./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.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_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/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_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/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_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/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 9fae230e52bc983f4c0251cc946bfbc52943e9b9d698b0f694e42af65a9c74e9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:41:03,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:41:03,838 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:41:03,883 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:41:03,884 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:41:03,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:41:03,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:41:03,900 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:41:03,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:41:03,912 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:41:03,913 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:41:03,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:41:03,916 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:41:03,920 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:41:03,923 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:41:03,930 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:41:03,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:41:03,933 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:41:03,939 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:41:03,942 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:41:03,943 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:41:03,947 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:41:03,951 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:41:03,952 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:41:03,961 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:41:03,961 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:41:03,962 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:41:03,964 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:41:03,965 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:41:03,966 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:41:03,966 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:41:03,968 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:41:03,969 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:41:03,970 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:41:03,971 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:41:03,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:41:03,972 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:41:03,973 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:41:03,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:41:03,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:41:03,975 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:41:03,975 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 05:41:04,027 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:41:04,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:41:04,028 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:41:04,029 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:41:04,029 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:41:04,029 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:41:04,029 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:41:04,030 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:41:04,036 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:41:04,037 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:41:04,038 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:41:04,038 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:41:04,039 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:41:04,039 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:41:04,039 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:41:04,040 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:41:04,040 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:41:04,041 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:41:04,041 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:41:04,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:41:04,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:41:04,041 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:41:04,042 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:41:04,042 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:41:04,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:41:04,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:41:04,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:41:04,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:41:04,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:41:04,045 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:41:04,045 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:41:04,046 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:41:04,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:41:04,046 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:41:04,046 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:41:04,047 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:41:04,047 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_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fae230e52bc983f4c0251cc946bfbc52943e9b9d698b0f694e42af65a9c74e9 [2021-11-03 05:41:04,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:41:04,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:41:04,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:41:04,440 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:41:04,441 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:41:04,442 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2021-11-03 05:41:04,560 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/data/8e8d404a1/df5d2275561e4a65aa72408e9690561b/FLAG9af351a33 [2021-11-03 05:41:05,622 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:41:05,623 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2021-11-03 05:41:05,687 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/data/8e8d404a1/df5d2275561e4a65aa72408e9690561b/FLAG9af351a33 [2021-11-03 05:41:06,014 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/data/8e8d404a1/df5d2275561e4a65aa72408e9690561b [2021-11-03 05:41:06,017 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:41:06,019 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:41:06,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:41:06,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:41:06,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:41:06,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:41:06" (1/1) ... [2021-11-03 05:41:06,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a47b395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:06, skipping insertion in model container [2021-11-03 05:41:06,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:41:06" (1/1) ... [2021-11-03 05:41:06,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:41:06,230 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:41:08,121 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:41:08,123 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:41:08,292 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:41:09,042 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_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292221,292234] [2021-11-03 05:41:09,046 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_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292387,292400] [2021-11-03 05:41:09,047 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_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292551,292564] [2021-11-03 05:41:09,048 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_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292716,292729] [2021-11-03 05:41:09,092 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:41:09,180 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-03 05:41:09,181 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@48d527b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:09, skipping insertion in model container [2021-11-03 05:41:09,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:41:09,182 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 05:41:09,185 INFO L168 Benchmark]: Toolchain (without parser) took 3164.19 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 56.7 MB in the beginning and 77.1 MB in the end (delta: -20.5 MB). Peak memory consumption was 37.6 MB. Max. memory is 16.1 GB. [2021-11-03 05:41:09,186 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 102.8 MB. Free memory is still 59.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:41:09,188 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3145.76 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 56.5 MB in the beginning and 77.1 MB in the end (delta: -20.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 16.1 GB. [2021-11-03 05:41:09,191 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 102.8 MB. Free memory is still 59.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3145.76 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 56.5 MB in the beginning and 77.1 MB in the end (delta: -20.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6045]: 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_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/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_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/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_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/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 9fae230e52bc983f4c0251cc946bfbc52943e9b9d698b0f694e42af65a9c74e9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:41:11,814 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:41:11,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:41:11,889 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:41:11,890 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:41:11,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:41:11,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:41:11,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:41:11,907 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:41:11,916 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:41:11,918 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:41:11,921 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:41:11,921 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:41:11,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:41:11,927 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:41:11,933 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:41:11,935 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:41:11,936 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:41:11,938 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:41:11,948 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:41:11,950 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:41:11,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:41:11,956 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:41:11,957 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:41:11,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:41:11,969 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:41:11,970 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:41:11,972 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:41:11,973 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:41:11,974 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:41:11,975 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:41:11,976 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:41:11,978 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:41:11,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:41:11,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:41:11,982 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:41:11,995 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:41:11,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:41:11,996 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:41:11,998 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:41:11,999 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:41:12,000 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 05:41:12,052 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:41:12,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:41:12,054 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:41:12,054 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:41:12,055 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:41:12,055 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:41:12,055 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:41:12,055 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:41:12,055 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:41:12,057 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:41:12,058 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:41:12,059 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:41:12,059 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:41:12,059 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:41:12,059 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:41:12,060 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:41:12,060 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:41:12,060 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:41:12,060 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:41:12,061 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:41:12,061 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:41:12,061 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:41:12,061 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:41:12,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:41:12,062 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:41:12,062 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:41:12,062 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:41:12,062 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:41:12,063 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:41:12,063 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:41:12,063 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:41:12,063 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:41:12,064 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_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fae230e52bc983f4c0251cc946bfbc52943e9b9d698b0f694e42af65a9c74e9 [2021-11-03 05:41:12,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:41:12,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:41:12,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:41:12,648 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:41:12,649 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:41:12,650 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2021-11-03 05:41:12,743 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/data/b7c88c46c/2715ae39b1ba43968925cc6087d89303/FLAG1488badaa [2021-11-03 05:41:14,059 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:41:14,060 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2021-11-03 05:41:14,107 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/data/b7c88c46c/2715ae39b1ba43968925cc6087d89303/FLAG1488badaa [2021-11-03 05:41:14,290 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/data/b7c88c46c/2715ae39b1ba43968925cc6087d89303 [2021-11-03 05:41:14,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:41:14,295 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:41:14,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:41:14,297 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:41:14,305 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:41:14,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:41:14" (1/1) ... [2021-11-03 05:41:14,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28693650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:14, skipping insertion in model container [2021-11-03 05:41:14,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:41:14" (1/1) ... [2021-11-03 05:41:14,347 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:41:14,586 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:41:17,810 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292221,292234] [2021-11-03 05:41:17,814 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_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292387,292400] [2021-11-03 05:41:17,814 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_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292551,292564] [2021-11-03 05:41:17,815 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_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292716,292729] [2021-11-03 05:41:17,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:41:17,942 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:41:18,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:41:18,422 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_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292221,292234] [2021-11-03 05:41:18,423 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_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292387,292400] [2021-11-03 05:41:18,423 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_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292551,292564] [2021-11-03 05:41:18,424 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_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292716,292729] [2021-11-03 05:41:18,430 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:41:18,451 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:41:18,997 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_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292221,292234] [2021-11-03 05:41:18,998 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_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292387,292400] [2021-11-03 05:41:18,999 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_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292551,292564] [2021-11-03 05:41:18,999 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_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292716,292729] [2021-11-03 05:41:19,013 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:41:19,317 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:41:19,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:19 WrapperNode [2021-11-03 05:41:19,318 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:41:19,320 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:41:19,324 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:41:19,324 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:41:19,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:19" (1/1) ... [2021-11-03 05:41:19,470 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:19" (1/1) ... [2021-11-03 05:41:20,164 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:41:20,165 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:41:20,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:41:20,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:41:20,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:19" (1/1) ... [2021-11-03 05:41:20,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:19" (1/1) ... [2021-11-03 05:41:20,292 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:19" (1/1) ... [2021-11-03 05:41:20,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:19" (1/1) ... [2021-11-03 05:41:20,929 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:19" (1/1) ... [2021-11-03 05:41:21,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:19" (1/1) ... [2021-11-03 05:41:21,102 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:19" (1/1) ... [2021-11-03 05:41:21,398 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:41:21,400 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:41:21,400 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:41:21,400 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:41:21,401 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:19" (1/1) ... [2021-11-03 05:41:21,409 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:41:21,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:41:21,437 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:41:21,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:41:21,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 05:41:21,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 05:41:21,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 05:41:21,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 05:41:21,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-03 05:41:21,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 05:41:21,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:41:21,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:41:21,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 05:41:21,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 05:41:21,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-03 05:41:21,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:41:21,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 05:41:21,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:41:21,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-03 05:41:21,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:41:21,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 05:41:21,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 05:41:21,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-03 05:41:21,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-03 05:41:21,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-03 05:41:21,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-03 05:41:21,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:41:21,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:41:21,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-03 05:41:21,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-03 05:41:21,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-03 05:41:21,601 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-03 05:41:21,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-03 05:41:21,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:41:21,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:43:24,971 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0bv32; [2021-11-03 05:43:24,971 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0bv32; [2021-11-03 05:43:24,972 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0bv32; [2021-11-03 05:43:24,973 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0bv32; [2021-11-03 05:43:24,974 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0bv32; [2021-11-03 05:43:24,974 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-03 05:43:25,012 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:43:25,013 INFO L299 CfgBuilder]: Removed 4958 assume(true) statements. [2021-11-03 05:43:25,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:43:25 BoogieIcfgContainer [2021-11-03 05:43:25,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:43:25,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:43:25,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:43:25,027 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:43:25,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:41:14" (1/3) ... [2021-11-03 05:43:25,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33865f8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:43:25, skipping insertion in model container [2021-11-03 05:43:25,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:19" (2/3) ... [2021-11-03 05:43:25,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33865f8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:43:25, skipping insertion in model container [2021-11-03 05:43:25,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:43:25" (3/3) ... [2021-11-03 05:43:25,031 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2021-11-03 05:43:25,038 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:43:25,038 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2021-11-03 05:43:25,116 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:43:25,136 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 05:43:25,138 INFO L340 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2021-11-03 05:43:25,228 INFO L276 IsEmpty]: Start isEmpty. Operand has 4079 states, 4055 states have (on average 1.3023427866831072) internal successors, (5281), 4078 states have internal predecessors, (5281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:43:25,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-03 05:43:25,242 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:43:25,243 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:43:25,244 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 21 more)] === [2021-11-03 05:43:25,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:43:25,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1375132322, now seen corresponding path program 1 times [2021-11-03 05:43:25,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:43:25,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [844900052] [2021-11-03 05:43:25,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:43:25,271 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:43:25,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:43:25,275 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:43:25,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:43:27,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:43:27,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 1011 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:43:27,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:43:27,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:43:27,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:43:27,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:43:27,908 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:43:27,908 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [844900052] [2021-11-03 05:43:27,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [844900052] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:43:27,909 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:43:27,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:43:27,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362716636] [2021-11-03 05:43:27,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:43:27,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:43:27,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:43:27,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:43:27,950 INFO L87 Difference]: Start difference. First operand has 4079 states, 4055 states have (on average 1.3023427866831072) internal successors, (5281), 4078 states have internal predecessors, (5281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:43:31,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:43:31,956 INFO L93 Difference]: Finished difference Result 14354 states and 18590 transitions. [2021-11-03 05:43:31,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:43:31,958 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-11-03 05:43:31,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:43:32,063 INFO L225 Difference]: With dead ends: 14354 [2021-11-03 05:43:32,063 INFO L226 Difference]: Without dead ends: 10028 [2021-11-03 05:43:32,087 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 78 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 05:43:32,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10028 states. [2021-11-03 05:43:32,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10028 to 9338. [2021-11-03 05:43:32,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9338 states, 9314 states have (on average 1.2532746403263904) internal successors, (11673), 9337 states have internal predecessors, (11673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:43:32,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9338 states to 9338 states and 11673 transitions. [2021-11-03 05:43:32,641 INFO L78 Accepts]: Start accepts. Automaton has 9338 states and 11673 transitions. Word has length 41 [2021-11-03 05:43:32,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:43:32,644 INFO L470 AbstractCegarLoop]: Abstraction has 9338 states and 11673 transitions. [2021-11-03 05:43:32,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:43:32,644 INFO L276 IsEmpty]: Start isEmpty. Operand 9338 states and 11673 transitions. [2021-11-03 05:43:32,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-03 05:43:32,654 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:43:32,654 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:43:32,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:43:32,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:43:32,879 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 21 more)] === [2021-11-03 05:43:32,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:43:32,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1114883933, now seen corresponding path program 1 times [2021-11-03 05:43:32,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:43:32,883 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1728939322] [2021-11-03 05:43:32,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:43:32,883 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:43:32,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:43:32,887 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:43:32,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:43:34,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:43:34,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 1005 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:43:34,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:43:34,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:43:34,891 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:43:35,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:43:35,189 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:43:35,189 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1728939322] [2021-11-03 05:43:35,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1728939322] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:43:35,190 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:43:35,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:43:35,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453328776] [2021-11-03 05:43:35,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:43:35,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:43:35,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:43:35,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:43:35,194 INFO L87 Difference]: Start difference. First operand 9338 states and 11673 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:43:39,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:43:39,345 INFO L93 Difference]: Finished difference Result 36790 states and 46076 transitions. [2021-11-03 05:43:39,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:43:39,346 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-11-03 05:43:39,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:43:39,518 INFO L225 Difference]: With dead ends: 36790 [2021-11-03 05:43:39,519 INFO L226 Difference]: Without dead ends: 27520 [2021-11-03 05:43:39,548 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 80 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 05:43:39,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27520 states. [2021-11-03 05:43:41,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27520 to 27472. [2021-11-03 05:43:41,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27472 states, 27448 states have (on average 1.2544083357621685) internal successors, (34431), 27471 states have internal predecessors, (34431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:43:41,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27472 states to 27472 states and 34431 transitions. [2021-11-03 05:43:41,315 INFO L78 Accepts]: Start accepts. Automaton has 27472 states and 34431 transitions. Word has length 42 [2021-11-03 05:43:41,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:43:41,316 INFO L470 AbstractCegarLoop]: Abstraction has 27472 states and 34431 transitions. [2021-11-03 05:43:41,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:43:41,317 INFO L276 IsEmpty]: Start isEmpty. Operand 27472 states and 34431 transitions. [2021-11-03 05:43:41,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-03 05:43:41,323 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:43:41,324 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] [2021-11-03 05:43:41,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:43:41,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:43:41,550 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 21 more)] === [2021-11-03 05:43:41,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:43:41,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1793047480, now seen corresponding path program 1 times [2021-11-03 05:43:41,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:43:41,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1517931413] [2021-11-03 05:43:41,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:43:41,554 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:43:41,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:43:41,558 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:43:41,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:43:43,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:43:43,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 1020 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:43:43,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:43:43,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:43:43,807 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:43:44,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:43:44,213 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:43:44,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1517931413] [2021-11-03 05:43:44,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1517931413] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:43:44,214 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:43:44,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:43:44,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457668398] [2021-11-03 05:43:44,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:43:44,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:43:44,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:43:44,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:43:44,216 INFO L87 Difference]: Start difference. First operand 27472 states and 34431 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:43:48,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:43:48,941 INFO L93 Difference]: Finished difference Result 59279 states and 74808 transitions. [2021-11-03 05:43:48,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:43:48,942 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 48 [2021-11-03 05:43:48,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:43:49,057 INFO L225 Difference]: With dead ends: 59279 [2021-11-03 05:43:49,058 INFO L226 Difference]: Without dead ends: 31875 [2021-11-03 05:43:49,116 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 92 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 05:43:49,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31875 states. [2021-11-03 05:43:50,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31875 to 31759. [2021-11-03 05:43:50,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31759 states, 31735 states have (on average 1.2679060973688356) internal successors, (40237), 31758 states have internal predecessors, (40237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:43:50,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31759 states to 31759 states and 40237 transitions. [2021-11-03 05:43:50,890 INFO L78 Accepts]: Start accepts. Automaton has 31759 states and 40237 transitions. Word has length 48 [2021-11-03 05:43:50,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:43:50,891 INFO L470 AbstractCegarLoop]: Abstraction has 31759 states and 40237 transitions. [2021-11-03 05:43:50,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:43:50,893 INFO L276 IsEmpty]: Start isEmpty. Operand 31759 states and 40237 transitions. [2021-11-03 05:43:50,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-03 05:43:50,896 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:43:50,897 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:43:50,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:43:51,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:43:51,122 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 21 more)] === [2021-11-03 05:43:51,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:43:51,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1518347287, now seen corresponding path program 1 times [2021-11-03 05:43:51,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:43:51,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1562794318] [2021-11-03 05:43:51,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:43:51,126 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:43:51,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:43:51,130 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:43:51,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:43:53,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:43:53,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 1097 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:43:53,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:43:53,566 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:43:53,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:43:53,929 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:43:53,929 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:43:53,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1562794318] [2021-11-03 05:43:53,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1562794318] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:43:53,930 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:43:53,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:43:53,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997455730] [2021-11-03 05:43:53,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:43:53,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:43:53,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:43:53,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:43:53,933 INFO L87 Difference]: Start difference. First operand 31759 states and 40237 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:43:58,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:43:58,474 INFO L93 Difference]: Finished difference Result 93202 states and 118112 transitions. [2021-11-03 05:43:58,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:43:58,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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 72 [2021-11-03 05:43:58,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:43:58,658 INFO L225 Difference]: With dead ends: 93202 [2021-11-03 05:43:58,659 INFO L226 Difference]: Without dead ends: 62310 [2021-11-03 05:43:58,740 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 140 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 05:43:58,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62310 states. [2021-11-03 05:44:01,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62310 to 62262. [2021-11-03 05:44:01,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62262 states, 62238 states have (on average 1.2678427970050452) internal successors, (78908), 62261 states have internal predecessors, (78908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:44:02,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62262 states to 62262 states and 78908 transitions. [2021-11-03 05:44:02,343 INFO L78 Accepts]: Start accepts. Automaton has 62262 states and 78908 transitions. Word has length 72 [2021-11-03 05:44:02,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:44:02,343 INFO L470 AbstractCegarLoop]: Abstraction has 62262 states and 78908 transitions. [2021-11-03 05:44:02,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:44:02,344 INFO L276 IsEmpty]: Start isEmpty. Operand 62262 states and 78908 transitions. [2021-11-03 05:44:02,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-03 05:44:02,347 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:44:02,348 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:44:02,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 05:44:02,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:44:02,574 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 21 more)] === [2021-11-03 05:44:02,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:44:02,575 INFO L85 PathProgramCache]: Analyzing trace with hash -2047198752, now seen corresponding path program 1 times [2021-11-03 05:44:02,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:44:02,578 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1777712870] [2021-11-03 05:44:02,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:44:02,579 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:44:02,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:44:02,580 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:44:02,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 05:44:04,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:44:04,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 1068 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:44:04,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:44:05,466 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 05:44:05,467 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:44:06,762 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 05:44:06,762 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:44:06,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1777712870] [2021-11-03 05:44:06,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1777712870] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:44:06,763 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:44:06,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-03 05:44:06,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29545779] [2021-11-03 05:44:06,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:44:06,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:44:06,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:44:06,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:44:06,764 INFO L87 Difference]: Start difference. First operand 62262 states and 78908 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:44:10,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:44:10,237 INFO L93 Difference]: Finished difference Result 62262 states and 78908 transitions. [2021-11-03 05:44:10,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:44:10,238 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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 72 [2021-11-03 05:44:10,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:44:10,386 INFO L225 Difference]: With dead ends: 62262 [2021-11-03 05:44:10,386 INFO L226 Difference]: Without dead ends: 62256 [2021-11-03 05:44:10,403 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:44:10,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62256 states. [2021-11-03 05:44:13,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62256 to 62256. [2021-11-03 05:44:13,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62256 states, 62235 states have (on average 1.2678075038161807) internal successors, (78902), 62255 states have internal predecessors, (78902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:44:13,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62256 states to 62256 states and 78902 transitions. [2021-11-03 05:44:13,981 INFO L78 Accepts]: Start accepts. Automaton has 62256 states and 78902 transitions. Word has length 72 [2021-11-03 05:44:13,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:44:13,982 INFO L470 AbstractCegarLoop]: Abstraction has 62256 states and 78902 transitions. [2021-11-03 05:44:13,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:44:13,983 INFO L276 IsEmpty]: Start isEmpty. Operand 62256 states and 78902 transitions. [2021-11-03 05:44:13,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-03 05:44:13,987 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:44:13,988 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:44:14,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 05:44:14,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:44:14,202 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 21 more)] === [2021-11-03 05:44:14,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:44:14,203 INFO L85 PathProgramCache]: Analyzing trace with hash -262838269, now seen corresponding path program 1 times [2021-11-03 05:44:14,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:44:14,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [487139528] [2021-11-03 05:44:14,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:44:14,207 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:44:14,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:44:14,208 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:44:14,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 05:44:15,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:44:15,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 1071 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:44:15,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:44:17,117 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 05:44:17,117 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:44:18,365 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 05:44:18,366 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:44:18,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [487139528] [2021-11-03 05:44:18,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [487139528] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:44:18,366 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:44:18,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-03 05:44:18,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847379218] [2021-11-03 05:44:18,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:44:18,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:44:18,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:44:18,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:44:18,370 INFO L87 Difference]: Start difference. First operand 62256 states and 78902 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:44:21,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:44:21,659 INFO L93 Difference]: Finished difference Result 62256 states and 78902 transitions. [2021-11-03 05:44:21,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:44:21,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 74 [2021-11-03 05:44:21,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:44:21,780 INFO L225 Difference]: With dead ends: 62256 [2021-11-03 05:44:21,780 INFO L226 Difference]: Without dead ends: 62250 [2021-11-03 05:44:21,796 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:44:21,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62250 states. [2021-11-03 05:44:24,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62250 to 62250. [2021-11-03 05:44:25,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62250 states, 62232 states have (on average 1.267772207224579) internal successors, (78896), 62249 states have internal predecessors, (78896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:44:25,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62250 states to 62250 states and 78896 transitions. [2021-11-03 05:44:25,296 INFO L78 Accepts]: Start accepts. Automaton has 62250 states and 78896 transitions. Word has length 74 [2021-11-03 05:44:25,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:44:25,297 INFO L470 AbstractCegarLoop]: Abstraction has 62250 states and 78896 transitions. [2021-11-03 05:44:25,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:44:25,297 INFO L276 IsEmpty]: Start isEmpty. Operand 62250 states and 78896 transitions. [2021-11-03 05:44:25,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-03 05:44:25,301 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:44:25,302 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:44:25,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 05:44:25,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:44:25,511 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 21 more)] === [2021-11-03 05:44:25,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:44:25,511 INFO L85 PathProgramCache]: Analyzing trace with hash 815635110, now seen corresponding path program 1 times [2021-11-03 05:44:25,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:44:25,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [817147702] [2021-11-03 05:44:25,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:44:25,513 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:44:25,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:44:25,514 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:44:25,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 05:44:27,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:44:27,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 1074 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:44:27,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:44:28,510 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 05:44:28,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:44:29,811 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 05:44:29,812 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:44:29,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [817147702] [2021-11-03 05:44:29,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [817147702] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:44:29,813 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:44:29,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-03 05:44:29,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002114071] [2021-11-03 05:44:29,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:44:29,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:44:29,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:44:29,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:44:29,816 INFO L87 Difference]: Start difference. First operand 62250 states and 78896 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:44:33,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:44:33,829 INFO L93 Difference]: Finished difference Result 62250 states and 78896 transitions. [2021-11-03 05:44:33,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:44:33,829 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 76 [2021-11-03 05:44:33,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:44:33,923 INFO L225 Difference]: With dead ends: 62250 [2021-11-03 05:44:33,924 INFO L226 Difference]: Without dead ends: 62244 [2021-11-03 05:44:33,936 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:44:34,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62244 states. [2021-11-03 05:44:36,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62244 to 62244. [2021-11-03 05:44:36,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62244 states, 62229 states have (on average 1.2677369072297482) internal successors, (78890), 62243 states have internal predecessors, (78890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:44:37,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62244 states to 62244 states and 78890 transitions. [2021-11-03 05:44:37,026 INFO L78 Accepts]: Start accepts. Automaton has 62244 states and 78890 transitions. Word has length 76 [2021-11-03 05:44:37,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:44:37,026 INFO L470 AbstractCegarLoop]: Abstraction has 62244 states and 78890 transitions. [2021-11-03 05:44:37,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:44:37,027 INFO L276 IsEmpty]: Start isEmpty. Operand 62244 states and 78890 transitions. [2021-11-03 05:44:37,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-03 05:44:37,032 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:44:37,033 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:44:37,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 05:44:37,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:44:37,246 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 21 more)] === [2021-11-03 05:44:37,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:44:37,247 INFO L85 PathProgramCache]: Analyzing trace with hash 2141434313, now seen corresponding path program 1 times [2021-11-03 05:44:37,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:44:37,248 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2052264532] [2021-11-03 05:44:37,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:44:37,249 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:44:37,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:44:37,250 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:44:37,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9d19d3-2b77-4505-a3f4-3c2bf2855e6a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 05:44:38,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:44:39,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 1077 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:44:39,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:44:40,351 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 05:44:40,352 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:44:41,843 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 05:44:41,843 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:44:41,843 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2052264532] [2021-11-03 05:44:41,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2052264532] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:44:41,844 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:44:41,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-03 05:44:41,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388798983] [2021-11-03 05:44:41,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:44:41,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:44:41,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:44:41,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:44:41,846 INFO L87 Difference]: Start difference. First operand 62244 states and 78890 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:44:45,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:44:45,284 INFO L93 Difference]: Finished difference Result 62244 states and 78890 transitions. [2021-11-03 05:44:45,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:44:45,285 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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 78 [2021-11-03 05:44:45,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:44:45,504 INFO L225 Difference]: With dead ends: 62244 [2021-11-03 05:44:45,504 INFO L226 Difference]: Without dead ends: 62200 [2021-11-03 05:44:45,517 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:44:45,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62200 states.