./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4295d1eb99eb4c4e306792d8730363a971cf6332e7c089b8c1be6cbddd5edcb9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:55:17,958 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:55:17,961 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:55:18,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:55:18,021 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:55:18,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:55:18,027 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:55:18,031 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:55:18,034 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:55:18,042 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:55:18,044 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:55:18,045 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:55:18,046 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:55:18,049 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:55:18,051 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:55:18,058 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:55:18,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:55:18,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:55:18,064 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:55:18,074 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:55:18,076 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:55:18,077 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:55:18,081 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:55:18,082 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:55:18,091 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:55:18,091 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:55:18,092 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:55:18,094 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:55:18,094 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:55:18,096 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:55:18,096 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:55:18,097 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:55:18,100 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:55:18,101 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:55:18,102 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:55:18,103 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:55:18,103 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:55:18,104 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:55:18,104 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:55:18,105 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:55:18,106 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:55:18,107 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 03:55:18,155 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:55:18,155 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:55:18,157 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:55:18,157 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:55:18,157 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:55:18,157 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:55:18,158 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 03:55:18,158 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:55:18,164 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:55:18,165 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 03:55:18,166 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 03:55:18,166 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:55:18,166 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 03:55:18,167 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 03:55:18,167 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 03:55:18,168 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:55:18,168 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 03:55:18,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:55:18,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:55:18,168 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:55:18,169 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:55:18,169 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:55:18,169 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:55:18,169 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:55:18,169 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:55:18,170 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:55:18,170 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:55:18,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:55:18,170 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:55:18,172 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:55:18,173 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:55:18,173 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 03:55:18,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 03:55:18,173 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:55:18,173 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:55:18,174 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:55:18,174 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_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4295d1eb99eb4c4e306792d8730363a971cf6332e7c089b8c1be6cbddd5edcb9 [2021-11-03 03:55:18,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:55:18,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:55:18,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:55:18,548 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:55:18,549 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:55:18,550 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-03 03:55:18,620 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/data/7dac04710/ae3abc6ff20c4942a8a86b5cf25714a5/FLAG2316eacb2 [2021-11-03 03:55:19,886 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:55:19,888 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-03 03:55:19,966 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/data/7dac04710/ae3abc6ff20c4942a8a86b5cf25714a5/FLAG2316eacb2 [2021-11-03 03:55:20,052 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/data/7dac04710/ae3abc6ff20c4942a8a86b5cf25714a5 [2021-11-03 03:55:20,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:55:20,057 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:55:20,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:55:20,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:55:20,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:55:20,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:55:20" (1/1) ... [2021-11-03 03:55:20,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b61a872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:20, skipping insertion in model container [2021-11-03 03:55:20,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:55:20" (1/1) ... [2021-11-03 03:55:20,075 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:55:20,302 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:55:23,853 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 03:55:23,913 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 03:55:23,914 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 03:55:24,002 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 03:55:24,080 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 03:55:25,767 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_b45cad99-40ff-40c4-b6b4-f7d079911fdb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[487689,487702] [2021-11-03 03:55:25,774 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_b45cad99-40ff-40c4-b6b4-f7d079911fdb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[487834,487847] [2021-11-03 03:55:25,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:55:25,911 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-03 03:55:25,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2d215310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:25, skipping insertion in model container [2021-11-03 03:55:25,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:55:25,913 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 03:55:25,916 INFO L168 Benchmark]: Toolchain (without parser) took 5856.15 ms. Allocated memory was 109.1 MB in the beginning and 144.7 MB in the end (delta: 35.7 MB). Free memory was 69.1 MB in the beginning and 54.6 MB in the end (delta: 14.4 MB). Peak memory consumption was 58.8 MB. Max. memory is 16.1 GB. [2021-11-03 03:55:25,917 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 109.1 MB. Free memory is still 83.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:55:25,918 INFO L168 Benchmark]: CACSL2BoogieTranslator took 5852.44 ms. Allocated memory was 109.1 MB in the beginning and 144.7 MB in the end (delta: 35.7 MB). Free memory was 68.8 MB in the beginning and 54.6 MB in the end (delta: 14.2 MB). Peak memory consumption was 58.8 MB. Max. memory is 16.1 GB. [2021-11-03 03:55:25,920 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 109.1 MB. Free memory is still 83.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 5852.44 ms. Allocated memory was 109.1 MB in the beginning and 144.7 MB in the end (delta: 35.7 MB). Free memory was 68.8 MB in the beginning and 54.6 MB in the end (delta: 14.2 MB). Peak memory consumption was 58.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7052]: 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_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4295d1eb99eb4c4e306792d8730363a971cf6332e7c089b8c1be6cbddd5edcb9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:55:28,221 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:55:28,224 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:55:28,308 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:55:28,309 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:55:28,314 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:55:28,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:55:28,322 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:55:28,326 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:55:28,335 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:55:28,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:55:28,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:55:28,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:55:28,343 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:55:28,346 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:55:28,351 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:55:28,354 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:55:28,355 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:55:28,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:55:28,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:55:28,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:55:28,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:55:28,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:55:28,378 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:55:28,389 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:55:28,390 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:55:28,391 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:55:28,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:55:28,394 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:55:28,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:55:28,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:55:28,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:55:28,400 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:55:28,401 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:55:28,403 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:55:28,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:55:28,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:55:28,406 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:55:28,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:55:28,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:55:28,409 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:55:28,410 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 03:55:28,459 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:55:28,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:55:28,461 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:55:28,461 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:55:28,462 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:55:28,462 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:55:28,462 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:55:28,462 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:55:28,463 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:55:28,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:55:28,466 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:55:28,466 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:55:28,466 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:55:28,466 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:55:28,467 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:55:28,467 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 03:55:28,467 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 03:55:28,468 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:55:28,468 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:55:28,468 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:55:28,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:55:28,469 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 03:55:28,469 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:55:28,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:55:28,470 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:55:28,470 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:55:28,470 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:55:28,470 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 03:55:28,471 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 03:55:28,471 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:55:28,471 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:55:28,471 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:55:28,472 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_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4295d1eb99eb4c4e306792d8730363a971cf6332e7c089b8c1be6cbddd5edcb9 [2021-11-03 03:55:28,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:55:28,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:55:28,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:55:28,973 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:55:28,974 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:55:28,975 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-03 03:55:29,076 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/data/4b401aba6/a9b6b8304c2e41fcb4b8bbebffff5876/FLAG0162f39a5 [2021-11-03 03:55:30,371 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:55:30,372 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-03 03:55:30,460 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/data/4b401aba6/a9b6b8304c2e41fcb4b8bbebffff5876/FLAG0162f39a5 [2021-11-03 03:55:30,560 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/data/4b401aba6/a9b6b8304c2e41fcb4b8bbebffff5876 [2021-11-03 03:55:30,562 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:55:30,563 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:55:30,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:55:30,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:55:30,583 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:55:30,584 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:55:30" (1/1) ... [2021-11-03 03:55:30,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a2a859d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:30, skipping insertion in model container [2021-11-03 03:55:30,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:55:30" (1/1) ... [2021-11-03 03:55:30,594 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:55:30,860 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:55:36,180 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_b45cad99-40ff-40c4-b6b4-f7d079911fdb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[487689,487702] [2021-11-03 03:55:36,185 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_b45cad99-40ff-40c4-b6b4-f7d079911fdb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[487834,487847] [2021-11-03 03:55:36,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:55:36,305 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 03:55:36,415 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:55:36,951 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_b45cad99-40ff-40c4-b6b4-f7d079911fdb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[487689,487702] [2021-11-03 03:55:36,953 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_b45cad99-40ff-40c4-b6b4-f7d079911fdb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[487834,487847] [2021-11-03 03:55:36,963 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:55:37,056 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:55:37,569 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_b45cad99-40ff-40c4-b6b4-f7d079911fdb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[487689,487702] [2021-11-03 03:55:37,570 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_b45cad99-40ff-40c4-b6b4-f7d079911fdb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[487834,487847] [2021-11-03 03:55:37,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:55:38,197 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:55:38,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:38 WrapperNode [2021-11-03 03:55:38,198 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:55:38,200 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:55:38,200 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:55:38,200 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:55:38,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:38" (1/1) ... [2021-11-03 03:55:38,405 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:38" (1/1) ... [2021-11-03 03:55:40,028 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:55:40,029 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:55:40,029 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:55:40,029 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:55:40,039 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:38" (1/1) ... [2021-11-03 03:55:40,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:38" (1/1) ... [2021-11-03 03:55:40,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:38" (1/1) ... [2021-11-03 03:55:40,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:38" (1/1) ... [2021-11-03 03:55:41,587 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:38" (1/1) ... [2021-11-03 03:55:41,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:38" (1/1) ... [2021-11-03 03:55:41,971 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:38" (1/1) ... [2021-11-03 03:55:42,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:55:42,296 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:55:42,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:55:42,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:55:42,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:38" (1/1) ... [2021-11-03 03:55:42,310 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:55:42,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:55:42,346 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:55:42,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:55:42,408 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw_vf [2021-11-03 03:55:42,409 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw_vf [2021-11-03 03:55:42,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 03:55:42,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 03:55:42,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 03:55:42,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 03:55:42,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 03:55:42,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 03:55:42,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-03 03:55:42,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-03 03:55:42,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-03 03:55:42,636 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_posted_mbx [2021-11-03 03:55:42,636 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_posted_mbx [2021-11-03 03:55:42,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-03 03:55:42,636 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_hw_vf [2021-11-03 03:55:42,636 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_hw_vf [2021-11-03 03:55:42,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:55:42,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:55:42,637 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_ack [2021-11-03 03:55:42,637 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_ack [2021-11-03 03:55:42,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 03:55:42,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 03:55:42,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 03:55:42,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 03:55:42,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-03 03:55:42,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 03:55:42,637 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set_vf [2021-11-03 03:55:42,637 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set_vf [2021-11-03 03:55:42,638 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link_vf [2021-11-03 03:55:42,638 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link_vf [2021-11-03 03:55:42,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:55:42,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 03:55:42,638 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~s32~0 [2021-11-03 03:55:42,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~s32~0 [2021-11-03 03:55:42,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 03:55:42,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 03:55:42,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-03 03:55:42,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 03:55:42,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 03:55:42,639 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2021-11-03 03:55:42,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2021-11-03 03:55:42,639 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_msg [2021-11-03 03:55:42,639 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_msg [2021-11-03 03:55:42,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-03 03:55:42,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-03 03:55:42,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-03 03:55:42,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-03 03:55:42,640 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_posted_mbx [2021-11-03 03:55:42,640 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_posted_mbx [2021-11-03 03:55:42,640 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-03 04:05:13,968 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0bv32; [2021-11-03 04:05:13,969 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0bv32; [2021-11-03 04:05:13,969 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0bv32; [2021-11-03 04:05:13,970 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0bv32; [2021-11-03 04:05:13,973 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-03 04:05:13,973 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0bv32; [2021-11-03 04:05:14,047 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:05:14,048 INFO L299 CfgBuilder]: Removed 9881 assume(true) statements. [2021-11-03 04:05:14,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:05:14 BoogieIcfgContainer [2021-11-03 04:05:14,058 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:05:14,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:05:14,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:05:14,063 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:05:14,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:55:30" (1/3) ... [2021-11-03 04:05:14,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@315cd242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:05:14, skipping insertion in model container [2021-11-03 04:05:14,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:38" (2/3) ... [2021-11-03 04:05:14,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@315cd242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:05:14, skipping insertion in model container [2021-11-03 04:05:14,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:05:14" (3/3) ... [2021-11-03 04:05:14,066 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-03 04:05:14,072 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:05:14,073 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 46 error locations. [2021-11-03 04:05:14,161 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:05:14,167 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:05:14,167 INFO L340 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2021-11-03 04:05:14,325 INFO L276 IsEmpty]: Start isEmpty. Operand has 10035 states, 9864 states have (on average 1.3700324412003244) internal successors, (13514), 9909 states have internal predecessors, (13514), 115 states have call successors, (115), 10 states have call predecessors, (115), 10 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) [2021-11-03 04:05:14,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-03 04:05:14,353 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:05:14,354 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:05:14,355 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 43 more)] === [2021-11-03 04:05:14,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:05:14,360 INFO L85 PathProgramCache]: Analyzing trace with hash -670838690, now seen corresponding path program 1 times [2021-11-03 04:05:14,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:05:14,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [60875219] [2021-11-03 04:05:14,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:05:14,383 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:05:14,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:05:14,386 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:05:14,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:05:18,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:05:18,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 2301 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:05:18,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:05:19,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:05:19,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:05:20,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:05:20,191 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:05:20,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [60875219] [2021-11-03 04:05:20,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [60875219] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:05:20,192 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:05:20,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:05:20,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388423953] [2021-11-03 04:05:20,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:05:20,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:05:20,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:05:20,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:05:20,249 INFO L87 Difference]: Start difference. First operand has 10035 states, 9864 states have (on average 1.3700324412003244) internal successors, (13514), 9909 states have internal predecessors, (13514), 115 states have call successors, (115), 10 states have call predecessors, (115), 10 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:05:26,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:05:26,205 INFO L93 Difference]: Finished difference Result 26278 states and 36076 transitions. [2021-11-03 04:05:26,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:05:26,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 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 103 [2021-11-03 04:05:26,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:05:26,331 INFO L225 Difference]: With dead ends: 26278 [2021-11-03 04:05:26,331 INFO L226 Difference]: Without dead ends: 15975 [2021-11-03 04:05:26,366 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:05:26,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15975 states. [2021-11-03 04:05:27,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15975 to 15911. [2021-11-03 04:05:27,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15911 states, 15628 states have (on average 1.3412464806757103) internal successors, (20961), 15673 states have internal predecessors, (20961), 207 states have call successors, (207), 30 states have call predecessors, (207), 30 states have return successors, (207), 207 states have call predecessors, (207), 207 states have call successors, (207) [2021-11-03 04:05:27,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15911 states to 15911 states and 21375 transitions. [2021-11-03 04:05:27,142 INFO L78 Accepts]: Start accepts. Automaton has 15911 states and 21375 transitions. Word has length 103 [2021-11-03 04:05:27,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:05:27,143 INFO L470 AbstractCegarLoop]: Abstraction has 15911 states and 21375 transitions. [2021-11-03 04:05:27,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:05:27,144 INFO L276 IsEmpty]: Start isEmpty. Operand 15911 states and 21375 transitions. [2021-11-03 04:05:27,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-03 04:05:27,148 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:05:27,148 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:05:27,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:05:27,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:05:27,368 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 43 more)] === [2021-11-03 04:05:27,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:05:27,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1026933273, now seen corresponding path program 1 times [2021-11-03 04:05:27,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:05:27,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2086391594] [2021-11-03 04:05:27,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:05:27,375 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:05:27,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:05:27,379 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:05:27,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:05:31,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:05:32,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 2296 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:05:32,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:05:32,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:05:32,518 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:05:32,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:05:32,979 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:05:32,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2086391594] [2021-11-03 04:05:32,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2086391594] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:05:32,980 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:05:32,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:05:32,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359000884] [2021-11-03 04:05:32,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:05:32,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:05:32,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:05:32,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:05:32,983 INFO L87 Difference]: Start difference. First operand 15911 states and 21375 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:05:36,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:05:36,955 INFO L93 Difference]: Finished difference Result 39172 states and 52592 transitions. [2021-11-03 04:05:36,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:05:36,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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 118 [2021-11-03 04:05:36,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:05:37,066 INFO L225 Difference]: With dead ends: 39172 [2021-11-03 04:05:37,066 INFO L226 Difference]: Without dead ends: 23457 [2021-11-03 04:05:37,104 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:05:37,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23457 states. [2021-11-03 04:05:37,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23457 to 22829. [2021-11-03 04:05:37,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22829 states, 22419 states have (on average 1.3395780364869083) internal successors, (30032), 22466 states have internal predecessors, (30032), 314 states have call successors, (314), 50 states have call predecessors, (314), 50 states have return successors, (314), 312 states have call predecessors, (314), 314 states have call successors, (314) [2021-11-03 04:05:38,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22829 states to 22829 states and 30660 transitions. [2021-11-03 04:05:38,041 INFO L78 Accepts]: Start accepts. Automaton has 22829 states and 30660 transitions. Word has length 118 [2021-11-03 04:05:38,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:05:38,042 INFO L470 AbstractCegarLoop]: Abstraction has 22829 states and 30660 transitions. [2021-11-03 04:05:38,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:05:38,044 INFO L276 IsEmpty]: Start isEmpty. Operand 22829 states and 30660 transitions. [2021-11-03 04:05:38,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-03 04:05:38,054 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:05:38,055 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:05:38,126 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-03 04:05:38,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:05:38,280 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 43 more)] === [2021-11-03 04:05:38,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:05:38,280 INFO L85 PathProgramCache]: Analyzing trace with hash -235104126, now seen corresponding path program 1 times [2021-11-03 04:05:38,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:05:38,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1882367709] [2021-11-03 04:05:38,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:05:38,288 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:05:38,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:05:38,289 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:05:38,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:05:42,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:05:42,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 2427 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:05:42,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:05:43,578 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:05:43,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:05:44,197 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:05:44,198 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:05:44,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1882367709] [2021-11-03 04:05:44,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1882367709] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:05:44,198 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:05:44,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:05:44,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565696992] [2021-11-03 04:05:44,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:05:44,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:05:44,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:05:44,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:05:44,201 INFO L87 Difference]: Start difference. First operand 22829 states and 30660 transitions. Second operand has 4 states, 4 states have (on average 44.5) internal successors, (178), 4 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:05:49,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:05:49,971 INFO L93 Difference]: Finished difference Result 55594 states and 74803 transitions. [2021-11-03 04:05:49,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:05:49,980 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.5) internal successors, (178), 4 states have internal predecessors, (178), 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 153 [2021-11-03 04:05:49,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:05:50,090 INFO L225 Difference]: With dead ends: 55594 [2021-11-03 04:05:50,090 INFO L226 Difference]: Without dead ends: 32961 [2021-11-03 04:05:50,146 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:05:50,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32961 states. [2021-11-03 04:05:51,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32961 to 32889. [2021-11-03 04:05:51,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32889 states, 32311 states have (on average 1.342669679056668) internal successors, (43383), 32358 states have internal predecessors, (43383), 452 states have call successors, (452), 80 states have call predecessors, (452), 80 states have return successors, (452), 450 states have call predecessors, (452), 452 states have call successors, (452) [2021-11-03 04:05:51,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32889 states to 32889 states and 44287 transitions. [2021-11-03 04:05:51,520 INFO L78 Accepts]: Start accepts. Automaton has 32889 states and 44287 transitions. Word has length 153 [2021-11-03 04:05:51,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:05:51,522 INFO L470 AbstractCegarLoop]: Abstraction has 32889 states and 44287 transitions. [2021-11-03 04:05:51,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.5) internal successors, (178), 4 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:05:51,523 INFO L276 IsEmpty]: Start isEmpty. Operand 32889 states and 44287 transitions. [2021-11-03 04:05:51,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-11-03 04:05:51,530 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:05:51,530 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:05:51,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:05:51,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:05:51,752 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 43 more)] === [2021-11-03 04:05:51,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:05:51,753 INFO L85 PathProgramCache]: Analyzing trace with hash 456570519, now seen corresponding path program 1 times [2021-11-03 04:05:51,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:05:51,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [747999494] [2021-11-03 04:05:51,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:05:51,761 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:05:51,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:05:51,762 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:05:51,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:05:56,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:05:56,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 2555 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:05:56,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:05:57,145 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 04:05:57,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:05:57,711 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 04:05:57,711 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:05:57,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [747999494] [2021-11-03 04:05:57,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [747999494] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:05:57,711 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:05:57,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:05:57,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658247268] [2021-11-03 04:05:57,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:05:57,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:05:57,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:05:57,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:05:57,714 INFO L87 Difference]: Start difference. First operand 32889 states and 44287 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:01,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:06:01,270 INFO L93 Difference]: Finished difference Result 68978 states and 92939 transitions. [2021-11-03 04:06:01,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:06:01,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 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 192 [2021-11-03 04:06:01,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:06:01,378 INFO L225 Difference]: With dead ends: 68978 [2021-11-03 04:06:01,379 INFO L226 Difference]: Without dead ends: 36285 [2021-11-03 04:06:01,436 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 381 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:06:01,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36285 states. [2021-11-03 04:06:02,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36285 to 36249. [2021-11-03 04:06:02,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36249 states, 35615 states have (on average 1.3431419345781273) internal successors, (47836), 35662 states have internal predecessors, (47836), 498 states have call successors, (498), 90 states have call predecessors, (498), 90 states have return successors, (498), 496 states have call predecessors, (498), 498 states have call successors, (498) [2021-11-03 04:06:02,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36249 states to 36249 states and 48832 transitions. [2021-11-03 04:06:02,826 INFO L78 Accepts]: Start accepts. Automaton has 36249 states and 48832 transitions. Word has length 192 [2021-11-03 04:06:02,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:06:02,827 INFO L470 AbstractCegarLoop]: Abstraction has 36249 states and 48832 transitions. [2021-11-03 04:06:02,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:02,828 INFO L276 IsEmpty]: Start isEmpty. Operand 36249 states and 48832 transitions. [2021-11-03 04:06:02,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-11-03 04:06:02,838 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:06:02,838 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:06:02,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 04:06:03,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:06:03,064 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 43 more)] === [2021-11-03 04:06:03,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:06:03,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1910124075, now seen corresponding path program 1 times [2021-11-03 04:06:03,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:06:03,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1641458306] [2021-11-03 04:06:03,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:06:03,070 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:06:03,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:06:03,072 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:06:03,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:06:07,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:06:07,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 2555 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:06:07,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:06:08,453 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 04:06:08,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:06:09,018 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 04:06:09,018 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:06:09,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1641458306] [2021-11-03 04:06:09,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1641458306] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:06:09,019 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:06:09,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:06:09,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549563905] [2021-11-03 04:06:09,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:06:09,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:06:09,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:06:09,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:06:09,021 INFO L87 Difference]: Start difference. First operand 36249 states and 48832 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:12,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:06:12,827 INFO L93 Difference]: Finished difference Result 75918 states and 102330 transitions. [2021-11-03 04:06:12,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:06:12,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 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 192 [2021-11-03 04:06:12,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:06:12,928 INFO L225 Difference]: With dead ends: 75918 [2021-11-03 04:06:12,928 INFO L226 Difference]: Without dead ends: 39865 [2021-11-03 04:06:12,986 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 381 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:06:13,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39865 states. [2021-11-03 04:06:14,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39865 to 39829. [2021-11-03 04:06:14,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39829 states, 39110 states have (on average 1.343543850677576) internal successors, (52546), 39157 states have internal predecessors, (52546), 563 states have call successors, (563), 110 states have call predecessors, (563), 110 states have return successors, (563), 561 states have call predecessors, (563), 563 states have call successors, (563) [2021-11-03 04:06:14,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39829 states to 39829 states and 53672 transitions. [2021-11-03 04:06:14,381 INFO L78 Accepts]: Start accepts. Automaton has 39829 states and 53672 transitions. Word has length 192 [2021-11-03 04:06:14,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:06:14,382 INFO L470 AbstractCegarLoop]: Abstraction has 39829 states and 53672 transitions. [2021-11-03 04:06:14,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:14,382 INFO L276 IsEmpty]: Start isEmpty. Operand 39829 states and 53672 transitions. [2021-11-03 04:06:14,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-11-03 04:06:14,392 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:06:14,392 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:06:14,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 04:06:14,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:06:14,616 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 43 more)] === [2021-11-03 04:06:14,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:06:14,617 INFO L85 PathProgramCache]: Analyzing trace with hash -272794504, now seen corresponding path program 1 times [2021-11-03 04:06:14,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:06:14,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1471760726] [2021-11-03 04:06:14,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:06:14,622 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:06:14,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:06:14,631 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:06:14,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:06:19,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:06:19,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 2657 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:06:19,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:06:20,514 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-03 04:06:20,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:06:21,095 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-03 04:06:21,096 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:06:21,096 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1471760726] [2021-11-03 04:06:21,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1471760726] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:06:21,096 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:06:21,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:06:21,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301804818] [2021-11-03 04:06:21,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:06:21,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:06:21,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:06:21,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:06:21,098 INFO L87 Difference]: Start difference. First operand 39829 states and 53672 transitions. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:24,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:06:24,669 INFO L93 Difference]: Finished difference Result 82860 states and 111713 transitions. [2021-11-03 04:06:24,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:06:24,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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 228 [2021-11-03 04:06:24,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:06:24,883 INFO L225 Difference]: With dead ends: 82860 [2021-11-03 04:06:24,883 INFO L226 Difference]: Without dead ends: 43227 [2021-11-03 04:06:24,943 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 453 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:06:24,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43227 states. [2021-11-03 04:06:26,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43227 to 43191. [2021-11-03 04:06:26,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43191 states, 42416 states have (on average 1.3438560920407394) internal successors, (57001), 42463 states have internal predecessors, (57001), 609 states have call successors, (609), 120 states have call predecessors, (609), 120 states have return successors, (609), 607 states have call predecessors, (609), 609 states have call successors, (609) [2021-11-03 04:06:26,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43191 states to 43191 states and 58219 transitions. [2021-11-03 04:06:26,483 INFO L78 Accepts]: Start accepts. Automaton has 43191 states and 58219 transitions. Word has length 228 [2021-11-03 04:06:26,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:06:26,484 INFO L470 AbstractCegarLoop]: Abstraction has 43191 states and 58219 transitions. [2021-11-03 04:06:26,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:26,484 INFO L276 IsEmpty]: Start isEmpty. Operand 43191 states and 58219 transitions. [2021-11-03 04:06:26,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-11-03 04:06:26,495 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:06:26,495 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:06:26,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 04:06:26,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:06:26,716 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 43 more)] === [2021-11-03 04:06:26,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:06:26,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1655478198, now seen corresponding path program 1 times [2021-11-03 04:06:26,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:06:26,723 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [800005398] [2021-11-03 04:06:26,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:06:26,729 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:06:26,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:06:26,730 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:06:26,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:06:31,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:06:31,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 2657 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:06:31,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:06:32,581 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-03 04:06:32,581 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:06:33,158 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-03 04:06:33,158 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:06:33,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [800005398] [2021-11-03 04:06:33,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [800005398] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:06:33,158 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:06:33,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:06:33,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070608567] [2021-11-03 04:06:33,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:06:33,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:06:33,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:06:33,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:06:33,160 INFO L87 Difference]: Start difference. First operand 43191 states and 58219 transitions. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:37,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:06:37,085 INFO L93 Difference]: Finished difference Result 89586 states and 120811 transitions. [2021-11-03 04:06:37,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:06:37,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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 228 [2021-11-03 04:06:37,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:06:37,188 INFO L225 Difference]: With dead ends: 89586 [2021-11-03 04:06:37,188 INFO L226 Difference]: Without dead ends: 46591 [2021-11-03 04:06:37,247 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 453 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:06:37,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46591 states. [2021-11-03 04:06:38,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46591 to 46555. [2021-11-03 04:06:38,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46555 states, 45724 states have (on average 1.3441081270230075) internal successors, (61458), 45771 states have internal predecessors, (61458), 655 states have call successors, (655), 130 states have call predecessors, (655), 130 states have return successors, (655), 653 states have call predecessors, (655), 655 states have call successors, (655) [2021-11-03 04:06:38,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46555 states to 46555 states and 62768 transitions. [2021-11-03 04:06:38,876 INFO L78 Accepts]: Start accepts. Automaton has 46555 states and 62768 transitions. Word has length 228 [2021-11-03 04:06:38,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:06:38,876 INFO L470 AbstractCegarLoop]: Abstraction has 46555 states and 62768 transitions. [2021-11-03 04:06:38,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:38,877 INFO L276 IsEmpty]: Start isEmpty. Operand 46555 states and 62768 transitions. [2021-11-03 04:06:38,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-11-03 04:06:38,886 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:06:38,887 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:06:38,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 04:06:39,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:06:39,112 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 43 more)] === [2021-11-03 04:06:39,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:06:39,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1908348413, now seen corresponding path program 1 times [2021-11-03 04:06:39,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:06:39,116 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1601196704] [2021-11-03 04:06:39,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:06:39,117 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:06:39,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:06:39,118 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:06:39,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 04:06:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:06:44,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 2813 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:06:44,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:06:45,582 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-03 04:06:45,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:06:46,161 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-03 04:06:46,162 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:06:46,162 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1601196704] [2021-11-03 04:06:46,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1601196704] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:06:46,162 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:06:46,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:06:46,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981335258] [2021-11-03 04:06:46,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:06:46,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:06:46,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:06:46,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:06:46,164 INFO L87 Difference]: Start difference. First operand 46555 states and 62768 transitions. Second operand has 5 states, 5 states have (on average 41.6) internal successors, (208), 5 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:51,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:06:51,052 INFO L93 Difference]: Finished difference Result 174995 states and 236085 transitions. [2021-11-03 04:06:51,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 04:06:51,053 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 5 states have internal predecessors, (208), 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 232 [2021-11-03 04:06:51,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:06:51,446 INFO L225 Difference]: With dead ends: 174995 [2021-11-03 04:06:51,446 INFO L226 Difference]: Without dead ends: 128636 [2021-11-03 04:06:51,517 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 461 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:06:51,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128636 states. [2021-11-03 04:06:54,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128636 to 46567. [2021-11-03 04:06:54,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46567 states, 45736 states have (on average 1.3440178415252755) internal successors, (61470), 45783 states have internal predecessors, (61470), 655 states have call successors, (655), 130 states have call predecessors, (655), 130 states have return successors, (655), 653 states have call predecessors, (655), 655 states have call successors, (655) [2021-11-03 04:06:54,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46567 states to 46567 states and 62780 transitions. [2021-11-03 04:06:54,558 INFO L78 Accepts]: Start accepts. Automaton has 46567 states and 62780 transitions. Word has length 232 [2021-11-03 04:06:54,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:06:54,559 INFO L470 AbstractCegarLoop]: Abstraction has 46567 states and 62780 transitions. [2021-11-03 04:06:54,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 5 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:54,559 INFO L276 IsEmpty]: Start isEmpty. Operand 46567 states and 62780 transitions. [2021-11-03 04:06:54,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-11-03 04:06:54,566 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:06:54,566 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:06:54,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 04:06:54,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:06:54,780 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 43 more)] === [2021-11-03 04:06:54,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:06:54,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1919486719, now seen corresponding path program 1 times [2021-11-03 04:06:54,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:06:54,786 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1421128907] [2021-11-03 04:06:54,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:06:54,786 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:06:54,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:06:54,788 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:06:54,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b45cad99-40ff-40c4-b6b4-f7d079911fdb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 04:07:00,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:00,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 2829 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-03 04:07:00,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:07:01,381 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-03 04:07:01,381 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:07:02,090 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-03 04:07:02,090 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:07:02,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1421128907] [2021-11-03 04:07:02,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1421128907] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:02,090 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:02,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-03 04:07:02,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468070393] [2021-11-03 04:07:02,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:07:02,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:07:02,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:07:02,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:07:02,092 INFO L87 Difference]: Start difference. First operand 46567 states and 62780 transitions. Second operand has 8 states, 8 states have (on average 26.875) internal successors, (215), 8 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:07:17,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:17,864 INFO L93 Difference]: Finished difference Result 209296 states and 282320 transitions. [2021-11-03 04:07:17,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:07:17,866 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 26.875) internal successors, (215), 8 states have internal predecessors, (215), 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 235 [2021-11-03 04:07:17,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:18,255 INFO L225 Difference]: With dead ends: 209296 [2021-11-03 04:07:18,255 INFO L226 Difference]: Without dead ends: 162925 [2021-11-03 04:07:18,347 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 472 GetRequests, 464 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-03 04:07:18,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162925 states.