./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 56ff1aa7a746f87b9c1b788d1f6729b885abef13666f4b3b25250b45ff5a6786 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:48:17,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:48:17,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:48:17,415 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:48:17,415 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:48:17,420 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:48:17,422 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:48:17,426 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:48:17,428 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:48:17,433 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:48:17,435 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:48:17,436 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:48:17,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:48:17,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:48:17,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:48:17,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:48:17,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:48:17,449 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:48:17,451 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:48:17,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:48:17,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:48:17,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:48:17,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:48:17,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:48:17,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:48:17,476 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:48:17,477 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:48:17,479 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:48:17,480 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:48:17,481 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:48:17,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:48:17,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:48:17,485 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:48:17,486 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:48:17,488 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:48:17,488 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:48:17,489 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:48:17,489 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:48:17,489 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:48:17,490 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:48:17,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:48:17,492 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:48:17,540 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:48:17,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:48:17,541 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:48:17,542 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:48:17,542 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:48:17,542 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:48:17,543 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:48:17,543 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:48:17,543 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:48:17,543 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:48:17,550 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:48:17,551 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:48:17,551 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:48:17,551 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:48:17,552 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:48:17,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:48:17,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:48:17,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:48:17,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:48:17,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:48:17,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:48:17,554 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:48:17,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:48:17,555 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:48:17,555 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:48:17,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:48:17,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:48:17,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:48:17,556 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:48:17,557 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:48:17,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:48:17,558 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:48:17,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:48:17,559 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:48:17,559 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:48:17,559 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:48:17,559 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 56ff1aa7a746f87b9c1b788d1f6729b885abef13666f4b3b25250b45ff5a6786 [2021-11-07 01:48:17,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:48:17,837 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:48:17,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:48:17,841 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:48:17,842 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:48:17,842 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point.cil.out.i [2021-11-07 01:48:17,906 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8/data/2947ede2a/c97eec4379e147c8a5cfdbbc2c689430/FLAG11e46f635 [2021-11-07 01:48:18,778 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:48:18,778 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point.cil.out.i [2021-11-07 01:48:18,812 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8/data/2947ede2a/c97eec4379e147c8a5cfdbbc2c689430/FLAG11e46f635 [2021-11-07 01:48:18,851 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8/data/2947ede2a/c97eec4379e147c8a5cfdbbc2c689430 [2021-11-07 01:48:18,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:48:18,858 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:48:18,864 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:48:18,864 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:48:18,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:48:18,869 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:48:18" (1/1) ... [2021-11-07 01:48:18,871 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1009868e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:48:18, skipping insertion in model container [2021-11-07 01:48:18,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:48:18" (1/1) ... [2021-11-07 01:48:18,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:48:18,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:48:19,622 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point.cil.out.i[115668,115681] [2021-11-07 01:48:20,213 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:48:20,218 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:48:20,228 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:48:20,232 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:48:20,237 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:48:20,243 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:48:20,251 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:48:20,257 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:48:20,258 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:48:20,271 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:48:20,321 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:48:20,344 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 01:48:20,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@18396177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:48:20, skipping insertion in model container [2021-11-07 01:48:20,345 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:48:20,345 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:48:20,347 INFO L168 Benchmark]: Toolchain (without parser) took 1488.36 ms. Allocated memory was 109.1 MB in the beginning and 146.8 MB in the end (delta: 37.7 MB). Free memory was 69.4 MB in the beginning and 72.8 MB in the end (delta: -3.4 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:48:20,348 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 109.1 MB. Free memory is still 64.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:48:20,349 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1481.45 ms. Allocated memory was 109.1 MB in the beginning and 146.8 MB in the end (delta: 37.7 MB). Free memory was 69.1 MB in the beginning and 72.8 MB in the end (delta: -3.7 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:48:20,350 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 109.1 MB. Free memory is still 64.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1481.45 ms. Allocated memory was 109.1 MB in the beginning and 146.8 MB in the end (delta: 37.7 MB). Free memory was 69.1 MB in the beginning and 72.8 MB in the end (delta: -3.7 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 4215]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 56ff1aa7a746f87b9c1b788d1f6729b885abef13666f4b3b25250b45ff5a6786 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:48:22,657 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:48:22,661 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:48:22,722 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:48:22,722 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:48:22,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:48:22,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:48:22,734 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:48:22,737 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:48:22,749 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:48:22,750 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:48:22,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:48:22,753 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:48:22,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:48:22,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:48:22,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:48:22,766 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:48:22,767 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:48:22,770 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:48:22,783 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:48:22,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:48:22,787 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:48:22,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:48:22,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:48:22,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:48:22,795 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:48:22,795 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:48:22,797 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:48:22,797 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:48:22,799 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:48:22,800 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:48:22,801 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:48:22,802 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:48:22,803 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:48:22,804 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:48:22,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:48:22,805 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:48:22,806 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:48:22,806 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:48:22,807 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:48:22,808 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:48:22,809 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:48:22,838 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:48:22,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:48:22,839 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:48:22,840 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:48:22,840 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:48:22,840 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:48:22,841 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:48:22,841 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:48:22,841 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:48:22,842 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:48:22,842 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:48:22,843 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:48:22,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:48:22,843 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:48:22,843 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:48:22,844 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:48:22,844 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:48:22,844 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:48:22,844 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:48:22,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:48:22,847 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:48:22,848 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:48:22,848 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:48:22,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:48:22,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:48:22,849 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:48:22,849 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:48:22,849 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:48:22,850 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:48:22,850 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:48:22,851 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:48:22,851 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:48:22,851 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 56ff1aa7a746f87b9c1b788d1f6729b885abef13666f4b3b25250b45ff5a6786 [2021-11-07 01:48:23,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:48:23,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:48:23,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:48:23,305 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:48:23,306 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:48:23,307 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point.cil.out.i [2021-11-07 01:48:23,377 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8/data/f15ebd0ea/a40519d2259946daa0c5688ce21a3ada/FLAGa85399d21 [2021-11-07 01:48:24,497 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:48:24,499 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point.cil.out.i [2021-11-07 01:48:24,554 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8/data/f15ebd0ea/a40519d2259946daa0c5688ce21a3ada/FLAGa85399d21 [2021-11-07 01:48:24,896 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8/data/f15ebd0ea/a40519d2259946daa0c5688ce21a3ada [2021-11-07 01:48:24,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:48:24,901 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:48:24,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:48:24,904 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:48:24,909 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:48:24,910 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:48:24" (1/1) ... [2021-11-07 01:48:24,913 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4267720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:48:24, skipping insertion in model container [2021-11-07 01:48:24,913 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:48:24" (1/1) ... [2021-11-07 01:48:24,943 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:48:25,056 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:48:25,793 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point.cil.out.i[115668,115681] [2021-11-07 01:48:26,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:48:26,738 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:48:26,847 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:48:26,933 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point.cil.out.i[115668,115681] [2021-11-07 01:48:27,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:48:27,113 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:48:27,257 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point.cil.out.i[115668,115681] [2021-11-07 01:48:27,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:48:27,534 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:48:27,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:48:27 WrapperNode [2021-11-07 01:48:27,535 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:48:27,536 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:48:27,536 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:48:27,536 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:48:27,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:48:27" (1/1) ... [2021-11-07 01:48:27,663 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:48:27" (1/1) ... [2021-11-07 01:48:28,394 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:48:28,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:48:28,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:48:28,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:48:28,405 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:48:27" (1/1) ... [2021-11-07 01:48:28,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:48:27" (1/1) ... [2021-11-07 01:48:28,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:48:27" (1/1) ... [2021-11-07 01:48:28,586 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:48:27" (1/1) ... [2021-11-07 01:48:29,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:48:27" (1/1) ... [2021-11-07 01:48:29,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:48:27" (1/1) ... [2021-11-07 01:48:29,329 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:48:27" (1/1) ... [2021-11-07 01:48:29,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:48:29,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:48:29,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:48:29,545 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:48:29,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:48:27" (1/1) ... [2021-11-07 01:48:29,554 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:48:29,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:48:29,579 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:48:29,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:48:29,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:48:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:48:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 01:48:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 01:48:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-07 01:48:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 01:48:29,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 01:48:29,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-07 01:48:29,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-07 01:48:29,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 01:48:29,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:48:29,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:48:29,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:48:29,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-07 01:48:29,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-07 01:48:29,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-07 01:48:29,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:48:29,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:48:29,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 01:48:29,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:48:29,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 01:48:29,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:48:29,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:48:29,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:48:29,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:48:29,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-07 01:48:29,632 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-07 01:48:29,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:48:29,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:57:23,069 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:57:23,070 INFO L299 CfgBuilder]: Removed 3249 assume(true) statements. [2021-11-07 01:57:23,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:57:23 BoogieIcfgContainer [2021-11-07 01:57:23,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:57:23,081 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:57:23,082 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:57:23,085 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:57:23,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:48:24" (1/3) ... [2021-11-07 01:57:23,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30c15c5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:57:23, skipping insertion in model container [2021-11-07 01:57:23,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:48:27" (2/3) ... [2021-11-07 01:57:23,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30c15c5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:57:23, skipping insertion in model container [2021-11-07 01:57:23,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:57:23" (3/3) ... [2021-11-07 01:57:23,090 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point.cil.out.i [2021-11-07 01:57:23,096 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:57:23,097 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-11-07 01:57:23,183 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:57:23,190 INFO L339 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=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:57:23,191 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-07 01:57:23,300 INFO L276 IsEmpty]: Start isEmpty. Operand has 4749 states, 4740 states have (on average 1.5126582278481013) internal successors, (7170), 4748 states have internal predecessors, (7170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:57:23,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 01:57:23,323 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:57:23,324 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:57:23,324 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 01:57:23,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:57:23,332 INFO L85 PathProgramCache]: Analyzing trace with hash -2037521194, now seen corresponding path program 1 times [2021-11-07 01:57:23,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:57:23,357 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1615080528] [2021-11-07 01:57:23,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:57:23,359 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:57:23,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:57:23,361 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:57:23,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:57:25,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:57:25,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 1094 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:57:25,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:57:25,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:57:25,799 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:57:26,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:57:26,059 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:57:26,059 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1615080528] [2021-11-07 01:57:26,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1615080528] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:57:26,060 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:57:26,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:57:26,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152408711] [2021-11-07 01:57:26,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:57:26,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:57:26,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:57:26,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:57:26,096 INFO L87 Difference]: Start difference. First operand has 4749 states, 4740 states have (on average 1.5126582278481013) internal successors, (7170), 4748 states have internal predecessors, (7170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:57:26,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:57:26,709 INFO L93 Difference]: Finished difference Result 10237 states and 15425 transitions. [2021-11-07 01:57:26,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:57:26,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-07 01:57:26,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:57:26,755 INFO L225 Difference]: With dead ends: 10237 [2021-11-07 01:57:26,756 INFO L226 Difference]: Without dead ends: 5450 [2021-11-07 01:57:26,768 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:57:26,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5450 states. [2021-11-07 01:57:26,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5450 to 5428. [2021-11-07 01:57:26,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5428 states, 5420 states have (on average 1.5) internal successors, (8130), 5427 states have internal predecessors, (8130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:57:26,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5428 states to 5428 states and 8130 transitions. [2021-11-07 01:57:26,992 INFO L78 Accepts]: Start accepts. Automaton has 5428 states and 8130 transitions. Word has length 33 [2021-11-07 01:57:26,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:57:26,993 INFO L470 AbstractCegarLoop]: Abstraction has 5428 states and 8130 transitions. [2021-11-07 01:57:26,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:57:26,994 INFO L276 IsEmpty]: Start isEmpty. Operand 5428 states and 8130 transitions. [2021-11-07 01:57:26,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-07 01:57:26,999 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:57:27,000 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:57:27,034 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-07 01:57:27,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:57:27,214 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 01:57:27,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:57:27,214 INFO L85 PathProgramCache]: Analyzing trace with hash -532029243, now seen corresponding path program 1 times [2021-11-07 01:57:27,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:57:27,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1857688939] [2021-11-07 01:57:27,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:57:27,218 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:57:27,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:57:27,219 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:57:27,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f16aec-b953-46a6-9400-6f41c35ce761/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:57:43,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:57:44,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 1194 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-07 01:57:44,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:57:45,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2706 treesize of output 2058 [2021-11-07 01:57:45,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2058 treesize of output 1410 [2021-11-07 01:57:45,346 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:57:45,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1410 treesize of output 1190 [2021-11-07 01:57:45,452 INFO L354 Elim1Store]: treesize reduction 117, result has 0.8 percent of original size [2021-11-07 01:57:45,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1182 treesize of output 345 [2021-11-07 01:57:46,507 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 01:57:46,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:57:47,719 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 01:57:47,720 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:57:47,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1857688939] [2021-11-07 01:57:47,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1857688939] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:57:47,720 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:57:47,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-07 01:57:47,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881625180] [2021-11-07 01:57:47,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 01:57:47,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:57:47,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 01:57:47,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:57:47,723 INFO L87 Difference]: Start difference. First operand 5428 states and 8130 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)