./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.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_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/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_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/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_fef11715-fa72-44b1-8f1c-11a5c07b8454/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 3bc6b3a88723e5b624538f8d0e562bbcbb838c2bd2dcd71ae870bf42dcd3068b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:22:39,298 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:22:39,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:22:39,346 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:22:39,346 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:22:39,351 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:22:39,352 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:22:39,356 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:22:39,358 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:22:39,361 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:22:39,362 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:22:39,363 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:22:39,363 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:22:39,365 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:22:39,366 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:22:39,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:22:39,368 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:22:39,369 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:22:39,371 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:22:39,373 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:22:39,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:22:39,376 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:22:39,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:22:39,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:22:39,382 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:22:39,382 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:22:39,383 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:22:39,384 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:22:39,384 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:22:39,385 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:22:39,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:22:39,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:22:39,387 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:22:39,388 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:22:39,389 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:22:39,390 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:22:39,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:22:39,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:22:39,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:22:39,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:22:39,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:22:39,398 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 05:22:39,447 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:22:39,448 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:22:39,449 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:22:39,450 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:22:39,450 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:22:39,450 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:22:39,450 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:22:39,450 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:22:39,456 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:22:39,457 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:22:39,458 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:22:39,458 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:22:39,458 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:22:39,458 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:22:39,459 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:22:39,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:22:39,460 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:22:39,460 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:22:39,460 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:22:39,460 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:22:39,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:22:39,461 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:22:39,461 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:22:39,461 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:22:39,461 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:22:39,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:22:39,462 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:22:39,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:22:39,462 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:22:39,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:22:39,464 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:22:39,464 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:22:39,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:22:39,465 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:22:39,465 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:22:39,465 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:22:39,466 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_fef11715-fa72-44b1-8f1c-11a5c07b8454/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bc6b3a88723e5b624538f8d0e562bbcbb838c2bd2dcd71ae870bf42dcd3068b [2021-11-03 05:22:39,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:22:39,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:22:39,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:22:39,743 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:22:39,743 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:22:39,744 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-03 05:22:39,810 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/data/4bbe4b49e/1b7e19319a804d6d9a8d098d8b27c028/FLAG1d254bd2e [2021-11-03 05:22:40,745 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:22:40,746 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-03 05:22:40,802 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/data/4bbe4b49e/1b7e19319a804d6d9a8d098d8b27c028/FLAG1d254bd2e [2021-11-03 05:22:41,122 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/data/4bbe4b49e/1b7e19319a804d6d9a8d098d8b27c028 [2021-11-03 05:22:41,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:22:41,128 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:22:41,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:22:41,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:22:41,134 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:22:41,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:22:41" (1/1) ... [2021-11-03 05:22:41,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e781248 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:41, skipping insertion in model container [2021-11-03 05:22:41,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:22:41" (1/1) ... [2021-11-03 05:22:41,145 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:22:41,312 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:22:43,157 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 05:22:43,160 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 05:22:43,309 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 05:22:43,311 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 05:22:43,356 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 05:22:43,358 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 05:22:44,296 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_fef11715-fa72-44b1-8f1c-11a5c07b8454/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339479,339492] [2021-11-03 05:22:44,302 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_fef11715-fa72-44b1-8f1c-11a5c07b8454/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339648,339661] [2021-11-03 05:22:44,309 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_fef11715-fa72-44b1-8f1c-11a5c07b8454/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339815,339828] [2021-11-03 05:22:44,310 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_fef11715-fa72-44b1-8f1c-11a5c07b8454/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339983,339996] [2021-11-03 05:22:44,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:22:44,364 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 05:22:44,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7641f360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:44, skipping insertion in model container [2021-11-03 05:22:44,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:22:44,365 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 05:22:44,367 INFO L168 Benchmark]: Toolchain (without parser) took 3237.93 ms. Allocated memory was 104.9 MB in the beginning and 138.4 MB in the end (delta: 33.6 MB). Free memory was 70.1 MB in the beginning and 68.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 49.0 MB. Max. memory is 16.1 GB. [2021-11-03 05:22:44,368 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 104.9 MB. Free memory is still 79.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:22:44,369 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3234.04 ms. Allocated memory was 104.9 MB in the beginning and 138.4 MB in the end (delta: 33.6 MB). Free memory was 69.9 MB in the beginning and 68.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 46.9 MB. Max. memory is 16.1 GB. [2021-11-03 05:22:44,371 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 104.9 MB. Free memory is still 79.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3234.04 ms. Allocated memory was 104.9 MB in the beginning and 138.4 MB in the end (delta: 33.6 MB). Free memory was 69.9 MB in the beginning and 68.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 46.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7471]: 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_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/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_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/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_fef11715-fa72-44b1-8f1c-11a5c07b8454/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 3bc6b3a88723e5b624538f8d0e562bbcbb838c2bd2dcd71ae870bf42dcd3068b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:22:46,479 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:22:46,481 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:22:46,515 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:22:46,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:22:46,517 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:22:46,518 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:22:46,521 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:22:46,523 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:22:46,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:22:46,525 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:22:46,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:22:46,527 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:22:46,528 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:22:46,530 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:22:46,531 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:22:46,532 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:22:46,533 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:22:46,536 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:22:46,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:22:46,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:22:46,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:22:46,543 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:22:46,544 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:22:46,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:22:46,548 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:22:46,548 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:22:46,550 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:22:46,550 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:22:46,551 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:22:46,552 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:22:46,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:22:46,554 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:22:46,555 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:22:46,556 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:22:46,557 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:22:46,569 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:22:46,570 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:22:46,570 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:22:46,572 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:22:46,572 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:22:46,577 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 05:22:46,621 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:22:46,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:22:46,622 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:22:46,622 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:22:46,622 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:22:46,622 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:22:46,623 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:22:46,623 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:22:46,623 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:22:46,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:22:46,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:22:46,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:22:46,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:22:46,625 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:22:46,625 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:22:46,625 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:22:46,625 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:22:46,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:22:46,626 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:22:46,626 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:22:46,626 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:22:46,626 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:22:46,627 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:22:46,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:22:46,627 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:22:46,627 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:22:46,628 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:22:46,628 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:22:46,628 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:22:46,628 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:22:46,628 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:22:46,629 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:22:46,629 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_fef11715-fa72-44b1-8f1c-11a5c07b8454/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bc6b3a88723e5b624538f8d0e562bbcbb838c2bd2dcd71ae870bf42dcd3068b [2021-11-03 05:22:46,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:22:47,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:22:47,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:22:47,012 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:22:47,013 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:22:47,014 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-03 05:22:47,093 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/data/b79cce17e/df5b763bf11145c0b886d4debbeac483/FLAGfa65214d2 [2021-11-03 05:22:48,074 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:22:48,075 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-03 05:22:48,147 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/data/b79cce17e/df5b763bf11145c0b886d4debbeac483/FLAGfa65214d2 [2021-11-03 05:22:48,555 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/data/b79cce17e/df5b763bf11145c0b886d4debbeac483 [2021-11-03 05:22:48,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:22:48,560 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:22:48,563 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:22:48,563 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:22:48,567 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:22:48,568 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:22:48" (1/1) ... [2021-11-03 05:22:48,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28628fb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:48, skipping insertion in model container [2021-11-03 05:22:48,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:22:48" (1/1) ... [2021-11-03 05:22:48,577 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:22:48,759 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:22:51,609 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_fef11715-fa72-44b1-8f1c-11a5c07b8454/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339479,339492] [2021-11-03 05:22:51,612 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_fef11715-fa72-44b1-8f1c-11a5c07b8454/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339648,339661] [2021-11-03 05:22:51,613 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_fef11715-fa72-44b1-8f1c-11a5c07b8454/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339815,339828] [2021-11-03 05:22:51,613 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_fef11715-fa72-44b1-8f1c-11a5c07b8454/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339983,339996] [2021-11-03 05:22:51,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:22:51,698 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:22:51,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:22:52,105 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_fef11715-fa72-44b1-8f1c-11a5c07b8454/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339479,339492] [2021-11-03 05:22:52,134 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_fef11715-fa72-44b1-8f1c-11a5c07b8454/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339648,339661] [2021-11-03 05:22:52,134 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_fef11715-fa72-44b1-8f1c-11a5c07b8454/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339815,339828] [2021-11-03 05:22:52,135 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_fef11715-fa72-44b1-8f1c-11a5c07b8454/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339983,339996] [2021-11-03 05:22:52,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:22:52,177 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:22:52,598 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_fef11715-fa72-44b1-8f1c-11a5c07b8454/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339479,339492] [2021-11-03 05:22:52,598 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_fef11715-fa72-44b1-8f1c-11a5c07b8454/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339648,339661] [2021-11-03 05:22:52,599 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_fef11715-fa72-44b1-8f1c-11a5c07b8454/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339815,339828] [2021-11-03 05:22:52,599 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_fef11715-fa72-44b1-8f1c-11a5c07b8454/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339983,339996] [2021-11-03 05:22:52,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:22:52,832 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:22:52,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:52 WrapperNode [2021-11-03 05:22:52,833 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:22:52,834 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:22:52,835 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:22:52,835 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:22:52,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:52" (1/1) ... [2021-11-03 05:22:52,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:52" (1/1) ... [2021-11-03 05:23:04,467 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:23:04,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:23:04,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:23:04,469 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:23:04,475 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:52" (1/1) ... [2021-11-03 05:23:04,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:52" (1/1) ... [2021-11-03 05:23:05,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:52" (1/1) ... [2021-11-03 05:23:05,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:52" (1/1) ... [2021-11-03 05:23:07,464 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:52" (1/1) ... [2021-11-03 05:23:07,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:52" (1/1) ... [2021-11-03 05:23:08,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:52" (1/1) ... [2021-11-03 05:23:08,560 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:23:08,561 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:23:08,561 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:23:08,561 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:23:08,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:52" (1/1) ... [2021-11-03 05:23:08,570 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:23:08,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:23:08,594 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:23:08,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:23:08,628 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-03 05:23:08,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:23:08,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:23:08,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 05:23:08,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 05:23:08,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:23:08,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:23:08,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-03 05:23:08,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-03 05:23:08,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-03 05:23:08,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-03 05:23:08,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:23:08,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:23:08,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 05:23:08,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 05:23:08,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 05:23:08,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 05:23:08,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-03 05:23:08,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 05:23:08,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:23:08,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:23:08,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 05:23:08,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 05:23:08,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-03 05:23:08,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 05:23:08,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:23:08,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-03 05:23:08,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-03 05:23:08,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-03 05:23:08,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-03 05:27:10,209 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_entry_EMGentry_14_returnLabel: main_#res := 0bv32; [2021-11-03 05:27:10,215 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-03 05:27:10,216 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L9983: #t~ret1275 := main_#res; [2021-11-03 05:27:10,225 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_pci_pci_instance_2_switch_break: call ULTIMATE.dealloc(ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.offset);havoc ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.offset; [2021-11-03 05:27:10,362 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:27:10,362 INFO L299 CfgBuilder]: Removed 44956 assume(true) statements. [2021-11-03 05:27:10,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:27:10 BoogieIcfgContainer [2021-11-03 05:27:10,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:27:10,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:27:10,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:27:10,397 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:27:10,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:22:48" (1/3) ... [2021-11-03 05:27:10,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18e76ce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:27:10, skipping insertion in model container [2021-11-03 05:27:10,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:22:52" (2/3) ... [2021-11-03 05:27:10,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18e76ce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:27:10, skipping insertion in model container [2021-11-03 05:27:10,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:27:10" (3/3) ... [2021-11-03 05:27:10,401 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-03 05:27:10,407 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:27:10,408 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 69 error locations. [2021-11-03 05:27:10,557 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:27:10,564 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 05:27:10,564 INFO L340 AbstractCegarLoop]: Starting to check reachability of 69 error locations. [2021-11-03 05:27:11,120 INFO L276 IsEmpty]: Start isEmpty. Operand has 28815 states, 28746 states have (on average 1.2065330828637029) internal successors, (34683), 28814 states have internal predecessors, (34683), 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 05:27:11,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-03 05:27:11,127 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:27:11,127 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:27:11,128 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-03 05:27:11,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:27:11,134 INFO L85 PathProgramCache]: Analyzing trace with hash -29633841, now seen corresponding path program 1 times [2021-11-03 05:27:11,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:27:11,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1758188393] [2021-11-03 05:27:11,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:27:11,154 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:27:11,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:27:11,157 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:27:11,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:27:13,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:27:13,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 963 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:27:13,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:27:13,443 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 05:27:13,444 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:27:13,551 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 05:27:13,552 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:27:13,553 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1758188393] [2021-11-03 05:27:13,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1758188393] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:27:13,553 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:27:13,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 05:27:13,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593252447] [2021-11-03 05:27:13,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:27:13,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:27:13,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:27:13,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:27:13,638 INFO L87 Difference]: Start difference. First operand has 28815 states, 28746 states have (on average 1.2065330828637029) internal successors, (34683), 28814 states have internal predecessors, (34683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 05:27:15,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:27:15,453 INFO L93 Difference]: Finished difference Result 57591 states and 69316 transitions. [2021-11-03 05:27:15,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:27:15,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2021-11-03 05:27:15,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:27:15,714 INFO L225 Difference]: With dead ends: 57591 [2021-11-03 05:27:15,714 INFO L226 Difference]: Without dead ends: 28652 [2021-11-03 05:27:15,791 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:27:15,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28652 states. [2021-11-03 05:27:17,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28652 to 28652. [2021-11-03 05:27:17,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28652 states, 28583 states have (on average 1.19700521288878) internal successors, (34214), 28651 states have internal predecessors, (34214), 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 05:27:17,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28652 states to 28652 states and 34214 transitions. [2021-11-03 05:27:17,465 INFO L78 Accepts]: Start accepts. Automaton has 28652 states and 34214 transitions. Word has length 17 [2021-11-03 05:27:17,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:27:17,465 INFO L470 AbstractCegarLoop]: Abstraction has 28652 states and 34214 transitions. [2021-11-03 05:27:17,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 05:27:17,466 INFO L276 IsEmpty]: Start isEmpty. Operand 28652 states and 34214 transitions. [2021-11-03 05:27:17,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-03 05:27:17,468 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:27:17,469 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] [2021-11-03 05:27:17,502 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-03 05:27:17,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:27:17,694 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-03 05:27:17,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:27:17,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1419453784, now seen corresponding path program 1 times [2021-11-03 05:27:17,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:27:17,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1536357855] [2021-11-03 05:27:17,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:27:17,699 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:27:17,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:27:17,703 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:27:17,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:27:19,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:27:19,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 1015 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:27:19,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:27:19,998 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 05:27:19,998 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:27:20,197 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 05:27:20,197 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:27:20,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1536357855] [2021-11-03 05:27:20,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1536357855] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:27:20,198 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:27:20,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:27:20,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196272696] [2021-11-03 05:27:20,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:27:20,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:27:20,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:27:20,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:27:20,201 INFO L87 Difference]: Start difference. First operand 28652 states and 34214 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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 05:27:22,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:27:22,324 INFO L93 Difference]: Finished difference Result 28652 states and 34214 transitions. [2021-11-03 05:27:22,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:27:22,325 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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 25 [2021-11-03 05:27:22,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:27:22,403 INFO L225 Difference]: With dead ends: 28652 [2021-11-03 05:27:22,404 INFO L226 Difference]: Without dead ends: 28648 [2021-11-03 05:27:22,414 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:27:22,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28648 states. [2021-11-03 05:27:23,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28648 to 28648. [2021-11-03 05:27:23,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28648 states, 28581 states have (on average 1.196949022077604) internal successors, (34210), 28647 states have internal predecessors, (34210), 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 05:27:23,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28648 states to 28648 states and 34210 transitions. [2021-11-03 05:27:23,860 INFO L78 Accepts]: Start accepts. Automaton has 28648 states and 34210 transitions. Word has length 25 [2021-11-03 05:27:23,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:27:23,861 INFO L470 AbstractCegarLoop]: Abstraction has 28648 states and 34210 transitions. [2021-11-03 05:27:23,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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 05:27:23,861 INFO L276 IsEmpty]: Start isEmpty. Operand 28648 states and 34210 transitions. [2021-11-03 05:27:23,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-03 05:27:23,862 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:27:23,862 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] [2021-11-03 05:27:23,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:27:24,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:27:24,077 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-03 05:27:24,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:27:24,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1702205349, now seen corresponding path program 1 times [2021-11-03 05:27:24,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:27:24,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1489412427] [2021-11-03 05:27:24,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:27:24,083 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:27:24,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:27:24,084 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:27:24,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:27:25,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:27:25,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 1018 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:27:25,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:27:26,136 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 05:27:26,136 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:27:26,341 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 05:27:26,342 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:27:26,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1489412427] [2021-11-03 05:27:26,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1489412427] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:27:26,342 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:27:26,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:27:26,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586939242] [2021-11-03 05:27:26,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:27:26,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:27:26,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:27:26,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:27:26,345 INFO L87 Difference]: Start difference. First operand 28648 states and 34210 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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 05:27:28,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:27:28,356 INFO L93 Difference]: Finished difference Result 28648 states and 34210 transitions. [2021-11-03 05:27:28,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:27:28,357 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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 27 [2021-11-03 05:27:28,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:27:28,438 INFO L225 Difference]: With dead ends: 28648 [2021-11-03 05:27:28,438 INFO L226 Difference]: Without dead ends: 28644 [2021-11-03 05:27:28,448 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:27:28,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28644 states. [2021-11-03 05:27:29,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28644 to 28644. [2021-11-03 05:27:29,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28644 states, 28579 states have (on average 1.1968928234017986) internal successors, (34206), 28643 states have internal predecessors, (34206), 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 05:27:29,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28644 states to 28644 states and 34206 transitions. [2021-11-03 05:27:29,895 INFO L78 Accepts]: Start accepts. Automaton has 28644 states and 34206 transitions. Word has length 27 [2021-11-03 05:27:29,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:27:29,896 INFO L470 AbstractCegarLoop]: Abstraction has 28644 states and 34206 transitions. [2021-11-03 05:27:29,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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 05:27:29,896 INFO L276 IsEmpty]: Start isEmpty. Operand 28644 states and 34206 transitions. [2021-11-03 05:27:29,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-03 05:27:29,898 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:27:29,898 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] [2021-11-03 05:27:29,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:27:30,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:27:30,105 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-03 05:27:30,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:27:30,106 INFO L85 PathProgramCache]: Analyzing trace with hash 565508062, now seen corresponding path program 1 times [2021-11-03 05:27:30,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:27:30,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1251945123] [2021-11-03 05:27:30,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:27:30,109 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:27:30,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:27:30,110 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:27:30,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:27:31,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:27:31,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 1021 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:27:31,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:27:32,119 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 05:27:32,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:27:32,314 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 05:27:32,314 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:27:32,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1251945123] [2021-11-03 05:27:32,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1251945123] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:27:32,315 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:27:32,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:27:32,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902767731] [2021-11-03 05:27:32,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:27:32,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:27:32,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:27:32,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:27:32,317 INFO L87 Difference]: Start difference. First operand 28644 states and 34206 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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 05:27:33,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:27:33,990 INFO L93 Difference]: Finished difference Result 28644 states and 34206 transitions. [2021-11-03 05:27:33,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:27:33,990 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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 29 [2021-11-03 05:27:33,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:27:34,090 INFO L225 Difference]: With dead ends: 28644 [2021-11-03 05:27:34,090 INFO L226 Difference]: Without dead ends: 28640 [2021-11-03 05:27:34,103 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:27:34,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28640 states. [2021-11-03 05:27:35,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28640 to 28640. [2021-11-03 05:27:35,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28640 states, 28577 states have (on average 1.1968366168597124) internal successors, (34202), 28639 states have internal predecessors, (34202), 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 05:27:35,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28640 states to 28640 states and 34202 transitions. [2021-11-03 05:27:35,402 INFO L78 Accepts]: Start accepts. Automaton has 28640 states and 34202 transitions. Word has length 29 [2021-11-03 05:27:35,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:27:35,403 INFO L470 AbstractCegarLoop]: Abstraction has 28640 states and 34202 transitions. [2021-11-03 05:27:35,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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 05:27:35,403 INFO L276 IsEmpty]: Start isEmpty. Operand 28640 states and 34202 transitions. [2021-11-03 05:27:35,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-03 05:27:35,405 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:27:35,405 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] [2021-11-03 05:27:35,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-03 05:27:35,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:27:35,606 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-03 05:27:35,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:27:35,606 INFO L85 PathProgramCache]: Analyzing trace with hash -2005290015, now seen corresponding path program 1 times [2021-11-03 05:27:35,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:27:35,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [198990090] [2021-11-03 05:27:35,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:27:35,608 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:27:35,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:27:35,609 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:27:35,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 05:27:37,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:27:37,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 1024 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:27:37,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:27:37,796 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 05:27:37,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:27:38,025 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 05:27:38,026 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:27:38,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [198990090] [2021-11-03 05:27:38,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [198990090] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:27:38,026 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:27:38,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:27:38,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281705608] [2021-11-03 05:27:38,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:27:38,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:27:38,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:27:38,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:27:38,029 INFO L87 Difference]: Start difference. First operand 28640 states and 34202 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:27:39,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:27:39,757 INFO L93 Difference]: Finished difference Result 28640 states and 34202 transitions. [2021-11-03 05:27:39,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:27:39,757 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-03 05:27:39,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:27:39,820 INFO L225 Difference]: With dead ends: 28640 [2021-11-03 05:27:39,820 INFO L226 Difference]: Without dead ends: 28636 [2021-11-03 05:27:39,829 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:27:39,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28636 states. [2021-11-03 05:27:41,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28636 to 28636. [2021-11-03 05:27:41,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28636 states, 28575 states have (on average 1.1967804024496937) internal successors, (34198), 28635 states have internal predecessors, (34198), 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 05:27:41,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28636 states to 28636 states and 34198 transitions. [2021-11-03 05:27:41,296 INFO L78 Accepts]: Start accepts. Automaton has 28636 states and 34198 transitions. Word has length 31 [2021-11-03 05:27:41,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:27:41,296 INFO L470 AbstractCegarLoop]: Abstraction has 28636 states and 34198 transitions. [2021-11-03 05:27:41,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:27:41,296 INFO L276 IsEmpty]: Start isEmpty. Operand 28636 states and 34198 transitions. [2021-11-03 05:27:41,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-03 05:27:41,298 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:27:41,298 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:27:41,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 05:27:41,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:27:41,505 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-03 05:27:41,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:27:41,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1358920804, now seen corresponding path program 1 times [2021-11-03 05:27:41,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:27:41,507 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [59876350] [2021-11-03 05:27:41,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:27:41,507 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:27:41,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:27:41,508 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:27:41,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 05:27:43,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:27:43,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 1027 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:27:43,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:27:43,763 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 05:27:43,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:27:44,019 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 05:27:44,019 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:27:44,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [59876350] [2021-11-03 05:27:44,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [59876350] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:27:44,019 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:27:44,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:27:44,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425268469] [2021-11-03 05:27:44,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:27:44,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:27:44,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:27:44,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:27:44,022 INFO L87 Difference]: Start difference. First operand 28636 states and 34198 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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 05:27:48,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:27:48,785 INFO L93 Difference]: Finished difference Result 28636 states and 34198 transitions. [2021-11-03 05:27:48,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:27:48,786 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-03 05:27:48,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:27:48,847 INFO L225 Difference]: With dead ends: 28636 [2021-11-03 05:27:48,848 INFO L226 Difference]: Without dead ends: 28632 [2021-11-03 05:27:48,859 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:27:48,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28632 states. [2021-11-03 05:27:50,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28632 to 28632. [2021-11-03 05:27:50,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28632 states, 28573 states have (on average 1.1967241801700907) internal successors, (34194), 28631 states have internal predecessors, (34194), 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 05:27:50,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28632 states to 28632 states and 34194 transitions. [2021-11-03 05:27:50,374 INFO L78 Accepts]: Start accepts. Automaton has 28632 states and 34194 transitions. Word has length 33 [2021-11-03 05:27:50,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:27:50,374 INFO L470 AbstractCegarLoop]: Abstraction has 28632 states and 34194 transitions. [2021-11-03 05:27:50,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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 05:27:50,374 INFO L276 IsEmpty]: Start isEmpty. Operand 28632 states and 34194 transitions. [2021-11-03 05:27:50,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-03 05:27:50,375 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:27:50,376 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] [2021-11-03 05:27:50,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 05:27:50,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:27:50,576 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-03 05:27:50,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:27:50,577 INFO L85 PathProgramCache]: Analyzing trace with hash 255144295, now seen corresponding path program 1 times [2021-11-03 05:27:50,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:27:50,578 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [986440846] [2021-11-03 05:27:50,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:27:50,578 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:27:50,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:27:50,579 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:27:50,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 05:27:52,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:27:52,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 1030 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:27:52,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:27:52,713 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 05:27:52,713 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:27:52,981 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 05:27:52,981 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:27:52,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [986440846] [2021-11-03 05:27:52,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [986440846] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:27:52,982 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:27:52,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:27:52,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316783450] [2021-11-03 05:27:52,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:27:52,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:27:52,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:27:52,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:27:52,984 INFO L87 Difference]: Start difference. First operand 28632 states and 34194 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 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 05:27:54,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:27:54,661 INFO L93 Difference]: Finished difference Result 28632 states and 34194 transitions. [2021-11-03 05:27:54,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:27:54,662 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 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 35 [2021-11-03 05:27:54,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:27:54,712 INFO L225 Difference]: With dead ends: 28632 [2021-11-03 05:27:54,713 INFO L226 Difference]: Without dead ends: 28628 [2021-11-03 05:27:54,722 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:27:54,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28628 states. [2021-11-03 05:27:56,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28628 to 28628. [2021-11-03 05:27:56,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28628 states, 28571 states have (on average 1.1966679500192503) internal successors, (34190), 28627 states have internal predecessors, (34190), 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 05:27:56,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28628 states to 28628 states and 34190 transitions. [2021-11-03 05:27:56,337 INFO L78 Accepts]: Start accepts. Automaton has 28628 states and 34190 transitions. Word has length 35 [2021-11-03 05:27:56,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:27:56,338 INFO L470 AbstractCegarLoop]: Abstraction has 28628 states and 34190 transitions. [2021-11-03 05:27:56,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 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 05:27:56,338 INFO L276 IsEmpty]: Start isEmpty. Operand 28628 states and 34190 transitions. [2021-11-03 05:27:56,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-03 05:27:56,339 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:27:56,339 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] [2021-11-03 05:27:56,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 05:27:56,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:27:56,547 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-03 05:27:56,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:27:56,548 INFO L85 PathProgramCache]: Analyzing trace with hash 382841578, now seen corresponding path program 1 times [2021-11-03 05:27:56,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:27:56,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2146708241] [2021-11-03 05:27:56,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:27:56,550 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:27:56,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:27:56,551 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:27:56,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 05:27:58,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:27:58,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 1033 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:27:58,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:27:58,665 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 05:27:58,666 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:27:58,927 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 05:27:58,927 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:27:58,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2146708241] [2021-11-03 05:27:58,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2146708241] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:27:58,927 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:27:58,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:27:58,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028064837] [2021-11-03 05:27:58,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:27:58,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:27:58,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:27:58,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:27:58,929 INFO L87 Difference]: Start difference. First operand 28628 states and 34190 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 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 05:28:00,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:28:00,944 INFO L93 Difference]: Finished difference Result 28628 states and 34190 transitions. [2021-11-03 05:28:00,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:28:00,945 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 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 37 [2021-11-03 05:28:00,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:28:00,994 INFO L225 Difference]: With dead ends: 28628 [2021-11-03 05:28:00,994 INFO L226 Difference]: Without dead ends: 28624 [2021-11-03 05:28:01,000 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:28:01,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28624 states. [2021-11-03 05:28:02,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28624 to 28624. [2021-11-03 05:28:02,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28624 states, 28569 states have (on average 1.1966117119955195) internal successors, (34186), 28623 states have internal predecessors, (34186), 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 05:28:02,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28624 states to 28624 states and 34186 transitions. [2021-11-03 05:28:02,821 INFO L78 Accepts]: Start accepts. Automaton has 28624 states and 34186 transitions. Word has length 37 [2021-11-03 05:28:02,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:28:02,822 INFO L470 AbstractCegarLoop]: Abstraction has 28624 states and 34186 transitions. [2021-11-03 05:28:02,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 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 05:28:02,822 INFO L276 IsEmpty]: Start isEmpty. Operand 28624 states and 34186 transitions. [2021-11-03 05:28:02,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-03 05:28:02,823 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:28:02,824 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] [2021-11-03 05:28:02,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 05:28:03,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:28:03,029 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-03 05:28:03,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:28:03,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1454120723, now seen corresponding path program 1 times [2021-11-03 05:28:03,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:28:03,032 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [322621512] [2021-11-03 05:28:03,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:28:03,032 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:28:03,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:28:03,033 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:28:03,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 05:28:04,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:28:04,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 1036 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:28:04,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:28:05,092 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 05:28:05,093 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:28:05,344 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 05:28:05,345 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:28:05,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [322621512] [2021-11-03 05:28:05,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [322621512] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:28:05,345 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:28:05,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:28:05,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154744308] [2021-11-03 05:28:05,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:28:05,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:28:05,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:28:05,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:28:05,347 INFO L87 Difference]: Start difference. First operand 28624 states and 34186 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 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 05:28:07,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:28:07,655 INFO L93 Difference]: Finished difference Result 28624 states and 34186 transitions. [2021-11-03 05:28:07,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:28:07,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 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 39 [2021-11-03 05:28:07,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:28:07,696 INFO L225 Difference]: With dead ends: 28624 [2021-11-03 05:28:07,696 INFO L226 Difference]: Without dead ends: 28620 [2021-11-03 05:28:07,702 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:28:07,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28620 states. [2021-11-03 05:28:09,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28620 to 28620. [2021-11-03 05:28:09,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28620 states, 28567 states have (on average 1.196555466097245) internal successors, (34182), 28619 states have internal predecessors, (34182), 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 05:28:09,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28620 states to 28620 states and 34182 transitions. [2021-11-03 05:28:09,591 INFO L78 Accepts]: Start accepts. Automaton has 28620 states and 34182 transitions. Word has length 39 [2021-11-03 05:28:09,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:28:09,592 INFO L470 AbstractCegarLoop]: Abstraction has 28620 states and 34182 transitions. [2021-11-03 05:28:09,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 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 05:28:09,592 INFO L276 IsEmpty]: Start isEmpty. Operand 28620 states and 34182 transitions. [2021-11-03 05:28:09,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-03 05:28:09,593 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:28:09,593 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] [2021-11-03 05:28:09,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 05:28:09,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:28:09,794 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-03 05:28:09,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:28:09,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1543333008, now seen corresponding path program 1 times [2021-11-03 05:28:09,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:28:09,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [295882023] [2021-11-03 05:28:09,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:28:09,797 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:28:09,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:28:09,798 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:28:09,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 05:28:11,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:28:11,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 1039 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:28:11,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:28:12,023 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 05:28:12,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:28:12,261 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 05:28:12,261 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:28:12,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [295882023] [2021-11-03 05:28:12,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [295882023] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:28:12,261 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:28:12,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:28:12,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073804000] [2021-11-03 05:28:12,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:28:12,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:28:12,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:28:12,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:28:12,263 INFO L87 Difference]: Start difference. First operand 28620 states and 34182 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 05:28:14,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:28:14,732 INFO L93 Difference]: Finished difference Result 28620 states and 34182 transitions. [2021-11-03 05:28:14,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:28:14,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 41 [2021-11-03 05:28:14,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:28:14,773 INFO L225 Difference]: With dead ends: 28620 [2021-11-03 05:28:14,773 INFO L226 Difference]: Without dead ends: 28616 [2021-11-03 05:28:14,780 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:28:14,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28616 states. [2021-11-03 05:28:16,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28616 to 28616. [2021-11-03 05:28:16,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28616 states, 28565 states have (on average 1.1964992123227727) internal successors, (34178), 28615 states have internal predecessors, (34178), 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 05:28:16,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28616 states to 28616 states and 34178 transitions. [2021-11-03 05:28:16,612 INFO L78 Accepts]: Start accepts. Automaton has 28616 states and 34178 transitions. Word has length 41 [2021-11-03 05:28:16,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:28:16,613 INFO L470 AbstractCegarLoop]: Abstraction has 28616 states and 34178 transitions. [2021-11-03 05:28:16,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 05:28:16,613 INFO L276 IsEmpty]: Start isEmpty. Operand 28616 states and 34178 transitions. [2021-11-03 05:28:16,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-03 05:28:16,614 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:28:16,614 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] [2021-11-03 05:28:16,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-03 05:28:16,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:28:16,818 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-03 05:28:16,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:28:16,818 INFO L85 PathProgramCache]: Analyzing trace with hash 210955841, now seen corresponding path program 1 times [2021-11-03 05:28:16,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:28:16,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [52700861] [2021-11-03 05:28:16,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:28:16,820 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:28:16,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:28:16,821 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:28:16,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 05:28:18,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:28:18,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 1127 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-03 05:28:18,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:28:19,610 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 05:28:19,611 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:28:19,924 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 05:28:19,925 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:28:19,925 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [52700861] [2021-11-03 05:28:19,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [52700861] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:28:19,925 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:28:19,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15, 15] imperfect sequences [] total 16 [2021-11-03 05:28:19,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851627957] [2021-11-03 05:28:19,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-03 05:28:19,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:28:19,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-03 05:28:19,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2021-11-03 05:28:19,927 INFO L87 Difference]: Start difference. First operand 28616 states and 34178 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 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 05:28:25,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:28:25,924 INFO L93 Difference]: Finished difference Result 33237 states and 39666 transitions. [2021-11-03 05:28:25,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-03 05:28:25,925 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 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 42 [2021-11-03 05:28:25,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:28:25,963 INFO L225 Difference]: With dead ends: 33237 [2021-11-03 05:28:25,964 INFO L226 Difference]: Without dead ends: 28663 [2021-11-03 05:28:25,977 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=194, Invalid=562, Unknown=0, NotChecked=0, Total=756 [2021-11-03 05:28:26,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28663 states. [2021-11-03 05:28:28,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28663 to 28628. [2021-11-03 05:28:28,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28628 states, 28577 states have (on average 1.196416698743745) internal successors, (34190), 28627 states have internal predecessors, (34190), 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 05:28:28,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28628 states to 28628 states and 34190 transitions. [2021-11-03 05:28:28,156 INFO L78 Accepts]: Start accepts. Automaton has 28628 states and 34190 transitions. Word has length 42 [2021-11-03 05:28:28,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:28:28,156 INFO L470 AbstractCegarLoop]: Abstraction has 28628 states and 34190 transitions. [2021-11-03 05:28:28,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 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 05:28:28,157 INFO L276 IsEmpty]: Start isEmpty. Operand 28628 states and 34190 transitions. [2021-11-03 05:28:28,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-03 05:28:28,157 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:28:28,157 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] [2021-11-03 05:28:28,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-03 05:28:28,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:28:28,361 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-03 05:28:28,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:28:28,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1376992653, now seen corresponding path program 1 times [2021-11-03 05:28:28,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:28:28,363 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [966512595] [2021-11-03 05:28:28,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:28:28,363 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:28:28,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:28:28,364 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:28:28,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-03 05:28:30,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:28:30,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 1042 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:28:30,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:28:30,500 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 05:28:30,500 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:28:30,764 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 05:28:30,764 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:28:30,764 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [966512595] [2021-11-03 05:28:30,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [966512595] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:28:30,764 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:28:30,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:28:30,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4591049] [2021-11-03 05:28:30,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:28:30,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:28:30,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:28:30,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:28:30,766 INFO L87 Difference]: Start difference. First operand 28628 states and 34190 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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 05:28:33,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:28:33,079 INFO L93 Difference]: Finished difference Result 28628 states and 34190 transitions. [2021-11-03 05:28:33,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:28:33,080 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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 43 [2021-11-03 05:28:33,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:28:33,119 INFO L225 Difference]: With dead ends: 28628 [2021-11-03 05:28:33,119 INFO L226 Difference]: Without dead ends: 28624 [2021-11-03 05:28:33,126 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:28:33,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28624 states. [2021-11-03 05:28:35,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28624 to 28624. [2021-11-03 05:28:35,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28624 states, 28575 states have (on average 1.1963604549431321) internal successors, (34186), 28623 states have internal predecessors, (34186), 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 05:28:35,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28624 states to 28624 states and 34186 transitions. [2021-11-03 05:28:35,389 INFO L78 Accepts]: Start accepts. Automaton has 28624 states and 34186 transitions. Word has length 43 [2021-11-03 05:28:35,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:28:35,389 INFO L470 AbstractCegarLoop]: Abstraction has 28624 states and 34186 transitions. [2021-11-03 05:28:35,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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 05:28:35,389 INFO L276 IsEmpty]: Start isEmpty. Operand 28624 states and 34186 transitions. [2021-11-03 05:28:35,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-03 05:28:35,390 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:28:35,391 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] [2021-11-03 05:28:35,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-03 05:28:35,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:28:35,594 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-03 05:28:35,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:28:35,594 INFO L85 PathProgramCache]: Analyzing trace with hash -437701130, now seen corresponding path program 1 times [2021-11-03 05:28:35,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:28:35,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1156433942] [2021-11-03 05:28:35,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:28:35,596 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:28:35,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:28:35,598 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:28:35,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-03 05:28:37,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:28:37,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 1045 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:28:37,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:28:37,895 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 05:28:37,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:28:38,163 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 05:28:38,163 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:28:38,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1156433942] [2021-11-03 05:28:38,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1156433942] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:28:38,164 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:28:38,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:28:38,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929390040] [2021-11-03 05:28:38,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:28:38,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:28:38,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:28:38,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:28:38,166 INFO L87 Difference]: Start difference. First operand 28624 states and 34186 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 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 05:28:40,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:28:40,961 INFO L93 Difference]: Finished difference Result 28624 states and 34186 transitions. [2021-11-03 05:28:40,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:28:40,961 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 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 45 [2021-11-03 05:28:40,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:28:41,000 INFO L225 Difference]: With dead ends: 28624 [2021-11-03 05:28:41,000 INFO L226 Difference]: Without dead ends: 28620 [2021-11-03 05:28:41,005 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:28:41,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28620 states. [2021-11-03 05:28:43,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28620 to 28620. [2021-11-03 05:28:43,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28620 states, 28573 states have (on average 1.1963042032688203) internal successors, (34182), 28619 states have internal predecessors, (34182), 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 05:28:43,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28620 states to 28620 states and 34182 transitions. [2021-11-03 05:28:43,374 INFO L78 Accepts]: Start accepts. Automaton has 28620 states and 34182 transitions. Word has length 45 [2021-11-03 05:28:43,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:28:43,374 INFO L470 AbstractCegarLoop]: Abstraction has 28620 states and 34182 transitions. [2021-11-03 05:28:43,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 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 05:28:43,374 INFO L276 IsEmpty]: Start isEmpty. Operand 28620 states and 34182 transitions. [2021-11-03 05:28:43,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-03 05:28:43,375 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:28:43,375 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] [2021-11-03 05:28:43,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-03 05:28:43,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:28:43,578 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-03 05:28:43,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:28:43,578 INFO L85 PathProgramCache]: Analyzing trace with hash 278320633, now seen corresponding path program 1 times [2021-11-03 05:28:43,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:28:43,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [273538923] [2021-11-03 05:28:43,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:28:43,580 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:28:43,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:28:43,581 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:28:43,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fef11715-fa72-44b1-8f1c-11a5c07b8454/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process