./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.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_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/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_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/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_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/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 5ed3d5c0aeaf7c032926a2347a2cd8f6e5404a73032a43856ee00d265d816a1f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:30:48,374 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:30:48,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:30:48,438 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:30:48,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:30:48,443 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:30:48,445 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:30:48,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:30:48,451 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:30:48,456 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:30:48,457 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:30:48,459 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:30:48,459 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:30:48,462 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:30:48,464 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:30:48,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:30:48,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:30:48,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:30:48,473 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:30:48,483 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:30:48,485 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:30:48,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:30:48,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:30:48,493 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:30:48,502 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:30:48,502 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:30:48,502 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:30:48,505 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:30:48,505 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:30:48,506 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:30:48,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:30:48,508 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:30:48,509 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:30:48,510 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:30:48,512 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:30:48,512 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:30:48,513 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:30:48,513 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:30:48,513 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:30:48,514 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:30:48,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:30:48,515 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:30:48,558 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:30:48,558 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:30:48,559 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:30:48,560 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:30:48,560 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:30:48,560 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:30:48,560 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:30:48,561 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:30:48,567 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:30:48,567 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:30:48,568 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:30:48,568 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:30:48,569 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:30:48,569 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:30:48,569 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:30:48,570 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:30:48,570 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:30:48,570 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:30:48,571 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:30:48,571 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:30:48,571 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:30:48,571 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:30:48,571 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:30:48,572 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:30:48,572 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:30:48,572 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:30:48,572 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:30:48,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:30:48,573 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:30:48,574 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:30:48,575 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:30:48,575 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:30:48,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:30:48,575 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:30:48,576 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:30:48,576 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:30:48,576 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_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ed3d5c0aeaf7c032926a2347a2cd8f6e5404a73032a43856ee00d265d816a1f [2021-11-07 01:30:48,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:30:48,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:30:48,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:30:48,935 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:30:48,940 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:30:48,941 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-07 01:30:49,011 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/data/81977ac60/a1ca08529d714ca58119d38a39b0b11c/FLAG2396b1d0e [2021-11-07 01:30:50,092 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:30:50,093 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-07 01:30:50,156 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/data/81977ac60/a1ca08529d714ca58119d38a39b0b11c/FLAG2396b1d0e [2021-11-07 01:30:50,421 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/data/81977ac60/a1ca08529d714ca58119d38a39b0b11c [2021-11-07 01:30:50,422 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:30:50,424 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:30:50,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:30:50,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:30:50,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:30:50,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:30:50" (1/1) ... [2021-11-07 01:30:50,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eb52426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:30:50, skipping insertion in model container [2021-11-07 01:30:50,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:30:50" (1/1) ... [2021-11-07 01:30:50,437 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:30:50,586 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:30:52,233 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 01:30:52,235 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 01:30:53,113 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_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310122,310135] [2021-11-07 01:30:53,116 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_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310267,310280] [2021-11-07 01:30:53,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:30:53,199 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 01:30:53,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@62c4a1e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:30:53, skipping insertion in model container [2021-11-07 01:30:53,199 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:30:53,200 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:30:53,202 INFO L168 Benchmark]: Toolchain (without parser) took 2777.11 ms. Allocated memory was 132.1 MB in the beginning and 186.6 MB in the end (delta: 54.5 MB). Free memory was 105.5 MB in the beginning and 136.6 MB in the end (delta: -31.1 MB). Peak memory consumption was 62.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:30:53,203 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 92.3 MB. Free memory was 71.0 MB in the beginning and 70.9 MB in the end (delta: 61.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:30:53,204 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2774.92 ms. Allocated memory was 132.1 MB in the beginning and 186.6 MB in the end (delta: 54.5 MB). Free memory was 105.1 MB in the beginning and 136.6 MB in the end (delta: -31.5 MB). Peak memory consumption was 62.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:30:53,206 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 92.3 MB. Free memory was 71.0 MB in the beginning and 70.9 MB in the end (delta: 61.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2774.92 ms. Allocated memory was 132.1 MB in the beginning and 186.6 MB in the end (delta: 54.5 MB). Free memory was 105.1 MB in the beginning and 136.6 MB in the end (delta: -31.5 MB). Peak memory consumption was 62.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6095]: 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_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/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_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/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_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/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 5ed3d5c0aeaf7c032926a2347a2cd8f6e5404a73032a43856ee00d265d816a1f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:30:55,493 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:30:55,495 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:30:55,544 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:30:55,545 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:30:55,551 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:30:55,553 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:30:55,561 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:30:55,564 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:30:55,575 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:30:55,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:30:55,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:30:55,578 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:30:55,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:30:55,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:30:55,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:30:55,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:30:55,591 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:30:55,593 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:30:55,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:30:55,602 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:30:55,603 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:30:55,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:30:55,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:30:55,614 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:30:55,615 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:30:55,615 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:30:55,617 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:30:55,617 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:30:55,618 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:30:55,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:30:55,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:30:55,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:30:55,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:30:55,624 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:30:55,625 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:30:55,641 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:30:55,641 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:30:55,641 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:30:55,643 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:30:55,644 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:30:55,649 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:30:55,695 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:30:55,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:30:55,697 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:30:55,697 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:30:55,697 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:30:55,698 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:30:55,698 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:30:55,698 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:30:55,699 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:30:55,701 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:30:55,702 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:30:55,702 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:30:55,702 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:30:55,702 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:30:55,703 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:30:55,703 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:30:55,703 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:30:55,703 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:30:55,704 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:30:55,704 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:30:55,704 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:30:55,704 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:30:55,705 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:30:55,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:30:55,705 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:30:55,705 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:30:55,706 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:30:55,706 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:30:55,706 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:30:55,706 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:30:55,706 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:30:55,707 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:30:55,707 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_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ed3d5c0aeaf7c032926a2347a2cd8f6e5404a73032a43856ee00d265d816a1f [2021-11-07 01:30:56,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:30:56,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:30:56,168 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:30:56,169 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:30:56,170 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:30:56,171 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-07 01:30:56,250 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/data/afdf6a774/a3eeebfe2c12450ba58ec7416c5dbeef/FLAGe9f24f1e4 [2021-11-07 01:30:57,234 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:30:57,236 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-07 01:30:57,301 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/data/afdf6a774/a3eeebfe2c12450ba58ec7416c5dbeef/FLAGe9f24f1e4 [2021-11-07 01:30:57,651 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/data/afdf6a774/a3eeebfe2c12450ba58ec7416c5dbeef [2021-11-07 01:30:57,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:30:57,655 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:30:57,656 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:30:57,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:30:57,660 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:30:57,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:30:57" (1/1) ... [2021-11-07 01:30:57,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a96dfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:30:57, skipping insertion in model container [2021-11-07 01:30:57,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:30:57" (1/1) ... [2021-11-07 01:30:57,694 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:30:57,824 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:31:00,418 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_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310122,310135] [2021-11-07 01:31:00,421 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_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310267,310280] [2021-11-07 01:31:00,440 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:31:00,508 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:31:00,590 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:31:00,964 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_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310122,310135] [2021-11-07 01:31:00,965 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_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310267,310280] [2021-11-07 01:31:00,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:31:01,000 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:31:01,462 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_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310122,310135] [2021-11-07 01:31:01,463 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_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310267,310280] [2021-11-07 01:31:01,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:31:01,697 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:31:01,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:01 WrapperNode [2021-11-07 01:31:01,698 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:31:01,699 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:31:01,699 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:31:01,699 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:31:01,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:01" (1/1) ... [2021-11-07 01:31:01,822 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:01" (1/1) ... [2021-11-07 01:31:03,152 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:31:03,153 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:31:03,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:31:03,153 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:31:03,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:01" (1/1) ... [2021-11-07 01:31:03,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:01" (1/1) ... [2021-11-07 01:31:03,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:01" (1/1) ... [2021-11-07 01:31:03,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:01" (1/1) ... [2021-11-07 01:31:03,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:01" (1/1) ... [2021-11-07 01:31:04,053 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:01" (1/1) ... [2021-11-07 01:31:04,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:01" (1/1) ... [2021-11-07 01:31:04,479 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:31:04,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:31:04,482 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:31:04,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:31:04,483 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:01" (1/1) ... [2021-11-07 01:31:04,490 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:31:04,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:31:04,513 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:31:04,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:31:04,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:31:04,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:31:04,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:31:04,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:31:04,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:31:04,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:31:04,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-07 01:31:04,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-07 01:31:04,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-07 01:31:04,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-07 01:31:04,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:31:04,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:31:04,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:31:04,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:31:04,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 01:31:04,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 01:31:04,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-07 01:31:04,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 01:31:04,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:31:04,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:31:04,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:31:04,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:31:04,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 01:31:04,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 01:31:04,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:31:04,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 01:31:04,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-07 01:31:04,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-07 01:31:04,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 01:34:19,207 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0bv32; [2021-11-07 01:34:19,207 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0bv32; [2021-11-07 01:34:19,207 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0bv32; [2021-11-07 01:34:19,208 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0bv32; [2021-11-07 01:34:19,210 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 01:34:19,210 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0bv32; [2021-11-07 01:34:19,263 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:34:19,264 INFO L299 CfgBuilder]: Removed 10504 assume(true) statements. [2021-11-07 01:34:19,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:34:19 BoogieIcfgContainer [2021-11-07 01:34:19,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:34:19,274 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:34:19,274 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:34:19,277 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:34:19,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:30:57" (1/3) ... [2021-11-07 01:34:19,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64e5f502 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:34:19, skipping insertion in model container [2021-11-07 01:34:19,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:01" (2/3) ... [2021-11-07 01:34:19,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64e5f502 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:34:19, skipping insertion in model container [2021-11-07 01:34:19,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:34:19" (3/3) ... [2021-11-07 01:34:19,280 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-07 01:34:19,285 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:34:19,286 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2021-11-07 01:34:19,356 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:34:19,361 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 01:34:19,361 INFO L340 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2021-11-07 01:34:19,461 INFO L276 IsEmpty]: Start isEmpty. Operand has 6745 states, 6733 states have (on average 1.2137234516560225) internal successors, (8172), 6744 states have internal predecessors, (8172), 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 01:34:19,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-07 01:34:19,482 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:34:19,482 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, 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 01:34:19,483 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-07 01:34:19,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:34:19,488 INFO L85 PathProgramCache]: Analyzing trace with hash -767304460, now seen corresponding path program 1 times [2021-11-07 01:34:19,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:34:19,508 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1250676589] [2021-11-07 01:34:19,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:19,509 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:34:19,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:34:19,513 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:34:19,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:34:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:22,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 1449 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:34:22,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:22,708 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 01:34:22,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:22,957 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 01:34:22,958 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:34:22,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1250676589] [2021-11-07 01:34:22,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1250676589] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:34:22,959 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:34:22,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:34:22,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953024279] [2021-11-07 01:34:22,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:34:22,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:34:22,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:34:22,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:34:22,996 INFO L87 Difference]: Start difference. First operand has 6745 states, 6733 states have (on average 1.2137234516560225) internal successors, (8172), 6744 states have internal predecessors, (8172), 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 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 01:34:26,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:34:26,596 INFO L93 Difference]: Finished difference Result 25899 states and 31245 transitions. [2021-11-07 01:34:26,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:34:26,598 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 64 [2021-11-07 01:34:26,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:34:26,733 INFO L225 Difference]: With dead ends: 25899 [2021-11-07 01:34:26,733 INFO L226 Difference]: Without dead ends: 18735 [2021-11-07 01:34:26,762 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:34:26,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18735 states. [2021-11-07 01:34:27,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18735 to 18079. [2021-11-07 01:34:27,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18079 states, 18067 states have (on average 1.1916200808103172) internal successors, (21529), 18078 states have internal predecessors, (21529), 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 01:34:27,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18079 states to 18079 states and 21529 transitions. [2021-11-07 01:34:27,617 INFO L78 Accepts]: Start accepts. Automaton has 18079 states and 21529 transitions. Word has length 64 [2021-11-07 01:34:27,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:34:27,620 INFO L470 AbstractCegarLoop]: Abstraction has 18079 states and 21529 transitions. [2021-11-07 01:34:27,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 01:34:27,621 INFO L276 IsEmpty]: Start isEmpty. Operand 18079 states and 21529 transitions. [2021-11-07 01:34:27,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-07 01:34:27,627 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:34:27,628 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, 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 01:34:27,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:34:27,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:34:27,829 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-07 01:34:27,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:34:27,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1484214665, now seen corresponding path program 1 times [2021-11-07 01:34:27,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:34:27,832 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1455138876] [2021-11-07 01:34:27,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:27,833 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:34:27,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:34:27,835 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:34:27,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:34:30,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:30,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 1480 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:34:30,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:31,164 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 01:34:31,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:31,441 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 01:34:31,441 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:34:31,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1455138876] [2021-11-07 01:34:31,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1455138876] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:34:31,442 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:34:31,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:34:31,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134024127] [2021-11-07 01:34:31,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:34:31,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:34:31,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:34:31,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:34:31,449 INFO L87 Difference]: Start difference. First operand 18079 states and 21529 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 01:34:35,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:34:35,973 INFO L93 Difference]: Finished difference Result 47507 states and 56917 transitions. [2021-11-07 01:34:35,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:34:35,975 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 70 [2021-11-07 01:34:35,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:34:36,108 INFO L225 Difference]: With dead ends: 47507 [2021-11-07 01:34:36,108 INFO L226 Difference]: Without dead ends: 29504 [2021-11-07 01:34:36,145 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:34:36,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29504 states. [2021-11-07 01:34:37,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29504 to 29460. [2021-11-07 01:34:37,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29460 states, 29448 states have (on average 1.2017114914425429) internal successors, (35388), 29459 states have internal predecessors, (35388), 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 01:34:37,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29460 states to 29460 states and 35388 transitions. [2021-11-07 01:34:37,730 INFO L78 Accepts]: Start accepts. Automaton has 29460 states and 35388 transitions. Word has length 70 [2021-11-07 01:34:37,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:34:37,731 INFO L470 AbstractCegarLoop]: Abstraction has 29460 states and 35388 transitions. [2021-11-07 01:34:37,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 01:34:37,731 INFO L276 IsEmpty]: Start isEmpty. Operand 29460 states and 35388 transitions. [2021-11-07 01:34:37,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-07 01:34:37,733 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:34:37,733 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, 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 01:34:37,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:34:37,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:34:37,948 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-07 01:34:37,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:34:37,949 INFO L85 PathProgramCache]: Analyzing trace with hash -662246185, now seen corresponding path program 1 times [2021-11-07 01:34:37,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:34:37,952 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1317236317] [2021-11-07 01:34:37,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:37,953 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:34:37,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:34:37,956 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:34:37,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:34:41,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:41,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 1472 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:34:41,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:41,982 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 01:34:41,982 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:42,247 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 01:34:42,248 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:34:42,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1317236317] [2021-11-07 01:34:42,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1317236317] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:34:42,248 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:34:42,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:34:42,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24297660] [2021-11-07 01:34:42,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:34:42,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:34:42,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:34:42,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:34:42,250 INFO L87 Difference]: Start difference. First operand 29460 states and 35388 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 01:34:46,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:34:46,320 INFO L93 Difference]: Finished difference Result 84119 states and 100526 transitions. [2021-11-07 01:34:46,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:34:46,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 73 [2021-11-07 01:34:46,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:34:46,479 INFO L225 Difference]: With dead ends: 84119 [2021-11-07 01:34:46,479 INFO L226 Difference]: Without dead ends: 54735 [2021-11-07 01:34:46,533 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 143 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 01:34:46,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54735 states. [2021-11-07 01:34:49,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54735 to 54474. [2021-11-07 01:34:49,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54474 states, 54462 states have (on average 1.1916382064558775) internal successors, (64899), 54473 states have internal predecessors, (64899), 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 01:34:49,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54474 states to 54474 states and 64899 transitions. [2021-11-07 01:34:49,226 INFO L78 Accepts]: Start accepts. Automaton has 54474 states and 64899 transitions. Word has length 73 [2021-11-07 01:34:49,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:34:49,226 INFO L470 AbstractCegarLoop]: Abstraction has 54474 states and 64899 transitions. [2021-11-07 01:34:49,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 01:34:49,227 INFO L276 IsEmpty]: Start isEmpty. Operand 54474 states and 64899 transitions. [2021-11-07 01:34:49,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-07 01:34:49,234 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:34:49,235 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 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, 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 01:34:49,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:34:49,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:34:49,456 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-07 01:34:49,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:34:49,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1447834720, now seen corresponding path program 1 times [2021-11-07 01:34:49,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:34:49,459 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [965200994] [2021-11-07 01:34:49,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:49,460 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:34:49,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:34:49,461 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:34:49,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:34:52,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:52,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 1611 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:34:52,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:53,039 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 01:34:53,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:53,667 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 01:34:53,667 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:34:53,667 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [965200994] [2021-11-07 01:34:53,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [965200994] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:34:53,667 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:34:53,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:34:53,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202983549] [2021-11-07 01:34:53,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:34:53,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:34:53,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:34:53,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:34:53,670 INFO L87 Difference]: Start difference. First operand 54474 states and 64899 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 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 01:34:57,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:34:57,454 INFO L93 Difference]: Finished difference Result 163270 states and 194527 transitions. [2021-11-07 01:34:57,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:34:57,455 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 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 124 [2021-11-07 01:34:57,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:34:57,824 INFO L225 Difference]: With dead ends: 163270 [2021-11-07 01:34:57,825 INFO L226 Difference]: Without dead ends: 108872 [2021-11-07 01:34:57,971 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 245 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 01:34:58,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108872 states. [2021-11-07 01:35:02,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108872 to 108848. [2021-11-07 01:35:02,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108848 states, 108836 states have (on average 1.187070454628983) internal successors, (129196), 108847 states have internal predecessors, (129196), 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 01:35:03,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108848 states to 108848 states and 129196 transitions. [2021-11-07 01:35:03,012 INFO L78 Accepts]: Start accepts. Automaton has 108848 states and 129196 transitions. Word has length 124 [2021-11-07 01:35:03,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:35:03,013 INFO L470 AbstractCegarLoop]: Abstraction has 108848 states and 129196 transitions. [2021-11-07 01:35:03,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 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 01:35:03,013 INFO L276 IsEmpty]: Start isEmpty. Operand 108848 states and 129196 transitions. [2021-11-07 01:35:03,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-07 01:35:03,029 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:35:03,029 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 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, 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 01:35:03,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:35:03,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:35:03,244 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-07 01:35:03,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:35:03,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1207594974, now seen corresponding path program 1 times [2021-11-07 01:35:03,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:35:03,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [925373771] [2021-11-07 01:35:03,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:35:03,248 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:35:03,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:35:03,249 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:35:03,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5dd362b-6055-4372-bbaf-a4dabd01f5a4/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:35:06,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:35:06,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 1611 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:35:06,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:35:06,923 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 01:35:06,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:35:07,555 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 01:35:07,555 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:35:07,555 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [925373771] [2021-11-07 01:35:07,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [925373771] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:35:07,555 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:35:07,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:35:07,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088567842] [2021-11-07 01:35:07,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:35:07,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:35:07,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:35:07,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:35:07,557 INFO L87 Difference]: Start difference. First operand 108848 states and 129196 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 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 01:35:12,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:35:12,226 INFO L93 Difference]: Finished difference Result 217620 states and 258307 transitions. [2021-11-07 01:35:12,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:35:12,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 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 124 [2021-11-07 01:35:12,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:35:12,470 INFO L225 Difference]: With dead ends: 217620 [2021-11-07 01:35:12,470 INFO L226 Difference]: Without dead ends: 108848 [2021-11-07 01:35:12,590 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 245 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 01:35:12,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108848 states.