./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 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/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_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH --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-9ad7fb2 [2021-11-03 03:52:52,239 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:52:52,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:52:52,279 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:52:52,280 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:52:52,281 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:52:52,283 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:52:52,286 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:52:52,289 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:52:52,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:52:52,292 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:52:52,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:52:52,295 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:52:52,297 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:52:52,299 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:52:52,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:52:52,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:52:52,304 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:52:52,307 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:52:52,310 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:52:52,314 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:52:52,316 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:52:52,318 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:52:52,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:52:52,324 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:52:52,325 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:52:52,326 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:52:52,327 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:52:52,328 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:52:52,329 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:52:52,330 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:52:52,331 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:52:52,333 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:52:52,334 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:52:52,336 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:52:52,336 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:52:52,337 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:52:52,338 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:52:52,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:52:52,340 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:52:52,341 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:52:52,342 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 03:52:52,373 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:52:52,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:52:52,375 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:52:52,375 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:52:52,376 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:52:52,376 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:52:52,376 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 03:52:52,377 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:52:52,377 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:52:52,377 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 03:52:52,378 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 03:52:52,378 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:52:52,379 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 03:52:52,379 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 03:52:52,379 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 03:52:52,380 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:52:52,381 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 03:52:52,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:52:52,381 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:52:52,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:52:52,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:52:52,382 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:52:52,382 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:52:52,383 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:52:52,383 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:52:52,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:52:52,384 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:52:52,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:52:52,384 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:52:52,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:52:52,385 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:52:52,385 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 03:52:52,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 03:52:52,386 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:52:52,386 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:52:52,386 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:52:52,387 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_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ed3d5c0aeaf7c032926a2347a2cd8f6e5404a73032a43856ee00d265d816a1f [2021-11-03 03:52:52,687 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:52:52,711 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:52:52,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:52:52,716 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:52:52,717 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:52:52,718 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-03 03:52:52,794 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/data/d36c115f4/0d765cd4358d4489befe13cba6090688/FLAGc67808627 [2021-11-03 03:52:53,864 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:52:53,868 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-03 03:52:53,927 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/data/d36c115f4/0d765cd4358d4489befe13cba6090688/FLAGc67808627 [2021-11-03 03:52:54,219 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/data/d36c115f4/0d765cd4358d4489befe13cba6090688 [2021-11-03 03:52:54,222 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:52:54,224 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:52:54,226 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:52:54,226 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:52:54,230 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:52:54,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:52:54" (1/1) ... [2021-11-03 03:52:54,232 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@256acfad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:54, skipping insertion in model container [2021-11-03 03:52:54,232 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:52:54" (1/1) ... [2021-11-03 03:52:54,240 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:52:54,432 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:52:56,468 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 03:52:56,470 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 03:52:57,432 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_a9b765d0-e17b-49cc-9add-49de36349505/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310122,310135] [2021-11-03 03:52:57,435 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_a9b765d0-e17b-49cc-9add-49de36349505/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310267,310280] [2021-11-03 03:52:57,456 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:52:57,524 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) [2021-11-03 03:52:57,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@31e2b71c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:52:57, skipping insertion in model container [2021-11-03 03:52:57,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:52:57,525 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 03:52:57,528 INFO L168 Benchmark]: Toolchain (without parser) took 3302.66 ms. Allocated memory was 98.6 MB in the beginning and 125.8 MB in the end (delta: 27.3 MB). Free memory was 53.7 MB in the beginning and 76.7 MB in the end (delta: -23.0 MB). Peak memory consumption was 40.3 MB. Max. memory is 16.1 GB. [2021-11-03 03:52:57,529 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 98.6 MB. Free memory is still 54.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:52:57,530 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3299.62 ms. Allocated memory was 98.6 MB in the beginning and 125.8 MB in the end (delta: 27.3 MB). Free memory was 53.5 MB in the beginning and 76.7 MB in the end (delta: -23.2 MB). Peak memory consumption was 40.3 MB. Max. memory is 16.1 GB. [2021-11-03 03:52:57,531 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 98.6 MB. Free memory is still 54.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3299.62 ms. Allocated memory was 98.6 MB in the beginning and 125.8 MB in the end (delta: 27.3 MB). Free memory was 53.5 MB in the beginning and 76.7 MB in the end (delta: -23.2 MB). Peak memory consumption was 40.3 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_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/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_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH --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-9ad7fb2 [2021-11-03 03:53:00,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:53:00,094 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:53:00,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:53:00,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:53:00,154 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:53:00,156 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:53:00,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:53:00,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:53:00,182 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:53:00,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:53:00,186 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:53:00,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:53:00,189 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:53:00,191 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:53:00,193 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:53:00,194 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:53:00,197 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:53:00,199 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:53:00,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:53:00,205 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:53:00,206 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:53:00,208 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:53:00,209 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:53:00,214 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:53:00,214 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:53:00,215 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:53:00,216 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:53:00,217 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:53:00,218 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:53:00,219 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:53:00,220 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:53:00,221 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:53:00,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:53:00,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:53:00,225 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:53:00,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:53:00,247 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:53:00,247 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:53:00,250 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:53:00,251 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:53:00,257 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 03:53:00,311 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:53:00,312 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:53:00,313 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:53:00,314 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:53:00,314 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:53:00,314 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:53:00,315 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:53:00,315 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:53:00,316 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:53:00,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:53:00,319 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:53:00,320 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:53:00,320 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:53:00,320 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:53:00,320 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:53:00,321 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 03:53:00,321 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 03:53:00,321 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:53:00,322 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:53:00,322 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:53:00,322 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:53:00,323 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 03:53:00,323 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:53:00,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:53:00,323 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:53:00,324 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:53:00,324 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:53:00,324 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 03:53:00,325 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 03:53:00,325 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:53:00,325 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:53:00,325 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:53:00,326 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_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ed3d5c0aeaf7c032926a2347a2cd8f6e5404a73032a43856ee00d265d816a1f [2021-11-03 03:53:00,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:53:00,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:53:00,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:53:00,782 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:53:00,783 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:53:00,784 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-03 03:53:00,863 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/data/7b4bed032/46122d618b63447bbc70d1bc3d996c87/FLAGa12e9b8c2 [2021-11-03 03:53:02,060 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:53:02,061 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-03 03:53:02,129 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/data/7b4bed032/46122d618b63447bbc70d1bc3d996c87/FLAGa12e9b8c2 [2021-11-03 03:53:02,299 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/data/7b4bed032/46122d618b63447bbc70d1bc3d996c87 [2021-11-03 03:53:02,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:53:02,303 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:53:02,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:53:02,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:53:02,311 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:53:02,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:53:02" (1/1) ... [2021-11-03 03:53:02,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6551ee00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:02, skipping insertion in model container [2021-11-03 03:53:02,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:53:02" (1/1) ... [2021-11-03 03:53:02,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:53:02,540 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:53:05,810 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_a9b765d0-e17b-49cc-9add-49de36349505/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310122,310135] [2021-11-03 03:53:05,813 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_a9b765d0-e17b-49cc-9add-49de36349505/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310267,310280] [2021-11-03 03:53:05,834 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:53:05,881 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 03:53:05,947 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:53:06,352 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_a9b765d0-e17b-49cc-9add-49de36349505/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310122,310135] [2021-11-03 03:53:06,353 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_a9b765d0-e17b-49cc-9add-49de36349505/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310267,310280] [2021-11-03 03:53:06,360 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:53:06,438 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:53:07,043 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_a9b765d0-e17b-49cc-9add-49de36349505/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310122,310135] [2021-11-03 03:53:07,044 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_a9b765d0-e17b-49cc-9add-49de36349505/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310267,310280] [2021-11-03 03:53:07,064 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:53:07,383 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:53:07,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:07 WrapperNode [2021-11-03 03:53:07,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:53:07,386 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:53:07,386 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:53:07,386 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:53:07,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:07" (1/1) ... [2021-11-03 03:53:07,534 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:07" (1/1) ... [2021-11-03 03:53:09,115 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:53:09,116 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:53:09,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:53:09,116 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:53:09,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:07" (1/1) ... [2021-11-03 03:53:09,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:07" (1/1) ... [2021-11-03 03:53:09,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:07" (1/1) ... [2021-11-03 03:53:09,444 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:07" (1/1) ... [2021-11-03 03:53:10,174 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:07" (1/1) ... [2021-11-03 03:53:10,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:07" (1/1) ... [2021-11-03 03:53:10,414 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:07" (1/1) ... [2021-11-03 03:53:10,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:53:10,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:53:10,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:53:10,562 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:53:10,563 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:07" (1/1) ... [2021-11-03 03:53:10,571 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:53:10,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:53:10,600 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:53:10,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:53:10,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 03:53:10,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 03:53:10,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 03:53:10,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 03:53:10,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 03:53:10,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 03:53:10,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-03 03:53:10,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-03 03:53:10,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-03 03:53:10,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-03 03:53:10,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:53:10,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:53:10,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 03:53:10,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 03:53:10,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 03:53:10,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 03:53:10,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-03 03:53:10,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 03:53:10,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:53:10,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 03:53:10,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 03:53:10,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 03:53:10,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-03 03:53:10,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 03:53:10,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 03:53:10,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-03 03:53:10,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-03 03:53:10,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-03 03:53:10,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-03 03:56:50,983 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0bv32; [2021-11-03 03:56:50,983 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0bv32; [2021-11-03 03:56:50,984 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0bv32; [2021-11-03 03:56:50,985 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0bv32; [2021-11-03 03:56:50,987 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-03 03:56:50,988 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0bv32; [2021-11-03 03:56:51,065 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:56:51,066 INFO L299 CfgBuilder]: Removed 10504 assume(true) statements. [2021-11-03 03:56:51,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:56:51 BoogieIcfgContainer [2021-11-03 03:56:51,078 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:56:51,081 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:56:51,081 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:56:51,085 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:56:51,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:53:02" (1/3) ... [2021-11-03 03:56:51,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ccb771d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:56:51, skipping insertion in model container [2021-11-03 03:56:51,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:07" (2/3) ... [2021-11-03 03:56:51,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ccb771d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:56:51, skipping insertion in model container [2021-11-03 03:56:51,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:56:51" (3/3) ... [2021-11-03 03:56:51,090 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-03 03:56:51,098 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:56:51,099 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2021-11-03 03:56:51,198 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:56:51,206 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 [2021-11-03 03:56:51,206 INFO L340 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2021-11-03 03:56:51,340 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) [2021-11-03 03:56:51,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-03 03:56:51,366 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:56:51,367 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] [2021-11-03 03:56:51,368 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)] === [2021-11-03 03:56:51,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:56:51,375 INFO L85 PathProgramCache]: Analyzing trace with hash -767304460, now seen corresponding path program 1 times [2021-11-03 03:56:51,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:56:51,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1916720773] [2021-11-03 03:56:51,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:56:51,401 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:56:51,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:56:51,407 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:56:51,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 03:56:55,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:56:55,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 1449 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 03:56:55,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:56:55,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:56:55,614 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:56:55,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:56:55,979 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:56:55,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1916720773] [2021-11-03 03:56:55,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1916720773] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:56:55,980 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:56:55,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 03:56:55,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669806772] [2021-11-03 03:56:55,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:56:55,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:56:56,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:56:56,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:56:56,030 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) [2021-11-03 03:57:00,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:57:00,006 INFO L93 Difference]: Finished difference Result 25899 states and 31245 transitions. [2021-11-03 03:57:00,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 03:57:00,010 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 [2021-11-03 03:57:00,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:57:00,187 INFO L225 Difference]: With dead ends: 25899 [2021-11-03 03:57:00,188 INFO L226 Difference]: Without dead ends: 18735 [2021-11-03 03:57:00,222 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 [2021-11-03 03:57:00,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18735 states. [2021-11-03 03:57:01,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18735 to 18079. [2021-11-03 03:57:01,718 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) [2021-11-03 03:57:01,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18079 states to 18079 states and 21529 transitions. [2021-11-03 03:57:01,840 INFO L78 Accepts]: Start accepts. Automaton has 18079 states and 21529 transitions. Word has length 64 [2021-11-03 03:57:01,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:57:01,843 INFO L470 AbstractCegarLoop]: Abstraction has 18079 states and 21529 transitions. [2021-11-03 03:57:01,844 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) [2021-11-03 03:57:01,845 INFO L276 IsEmpty]: Start isEmpty. Operand 18079 states and 21529 transitions. [2021-11-03 03:57:01,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-03 03:57:01,855 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:57:01,856 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] [2021-11-03 03:57:01,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 03:57:02,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:57:02,069 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)] === [2021-11-03 03:57:02,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:57:02,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1484214665, now seen corresponding path program 1 times [2021-11-03 03:57:02,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:57:02,076 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1108663931] [2021-11-03 03:57:02,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:57:02,077 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:57:02,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:57:02,081 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:57:02,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 03:57:05,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:57:05,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 1480 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 03:57:05,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:57:06,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:57:06,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:57:06,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:57:06,589 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:57:06,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1108663931] [2021-11-03 03:57:06,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1108663931] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:57:06,590 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:57:06,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 03:57:06,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857876051] [2021-11-03 03:57:06,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:57:06,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:57:06,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:57:06,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:57:06,594 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) [2021-11-03 03:57:11,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:57:11,039 INFO L93 Difference]: Finished difference Result 47507 states and 56917 transitions. [2021-11-03 03:57:11,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 03:57:11,040 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 [2021-11-03 03:57:11,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:57:11,283 INFO L225 Difference]: With dead ends: 47507 [2021-11-03 03:57:11,284 INFO L226 Difference]: Without dead ends: 29504 [2021-11-03 03:57:11,321 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 [2021-11-03 03:57:11,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29504 states. [2021-11-03 03:57:13,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29504 to 29460. [2021-11-03 03:57:13,086 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) [2021-11-03 03:57:13,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29460 states to 29460 states and 35388 transitions. [2021-11-03 03:57:13,170 INFO L78 Accepts]: Start accepts. Automaton has 29460 states and 35388 transitions. Word has length 70 [2021-11-03 03:57:13,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:57:13,172 INFO L470 AbstractCegarLoop]: Abstraction has 29460 states and 35388 transitions. [2021-11-03 03:57:13,173 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) [2021-11-03 03:57:13,173 INFO L276 IsEmpty]: Start isEmpty. Operand 29460 states and 35388 transitions. [2021-11-03 03:57:13,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-03 03:57:13,176 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:57:13,176 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] [2021-11-03 03:57:13,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 03:57:13,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:57:13,403 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)] === [2021-11-03 03:57:13,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:57:13,404 INFO L85 PathProgramCache]: Analyzing trace with hash -662246185, now seen corresponding path program 1 times [2021-11-03 03:57:13,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:57:13,410 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2076835906] [2021-11-03 03:57:13,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:57:13,412 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:57:13,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:57:13,413 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:57:13,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 03:57:17,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:57:17,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 1472 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 03:57:17,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:57:17,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:57:17,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:57:18,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:57:18,035 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:57:18,036 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2076835906] [2021-11-03 03:57:18,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2076835906] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:57:18,036 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:57:18,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 03:57:18,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978312263] [2021-11-03 03:57:18,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 03:57:18,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:57:18,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 03:57:18,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 03:57:18,039 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) [2021-11-03 03:57:22,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:57:22,904 INFO L93 Difference]: Finished difference Result 84119 states and 100526 transitions. [2021-11-03 03:57:22,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 03:57:22,904 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 [2021-11-03 03:57:22,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:57:23,096 INFO L225 Difference]: With dead ends: 84119 [2021-11-03 03:57:23,096 INFO L226 Difference]: Without dead ends: 54735 [2021-11-03 03:57:23,188 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 [2021-11-03 03:57:23,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54735 states. [2021-11-03 03:57:26,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54735 to 54474. [2021-11-03 03:57:26,212 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) [2021-11-03 03:57:26,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54474 states to 54474 states and 64899 transitions. [2021-11-03 03:57:26,385 INFO L78 Accepts]: Start accepts. Automaton has 54474 states and 64899 transitions. Word has length 73 [2021-11-03 03:57:26,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:57:26,386 INFO L470 AbstractCegarLoop]: Abstraction has 54474 states and 64899 transitions. [2021-11-03 03:57:26,388 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) [2021-11-03 03:57:26,388 INFO L276 IsEmpty]: Start isEmpty. Operand 54474 states and 64899 transitions. [2021-11-03 03:57:26,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-03 03:57:26,399 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:57:26,400 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] [2021-11-03 03:57:26,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 03:57:26,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:57:26,627 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)] === [2021-11-03 03:57:26,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:57:26,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1447834720, now seen corresponding path program 1 times [2021-11-03 03:57:26,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:57:26,638 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [36230832] [2021-11-03 03:57:26,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:57:26,638 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:57:26,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:57:26,640 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:57:26,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 03:57:30,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:57:30,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 1611 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 03:57:30,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:57:31,447 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 03:57:31,448 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:57:32,382 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 03:57:32,382 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:57:32,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [36230832] [2021-11-03 03:57:32,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [36230832] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:57:32,383 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:57:32,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 03:57:32,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348668894] [2021-11-03 03:57:32,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 03:57:32,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:57:32,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 03:57:32,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 03:57:32,385 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) [2021-11-03 03:57:37,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:57:37,981 INFO L93 Difference]: Finished difference Result 163270 states and 194527 transitions. [2021-11-03 03:57:37,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 03:57:37,982 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 [2021-11-03 03:57:37,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:57:38,622 INFO L225 Difference]: With dead ends: 163270 [2021-11-03 03:57:38,622 INFO L226 Difference]: Without dead ends: 108872 [2021-11-03 03:57:38,780 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 [2021-11-03 03:57:38,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108872 states. [2021-11-03 03:57:44,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108872 to 108848. [2021-11-03 03:57:44,188 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) [2021-11-03 03:57:44,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108848 states to 108848 states and 129196 transitions. [2021-11-03 03:57:44,588 INFO L78 Accepts]: Start accepts. Automaton has 108848 states and 129196 transitions. Word has length 124 [2021-11-03 03:57:44,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:57:44,591 INFO L470 AbstractCegarLoop]: Abstraction has 108848 states and 129196 transitions. [2021-11-03 03:57:44,591 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) [2021-11-03 03:57:44,591 INFO L276 IsEmpty]: Start isEmpty. Operand 108848 states and 129196 transitions. [2021-11-03 03:57:44,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-03 03:57:44,607 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:57:44,607 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] [2021-11-03 03:57:44,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 03:57:44,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:57:44,819 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)] === [2021-11-03 03:57:44,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:57:44,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1207594974, now seen corresponding path program 1 times [2021-11-03 03:57:44,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:57:44,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1150446586] [2021-11-03 03:57:44,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:57:44,823 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:57:44,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:57:44,824 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:57:44,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b765d0-e17b-49cc-9add-49de36349505/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 03:57:48,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:57:49,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 1611 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 03:57:49,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:57:49,927 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 03:57:49,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:57:50,781 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 03:57:50,781 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:57:50,781 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1150446586] [2021-11-03 03:57:50,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1150446586] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:57:50,782 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:57:50,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 03:57:50,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771053106] [2021-11-03 03:57:50,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 03:57:50,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:57:50,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 03:57:50,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 03:57:50,784 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) [2021-11-03 03:57:56,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:57:56,564 INFO L93 Difference]: Finished difference Result 217620 states and 258307 transitions. [2021-11-03 03:57:56,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 03:57:56,564 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 [2021-11-03 03:57:56,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:57:56,879 INFO L225 Difference]: With dead ends: 217620 [2021-11-03 03:57:56,879 INFO L226 Difference]: Without dead ends: 108848 [2021-11-03 03:57:57,136 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 [2021-11-03 03:57:57,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108848 states.