./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 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test15-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme --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 0.2.4-dev-0e0057c [2023-11-26 12:05:05,332 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:05:05,451 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-26 12:05:05,467 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:05:05,468 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:05:05,502 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:05:05,503 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:05:05,504 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:05:05,505 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:05:05,505 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:05:05,506 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:05:05,506 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:05:05,507 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:05:05,508 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:05:05,509 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:05:05,509 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:05:05,510 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:05:05,510 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:05:05,511 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:05:05,512 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:05:05,512 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-26 12:05:05,513 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-26 12:05:05,513 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-26 12:05:05,514 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:05:05,515 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 12:05:05,515 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:05:05,516 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:05:05,516 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:05:05,517 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:05:05,518 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:05:05,518 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:05:05,519 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:05:05,519 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:05:05,520 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:05:05,520 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:05:05,521 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:05:05,521 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:05:05,522 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:05:05,522 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:05:05,523 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:05:05,523 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:05:05,525 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_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d2e5061cdab54d9faeb4b87debefa6d4cd511c313e4ad95bcaf137fbc78127a3 [2023-11-26 12:05:05,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:05:05,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:05:05,796 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:05:05,798 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:05:05,798 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:05:05,800 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/ldv-memsafety/memleaks_test15-2.i [2023-11-26 12:05:08,994 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:05:09,362 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:05:09,363 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/sv-benchmarks/c/ldv-memsafety/memleaks_test15-2.i [2023-11-26 12:05:09,383 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/data/762b40cfc/09c5ad42e8854d8fb3549894cfabe30c/FLAGff1c330f1 [2023-11-26 12:05:09,398 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/data/762b40cfc/09c5ad42e8854d8fb3549894cfabe30c [2023-11-26 12:05:09,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:05:09,402 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:05:09,404 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:05:09,404 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:05:09,409 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:05:09,410 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:05:09" (1/1) ... [2023-11-26 12:05:09,412 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ca20de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:09, skipping insertion in model container [2023-11-26 12:05:09,412 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:05:09" (1/1) ... [2023-11-26 12:05:09,477 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:05:10,018 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:05:10,040 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) [2023-11-26 12:05:10,041 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@79aac281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:10, skipping insertion in model container [2023-11-26 12:05:10,041 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:05:10,042 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-26 12:05:10,044 INFO L158 Benchmark]: Toolchain (without parser) took 640.68ms. Allocated memory is still 153.1MB. Free memory was 122.1MB in the beginning and 107.0MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-26 12:05:10,045 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 115.3MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:05:10,045 INFO L158 Benchmark]: CACSL2BoogieTranslator took 637.98ms. Allocated memory is still 153.1MB. Free memory was 121.7MB in the beginning and 107.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-26 12:05:10,047 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 115.3MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 637.98ms. Allocated memory is still 153.1MB. Free memory was 121.7MB in the beginning and 107.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test15-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme --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 0.2.4-dev-0e0057c [2023-11-26 12:05:12,764 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:05:12,896 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-26 12:05:12,918 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:05:12,919 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:05:12,967 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:05:12,968 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:05:12,969 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:05:12,970 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:05:12,975 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:05:12,976 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:05:12,977 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:05:12,978 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:05:12,980 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:05:12,980 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:05:12,981 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:05:12,982 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:05:12,982 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:05:12,983 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:05:12,984 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:05:12,984 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-26 12:05:12,985 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-26 12:05:12,985 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-26 12:05:12,986 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:05:12,986 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 12:05:12,987 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 12:05:12,987 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 12:05:12,988 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:05:12,988 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:05:12,989 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:05:12,991 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:05:12,991 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:05:12,992 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:05:12,992 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:05:12,993 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:05:12,993 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:05:12,994 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:05:12,994 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 12:05:12,995 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 12:05:12,995 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:05:12,995 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:05:12,996 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:05:12,996 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:05:12,996 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 12:05:12,997 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_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d2e5061cdab54d9faeb4b87debefa6d4cd511c313e4ad95bcaf137fbc78127a3 [2023-11-26 12:05:13,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:05:13,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:05:13,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:05:13,476 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:05:13,477 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:05:13,479 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/ldv-memsafety/memleaks_test15-2.i [2023-11-26 12:05:16,594 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:05:16,964 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:05:16,965 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/sv-benchmarks/c/ldv-memsafety/memleaks_test15-2.i [2023-11-26 12:05:16,992 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/data/d702329ad/b27450c04d7745e1ad8498572c7bffbc/FLAG489c954b0 [2023-11-26 12:05:17,010 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/data/d702329ad/b27450c04d7745e1ad8498572c7bffbc [2023-11-26 12:05:17,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:05:17,016 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:05:17,017 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:05:17,018 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:05:17,024 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:05:17,025 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:05:17" (1/1) ... [2023-11-26 12:05:17,027 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@428d542f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:17, skipping insertion in model container [2023-11-26 12:05:17,027 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:05:17" (1/1) ... [2023-11-26 12:05:17,090 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:05:17,594 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:05:17,636 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-26 12:05:17,698 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:05:17,750 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:05:17,759 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:05:17,821 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:05:17,889 WARN L675 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:05:17,898 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:05:17,899 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:17 WrapperNode [2023-11-26 12:05:17,899 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:05:17,901 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:05:17,901 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:05:17,901 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:05:17,910 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:17" (1/1) ... [2023-11-26 12:05:17,969 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:17" (1/1) ... [2023-11-26 12:05:18,034 INFO L138 Inliner]: procedures = 176, calls = 104, calls flagged for inlining = 31, calls inlined = 14, statements flattened = 181 [2023-11-26 12:05:18,035 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:05:18,036 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:05:18,037 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:05:18,037 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:05:18,051 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:17" (1/1) ... [2023-11-26 12:05:18,052 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:17" (1/1) ... [2023-11-26 12:05:18,068 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:17" (1/1) ... [2023-11-26 12:05:18,123 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]. [2023-11-26 12:05:18,123 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:17" (1/1) ... [2023-11-26 12:05:18,123 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:17" (1/1) ... [2023-11-26 12:05:18,138 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:17" (1/1) ... [2023-11-26 12:05:18,141 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:17" (1/1) ... [2023-11-26 12:05:18,144 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:17" (1/1) ... [2023-11-26 12:05:18,147 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:17" (1/1) ... [2023-11-26 12:05:18,172 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:05:18,173 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:05:18,174 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:05:18,174 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:05:18,175 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:17" (1/1) ... [2023-11-26 12:05:18,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:05:18,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:05:18,227 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:05:18,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:05:18,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-26 12:05:18,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-26 12:05:18,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-26 12:05:18,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-26 12:05:18,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 12:05:18,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:05:18,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-26 12:05:18,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-26 12:05:18,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_hid_set_drvdata [2023-11-26 12:05:18,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_hid_set_drvdata [2023-11-26 12:05:18,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-26 12:05:18,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-26 12:05:18,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2023-11-26 12:05:18,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2023-11-26 12:05:18,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-26 12:05:18,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-26 12:05:18,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:05:18,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-26 12:05:18,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-26 12:05:18,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:05:18,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:05:18,482 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:05:18,485 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:05:19,197 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:05:19,291 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:05:19,292 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 12:05:19,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:05:19 BoogieIcfgContainer [2023-11-26 12:05:19,293 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:05:19,296 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:05:19,296 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:05:19,300 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:05:19,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:05:17" (1/3) ... [2023-11-26 12:05:19,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a8ea086 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:05:19, skipping insertion in model container [2023-11-26 12:05:19,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:17" (2/3) ... [2023-11-26 12:05:19,302 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a8ea086 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:05:19, skipping insertion in model container [2023-11-26 12:05:19,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:05:19" (3/3) ... [2023-11-26 12:05:19,304 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test15-2.i [2023-11-26 12:05:19,327 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:05:19,328 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 50 error locations. [2023-11-26 12:05:19,386 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:05:19,394 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;@c0328ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:05:19,395 INFO L358 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2023-11-26 12:05:19,400 INFO L276 IsEmpty]: Start isEmpty. Operand has 115 states, 57 states have (on average 2.0701754385964914) internal successors, (118), 107 states have internal predecessors, (118), 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) [2023-11-26 12:05:19,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-26 12:05:19,411 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:19,412 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:19,412 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2023-11-26 12:05:19,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:19,419 INFO L85 PathProgramCache]: Analyzing trace with hash -969370254, now seen corresponding path program 1 times [2023-11-26 12:05:19,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:05:19,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1416457829] [2023-11-26 12:05:19,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:19,438 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 [2023-11-26 12:05:19,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:05:19,444 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 12:05:19,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:19,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 12:05:19,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:19,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:05:19,682 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:05:19,683 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:05:19,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1416457829] [2023-11-26 12:05:19,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1416457829] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:05:19,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:05:19,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:05:19,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767718713] [2023-11-26 12:05:19,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:05:19,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 12:05:19,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:05:19,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 12:05:19,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:05:19,756 INFO L87 Difference]: Start difference. First operand has 115 states, 57 states have (on average 2.0701754385964914) internal successors, (118), 107 states have internal predecessors, (118), 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 1.6) internal successors, (8), 4 states have internal predecessors, (8), 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) [2023-11-26 12:05:20,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:20,254 INFO L93 Difference]: Finished difference Result 217 states and 248 transitions. [2023-11-26 12:05:20,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 12:05:20,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 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 10 [2023-11-26 12:05:20,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:20,276 INFO L225 Difference]: With dead ends: 217 [2023-11-26 12:05:20,278 INFO L226 Difference]: Without dead ends: 216 [2023-11-26 12:05:20,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:05:20,288 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 104 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:20,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 411 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-26 12:05:20,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2023-11-26 12:05:20,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 118. [2023-11-26 12:05:20,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 60 states have (on average 2.0) internal successors, (120), 109 states have internal predecessors, (120), 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) [2023-11-26 12:05:20,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 133 transitions. [2023-11-26 12:05:20,398 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 133 transitions. Word has length 10 [2023-11-26 12:05:20,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:20,400 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 133 transitions. [2023-11-26 12:05:20,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 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) [2023-11-26 12:05:20,403 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 133 transitions. [2023-11-26 12:05:20,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-26 12:05:20,406 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:20,407 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:20,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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)] Ended with exit code 0 [2023-11-26 12:05:20,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:20,610 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2023-11-26 12:05:20,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:20,611 INFO L85 PathProgramCache]: Analyzing trace with hash -81866573, now seen corresponding path program 1 times [2023-11-26 12:05:20,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:05:20,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [617701241] [2023-11-26 12:05:20,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:20,612 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 [2023-11-26 12:05:20,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:05:20,637 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 12:05:20,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:20,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:20,753 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 12:05:20,757 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:20,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:05:20,794 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:05:20,795 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:05:20,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [617701241] [2023-11-26 12:05:20,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [617701241] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:05:20,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:05:20,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:05:20,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525280516] [2023-11-26 12:05:20,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:05:20,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:05:20,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:05:20,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:05:20,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:05:20,800 INFO L87 Difference]: Start difference. First operand 118 states and 133 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-26 12:05:21,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:21,418 INFO L93 Difference]: Finished difference Result 197 states and 222 transitions. [2023-11-26 12:05:21,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:05:21,419 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 10 [2023-11-26 12:05:21,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:21,421 INFO L225 Difference]: With dead ends: 197 [2023-11-26 12:05:21,421 INFO L226 Difference]: Without dead ends: 195 [2023-11-26 12:05:21,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:05:21,423 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 80 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:21,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 338 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-26 12:05:21,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-11-26 12:05:21,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 114. [2023-11-26 12:05:21,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 57 states have (on average 2.0350877192982457) internal successors, (116), 106 states have internal predecessors, (116), 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) [2023-11-26 12:05:21,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 126 transitions. [2023-11-26 12:05:21,438 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 126 transitions. Word has length 10 [2023-11-26 12:05:21,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:21,439 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 126 transitions. [2023-11-26 12:05:21,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-26 12:05:21,439 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 126 transitions. [2023-11-26 12:05:21,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-26 12:05:21,440 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:21,440 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:21,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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)] Forceful destruction successful, exit code 0 [2023-11-26 12:05:21,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:21,643 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2023-11-26 12:05:21,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:21,644 INFO L85 PathProgramCache]: Analyzing trace with hash -283543717, now seen corresponding path program 1 times [2023-11-26 12:05:21,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:05:21,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1694071276] [2023-11-26 12:05:21,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:21,645 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 [2023-11-26 12:05:21,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:05:21,651 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 12:05:21,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 (4)] Waiting until timeout for monitored process [2023-11-26 12:05:21,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:21,770 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 12:05:21,773 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:21,823 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:05:21,823 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:05:21,823 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:05:21,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1694071276] [2023-11-26 12:05:21,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1694071276] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:05:21,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:05:21,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:05:21,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189474942] [2023-11-26 12:05:21,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:05:21,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 12:05:21,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:05:21,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 12:05:21,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:05:21,830 INFO L87 Difference]: Start difference. First operand 114 states and 126 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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) [2023-11-26 12:05:22,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:22,277 INFO L93 Difference]: Finished difference Result 213 states and 240 transitions. [2023-11-26 12:05:22,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 12:05:22,278 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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 16 [2023-11-26 12:05:22,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:22,281 INFO L225 Difference]: With dead ends: 213 [2023-11-26 12:05:22,281 INFO L226 Difference]: Without dead ends: 213 [2023-11-26 12:05:22,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:05:22,283 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 101 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:22,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 397 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-26 12:05:22,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2023-11-26 12:05:22,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 118. [2023-11-26 12:05:22,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 60 states have (on average 1.9833333333333334) internal successors, (119), 109 states have internal predecessors, (119), 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) [2023-11-26 12:05:22,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 132 transitions. [2023-11-26 12:05:22,299 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 132 transitions. Word has length 16 [2023-11-26 12:05:22,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:22,300 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 132 transitions. [2023-11-26 12:05:22,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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) [2023-11-26 12:05:22,300 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 132 transitions. [2023-11-26 12:05:22,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-26 12:05:22,301 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:22,301 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:22,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 (4)] Forceful destruction successful, exit code 0 [2023-11-26 12:05:22,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:22,504 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2023-11-26 12:05:22,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:22,505 INFO L85 PathProgramCache]: Analyzing trace with hash -254914566, now seen corresponding path program 1 times [2023-11-26 12:05:22,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:05:22,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [517964918] [2023-11-26 12:05:22,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:22,507 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 [2023-11-26 12:05:22,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:05:22,522 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 12:05:22,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 (5)] Waiting until timeout for monitored process [2023-11-26 12:05:22,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:22,676 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 12:05:22,680 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:22,737 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:05:22,737 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:05:22,798 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:05:22,798 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:05:22,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [517964918] [2023-11-26 12:05:22,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [517964918] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:05:22,801 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 12:05:22,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2023-11-26 12:05:22,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384029704] [2023-11-26 12:05:22,802 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 12:05:22,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 12:05:22,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:05:22,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 12:05:22,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:05:22,805 INFO L87 Difference]: Start difference. First operand 118 states and 132 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2023-11-26 12:05:23,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:23,056 INFO L93 Difference]: Finished difference Result 117 states and 131 transitions. [2023-11-26 12:05:23,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 12:05:23,058 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 16 [2023-11-26 12:05:23,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:23,059 INFO L225 Difference]: With dead ends: 117 [2023-11-26 12:05:23,060 INFO L226 Difference]: Without dead ends: 117 [2023-11-26 12:05:23,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:05:23,061 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 100 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:23,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 321 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:05:23,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-11-26 12:05:23,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2023-11-26 12:05:23,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 60 states have (on average 1.9666666666666666) internal successors, (118), 108 states have internal predecessors, (118), 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) [2023-11-26 12:05:23,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 131 transitions. [2023-11-26 12:05:23,071 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 131 transitions. Word has length 16 [2023-11-26 12:05:23,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:23,071 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 131 transitions. [2023-11-26 12:05:23,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2023-11-26 12:05:23,072 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 131 transitions. [2023-11-26 12:05:23,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-26 12:05:23,073 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:23,073 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:23,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 (5)] Forceful destruction successful, exit code 0 [2023-11-26 12:05:23,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:23,276 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2023-11-26 12:05:23,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:23,277 INFO L85 PathProgramCache]: Analyzing trace with hash 687583262, now seen corresponding path program 1 times [2023-11-26 12:05:23,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:05:23,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [888050951] [2023-11-26 12:05:23,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:23,278 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 [2023-11-26 12:05:23,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:05:23,279 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 12:05:23,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 (6)] Waiting until timeout for monitored process [2023-11-26 12:05:23,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:23,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 12:05:23,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:23,781 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:05:23,782 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:05:23,923 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:05:23,923 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:05:23,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [888050951] [2023-11-26 12:05:23,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [888050951] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:05:23,924 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 12:05:23,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 9 [2023-11-26 12:05:23,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477171712] [2023-11-26 12:05:23,924 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 12:05:23,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-26 12:05:23,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:05:23,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-26 12:05:23,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-26 12:05:23,926 INFO L87 Difference]: Start difference. First operand 117 states and 131 transitions. Second operand has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-26 12:05:24,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:24,920 INFO L93 Difference]: Finished difference Result 299 states and 336 transitions. [2023-11-26 12:05:24,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 12:05:24,922 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 17 [2023-11-26 12:05:24,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:24,925 INFO L225 Difference]: With dead ends: 299 [2023-11-26 12:05:24,925 INFO L226 Difference]: Without dead ends: 299 [2023-11-26 12:05:24,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-11-26 12:05:24,927 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 586 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 593 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:24,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [593 Valid, 397 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-26 12:05:24,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2023-11-26 12:05:24,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 140. [2023-11-26 12:05:24,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 79 states have (on average 2.0) internal successors, (158), 126 states have internal predecessors, (158), 8 states have call successors, (8), 4 states have call predecessors, (8), 5 states have return successors, (13), 9 states have call predecessors, (13), 8 states have call successors, (13) [2023-11-26 12:05:24,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 179 transitions. [2023-11-26 12:05:24,944 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 179 transitions. Word has length 17 [2023-11-26 12:05:24,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:24,945 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 179 transitions. [2023-11-26 12:05:24,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-26 12:05:24,946 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 179 transitions. [2023-11-26 12:05:24,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-26 12:05:24,947 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:24,947 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:24,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 (6)] Forceful destruction successful, exit code 0 [2023-11-26 12:05:25,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:25,150 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2023-11-26 12:05:25,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:25,151 INFO L85 PathProgramCache]: Analyzing trace with hash -159755140, now seen corresponding path program 1 times [2023-11-26 12:05:25,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:05:25,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [107761828] [2023-11-26 12:05:25,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:25,152 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 [2023-11-26 12:05:25,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:05:25,154 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 12:05:25,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 (7)] Waiting until timeout for monitored process [2023-11-26 12:05:25,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:25,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 12:05:25,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:25,269 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 [2023-11-26 12:05:25,359 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:05:25,359 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:05:25,531 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:05:25,532 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:05:25,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [107761828] [2023-11-26 12:05:25,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [107761828] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:05:25,533 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 12:05:25,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2023-11-26 12:05:25,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033133263] [2023-11-26 12:05:25,533 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 12:05:25,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 12:05:25,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:05:25,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 12:05:25,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:05:25,535 INFO L87 Difference]: Start difference. First operand 140 states and 179 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2023-11-26 12:05:26,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:26,365 INFO L93 Difference]: Finished difference Result 200 states and 245 transitions. [2023-11-26 12:05:26,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:05:26,366 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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 18 [2023-11-26 12:05:26,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:26,368 INFO L225 Difference]: With dead ends: 200 [2023-11-26 12:05:26,369 INFO L226 Difference]: Without dead ends: 200 [2023-11-26 12:05:26,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:05:26,370 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 97 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:26,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 272 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-26 12:05:26,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2023-11-26 12:05:26,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 152. [2023-11-26 12:05:26,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 90 states have (on average 1.988888888888889) internal successors, (179), 136 states have internal predecessors, (179), 9 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (15), 11 states have call predecessors, (15), 9 states have call successors, (15) [2023-11-26 12:05:26,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 203 transitions. [2023-11-26 12:05:26,383 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 203 transitions. Word has length 18 [2023-11-26 12:05:26,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:26,383 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 203 transitions. [2023-11-26 12:05:26,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2023-11-26 12:05:26,384 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 203 transitions. [2023-11-26 12:05:26,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-26 12:05:26,385 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:26,385 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:26,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 (7)] Forceful destruction successful, exit code 0 [2023-11-26 12:05:26,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:26,589 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2023-11-26 12:05:26,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:26,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1347796669, now seen corresponding path program 1 times [2023-11-26 12:05:26,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:05:26,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [390474116] [2023-11-26 12:05:26,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:26,590 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 [2023-11-26 12:05:26,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:05:26,593 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 12:05:26,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 (8)] Waiting until timeout for monitored process [2023-11-26 12:05:26,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:26,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 12:05:26,680 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:26,746 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:05:26,747 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:05:26,747 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:05:26,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [390474116] [2023-11-26 12:05:26,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [390474116] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:05:26,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:05:26,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:05:26,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405275139] [2023-11-26 12:05:26,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:05:26,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 12:05:26,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:05:26,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 12:05:26,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:05:26,752 INFO L87 Difference]: Start difference. First operand 152 states and 203 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:05:27,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:27,053 INFO L93 Difference]: Finished difference Result 124 states and 137 transitions. [2023-11-26 12:05:27,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 12:05:27,054 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (2), 2 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 18 [2023-11-26 12:05:27,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:27,055 INFO L225 Difference]: With dead ends: 124 [2023-11-26 12:05:27,055 INFO L226 Difference]: Without dead ends: 120 [2023-11-26 12:05:27,056 INFO L412 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 [2023-11-26 12:05:27,057 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 0 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:27,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 425 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 12:05:27,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-11-26 12:05:27,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2023-11-26 12:05:27,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 65 states have (on average 1.8615384615384616) internal successors, (121), 110 states have internal predecessors, (121), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (7), 6 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-26 12:05:27,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 133 transitions. [2023-11-26 12:05:27,064 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 133 transitions. Word has length 18 [2023-11-26 12:05:27,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:27,064 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 133 transitions. [2023-11-26 12:05:27,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:05:27,065 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 133 transitions. [2023-11-26 12:05:27,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-26 12:05:27,066 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:27,066 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:27,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 (8)] Ended with exit code 0 [2023-11-26 12:05:27,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:27,269 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2023-11-26 12:05:27,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:27,269 INFO L85 PathProgramCache]: Analyzing trace with hash -883799313, now seen corresponding path program 1 times [2023-11-26 12:05:27,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:05:27,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1071606856] [2023-11-26 12:05:27,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:27,270 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 [2023-11-26 12:05:27,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:05:27,272 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 12:05:27,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 (9)] Waiting until timeout for monitored process [2023-11-26 12:05:27,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:27,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-26 12:05:27,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:27,414 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 [2023-11-26 12:05:27,487 WARN L876 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (= (store |c_old(#valid)| |ldv_malloc_#res.base| (_ bv1 1)) |c_#valid|)) is different from true [2023-11-26 12:05:27,536 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-26 12:05:27,537 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 20 [2023-11-26 12:05:27,557 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 2 not checked. [2023-11-26 12:05:27,558 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:05:27,783 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:05:27,783 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:05:27,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1071606856] [2023-11-26 12:05:27,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1071606856] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:05:27,784 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 12:05:27,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2023-11-26 12:05:27,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857615218] [2023-11-26 12:05:27,784 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 12:05:27,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 12:05:27,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:05:27,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 12:05:27,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=31, Unknown=1, NotChecked=10, Total=56 [2023-11-26 12:05:27,785 INFO L87 Difference]: Start difference. First operand 120 states and 133 transitions. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 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) [2023-11-26 12:05:28,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:28,621 INFO L93 Difference]: Finished difference Result 152 states and 170 transitions. [2023-11-26 12:05:28,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:05:28,621 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 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 21 [2023-11-26 12:05:28,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:28,623 INFO L225 Difference]: With dead ends: 152 [2023-11-26 12:05:28,623 INFO L226 Difference]: Without dead ends: 152 [2023-11-26 12:05:28,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=41, Unknown=1, NotChecked=12, Total=72 [2023-11-26 12:05:28,624 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 88 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 163 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:28,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 325 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 370 Invalid, 0 Unknown, 163 Unchecked, 0.8s Time] [2023-11-26 12:05:28,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-11-26 12:05:28,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 133. [2023-11-26 12:05:28,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 79 states have (on average 1.8481012658227849) internal successors, (146), 122 states have internal predecessors, (146), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) [2023-11-26 12:05:28,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 161 transitions. [2023-11-26 12:05:28,632 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 161 transitions. Word has length 21 [2023-11-26 12:05:28,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:28,633 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 161 transitions. [2023-11-26 12:05:28,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 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) [2023-11-26 12:05:28,633 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 161 transitions. [2023-11-26 12:05:28,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-26 12:05:28,634 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:28,635 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:28,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 (9)] Ended with exit code 0 [2023-11-26 12:05:28,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:28,838 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2023-11-26 12:05:28,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:28,838 INFO L85 PathProgramCache]: Analyzing trace with hash -883799312, now seen corresponding path program 1 times [2023-11-26 12:05:28,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:05:28,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [132344770] [2023-11-26 12:05:28,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:28,838 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 [2023-11-26 12:05:28,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:05:28,839 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 12:05:28,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 (10)] Waiting until timeout for monitored process [2023-11-26 12:05:28,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:28,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-26 12:05:28,946 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:28,966 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 [2023-11-26 12:05:28,977 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 [2023-11-26 12:05:29,167 WARN L876 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#res.base|)) (= (store |c_old(#length)| |ldv_malloc_#res.base| (select |c_#length| |ldv_malloc_#res.base|)) |c_#length|))) is different from true [2023-11-26 12:05:29,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:05:29,207 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 [2023-11-26 12:05:29,221 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-26 12:05:29,221 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 [2023-11-26 12:05:29,249 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2023-11-26 12:05:29,249 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:05:33,564 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:05:33,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [132344770] [2023-11-26 12:05:33,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [132344770] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:05:33,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [326453860] [2023-11-26 12:05:33,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:33,565 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-26 12:05:33,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/cvc4 [2023-11-26 12:05:33,580 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-26 12:05:33,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-11-26 12:05:33,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:33,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-26 12:05:33,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:33,779 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 [2023-11-26 12:05:33,794 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 [2023-11-26 12:05:33,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:05:33,943 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 [2023-11-26 12:05:33,969 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-26 12:05:33,970 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 [2023-11-26 12:05:33,973 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2023-11-26 12:05:33,973 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:05:34,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [326453860] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:05:34,204 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 12:05:34,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2023-11-26 12:05:34,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956171178] [2023-11-26 12:05:34,204 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 12:05:34,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 12:05:34,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:05:34,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 12:05:34,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=69, Unknown=2, NotChecked=16, Total=110 [2023-11-26 12:05:34,206 INFO L87 Difference]: Start difference. First operand 133 states and 161 transitions. Second operand has 9 states, 8 states have (on average 1.875) internal successors, (15), 7 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) [2023-11-26 12:05:36,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:36,316 INFO L93 Difference]: Finished difference Result 246 states and 286 transitions. [2023-11-26 12:05:36,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 12:05:36,318 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.875) internal successors, (15), 7 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 21 [2023-11-26 12:05:36,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:36,320 INFO L225 Difference]: With dead ends: 246 [2023-11-26 12:05:36,320 INFO L226 Difference]: Without dead ends: 246 [2023-11-26 12:05:36,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=31, Invalid=103, Unknown=2, NotChecked=20, Total=156 [2023-11-26 12:05:36,322 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 207 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 254 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:36,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 575 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 690 Invalid, 0 Unknown, 254 Unchecked, 2.0s Time] [2023-11-26 12:05:36,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2023-11-26 12:05:36,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 185. [2023-11-26 12:05:36,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 129 states have (on average 1.8992248062015504) internal successors, (245), 172 states have internal predecessors, (245), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (11), 9 states have call predecessors, (11), 8 states have call successors, (11) [2023-11-26 12:05:36,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 264 transitions. [2023-11-26 12:05:36,333 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 264 transitions. Word has length 21 [2023-11-26 12:05:36,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:36,334 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 264 transitions. [2023-11-26 12:05:36,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.875) internal successors, (15), 7 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) [2023-11-26 12:05:36,334 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 264 transitions. [2023-11-26 12:05:36,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-26 12:05:36,335 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:36,336 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:36,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2023-11-26 12:05:36,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 (10)] Forceful destruction successful, exit code 0 [2023-11-26 12:05:36,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:36,739 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2023-11-26 12:05:36,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:36,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1094140191, now seen corresponding path program 1 times [2023-11-26 12:05:36,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:05:36,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1231052792] [2023-11-26 12:05:36,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:36,740 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 [2023-11-26 12:05:36,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:05:36,742 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 12:05:36,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 (12)] Waiting until timeout for monitored process [2023-11-26 12:05:36,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:36,826 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-26 12:05:36,828 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:37,026 WARN L876 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_entry_point_~hdev~0#1.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |ULTIMATE.start_entry_point_~hdev~0#1.base|)) (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |ULTIMATE.start_entry_point_~hdev~0#1.base| (_ bv0 1))))) is different from true [2023-11-26 12:05:37,041 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:05:37,041 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:05:37,155 INFO L349 Elim1Store]: treesize reduction 30, result has 21.1 percent of original size [2023-11-26 12:05:37,156 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 [2023-11-26 12:05:41,366 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:05:41,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1231052792] [2023-11-26 12:05:41,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1231052792] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:05:41,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2093838888] [2023-11-26 12:05:41,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:41,367 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-26 12:05:41,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/cvc4 [2023-11-26 12:05:41,369 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-26 12:05:41,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-11-26 12:05:41,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:41,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-26 12:05:41,561 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:41,932 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:05:41,932 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:05:42,066 INFO L349 Elim1Store]: treesize reduction 30, result has 21.1 percent of original size [2023-11-26 12:05:42,067 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 [2023-11-26 12:05:54,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2093838888] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:05:54,297 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 12:05:54,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2023-11-26 12:05:54,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855641133] [2023-11-26 12:05:54,297 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 12:05:54,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 12:05:54,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:05:54,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 12:05:54,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=86, Unknown=2, NotChecked=18, Total=132 [2023-11-26 12:05:54,300 INFO L87 Difference]: Start difference. First operand 185 states and 264 transitions. Second operand has 11 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 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) [2023-11-26 12:05:56,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:56,249 INFO L93 Difference]: Finished difference Result 249 states and 333 transitions. [2023-11-26 12:05:56,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 12:05:56,250 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 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 20 [2023-11-26 12:05:56,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:56,252 INFO L225 Difference]: With dead ends: 249 [2023-11-26 12:05:56,253 INFO L226 Difference]: Without dead ends: 244 [2023-11-26 12:05:56,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 52 SyntacticMatches, 7 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 16.5s TimeCoverageRelationStatistics Valid=33, Invalid=101, Unknown=2, NotChecked=20, Total=156 [2023-11-26 12:05:56,254 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 67 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 199 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:56,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 803 Invalid, 977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 772 Invalid, 0 Unknown, 199 Unchecked, 1.9s Time] [2023-11-26 12:05:56,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2023-11-26 12:05:56,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 182. [2023-11-26 12:05:56,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 126 states have (on average 1.9126984126984128) internal successors, (241), 169 states have internal predecessors, (241), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (11), 9 states have call predecessors, (11), 8 states have call successors, (11) [2023-11-26 12:05:56,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 260 transitions. [2023-11-26 12:05:56,264 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 260 transitions. Word has length 20 [2023-11-26 12:05:56,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:56,264 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 260 transitions. [2023-11-26 12:05:56,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 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) [2023-11-26 12:05:56,265 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 260 transitions. [2023-11-26 12:05:56,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-26 12:05:56,266 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:56,266 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:56,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 (12)] Forceful destruction successful, exit code 0 [2023-11-26 12:05:56,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2023-11-26 12:05:56,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/cvc4 --incremental --print-success --lang smt [2023-11-26 12:05:56,669 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2023-11-26 12:05:56,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:56,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1614216624, now seen corresponding path program 1 times [2023-11-26 12:05:56,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:05:56,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1803792497] [2023-11-26 12:05:56,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:56,670 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 [2023-11-26 12:05:56,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:05:56,672 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 12:05:56,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 (14)] Waiting until timeout for monitored process [2023-11-26 12:05:56,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:56,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 12:05:56,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:56,817 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:05:56,817 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:05:56,817 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:05:56,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1803792497] [2023-11-26 12:05:56,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1803792497] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:05:56,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:05:56,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:05:56,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762188700] [2023-11-26 12:05:56,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:05:56,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 12:05:56,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:05:56,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 12:05:56,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:05:56,819 INFO L87 Difference]: Start difference. First operand 182 states and 260 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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) [2023-11-26 12:05:57,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:57,133 INFO L93 Difference]: Finished difference Result 122 states and 143 transitions. [2023-11-26 12:05:57,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 12:05:57,134 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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 21 [2023-11-26 12:05:57,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:57,135 INFO L225 Difference]: With dead ends: 122 [2023-11-26 12:05:57,135 INFO L226 Difference]: Without dead ends: 120 [2023-11-26 12:05:57,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:05:57,136 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 0 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:57,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 382 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 12:05:57,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-11-26 12:05:57,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2023-11-26 12:05:57,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 73 states have (on average 1.7808219178082192) internal successors, (130), 111 states have internal predecessors, (130), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-26 12:05:57,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 141 transitions. [2023-11-26 12:05:57,144 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 141 transitions. Word has length 21 [2023-11-26 12:05:57,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:57,144 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 141 transitions. [2023-11-26 12:05:57,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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) [2023-11-26 12:05:57,145 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 141 transitions. [2023-11-26 12:05:57,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-26 12:05:57,146 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:57,146 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:57,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 (14)] Ended with exit code 0 [2023-11-26 12:05:57,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:57,349 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2023-11-26 12:05:57,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:57,349 INFO L85 PathProgramCache]: Analyzing trace with hash -52864524, now seen corresponding path program 1 times [2023-11-26 12:05:57,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:05:57,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1638670536] [2023-11-26 12:05:57,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:57,350 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 [2023-11-26 12:05:57,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:05:57,351 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 12:05:57,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 (15)] Waiting until timeout for monitored process [2023-11-26 12:05:57,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:57,455 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 12:05:57,457 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:57,514 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 [2023-11-26 12:05:57,545 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 [2023-11-26 12:05:57,563 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-26 12:05:57,563 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:05:57,564 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:05:57,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1638670536] [2023-11-26 12:05:57,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1638670536] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:05:57,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:05:57,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 12:05:57,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056238004] [2023-11-26 12:05:57,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:05:57,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:05:57,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:05:57,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:05:57,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:05:57,566 INFO L87 Difference]: Start difference. First operand 120 states and 141 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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) [2023-11-26 12:05:58,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:58,013 INFO L93 Difference]: Finished difference Result 127 states and 148 transitions. [2023-11-26 12:05:58,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:05:58,017 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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 25 [2023-11-26 12:05:58,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:58,018 INFO L225 Difference]: With dead ends: 127 [2023-11-26 12:05:58,018 INFO L226 Difference]: Without dead ends: 127 [2023-11-26 12:05:58,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:05:58,019 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 5 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:58,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 464 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-26 12:05:58,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2023-11-26 12:05:58,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 123. [2023-11-26 12:05:58,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 76 states have (on average 1.75) internal successors, (133), 113 states have internal predecessors, (133), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-26 12:05:58,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 144 transitions. [2023-11-26 12:05:58,026 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 144 transitions. Word has length 25 [2023-11-26 12:05:58,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:58,027 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 144 transitions. [2023-11-26 12:05:58,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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) [2023-11-26 12:05:58,027 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 144 transitions. [2023-11-26 12:05:58,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-26 12:05:58,028 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:58,028 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:58,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 (15)] Forceful destruction successful, exit code 0 [2023-11-26 12:05:58,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:58,235 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2023-11-26 12:05:58,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:58,236 INFO L85 PathProgramCache]: Analyzing trace with hash -52861771, now seen corresponding path program 1 times [2023-11-26 12:05:58,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:05:58,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [944524031] [2023-11-26 12:05:58,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:58,237 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 [2023-11-26 12:05:58,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:05:58,238 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 12:05:58,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 (16)] Waiting until timeout for monitored process [2023-11-26 12:05:58,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:58,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 12:05:58,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:58,341 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 [2023-11-26 12:05:58,386 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 [2023-11-26 12:05:58,417 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 [2023-11-26 12:05:58,435 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-26 12:05:58,435 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:05:58,436 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:05:58,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [944524031] [2023-11-26 12:05:58,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [944524031] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:05:58,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:05:58,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:05:58,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695942245] [2023-11-26 12:05:58,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:05:58,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:05:58,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:05:58,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:05:58,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:05:58,438 INFO L87 Difference]: Start difference. First operand 123 states and 144 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2023-11-26 12:05:58,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:58,964 INFO L93 Difference]: Finished difference Result 126 states and 147 transitions. [2023-11-26 12:05:58,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:05:58,965 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 25 [2023-11-26 12:05:58,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:58,966 INFO L225 Difference]: With dead ends: 126 [2023-11-26 12:05:58,966 INFO L226 Difference]: Without dead ends: 126 [2023-11-26 12:05:58,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:05:58,967 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 3 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:58,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 341 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-26 12:05:58,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-11-26 12:05:58,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 125. [2023-11-26 12:05:58,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 78 states have (on average 1.7435897435897436) internal successors, (136), 115 states have internal predecessors, (136), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-26 12:05:58,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 147 transitions. [2023-11-26 12:05:58,972 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 147 transitions. Word has length 25 [2023-11-26 12:05:58,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:58,972 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 147 transitions. [2023-11-26 12:05:58,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2023-11-26 12:05:58,973 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 147 transitions. [2023-11-26 12:05:58,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-26 12:05:58,973 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:58,974 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:58,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 (16)] Forceful destruction successful, exit code 0 [2023-11-26 12:05:59,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:59,177 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2023-11-26 12:05:59,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:59,178 INFO L85 PathProgramCache]: Analyzing trace with hash -52861770, now seen corresponding path program 1 times [2023-11-26 12:05:59,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:05:59,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [275090228] [2023-11-26 12:05:59,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:59,179 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 [2023-11-26 12:05:59,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:05:59,180 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 12:05:59,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 (17)] Waiting until timeout for monitored process [2023-11-26 12:05:59,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:59,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-26 12:05:59,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:59,287 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 [2023-11-26 12:05:59,347 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 [2023-11-26 12:05:59,358 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 [2023-11-26 12:05:59,422 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 [2023-11-26 12:05:59,457 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-26 12:05:59,457 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:05:59,457 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:05:59,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [275090228] [2023-11-26 12:05:59,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [275090228] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:05:59,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:05:59,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 12:05:59,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238625095] [2023-11-26 12:05:59,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:05:59,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 12:05:59,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:05:59,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 12:05:59,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:05:59,459 INFO L87 Difference]: Start difference. First operand 125 states and 147 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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) [2023-11-26 12:06:00,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:00,118 INFO L93 Difference]: Finished difference Result 125 states and 146 transitions. [2023-11-26 12:06:00,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 12:06:00,118 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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 25 [2023-11-26 12:06:00,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:00,120 INFO L225 Difference]: With dead ends: 125 [2023-11-26 12:06:00,120 INFO L226 Difference]: Without dead ends: 125 [2023-11-26 12:06:00,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-26 12:06:00,121 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 5 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:00,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 463 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-26 12:06:00,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2023-11-26 12:06:00,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2023-11-26 12:06:00,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 78 states have (on average 1.7307692307692308) internal successors, (135), 115 states have internal predecessors, (135), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-26 12:06:00,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 146 transitions. [2023-11-26 12:06:00,127 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 146 transitions. Word has length 25 [2023-11-26 12:06:00,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:00,127 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 146 transitions. [2023-11-26 12:06:00,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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) [2023-11-26 12:06:00,128 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 146 transitions. [2023-11-26 12:06:00,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-26 12:06:00,129 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:00,129 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:00,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 (17)] Forceful destruction successful, exit code 0 [2023-11-26 12:06:00,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:06:00,332 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2023-11-26 12:06:00,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:00,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1689945811, now seen corresponding path program 1 times [2023-11-26 12:06:00,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:06:00,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1903606084] [2023-11-26 12:06:00,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:00,333 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 [2023-11-26 12:06:00,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:06:00,334 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 12:06:00,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 (18)] Waiting until timeout for monitored process [2023-11-26 12:06:00,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:00,428 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 12:06:00,429 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:06:00,989 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 12:06:00,989 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:06:01,122 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-26 12:06:01,122 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:06:01,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1903606084] [2023-11-26 12:06:01,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1903606084] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:06:01,123 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 12:06:01,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 9 [2023-11-26 12:06:01,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432058667] [2023-11-26 12:06:01,124 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 12:06:01,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-26 12:06:01,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:06:01,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-26 12:06:01,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-26 12:06:01,125 INFO L87 Difference]: Start difference. First operand 125 states and 146 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 8 states have internal predecessors, (33), 5 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-26 12:06:02,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:02,286 INFO L93 Difference]: Finished difference Result 124 states and 144 transitions. [2023-11-26 12:06:02,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 12:06:02,287 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 8 states have internal predecessors, (33), 5 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) Word has length 25 [2023-11-26 12:06:02,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:02,289 INFO L225 Difference]: With dead ends: 124 [2023-11-26 12:06:02,289 INFO L226 Difference]: Without dead ends: 124 [2023-11-26 12:06:02,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-26 12:06:02,290 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 96 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:02,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 382 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-26 12:06:02,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-11-26 12:06:02,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2023-11-26 12:06:02,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 78 states have (on average 1.705128205128205) internal successors, (133), 114 states have internal predecessors, (133), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-26 12:06:02,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 144 transitions. [2023-11-26 12:06:02,299 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 144 transitions. Word has length 25 [2023-11-26 12:06:02,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:02,300 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 144 transitions. [2023-11-26 12:06:02,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 8 states have internal predecessors, (33), 5 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-26 12:06:02,301 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 144 transitions. [2023-11-26 12:06:02,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-26 12:06:02,302 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:02,302 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:02,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 (18)] Forceful destruction successful, exit code 0 [2023-11-26 12:06:02,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:06:02,505 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2023-11-26 12:06:02,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:02,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1689948564, now seen corresponding path program 1 times [2023-11-26 12:06:02,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:06:02,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1294066653] [2023-11-26 12:06:02,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:02,509 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 [2023-11-26 12:06:02,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:06:02,511 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 12:06:02,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 (19)] Waiting until timeout for monitored process [2023-11-26 12:06:02,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:02,619 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-26 12:06:02,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:06:02,670 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 [2023-11-26 12:06:02,686 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 [2023-11-26 12:06:02,746 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-26 12:06:02,747 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:06:02,747 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:06:02,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1294066653] [2023-11-26 12:06:02,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1294066653] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:02,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:02,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 12:06:02,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209039081] [2023-11-26 12:06:02,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:02,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:06:02,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:06:02,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:06:02,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:06:02,749 INFO L87 Difference]: Start difference. First operand 124 states and 144 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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) [2023-11-26 12:06:03,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:03,199 INFO L93 Difference]: Finished difference Result 125 states and 144 transitions. [2023-11-26 12:06:03,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:06:03,200 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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 25 [2023-11-26 12:06:03,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:03,202 INFO L225 Difference]: With dead ends: 125 [2023-11-26 12:06:03,202 INFO L226 Difference]: Without dead ends: 125 [2023-11-26 12:06:03,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:06:03,203 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 9 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:03,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 478 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-26 12:06:03,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2023-11-26 12:06:03,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 120. [2023-11-26 12:06:03,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 76 states have (on average 1.6842105263157894) internal successors, (128), 110 states have internal predecessors, (128), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-26 12:06:03,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 139 transitions. [2023-11-26 12:06:03,210 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 139 transitions. Word has length 25 [2023-11-26 12:06:03,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:03,210 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 139 transitions. [2023-11-26 12:06:03,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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) [2023-11-26 12:06:03,211 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 139 transitions. [2023-11-26 12:06:03,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-26 12:06:03,212 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:03,212 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:03,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 (19)] Forceful destruction successful, exit code 0 [2023-11-26 12:06:03,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:06:03,415 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_hid_set_drvdataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_hid_set_drvdataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2023-11-26 12:06:03,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:03,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1638709857, now seen corresponding path program 1 times [2023-11-26 12:06:03,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:06:03,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1556481278] [2023-11-26 12:06:03,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:03,416 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 [2023-11-26 12:06:03,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:06:03,418 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 12:06:03,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038df913-76f0-4101-b788-18541ff4891e/bin/uautomizer-verify-VRDe98Ueme/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 (20)] Waiting until timeout for monitored process [2023-11-26 12:06:03,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:03,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-26 12:06:03,575 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:06:03,594 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 [2023-11-26 12:06:03,607 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 [2023-11-26 12:06:03,817 WARN L876 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#res.base|)) (= (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|))) is different from true [2023-11-26 12:06:03,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:06:03,858 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 [2023-11-26 12:06:03,898 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2023-11-26 12:06:03,899 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 [2023-11-26 12:06:03,958 WARN L876 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#res.base|)) (= (store |c_old(#length)| |ldv_malloc_#res.base| (select |c_#length| |ldv_malloc_#res.base|)) |c_#length|))) is different from true [2023-11-26 12:06:03,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:06:03,989 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 [2023-11-26 12:06:04,004 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-26 12:06:04,005 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 [2023-11-26 12:06:04,082 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 6 not checked. [2023-11-26 12:06:04,082 INFO L327 TraceCheckSpWp]: Computing backward predicates...