./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.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_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/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_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/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_d1933b82-f19d-4528-8298-a2e878158ed2/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 6c1be66de5de44f99e184f931232a9d8bcb0b8fd4712efbcede070913355a2c0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:52:55,875 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:52:55,879 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:52:55,945 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:52:55,946 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:52:55,951 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:52:55,953 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:52:55,957 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:52:55,960 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:52:55,966 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:52:55,967 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:52:55,970 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:52:55,970 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:52:55,973 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:52:55,976 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:52:55,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:52:55,984 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:52:55,985 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:52:55,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:52:55,997 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:52:55,999 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:52:56,001 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:52:56,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:52:56,005 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:52:56,015 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:52:56,016 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:52:56,020 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:52:56,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:52:56,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:52:56,025 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:52:56,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:52:56,027 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:52:56,029 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:52:56,030 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:52:56,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:52:56,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:52:56,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:52:56,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:52:56,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:52:56,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:52:56,036 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:52:56,037 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 00:52:56,090 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:52:56,090 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:52:56,092 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:52:56,093 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:52:56,093 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:52:56,093 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:52:56,093 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 00:52:56,093 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:52:56,101 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:52:56,101 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 00:52:56,102 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 00:52:56,103 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:52:56,103 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 00:52:56,103 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 00:52:56,103 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 00:52:56,104 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:52:56,105 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 00:52:56,105 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:52:56,105 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:52:56,105 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:52:56,105 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:52:56,106 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:52:56,106 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:52:56,106 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:52:56,106 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:52:56,107 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:52:56,107 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:52:56,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:52:56,107 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:52:56,109 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:52:56,109 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:52:56,110 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 00:52:56,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 00:52:56,110 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:52:56,111 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:52:56,111 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:52:56,111 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_d1933b82-f19d-4528-8298-a2e878158ed2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c1be66de5de44f99e184f931232a9d8bcb0b8fd4712efbcede070913355a2c0 [2021-11-07 00:52:56,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:52:56,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:52:56,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:52:56,531 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:52:56,532 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:52:56,533 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2021-11-07 00:52:56,641 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/data/a1393006c/a5301e87db7c4c1a950d267f15ee680c/FLAG9aab8857d [2021-11-07 00:52:57,849 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:52:57,851 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2021-11-07 00:52:57,914 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/data/a1393006c/a5301e87db7c4c1a950d267f15ee680c/FLAG9aab8857d [2021-11-07 00:52:58,112 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/data/a1393006c/a5301e87db7c4c1a950d267f15ee680c [2021-11-07 00:52:58,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:52:58,117 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:52:58,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:52:58,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:52:58,124 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:52:58,125 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:52:58" (1/1) ... [2021-11-07 00:52:58,127 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ca90dcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:58, skipping insertion in model container [2021-11-07 00:52:58,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:52:58" (1/1) ... [2021-11-07 00:52:58,137 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:52:58,326 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:53:01,311 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_d1933b82-f19d-4528-8298-a2e878158ed2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324559,324572] [2021-11-07 00:53:01,315 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_d1933b82-f19d-4528-8298-a2e878158ed2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324728,324741] [2021-11-07 00:53:01,316 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_d1933b82-f19d-4528-8298-a2e878158ed2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324895,324908] [2021-11-07 00:53:01,317 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_d1933b82-f19d-4528-8298-a2e878158ed2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[325063,325076] [2021-11-07 00:53:01,335 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:53:01,389 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 00:53:01,390 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@40f2cd8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:01, skipping insertion in model container [2021-11-07 00:53:01,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:53:01,391 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 00:53:01,394 INFO L168 Benchmark]: Toolchain (without parser) took 3274.83 ms. Allocated memory was 125.8 MB in the beginning and 169.9 MB in the end (delta: 44.0 MB). Free memory was 80.1 MB in the beginning and 104.5 MB in the end (delta: -24.4 MB). Peak memory consumption was 43.6 MB. Max. memory is 16.1 GB. [2021-11-07 00:53:01,395 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 90.2 MB. Free memory was 44.3 MB in the beginning and 44.2 MB in the end (delta: 45.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 00:53:01,397 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3271.08 ms. Allocated memory was 125.8 MB in the beginning and 169.9 MB in the end (delta: 44.0 MB). Free memory was 79.8 MB in the beginning and 104.5 MB in the end (delta: -24.7 MB). Peak memory consumption was 43.6 MB. Max. memory is 16.1 GB. [2021-11-07 00:53:01,400 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 90.2 MB. Free memory was 44.3 MB in the beginning and 44.2 MB in the end (delta: 45.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3271.08 ms. Allocated memory was 125.8 MB in the beginning and 169.9 MB in the end (delta: 44.0 MB). Free memory was 79.8 MB in the beginning and 104.5 MB in the end (delta: -24.7 MB). Peak memory consumption was 43.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7608]: 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_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/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_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/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_d1933b82-f19d-4528-8298-a2e878158ed2/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 6c1be66de5de44f99e184f931232a9d8bcb0b8fd4712efbcede070913355a2c0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:53:04,015 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:53:04,020 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:53:04,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:53:04,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:53:04,097 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:53:04,103 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:53:04,110 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:53:04,115 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:53:04,125 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:53:04,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:53:04,128 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:53:04,129 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:53:04,130 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:53:04,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:53:04,134 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:53:04,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:53:04,145 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:53:04,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:53:04,158 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:53:04,160 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:53:04,164 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:53:04,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:53:04,174 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:53:04,179 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:53:04,180 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:53:04,180 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:53:04,182 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:53:04,182 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:53:04,184 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:53:04,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:53:04,188 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:53:04,191 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:53:04,192 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:53:04,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:53:04,195 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:53:04,196 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:53:04,197 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:53:04,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:53:04,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:53:04,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:53:04,202 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 00:53:04,235 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:53:04,236 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:53:04,237 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:53:04,237 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:53:04,238 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:53:04,238 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:53:04,238 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:53:04,238 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:53:04,238 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:53:04,240 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:53:04,240 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:53:04,240 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:53:04,240 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:53:04,243 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:53:04,243 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:53:04,243 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 00:53:04,244 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 00:53:04,244 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:53:04,244 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:53:04,244 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:53:04,245 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:53:04,245 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 00:53:04,245 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:53:04,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:53:04,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:53:04,247 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:53:04,247 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:53:04,247 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 00:53:04,248 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 00:53:04,249 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:53:04,249 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:53:04,249 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:53:04,249 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_d1933b82-f19d-4528-8298-a2e878158ed2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c1be66de5de44f99e184f931232a9d8bcb0b8fd4712efbcede070913355a2c0 [2021-11-07 00:53:04,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:53:04,781 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:53:04,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:53:04,786 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:53:04,787 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:53:04,788 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2021-11-07 00:53:04,870 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/data/acfb523ca/c39a3b94b90c4c2e8f735b6788bf3e18/FLAGfcdbd034d [2021-11-07 00:53:06,009 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:53:06,011 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2021-11-07 00:53:06,093 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/data/acfb523ca/c39a3b94b90c4c2e8f735b6788bf3e18/FLAGfcdbd034d [2021-11-07 00:53:06,314 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/data/acfb523ca/c39a3b94b90c4c2e8f735b6788bf3e18 [2021-11-07 00:53:06,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:53:06,318 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:53:06,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:53:06,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:53:06,325 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:53:06,326 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:06" (1/1) ... [2021-11-07 00:53:06,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@93c8e62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:06, skipping insertion in model container [2021-11-07 00:53:06,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:06" (1/1) ... [2021-11-07 00:53:06,336 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:53:06,552 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:53:10,027 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_d1933b82-f19d-4528-8298-a2e878158ed2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324559,324572] [2021-11-07 00:53:10,030 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_d1933b82-f19d-4528-8298-a2e878158ed2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324728,324741] [2021-11-07 00:53:10,031 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_d1933b82-f19d-4528-8298-a2e878158ed2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324895,324908] [2021-11-07 00:53:10,032 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_d1933b82-f19d-4528-8298-a2e878158ed2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[325063,325076] [2021-11-07 00:53:10,049 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:53:10,092 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 00:53:10,205 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:53:10,653 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_d1933b82-f19d-4528-8298-a2e878158ed2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324559,324572] [2021-11-07 00:53:10,654 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_d1933b82-f19d-4528-8298-a2e878158ed2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324728,324741] [2021-11-07 00:53:10,654 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_d1933b82-f19d-4528-8298-a2e878158ed2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324895,324908] [2021-11-07 00:53:10,655 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_d1933b82-f19d-4528-8298-a2e878158ed2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[325063,325076] [2021-11-07 00:53:10,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:53:10,710 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 00:53:11,138 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_d1933b82-f19d-4528-8298-a2e878158ed2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324559,324572] [2021-11-07 00:53:11,139 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_d1933b82-f19d-4528-8298-a2e878158ed2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324728,324741] [2021-11-07 00:53:11,139 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_d1933b82-f19d-4528-8298-a2e878158ed2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324895,324908] [2021-11-07 00:53:11,140 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_d1933b82-f19d-4528-8298-a2e878158ed2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[325063,325076] [2021-11-07 00:53:11,149 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:53:11,376 INFO L208 MainTranslator]: Completed translation [2021-11-07 00:53:11,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:11 WrapperNode [2021-11-07 00:53:11,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:53:11,378 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 00:53:11,379 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 00:53:11,379 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 00:53:11,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:11" (1/1) ... [2021-11-07 00:53:11,519 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:11" (1/1) ... [2021-11-07 00:53:49,256 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 00:53:49,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 00:53:49,258 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 00:53:49,258 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 00:53:49,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:11" (1/1) ... [2021-11-07 00:53:49,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:11" (1/1) ... [2021-11-07 00:53:52,061 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:11" (1/1) ... [2021-11-07 00:53:52,065 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:11" (1/1) ... [2021-11-07 00:53:55,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:11" (1/1) ... [2021-11-07 00:53:57,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:11" (1/1) ... [2021-11-07 00:53:58,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:11" (1/1) ... [2021-11-07 00:54:00,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 00:54:00,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 00:54:00,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 00:54:00,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 00:54:00,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:11" (1/1) ... [2021-11-07 00:54:00,293 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:54:00,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:54:00,327 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 00:54:00,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 00:54:00,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 00:54:00,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 00:54:00,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 00:54:00,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 00:54:00,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 00:54:00,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 00:54:00,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-07 00:54:00,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-07 00:54:00,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-07 00:54:00,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-07 00:54:00,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 00:54:00,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 00:54:00,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 00:54:00,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 00:54:00,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 00:54:00,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 00:54:00,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 00:54:00,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 00:54:00,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 00:54:00,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 00:54:00,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 00:54:00,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 00:54:00,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 00:54:00,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 00:54:00,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 00:54:00,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-07 00:54:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-07 00:54:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 01:02:55,100 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_entry_EMGentry_10_returnLabel: main_#res := 0bv32; [2021-11-07 01:02:55,101 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L9598: #t~ret1175 := main_#res; [2021-11-07 01:02:55,103 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 01:02:55,125 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_pci_pci_instance_2_switch_break: call ULTIMATE.dealloc(ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.offset);havoc ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.offset; [2021-11-07 01:02:55,529 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:02:55,530 INFO L299 CfgBuilder]: Removed 81209 assume(true) statements. [2021-11-07 01:02:55,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:02:55 BoogieIcfgContainer [2021-11-07 01:02:55,586 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:02:55,588 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:02:55,589 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:02:55,592 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:02:55,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:53:06" (1/3) ... [2021-11-07 01:02:55,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b95bfd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:02:55, skipping insertion in model container [2021-11-07 01:02:55,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:11" (2/3) ... [2021-11-07 01:02:55,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b95bfd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:02:55, skipping insertion in model container [2021-11-07 01:02:55,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:02:55" (3/3) ... [2021-11-07 01:02:55,596 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2021-11-07 01:02:55,602 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:02:55,603 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2021-11-07 01:02:55,833 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:02:55,838 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:02:55,839 INFO L340 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2021-11-07 01:02:56,580 INFO L276 IsEmpty]: Start isEmpty. Operand has 61979 states, 61935 states have (on average 1.3685961088237668) internal successors, (84764), 61978 states have internal predecessors, (84764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:02:56,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-07 01:02:56,586 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:02:56,587 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:02:56,588 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-07 01:02:56,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:02:56,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1851717536, now seen corresponding path program 1 times [2021-11-07 01:02:56,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:02:56,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1207745294] [2021-11-07 01:02:56,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:02:56,613 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:02:56,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:02:56,616 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:02:56,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:02:59,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:02:59,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 1389 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 01:02:59,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:03:00,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:03:00,057 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:03:00,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:03:00,250 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:03:00,250 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1207745294] [2021-11-07 01:03:00,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1207745294] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:03:00,251 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:03:00,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2021-11-07 01:03:00,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327650292] [2021-11-07 01:03:00,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 01:03:00,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:03:00,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 01:03:00,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:03:00,351 INFO L87 Difference]: Start difference. First operand has 61979 states, 61935 states have (on average 1.3685961088237668) internal successors, (84764), 61978 states have internal predecessors, (84764), 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 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:03:05,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:03:05,757 INFO L93 Difference]: Finished difference Result 123992 states and 169570 transitions. [2021-11-07 01:03:05,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:03:05,770 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-11-07 01:03:05,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:03:06,076 INFO L225 Difference]: With dead ends: 123992 [2021-11-07 01:03:06,076 INFO L226 Difference]: Without dead ends: 61893 [2021-11-07 01:03:06,228 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2021-11-07 01:03:06,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61893 states. [2021-11-07 01:03:08,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61893 to 61832. [2021-11-07 01:03:08,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61832 states, 61788 states have (on average 1.3661228717550333) internal successors, (84410), 61831 states have internal predecessors, (84410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:03:08,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61832 states to 61832 states and 84410 transitions. [2021-11-07 01:03:08,503 INFO L78 Accepts]: Start accepts. Automaton has 61832 states and 84410 transitions. Word has length 25 [2021-11-07 01:03:08,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:03:08,503 INFO L470 AbstractCegarLoop]: Abstraction has 61832 states and 84410 transitions. [2021-11-07 01:03:08,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:03:08,505 INFO L276 IsEmpty]: Start isEmpty. Operand 61832 states and 84410 transitions. [2021-11-07 01:03:08,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-07 01:03:08,506 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:03:08,506 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:03:08,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-07 01:03:08,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:03:08,733 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-07 01:03:08,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:03:08,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1264911522, now seen corresponding path program 1 times [2021-11-07 01:03:08,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:03:08,739 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1432083292] [2021-11-07 01:03:08,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:03:08,739 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:03:08,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:03:08,743 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:03:08,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:03:11,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:03:11,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 1389 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:03:11,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:03:12,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:03:12,178 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:03:12,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:03:12,464 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:03:12,464 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1432083292] [2021-11-07 01:03:12,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1432083292] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:03:12,465 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:03:12,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:03:12,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753552710] [2021-11-07 01:03:12,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:03:12,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:03:12,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:03:12,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:03:12,468 INFO L87 Difference]: Start difference. First operand 61832 states and 84410 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:03:16,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:03:16,215 INFO L93 Difference]: Finished difference Result 61832 states and 84410 transitions. [2021-11-07 01:03:16,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:03:16,216 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-11-07 01:03:16,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:03:16,390 INFO L225 Difference]: With dead ends: 61832 [2021-11-07 01:03:16,390 INFO L226 Difference]: Without dead ends: 61828 [2021-11-07 01:03:16,406 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 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 01:03:16,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61828 states. [2021-11-07 01:03:18,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61828 to 61828. [2021-11-07 01:03:18,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61828 states, 61786 states have (on average 1.3661023532839154) internal successors, (84406), 61827 states have internal predecessors, (84406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:03:18,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61828 states to 61828 states and 84406 transitions. [2021-11-07 01:03:18,492 INFO L78 Accepts]: Start accepts. Automaton has 61828 states and 84406 transitions. Word has length 25 [2021-11-07 01:03:18,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:03:18,492 INFO L470 AbstractCegarLoop]: Abstraction has 61828 states and 84406 transitions. [2021-11-07 01:03:18,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:03:18,493 INFO L276 IsEmpty]: Start isEmpty. Operand 61828 states and 84406 transitions. [2021-11-07 01:03:18,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-07 01:03:18,494 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:03:18,495 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:03:18,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:03:18,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:03:18,717 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-07 01:03:18,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:03:18,718 INFO L85 PathProgramCache]: Analyzing trace with hash -97353087, now seen corresponding path program 1 times [2021-11-07 01:03:18,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:03:18,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1024457386] [2021-11-07 01:03:18,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:03:18,721 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:03:18,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:03:18,722 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:03:18,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:03:21,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:03:21,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 1392 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:03:21,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:03:21,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:03:21,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:03:21,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:03:21,994 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:03:21,994 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1024457386] [2021-11-07 01:03:21,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1024457386] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:03:21,995 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:03:21,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:03:21,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834258490] [2021-11-07 01:03:21,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:03:21,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:03:21,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:03:21,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:03:21,997 INFO L87 Difference]: Start difference. First operand 61828 states and 84406 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:03:24,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:03:24,522 INFO L93 Difference]: Finished difference Result 61828 states and 84406 transitions. [2021-11-07 01:03:24,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:03:24,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-07 01:03:24,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:03:24,687 INFO L225 Difference]: With dead ends: 61828 [2021-11-07 01:03:24,688 INFO L226 Difference]: Without dead ends: 61824 [2021-11-07 01:03:24,708 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:03:24,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61824 states. [2021-11-07 01:03:26,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61824 to 61824. [2021-11-07 01:03:26,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61824 states, 61784 states have (on average 1.3660818334843972) internal successors, (84402), 61823 states have internal predecessors, (84402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:03:26,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61824 states to 61824 states and 84402 transitions. [2021-11-07 01:03:26,672 INFO L78 Accepts]: Start accepts. Automaton has 61824 states and 84402 transitions. Word has length 27 [2021-11-07 01:03:26,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:03:26,672 INFO L470 AbstractCegarLoop]: Abstraction has 61824 states and 84402 transitions. [2021-11-07 01:03:26,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:03:26,674 INFO L276 IsEmpty]: Start isEmpty. Operand 61824 states and 84402 transitions. [2021-11-07 01:03:26,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-07 01:03:26,676 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:03:26,677 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:03:26,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:03:26,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:03:26,885 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-07 01:03:26,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:03:26,886 INFO L85 PathProgramCache]: Analyzing trace with hash 939839012, now seen corresponding path program 1 times [2021-11-07 01:03:26,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:03:26,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [890230594] [2021-11-07 01:03:26,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:03:26,888 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:03:26,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:03:26,889 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:03:26,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:03:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:03:29,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 1395 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:03:29,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:03:30,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:03:30,029 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:03:30,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:03:30,337 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:03:30,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [890230594] [2021-11-07 01:03:30,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [890230594] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:03:30,338 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:03:30,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:03:30,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60209653] [2021-11-07 01:03:30,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:03:30,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:03:30,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:03:30,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:03:30,340 INFO L87 Difference]: Start difference. First operand 61824 states and 84402 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:03:33,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:03:33,378 INFO L93 Difference]: Finished difference Result 61824 states and 84402 transitions. [2021-11-07 01:03:33,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:03:33,378 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-07 01:03:33,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:03:33,512 INFO L225 Difference]: With dead ends: 61824 [2021-11-07 01:03:33,513 INFO L226 Difference]: Without dead ends: 61820 [2021-11-07 01:03:33,531 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:03:33,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61820 states. [2021-11-07 01:03:35,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61820 to 61820. [2021-11-07 01:03:35,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61820 states, 61782 states have (on average 1.3660613123563496) internal successors, (84398), 61819 states have internal predecessors, (84398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:03:35,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61820 states to 61820 states and 84398 transitions. [2021-11-07 01:03:35,859 INFO L78 Accepts]: Start accepts. Automaton has 61820 states and 84398 transitions. Word has length 29 [2021-11-07 01:03:35,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:03:35,860 INFO L470 AbstractCegarLoop]: Abstraction has 61820 states and 84398 transitions. [2021-11-07 01:03:35,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:03:35,871 INFO L276 IsEmpty]: Start isEmpty. Operand 61820 states and 84398 transitions. [2021-11-07 01:03:35,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 01:03:35,873 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:03:35,874 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:03:35,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:03:36,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:03:36,089 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-07 01:03:36,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:03:36,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1249033799, now seen corresponding path program 1 times [2021-11-07 01:03:36,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:03:36,091 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1781048370] [2021-11-07 01:03:36,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:03:36,092 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:03:36,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:03:36,093 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:03:36,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1933b82-f19d-4528-8298-a2e878158ed2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:03:38,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:03:38,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 1398 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:03:38,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:03:39,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:03:39,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:03:39,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:03:39,578 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:03:39,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1781048370] [2021-11-07 01:03:39,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1781048370] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:03:39,579 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:03:39,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:03:39,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107652878] [2021-11-07 01:03:39,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:03:39,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:03:39,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:03:39,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:03:39,582 INFO L87 Difference]: Start difference. First operand 61820 states and 84398 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)