 [2025-02-06 10:25:15,972 INFO L226 Difference]: Without dead ends: 184 [2025-02-06 10:25:15,972 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2025-02-06 10:25:15,972 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 182 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.5s IncrementalHoareTripleChecker+Time [2025-02-06 10:25:15,973 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 409 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-06 10:25:15,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2025-02-06 10:25:15,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 129. [2025-02-06 10:25:15,975 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) [2025-02-06 10:25:15,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 147 transitions. [2025-02-06 10:25:15,976 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 147 transitions. Word has length 34 [2025-02-06 10:25:15,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:25:15,976 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 147 transitions. [2025-02-06 10:25:15,976 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) [2025-02-06 10:25:15,976 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 147 transitions. [2025-02-06 10:25:15,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2025-02-06 10:25:15,976 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:25:15,977 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] [2025-02-06 10:25:15,983 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2025-02-06 10:25:16,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:25:16,177 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)] === [2025-02-06 10:25:16,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:25:16,177 INFO L85 PathProgramCache]: Analyzing trace with hash -737841658, now seen corresponding path program 1 times [2025-02-06 10:25:16,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:25:16,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [667174962] [2025-02-06 10:25:16,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:25:16,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:25:16,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:25:16,180 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:25:16,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2025-02-06 10:25:16,249 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-02-06 10:25:16,269 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-02-06 10:25:16,269 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:25:16,269 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:25:16,271 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-02-06 10:25:16,273 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:25:16,399 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 [2025-02-06 10:25:16,403 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 [2025-02-06 10:25:16,464 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 [2025-02-06 10:25:16,517 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-02-06 10:25:16,517 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 10:25:16,869 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