./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-42f9f8d-1-111_1a-sound--oss--opl3.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-42f9f8d-1-111_1a-sound--oss--opl3.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/bin/uautomizer-verify-zZY32mL2XJ --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 64bit --witnessprinter.graph.data.programhash 5eff9009202d8b0bf60c327eed36946f13574b2b7f3842f1a4c1fa3c35e53160 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:41:59,905 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:42:00,054 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2023-11-23 22:42:00,065 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:42:00,066 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:42:00,112 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:42:00,113 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:42:00,113 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:42:00,115 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:42:00,124 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:42:00,126 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:42:00,127 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:42:00,127 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:42:00,129 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:42:00,130 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:42:00,130 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:42:00,130 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-23 22:42:00,131 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-23 22:42:00,131 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-23 22:42:00,132 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:42:00,132 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 22:42:00,133 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:42:00,133 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:42:00,134 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:42:00,135 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:42:00,135 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:42:00,136 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:42:00,136 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:42:00,137 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:42:00,137 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:42:00,139 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:42:00,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:42:00,139 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:42:00,140 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:42:00,140 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:42:00,140 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:42:00,140 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/bin/uautomizer-verify-zZY32mL2XJ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5eff9009202d8b0bf60c327eed36946f13574b2b7f3842f1a4c1fa3c35e53160 [2023-11-23 22:42:00,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:42:00,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:42:00,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:42:00,496 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:42:00,497 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:42:00,499 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-42f9f8d-1-111_1a-sound--oss--opl3.ko-entry_point.cil.out.i [2023-11-23 22:42:03,635 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:42:04,331 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:42:04,331 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-42f9f8d-1-111_1a-sound--oss--opl3.ko-entry_point.cil.out.i [2023-11-23 22:42:04,387 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/bin/uautomizer-verify-zZY32mL2XJ/data/a0682cc1a/23e25dc3fc1d47b8823d75b783be61f9/FLAG2e4b37383 [2023-11-23 22:42:04,415 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/bin/uautomizer-verify-zZY32mL2XJ/data/a0682cc1a/23e25dc3fc1d47b8823d75b783be61f9 [2023-11-23 22:42:04,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:42:04,425 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:42:04,429 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:42:04,430 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:42:04,436 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:42:04,439 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:42:04" (1/1) ... [2023-11-23 22:42:04,440 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d92009e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:04, skipping insertion in model container [2023-11-23 22:42:04,441 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:42:04" (1/1) ... [2023-11-23 22:42:04,657 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:42:05,900 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:42:06,079 ERROR L324 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) [2023-11-23 22:42:06,080 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2c8d03ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:06, skipping insertion in model container [2023-11-23 22:42:06,080 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:42:06,081 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-23 22:42:06,083 INFO L158 Benchmark]: Toolchain (without parser) took 1657.22ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 114.9MB in the beginning and 130.8MB in the end (delta: -16.0MB). Peak memory consumption was 77.4MB. Max. memory is 16.1GB. [2023-11-23 22:42:06,084 INFO L158 Benchmark]: CDTParser took 0.74ms. Allocated memory is still 125.8MB. Free memory is still 90.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:42:06,085 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1651.95ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 114.9MB in the beginning and 130.8MB in the end (delta: -16.0MB). Peak memory consumption was 77.4MB. Max. memory is 16.1GB. [2023-11-23 22:42:06,087 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74ms. Allocated memory is still 125.8MB. Free memory is still 90.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1651.95ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 114.9MB in the beginning and 130.8MB in the end (delta: -16.0MB). Peak memory consumption was 77.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2843]: 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: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-42f9f8d-1-111_1a-sound--oss--opl3.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/bin/uautomizer-verify-zZY32mL2XJ --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 64bit --witnessprinter.graph.data.programhash 5eff9009202d8b0bf60c327eed36946f13574b2b7f3842f1a4c1fa3c35e53160 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:42:08,608 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:42:08,756 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2023-11-23 22:42:08,768 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:42:08,769 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:42:08,822 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:42:08,823 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:42:08,824 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:42:08,825 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:42:08,831 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:42:08,832 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:42:08,833 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:42:08,834 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:42:08,836 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:42:08,837 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:42:08,837 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:42:08,838 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-23 22:42:08,838 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-23 22:42:08,839 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-23 22:42:08,839 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:42:08,840 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 22:42:08,841 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 22:42:08,841 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 22:42:08,842 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:42:08,842 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:42:08,843 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:42:08,844 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:42:08,845 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:42:08,845 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:42:08,846 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:42:08,848 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:42:08,848 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:42:08,848 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-23 22:42:08,849 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 22:42:08,849 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:42:08,850 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:42:08,850 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:42:08,850 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:42:08,851 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-23 22:42:08,852 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/bin/uautomizer-verify-zZY32mL2XJ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5eff9009202d8b0bf60c327eed36946f13574b2b7f3842f1a4c1fa3c35e53160 [2023-11-23 22:42:09,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:42:09,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:42:09,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:42:09,319 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:42:09,320 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:42:09,322 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-42f9f8d-1-111_1a-sound--oss--opl3.ko-entry_point.cil.out.i [2023-11-23 22:42:12,577 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:42:13,206 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:42:13,207 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-42f9f8d-1-111_1a-sound--oss--opl3.ko-entry_point.cil.out.i [2023-11-23 22:42:13,257 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/bin/uautomizer-verify-zZY32mL2XJ/data/10e0c21b8/dfc880959a16481dad46316d5ec7dce2/FLAG908a76e19 [2023-11-23 22:42:13,277 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/bin/uautomizer-verify-zZY32mL2XJ/data/10e0c21b8/dfc880959a16481dad46316d5ec7dce2 [2023-11-23 22:42:13,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:42:13,286 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:42:13,289 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:42:13,289 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:42:13,295 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:42:13,296 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:42:13" (1/1) ... [2023-11-23 22:42:13,297 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dc53951 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:13, skipping insertion in model container [2023-11-23 22:42:13,297 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:42:13" (1/1) ... [2023-11-23 22:42:13,429 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:42:14,645 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:42:14,753 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-23 22:42:14,798 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:42:15,146 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:42:15,224 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:42:15,307 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [2595] [2023-11-23 22:42:15,309 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [2603] [2023-11-23 22:42:15,533 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:42:15,725 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:42:15,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:15 WrapperNode [2023-11-23 22:42:15,726 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:42:15,728 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:42:15,728 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:42:15,728 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:42:15,738 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:15" (1/1) ... [2023-11-23 22:42:15,862 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:15" (1/1) ... [2023-11-23 22:42:16,125 INFO L138 Inliner]: procedures = 119, calls = 3248, calls flagged for inlining = 28, calls inlined = 27, statements flattened = 4068 [2023-11-23 22:42:16,126 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:42:16,128 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:42:16,128 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:42:16,128 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:42:16,140 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:15" (1/1) ... [2023-11-23 22:42:16,140 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:15" (1/1) ... [2023-11-23 22:42:16,233 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:15" (1/1) ... [2023-11-23 22:42:16,234 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:15" (1/1) ... [2023-11-23 22:42:16,562 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:15" (1/1) ... [2023-11-23 22:42:16,595 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:15" (1/1) ... [2023-11-23 22:42:16,686 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:15" (1/1) ... [2023-11-23 22:42:16,741 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:15" (1/1) ... [2023-11-23 22:42:16,830 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:42:16,833 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:42:16,833 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:42:16,833 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:42:16,835 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:15" (1/1) ... [2023-11-23 22:42:16,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:42:16,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:42:16,870 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:42:16,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:42:16,917 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_alloc_voice [2023-11-23 22:42:16,918 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_alloc_voice [2023-11-23 22:42:16,918 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_set_instr [2023-11-23 22:42:16,918 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_set_instr [2023-11-23 22:42:16,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-23 22:42:16,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-23 22:42:16,919 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-23 22:42:16,919 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_reset [2023-11-23 22:42:16,919 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_reset [2023-11-23 22:42:16,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2023-11-23 22:42:16,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-23 22:42:16,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 22:42:16,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-11-23 22:42:16,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 22:42:16,922 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_setup_voice [2023-11-23 22:42:16,922 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_setup_voice [2023-11-23 22:42:16,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 22:42:16,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 22:42:16,922 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_command [2023-11-23 22:42:16,922 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_command [2023-11-23 22:42:16,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 22:42:16,923 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 22:42:16,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 22:42:16,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 22:42:16,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_len [2023-11-23 22:42:16,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_len [2023-11-23 22:42:16,924 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2023-11-23 22:42:16,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2023-11-23 22:42:16,925 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_hw_control [2023-11-23 22:42:16,926 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_hw_control [2023-11-23 22:42:16,926 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 22:42:16,927 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 22:42:16,927 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_volume_method [2023-11-23 22:42:16,927 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_volume_method [2023-11-23 22:42:16,927 INFO L130 BoogieDeclarations]: Found specification of procedure set_voice_volume [2023-11-23 22:42:16,927 INFO L138 BoogieDeclarations]: Found implementation of procedure set_voice_volume [2023-11-23 22:42:16,927 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_aftertouch [2023-11-23 22:42:16,928 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_aftertouch [2023-11-23 22:42:16,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 22:42:16,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 22:42:16,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-23 22:42:16,928 INFO L130 BoogieDeclarations]: Found specification of procedure freq_to_fnum [2023-11-23 22:42:16,928 INFO L138 BoogieDeclarations]: Found implementation of procedure freq_to_fnum [2023-11-23 22:42:16,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__copy_from_user_1 [2023-11-23 22:42:16,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__copy_from_user_1 [2023-11-23 22:42:16,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2023-11-23 22:42:16,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-23 22:42:16,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2023-11-23 22:42:16,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 22:42:16,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 22:42:16,929 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 22:42:16,930 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 22:42:16,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 22:42:16,930 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_load_patch [2023-11-23 22:42:16,930 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_load_patch [2023-11-23 22:42:16,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:42:16,931 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_start_note [2023-11-23 22:42:16,931 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_start_note [2023-11-23 22:42:16,931 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_kill_note [2023-11-23 22:42:16,932 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_kill_note [2023-11-23 22:42:16,932 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-23 22:42:16,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-23 22:42:16,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 22:42:16,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 22:42:16,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2023-11-23 22:42:16,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2023-11-23 22:42:16,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2023-11-23 22:42:16,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 22:42:16,934 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_ioctl [2023-11-23 22:42:16,935 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_ioctl [2023-11-23 22:42:16,935 INFO L130 BoogieDeclarations]: Found specification of procedure compute_finetune [2023-11-23 22:42:16,935 INFO L138 BoogieDeclarations]: Found implementation of procedure compute_finetune [2023-11-23 22:42:16,935 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_bender [2023-11-23 22:42:16,936 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_bender [2023-11-23 22:42:16,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-23 22:42:16,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-23 22:42:16,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-11-23 22:42:16,937 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_panning [2023-11-23 22:42:16,937 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_panning [2023-11-23 22:42:16,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:42:16,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-23 22:42:16,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 22:42:16,938 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-23 22:42:16,938 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-23 22:42:16,938 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 22:42:16,938 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 22:42:16,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-11-23 22:42:16,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 22:42:16,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_copy_from_user_7 [2023-11-23 22:42:16,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_copy_from_user_7 [2023-11-23 22:42:16,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-23 22:42:16,940 INFO L130 BoogieDeclarations]: Found specification of procedure calc_vol [2023-11-23 22:42:16,940 INFO L138 BoogieDeclarations]: Found implementation of procedure calc_vol [2023-11-23 22:42:16,940 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-11-23 22:42:16,940 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-11-23 22:42:16,940 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-23 22:42:16,940 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-23 22:42:16,940 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_controller [2023-11-23 22:42:16,941 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_controller [2023-11-23 22:42:16,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2023-11-23 22:42:16,941 INFO L130 BoogieDeclarations]: Found specification of procedure store_instr [2023-11-23 22:42:16,941 INFO L138 BoogieDeclarations]: Found implementation of procedure store_instr [2023-11-23 22:42:16,941 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2023-11-23 22:42:16,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2023-11-23 22:42:16,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-23 22:42:16,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-23 22:42:16,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:42:16,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:42:16,942 INFO L130 BoogieDeclarations]: Found specification of procedure bend_pitch [2023-11-23 22:42:16,942 INFO L138 BoogieDeclarations]: Found implementation of procedure bend_pitch [2023-11-23 22:42:17,467 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:42:17,471 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:42:23,007 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 22:42:24,271 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-23 22:42:36,831 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:42:37,417 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:42:37,417 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 22:42:37,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:42:37 BoogieIcfgContainer [2023-11-23 22:42:37,419 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:42:37,423 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:42:37,423 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:42:37,427 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:42:37,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:42:13" (1/3) ... [2023-11-23 22:42:37,433 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@773e2b14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:42:37, skipping insertion in model container [2023-11-23 22:42:37,433 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:15" (2/3) ... [2023-11-23 22:42:37,434 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@773e2b14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:42:37, skipping insertion in model container [2023-11-23 22:42:37,434 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:42:37" (3/3) ... [2023-11-23 22:42:37,435 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-42f9f8d-1-111_1a-sound--oss--opl3.ko-entry_point.cil.out.i [2023-11-23 22:42:37,457 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:42:37,457 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 795 error locations. [2023-11-23 22:42:37,555 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:42:37,563 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@5d31b0d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:42:37,564 INFO L358 AbstractCegarLoop]: Starting to check reachability of 795 error locations. [2023-11-23 22:42:37,577 INFO L276 IsEmpty]: Start isEmpty. Operand has 1879 states, 864 states have (on average 2.1840277777777777) internal successors, (1887), 1673 states have internal predecessors, (1887), 182 states have call successors, (182), 40 states have call predecessors, (182), 39 states have return successors, (179), 175 states have call predecessors, (179), 179 states have call successors, (179) [2023-11-23 22:42:37,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-23 22:42:37,590 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:42:37,590 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:42:37,591 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr46REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [opl3_alloc_voiceErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, opl3_alloc_voiceErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, opl3_alloc_voiceErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 792 more)] === [2023-11-23 22:42:37,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:42:37,601 INFO L85 PathProgramCache]: Analyzing trace with hash -93450912, now seen corresponding path program 1 times [2023-11-23 22:42:37,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:42:37,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1940599740] [2023-11-23 22:42:37,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:42:37,629 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:42:37,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:42:37,633 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 22:42:37,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 22:42:39,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:39,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 3065 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:42:39,321 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:42:39,393 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-23 22:42:39,393 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:42:39,394 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:42:39,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1940599740] [2023-11-23 22:42:39,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1940599740] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:42:39,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:42:39,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:42:39,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556523814] [2023-11-23 22:42:39,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:42:39,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:42:39,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:42:39,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:42:39,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:42:39,451 INFO L87 Difference]: Start difference. First operand has 1879 states, 864 states have (on average 2.1840277777777777) internal successors, (1887), 1673 states have internal predecessors, (1887), 182 states have call successors, (182), 40 states have call predecessors, (182), 39 states have return successors, (179), 175 states have call predecessors, (179), 179 states have call successors, (179) Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-23 22:42:43,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:42:43,449 INFO L93 Difference]: Finished difference Result 3463 states and 4114 transitions. [2023-11-23 22:42:43,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:42:43,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 33 [2023-11-23 22:42:43,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:42:43,510 INFO L225 Difference]: With dead ends: 3463 [2023-11-23 22:42:43,510 INFO L226 Difference]: Without dead ends: 3454 [2023-11-23 22:42:43,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:42:43,519 INFO L413 NwaCegarLoop]: 2204 mSDtfsCounter, 2179 mSDsluCounter, 1796 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2179 SdHoareTripleChecker+Valid, 4000 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-23 22:42:43,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2179 Valid, 4000 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-23 22:42:43,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3454 states. [2023-11-23 22:42:43,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3454 to 2758. [2023-11-23 22:42:43,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2758 states, 1585 states have (on average 2.1930599369085173) internal successors, (3476), 2396 states have internal predecessors, (3476), 310 states have call successors, (310), 73 states have call predecessors, (310), 72 states have return successors, (309), 301 states have call predecessors, (309), 309 states have call successors, (309) [2023-11-23 22:42:43,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2758 states to 2758 states and 4095 transitions. [2023-11-23 22:42:43,769 INFO L78 Accepts]: Start accepts. Automaton has 2758 states and 4095 transitions. Word has length 33 [2023-11-23 22:42:43,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:42:43,770 INFO L495 AbstractCegarLoop]: Abstraction has 2758 states and 4095 transitions. [2023-11-23 22:42:43,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-23 22:42:43,770 INFO L276 IsEmpty]: Start isEmpty. Operand 2758 states and 4095 transitions. [2023-11-23 22:42:43,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-23 22:42:43,774 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:42:43,774 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:42:43,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-23 22:42:43,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:42:43,990 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting opl3_alloc_voiceErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [opl3_alloc_voiceErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, opl3_alloc_voiceErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, opl3_alloc_voiceErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 792 more)] === [2023-11-23 22:42:43,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:42:43,990 INFO L85 PathProgramCache]: Analyzing trace with hash 942368256, now seen corresponding path program 1 times [2023-11-23 22:42:43,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:42:43,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [198563523] [2023-11-23 22:42:43,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:42:43,998 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:42:43,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:42:43,999 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 22:42:44,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c17e8cc2-9ad5-4a00-b69e-d35ffaa0f330/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-23 22:42:45,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:45,480 INFO L262 TraceCheckSpWp]: Trace formula consists of 3075 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:42:45,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:42:45,507 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-23 22:42:45,507 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:42:45,508 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:42:45,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [198563523] [2023-11-23 22:42:45,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [198563523] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:42:45,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:42:45,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:42:45,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67885345] [2023-11-23 22:42:45,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:42:45,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:42:45,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:42:45,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:42:45,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:42:45,512 INFO L87 Difference]: Start difference. First operand 2758 states and 4095 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4)