./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d4784d7b609e947942ffa9f8266acf243583adf996e2bcae78fb9e8c8fa71002 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:20:50,392 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:20:50,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:20:50,461 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:20:50,462 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:20:50,463 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:20:50,465 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:20:50,468 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:20:50,471 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:20:50,472 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:20:50,473 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:20:50,475 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:20:50,476 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:20:50,477 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:20:50,479 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:20:50,481 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:20:50,485 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:20:50,495 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:20:50,498 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:20:50,501 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:20:50,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:20:50,507 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:20:50,508 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:20:50,514 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:20:50,520 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:20:50,527 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:20:50,527 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:20:50,529 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:20:50,530 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:20:50,532 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:20:50,533 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:20:50,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:20:50,535 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:20:50,536 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:20:50,538 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:20:50,538 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:20:50,539 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:20:50,540 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:20:50,540 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:20:50,542 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:20:50,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:20:50,545 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 02:20:50,591 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:20:50,592 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:20:50,594 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:20:50,594 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:20:50,594 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:20:50,595 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:20:50,595 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:20:50,595 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:20:50,595 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:20:50,596 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:20:50,597 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:20:50,597 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:20:50,597 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:20:50,597 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:20:50,598 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:20:50,599 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:20:50,599 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:20:50,599 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:20:50,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:20:50,600 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:20:50,600 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:20:50,600 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:20:50,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:20:50,601 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:20:50,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:20:50,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:20:50,601 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:20:50,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:20:50,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:20:50,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:20:50,603 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:20:50,603 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:20:50,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:20:50,604 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:20:50,604 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:20:50,604 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:20:50,604 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_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4784d7b609e947942ffa9f8266acf243583adf996e2bcae78fb9e8c8fa71002 [2021-11-07 02:20:50,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:20:50,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:20:50,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:20:50,947 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:20:50,948 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:20:50,949 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i [2021-11-07 02:20:51,014 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/data/1d2accb8d/09ae54ae2a4e477b83f87030b7f0b763/FLAGe585bbf72 [2021-11-07 02:20:52,003 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:20:52,004 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i [2021-11-07 02:20:52,066 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/data/1d2accb8d/09ae54ae2a4e477b83f87030b7f0b763/FLAGe585bbf72 [2021-11-07 02:20:52,368 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/data/1d2accb8d/09ae54ae2a4e477b83f87030b7f0b763 [2021-11-07 02:20:52,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:20:52,373 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:20:52,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:20:52,375 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:20:52,379 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:20:52,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:20:52" (1/1) ... [2021-11-07 02:20:52,382 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10a13c1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:20:52, skipping insertion in model container [2021-11-07 02:20:52,382 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:20:52" (1/1) ... [2021-11-07 02:20:52,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:20:52,610 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:20:54,842 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:20:54,846 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:20:56,136 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_4332da27-d794-4298-b68b-cb5061aa1795/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349228,349241] [2021-11-07 02:20:56,142 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_4332da27-d794-4298-b68b-cb5061aa1795/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349397,349410] [2021-11-07 02:20:56,142 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_4332da27-d794-4298-b68b-cb5061aa1795/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349564,349577] [2021-11-07 02:20:56,143 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_4332da27-d794-4298-b68b-cb5061aa1795/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349732,349745] [2021-11-07 02:20:56,172 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:20:56,231 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 02:20:56,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@151412dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:20:56, skipping insertion in model container [2021-11-07 02:20:56,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:20:56,232 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 02:20:56,235 INFO L168 Benchmark]: Toolchain (without parser) took 3860.08 ms. Allocated memory was 115.3 MB in the beginning and 165.7 MB in the end (delta: 50.3 MB). Free memory was 65.2 MB in the beginning and 93.7 MB in the end (delta: -28.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 16.1 GB. [2021-11-07 02:20:56,235 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 115.3 MB. Free memory is still 96.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:20:56,237 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3856.99 ms. Allocated memory was 115.3 MB in the beginning and 165.7 MB in the end (delta: 50.3 MB). Free memory was 65.0 MB in the beginning and 93.7 MB in the end (delta: -28.7 MB). Peak memory consumption was 29.5 MB. Max. memory is 16.1 GB. [2021-11-07 02:20:56,239 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 115.3 MB. Free memory is still 96.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3856.99 ms. Allocated memory was 115.3 MB in the beginning and 165.7 MB in the end (delta: 50.3 MB). Free memory was 65.0 MB in the beginning and 93.7 MB in the end (delta: -28.7 MB). Peak memory consumption was 29.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6182]: 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_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d4784d7b609e947942ffa9f8266acf243583adf996e2bcae78fb9e8c8fa71002 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:20:58,677 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:20:58,681 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:20:58,757 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:20:58,757 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:20:58,762 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:20:58,765 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:20:58,771 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:20:58,775 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:20:58,787 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:20:58,788 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:20:58,791 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:20:58,792 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:20:58,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:20:58,797 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:20:58,802 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:20:58,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:20:58,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:20:58,813 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:20:58,818 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:20:58,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:20:58,826 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:20:58,830 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:20:58,832 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:20:58,840 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:20:58,845 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:20:58,846 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:20:58,847 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:20:58,849 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:20:58,850 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:20:58,851 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:20:58,852 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:20:58,854 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:20:58,855 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:20:58,856 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:20:58,857 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:20:58,858 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:20:58,858 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:20:58,858 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:20:58,860 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:20:58,861 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:20:58,862 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 02:20:58,905 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:20:58,905 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:20:58,906 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:20:58,907 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:20:58,907 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:20:58,907 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:20:58,907 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:20:58,908 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:20:58,908 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:20:58,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:20:58,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:20:58,911 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:20:58,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:20:58,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:20:58,911 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:20:58,912 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:20:58,912 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:20:58,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:20:58,912 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:20:58,913 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:20:58,913 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:20:58,913 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:20:58,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:20:58,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:20:58,914 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:20:58,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:20:58,914 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:20:58,915 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:20:58,915 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:20:58,915 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:20:58,915 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:20:58,916 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:20:58,916 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_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4784d7b609e947942ffa9f8266acf243583adf996e2bcae78fb9e8c8fa71002 [2021-11-07 02:20:59,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:20:59,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:20:59,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:20:59,343 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:20:59,343 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:20:59,344 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i [2021-11-07 02:20:59,424 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/data/efd2328d8/e74762865c664bde968067275607716d/FLAG5bb76bf78 [2021-11-07 02:21:00,539 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:21:00,540 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i [2021-11-07 02:21:00,590 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/data/efd2328d8/e74762865c664bde968067275607716d/FLAG5bb76bf78 [2021-11-07 02:21:00,811 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/data/efd2328d8/e74762865c664bde968067275607716d [2021-11-07 02:21:00,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:21:00,814 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:21:00,815 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:21:00,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:21:00,819 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:21:00,819 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:21:00" (1/1) ... [2021-11-07 02:21:00,821 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b8e8077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:00, skipping insertion in model container [2021-11-07 02:21:00,821 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:21:00" (1/1) ... [2021-11-07 02:21:00,828 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:21:01,005 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:21:04,393 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_4332da27-d794-4298-b68b-cb5061aa1795/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349228,349241] [2021-11-07 02:21:04,396 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_4332da27-d794-4298-b68b-cb5061aa1795/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349397,349410] [2021-11-07 02:21:04,397 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_4332da27-d794-4298-b68b-cb5061aa1795/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349564,349577] [2021-11-07 02:21:04,398 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_4332da27-d794-4298-b68b-cb5061aa1795/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349732,349745] [2021-11-07 02:21:04,428 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:21:04,553 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 02:21:04,683 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:21:05,173 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_4332da27-d794-4298-b68b-cb5061aa1795/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349228,349241] [2021-11-07 02:21:05,173 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_4332da27-d794-4298-b68b-cb5061aa1795/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349397,349410] [2021-11-07 02:21:05,174 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_4332da27-d794-4298-b68b-cb5061aa1795/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349564,349577] [2021-11-07 02:21:05,174 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_4332da27-d794-4298-b68b-cb5061aa1795/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349732,349745] [2021-11-07 02:21:05,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:21:05,234 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:21:05,730 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_4332da27-d794-4298-b68b-cb5061aa1795/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349228,349241] [2021-11-07 02:21:05,731 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_4332da27-d794-4298-b68b-cb5061aa1795/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349397,349410] [2021-11-07 02:21:05,731 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_4332da27-d794-4298-b68b-cb5061aa1795/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349564,349577] [2021-11-07 02:21:05,732 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_4332da27-d794-4298-b68b-cb5061aa1795/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349732,349745] [2021-11-07 02:21:05,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:21:06,176 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:21:06,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:06 WrapperNode [2021-11-07 02:21:06,177 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:21:06,178 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:21:06,178 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:21:06,179 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:21:06,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:06" (1/1) ... [2021-11-07 02:21:06,332 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:06" (1/1) ... [2021-11-07 02:21:06,928 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:21:06,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:21:06,929 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:21:06,930 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:21:06,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:06" (1/1) ... [2021-11-07 02:21:06,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:06" (1/1) ... [2021-11-07 02:21:07,220 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:06" (1/1) ... [2021-11-07 02:21:07,223 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:06" (1/1) ... [2021-11-07 02:21:07,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:06" (1/1) ... [2021-11-07 02:21:07,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:06" (1/1) ... [2021-11-07 02:21:07,966 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:06" (1/1) ... [2021-11-07 02:21:08,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:21:08,083 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:21:08,083 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:21:08,084 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:21:08,084 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:06" (1/1) ... [2021-11-07 02:21:08,091 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:21:08,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:21:08,115 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:21:08,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:21:08,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 02:21:08,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:21:08,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 02:21:08,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 02:21:08,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 02:21:08,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 02:21:08,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-07 02:21:08,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-07 02:21:08,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-07 02:21:08,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-07 02:21:08,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:21:08,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:21:08,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 02:21:08,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 02:21:08,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 02:21:08,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 02:21:08,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-07 02:21:08,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 02:21:08,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:21:08,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 02:21:08,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 02:21:08,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 02:21:08,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 02:21:08,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 02:21:08,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 02:21:08,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 02:21:08,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-07 02:21:08,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-07 02:21:08,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 02:24:57,713 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0bv32; [2021-11-07 02:24:57,714 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0bv32; [2021-11-07 02:24:57,714 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0bv32; [2021-11-07 02:24:57,715 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0bv32; [2021-11-07 02:24:57,716 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0bv32; [2021-11-07 02:24:57,716 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 02:24:57,762 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:24:57,762 INFO L299 CfgBuilder]: Removed 4962 assume(true) statements. [2021-11-07 02:24:57,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:24:57 BoogieIcfgContainer [2021-11-07 02:24:57,769 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:24:57,771 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:24:57,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:24:57,775 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:24:57,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:21:00" (1/3) ... [2021-11-07 02:24:57,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@616cf51b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:24:57, skipping insertion in model container [2021-11-07 02:24:57,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:06" (2/3) ... [2021-11-07 02:24:57,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@616cf51b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:24:57, skipping insertion in model container [2021-11-07 02:24:57,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:24:57" (3/3) ... [2021-11-07 02:24:57,779 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i [2021-11-07 02:24:57,785 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:24:57,785 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 79 error locations. [2021-11-07 02:24:57,874 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:24:57,880 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 02:24:57,881 INFO L340 AbstractCegarLoop]: Starting to check reachability of 79 error locations. [2021-11-07 02:24:57,982 INFO L276 IsEmpty]: Start isEmpty. Operand has 4352 states, 4273 states have (on average 1.3213199157500586) internal successors, (5646), 4351 states have internal predecessors, (5646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:24:57,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-07 02:24:57,995 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:24:57,996 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:24:57,996 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-07 02:24:58,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:24:58,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1806629518, now seen corresponding path program 1 times [2021-11-07 02:24:58,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:24:58,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1312333135] [2021-11-07 02:24:58,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:58,032 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:24:58,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:24:58,035 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:24:58,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:25:01,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:25:01,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 1638 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:25:01,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:01,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:01,808 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:02,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:02,048 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:25:02,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1312333135] [2021-11-07 02:25:02,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1312333135] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:25:02,049 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:25:02,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:25:02,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772036286] [2021-11-07 02:25:02,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:25:02,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:25:02,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:25:02,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:25:02,102 INFO L87 Difference]: Start difference. First operand has 4352 states, 4273 states have (on average 1.3213199157500586) internal successors, (5646), 4351 states have internal predecessors, (5646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:05,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:25:05,513 INFO L93 Difference]: Finished difference Result 16412 states and 21307 transitions. [2021-11-07 02:25:05,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:25:05,515 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 57 [2021-11-07 02:25:05,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:25:05,630 INFO L225 Difference]: With dead ends: 16412 [2021-11-07 02:25:05,631 INFO L226 Difference]: Without dead ends: 11744 [2021-11-07 02:25:05,659 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:25:05,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11744 states. [2021-11-07 02:25:06,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11744 to 11584. [2021-11-07 02:25:06,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11584 states, 11505 states have (on average 1.2622338113863538) internal successors, (14522), 11583 states have internal predecessors, (14522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:06,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11584 states to 11584 states and 14522 transitions. [2021-11-07 02:25:06,316 INFO L78 Accepts]: Start accepts. Automaton has 11584 states and 14522 transitions. Word has length 57 [2021-11-07 02:25:06,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:25:06,319 INFO L470 AbstractCegarLoop]: Abstraction has 11584 states and 14522 transitions. [2021-11-07 02:25:06,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:06,319 INFO L276 IsEmpty]: Start isEmpty. Operand 11584 states and 14522 transitions. [2021-11-07 02:25:06,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-07 02:25:06,330 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:25:06,331 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:25:06,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 02:25:06,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:25:06,532 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-07 02:25:06,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:25:06,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1518682448, now seen corresponding path program 1 times [2021-11-07 02:25:06,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:25:06,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1433550624] [2021-11-07 02:25:06,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:25:06,539 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:25:06,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:25:06,541 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:25:06,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:25:09,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:25:10,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 1647 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:25:10,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:10,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:10,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:10,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:10,534 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:25:10,534 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1433550624] [2021-11-07 02:25:10,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1433550624] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:25:10,535 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:25:10,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 02:25:10,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339180543] [2021-11-07 02:25:10,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:25:10,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:25:10,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:25:10,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:25:10,539 INFO L87 Difference]: Start difference. First operand 11584 states and 14522 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:14,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:25:14,123 INFO L93 Difference]: Finished difference Result 31737 states and 39784 transitions. [2021-11-07 02:25:14,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:25:14,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 63 [2021-11-07 02:25:14,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:25:14,267 INFO L225 Difference]: With dead ends: 31737 [2021-11-07 02:25:14,267 INFO L226 Difference]: Without dead ends: 20261 [2021-11-07 02:25:14,298 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:25:14,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20261 states. [2021-11-07 02:25:15,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20261 to 19267. [2021-11-07 02:25:15,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19267 states, 19188 states have (on average 1.2636022514071295) internal successors, (24246), 19266 states have internal predecessors, (24246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:15,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19267 states to 19267 states and 24246 transitions. [2021-11-07 02:25:15,543 INFO L78 Accepts]: Start accepts. Automaton has 19267 states and 24246 transitions. Word has length 63 [2021-11-07 02:25:15,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:25:15,544 INFO L470 AbstractCegarLoop]: Abstraction has 19267 states and 24246 transitions. [2021-11-07 02:25:15,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:15,545 INFO L276 IsEmpty]: Start isEmpty. Operand 19267 states and 24246 transitions. [2021-11-07 02:25:15,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-07 02:25:15,547 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:25:15,547 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:25:15,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 02:25:15,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:25:15,765 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-07 02:25:15,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:25:15,765 INFO L85 PathProgramCache]: Analyzing trace with hash -578711267, now seen corresponding path program 1 times [2021-11-07 02:25:15,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:25:15,769 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1363537773] [2021-11-07 02:25:15,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:25:15,770 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:25:15,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:25:15,771 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:25:15,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 02:25:19,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:25:19,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 1668 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:25:19,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:19,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:19,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:20,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:20,130 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:25:20,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1363537773] [2021-11-07 02:25:20,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1363537773] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:25:20,131 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:25:20,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:25:20,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189756065] [2021-11-07 02:25:20,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:25:20,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:25:20,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:25:20,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:25:20,133 INFO L87 Difference]: Start difference. First operand 19267 states and 24246 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:25,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:25:25,488 INFO L93 Difference]: Finished difference Result 70228 states and 88467 transitions. [2021-11-07 02:25:25,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:25:25,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-11-07 02:25:25,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:25:25,663 INFO L225 Difference]: With dead ends: 70228 [2021-11-07 02:25:25,663 INFO L226 Difference]: Without dead ends: 51069 [2021-11-07 02:25:25,716 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:25:25,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51069 states. [2021-11-07 02:25:28,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51069 to 48811. [2021-11-07 02:25:28,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48811 states, 48732 states have (on average 1.268858245095625) internal successors, (61834), 48810 states have internal predecessors, (61834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:28,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48811 states to 48811 states and 61834 transitions. [2021-11-07 02:25:28,638 INFO L78 Accepts]: Start accepts. Automaton has 48811 states and 61834 transitions. Word has length 64 [2021-11-07 02:25:28,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:25:28,648 INFO L470 AbstractCegarLoop]: Abstraction has 48811 states and 61834 transitions. [2021-11-07 02:25:28,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:28,649 INFO L276 IsEmpty]: Start isEmpty. Operand 48811 states and 61834 transitions. [2021-11-07 02:25:28,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-07 02:25:28,652 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:25:28,653 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:25:28,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 02:25:28,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:25:28,864 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr65ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-07 02:25:28,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:25:28,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1120258482, now seen corresponding path program 1 times [2021-11-07 02:25:28,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:25:28,869 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [720937542] [2021-11-07 02:25:28,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:25:28,869 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:25:28,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:25:28,872 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:25:28,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 02:25:32,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:25:32,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 1704 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:25:32,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:33,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:33,015 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:33,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:33,320 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:25:33,320 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [720937542] [2021-11-07 02:25:33,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [720937542] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:25:33,321 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:25:33,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:25:33,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553391173] [2021-11-07 02:25:33,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:25:33,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:25:33,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:25:33,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:25:33,323 INFO L87 Difference]: Start difference. First operand 48811 states and 61834 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:38,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:25:38,468 INFO L93 Difference]: Finished difference Result 102796 states and 130633 transitions. [2021-11-07 02:25:38,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:25:38,470 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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 71 [2021-11-07 02:25:38,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:25:38,657 INFO L225 Difference]: With dead ends: 102796 [2021-11-07 02:25:38,658 INFO L226 Difference]: Without dead ends: 54093 [2021-11-07 02:25:38,771 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:25:38,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54093 states. [2021-11-07 02:25:41,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54093 to 53817. [2021-11-07 02:25:41,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53817 states, 53738 states have (on average 1.2742193606014367) internal successors, (68474), 53816 states have internal predecessors, (68474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:41,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53817 states to 53817 states and 68474 transitions. [2021-11-07 02:25:41,247 INFO L78 Accepts]: Start accepts. Automaton has 53817 states and 68474 transitions. Word has length 71 [2021-11-07 02:25:41,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:25:41,247 INFO L470 AbstractCegarLoop]: Abstraction has 53817 states and 68474 transitions. [2021-11-07 02:25:41,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:41,248 INFO L276 IsEmpty]: Start isEmpty. Operand 53817 states and 68474 transitions. [2021-11-07 02:25:41,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-07 02:25:41,251 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:25:41,251 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:25:41,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 02:25:41,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:25:41,476 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-07 02:25:41,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:25:41,477 INFO L85 PathProgramCache]: Analyzing trace with hash 263954766, now seen corresponding path program 1 times [2021-11-07 02:25:41,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:25:41,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [607256340] [2021-11-07 02:25:41,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:25:41,481 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:25:41,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:25:41,483 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:25:41,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 02:25:44,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:25:44,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 1730 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:25:44,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:45,266 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:45,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:45,523 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:45,523 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:25:45,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [607256340] [2021-11-07 02:25:45,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [607256340] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:25:45,523 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:25:45,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:25:45,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885013677] [2021-11-07 02:25:45,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:25:45,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:25:45,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:25:45,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:25:45,525 INFO L87 Difference]: Start difference. First operand 53817 states and 68474 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:51,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:25:51,826 INFO L93 Difference]: Finished difference Result 159889 states and 203537 transitions. [2021-11-07 02:25:51,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:25:51,826 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 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 87 [2021-11-07 02:25:51,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:25:52,180 INFO L225 Difference]: With dead ends: 159889 [2021-11-07 02:25:52,180 INFO L226 Difference]: Without dead ends: 106505 [2021-11-07 02:25:52,336 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:25:52,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106505 states. [2021-11-07 02:25:56,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106505 to 106345. [2021-11-07 02:25:56,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106345 states, 106266 states have (on average 1.2743869158526715) internal successors, (135424), 106344 states have internal predecessors, (135424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:57,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106345 states to 106345 states and 135424 transitions. [2021-11-07 02:25:57,280 INFO L78 Accepts]: Start accepts. Automaton has 106345 states and 135424 transitions. Word has length 87 [2021-11-07 02:25:57,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:25:57,281 INFO L470 AbstractCegarLoop]: Abstraction has 106345 states and 135424 transitions. [2021-11-07 02:25:57,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:57,282 INFO L276 IsEmpty]: Start isEmpty. Operand 106345 states and 135424 transitions. [2021-11-07 02:25:57,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-07 02:25:57,285 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:25:57,285 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:25:57,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 02:25:57,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:25:57,486 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-07 02:25:57,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:25:57,487 INFO L85 PathProgramCache]: Analyzing trace with hash 496418719, now seen corresponding path program 1 times [2021-11-07 02:25:57,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:25:57,490 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [395834390] [2021-11-07 02:25:57,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:25:57,491 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:25:57,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:25:57,492 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:25:57,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 02:26:00,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:26:00,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 1701 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:26:00,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:26:01,610 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 02:26:01,610 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:26:02,355 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 02:26:02,356 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:26:02,356 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [395834390] [2021-11-07 02:26:02,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [395834390] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:26:02,356 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:26:02,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:26:02,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672777078] [2021-11-07 02:26:02,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:26:02,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:26:02,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:26:02,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:26:02,358 INFO L87 Difference]: Start difference. First operand 106345 states and 135424 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:26:07,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:26:07,156 INFO L93 Difference]: Finished difference Result 106345 states and 135424 transitions. [2021-11-07 02:26:07,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:26:07,157 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 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 87 [2021-11-07 02:26:07,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:26:07,449 INFO L225 Difference]: With dead ends: 106345 [2021-11-07 02:26:07,449 INFO L226 Difference]: Without dead ends: 106339 [2021-11-07 02:26:07,475 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:26:07,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106339 states. [2021-11-07 02:26:12,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106339 to 106339. [2021-11-07 02:26:12,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106339 states, 106263 states have (on average 1.274366430460273) internal successors, (135418), 106338 states have internal predecessors, (135418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:26:12,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106339 states to 106339 states and 135418 transitions. [2021-11-07 02:26:12,580 INFO L78 Accepts]: Start accepts. Automaton has 106339 states and 135418 transitions. Word has length 87 [2021-11-07 02:26:12,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:26:12,580 INFO L470 AbstractCegarLoop]: Abstraction has 106339 states and 135418 transitions. [2021-11-07 02:26:12,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:26:12,581 INFO L276 IsEmpty]: Start isEmpty. Operand 106339 states and 135418 transitions. [2021-11-07 02:26:12,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-07 02:26:12,583 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:26:12,584 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:26:12,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 02:26:12,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:26:12,788 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-07 02:26:12,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:26:12,789 INFO L85 PathProgramCache]: Analyzing trace with hash 317170018, now seen corresponding path program 1 times [2021-11-07 02:26:12,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:26:12,792 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649313442] [2021-11-07 02:26:12,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:26:12,793 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:26:12,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:26:12,796 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:26:12,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4332da27-d794-4298-b68b-cb5061aa1795/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process