./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4295d1eb99eb4c4e306792d8730363a971cf6332e7c089b8c1be6cbddd5edcb9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:42:06,991 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:42:06,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:42:07,051 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:42:07,052 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:42:07,057 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:42:07,060 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:42:07,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:42:07,067 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:42:07,072 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:42:07,074 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:42:07,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:42:07,076 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:42:07,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:42:07,081 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:42:07,086 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:42:07,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:42:07,089 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:42:07,092 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:42:07,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:42:07,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:42:07,104 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:42:07,107 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:42:07,108 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:42:07,118 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:42:07,118 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:42:07,118 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:42:07,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:42:07,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:42:07,123 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:42:07,123 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:42:07,124 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:42:07,126 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:42:07,128 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:42:07,129 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:42:07,130 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:42:07,131 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:42:07,131 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:42:07,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:42:07,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:42:07,133 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:42:07,134 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-13 01:42:07,180 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:42:07,180 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:42:07,182 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:42:07,182 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:42:07,182 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:42:07,182 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:42:07,183 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:42:07,183 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 01:42:07,189 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:42:07,189 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:42:07,189 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 01:42:07,189 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 01:42:07,189 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:42:07,190 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 01:42:07,190 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 01:42:07,190 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 01:42:07,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:42:07,191 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:42:07,191 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:42:07,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:42:07,191 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:42:07,191 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:42:07,192 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:42:07,192 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:42:07,192 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:42:07,192 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:42:07,192 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:42:07,193 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:42:07,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:42:07,193 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:42:07,193 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:42:07,193 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:42:07,193 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 01:42:07,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 01:42:07,194 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:42:07,194 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:42:07,194 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:42:07,194 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_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4295d1eb99eb4c4e306792d8730363a971cf6332e7c089b8c1be6cbddd5edcb9 [2021-11-13 01:42:07,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:42:07,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:42:07,480 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:42:07,481 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:42:07,482 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:42:07,484 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-13 01:42:07,571 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/data/4f03ce683/4055cfa5955b44e098315151aa49a3ca/FLAG006196890 [2021-11-13 01:42:08,760 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:42:08,762 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-13 01:42:08,852 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/data/4f03ce683/4055cfa5955b44e098315151aa49a3ca/FLAG006196890 [2021-11-13 01:42:08,953 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/data/4f03ce683/4055cfa5955b44e098315151aa49a3ca [2021-11-13 01:42:08,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:42:08,958 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:42:08,962 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:42:08,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:42:08,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:42:08,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:42:08" (1/1) ... [2021-11-13 01:42:08,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cdabbe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:08, skipping insertion in model container [2021-11-13 01:42:08,968 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:42:08" (1/1) ... [2021-11-13 01:42:08,976 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:42:09,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:42:12,384 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:12,443 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:12,444 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:12,561 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:12,653 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:14,172 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_e1302ab4-eb6f-4f07-aadb-58e187de76de/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[487689,487702] [2021-11-13 01:42:14,175 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_e1302ab4-eb6f-4f07-aadb-58e187de76de/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[487834,487847] [2021-11-13 01:42:14,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:42:14,301 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) [2021-11-13 01:42:14,303 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6a1143d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:14, skipping insertion in model container [2021-11-13 01:42:14,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:42:14,304 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-13 01:42:14,306 INFO L158 Benchmark]: Toolchain (without parser) took 5347.04ms. Allocated memory was 127.9MB in the beginning and 201.3MB in the end (delta: 73.4MB). Free memory was 72.2MB in the beginning and 120.6MB in the end (delta: -48.4MB). Peak memory consumption was 87.1MB. Max. memory is 16.1GB. [2021-11-13 01:42:14,307 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 127.9MB. Free memory was 99.4MB in the beginning and 99.4MB in the end (delta: 31.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:42:14,308 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5341.38ms. Allocated memory was 127.9MB in the beginning and 201.3MB in the end (delta: 73.4MB). Free memory was 72.0MB in the beginning and 120.6MB in the end (delta: -48.6MB). Peak memory consumption was 87.1MB. Max. memory is 16.1GB. [2021-11-13 01:42:14,310 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 127.9MB. Free memory was 99.4MB in the beginning and 99.4MB in the end (delta: 31.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5341.38ms. Allocated memory was 127.9MB in the beginning and 201.3MB in the end (delta: 73.4MB). Free memory was 72.0MB in the beginning and 120.6MB in the end (delta: -48.6MB). Peak memory consumption was 87.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7052]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4295d1eb99eb4c4e306792d8730363a971cf6332e7c089b8c1be6cbddd5edcb9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:42:16,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:42:16,584 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:42:16,636 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:42:16,636 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:42:16,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:42:16,640 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:42:16,642 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:42:16,644 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:42:16,645 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:42:16,647 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:42:16,648 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:42:16,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:42:16,650 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:42:16,652 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:42:16,654 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:42:16,655 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:42:16,656 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:42:16,659 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:42:16,661 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:42:16,663 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:42:16,665 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:42:16,666 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:42:16,667 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:42:16,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:42:16,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:42:16,672 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:42:16,673 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:42:16,674 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:42:16,675 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:42:16,675 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:42:16,676 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:42:16,677 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:42:16,678 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:42:16,680 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:42:16,680 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:42:16,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:42:16,681 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:42:16,681 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:42:16,682 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:42:16,683 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:42:16,684 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-13 01:42:16,711 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:42:16,711 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:42:16,712 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:42:16,712 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:42:16,712 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:42:16,713 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:42:16,713 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:42:16,713 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:42:16,713 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:42:16,714 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:42:16,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:42:16,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:42:16,715 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:42:16,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:42:16,715 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:42:16,715 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:42:16,716 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 01:42:16,716 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 01:42:16,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:42:16,716 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:42:16,716 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:42:16,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:42:16,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 01:42:16,717 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:42:16,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:42:16,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:42:16,718 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:42:16,718 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:42:16,718 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 01:42:16,718 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 01:42:16,719 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:42:16,719 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:42:16,719 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:42:16,719 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_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4295d1eb99eb4c4e306792d8730363a971cf6332e7c089b8c1be6cbddd5edcb9 [2021-11-13 01:42:17,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:42:17,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:42:17,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:42:17,117 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:42:17,118 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:42:17,119 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-13 01:42:17,183 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/data/42007c134/c23ea97df21d4086bcd4cd1d0f131f5c/FLAGdf312b916 [2021-11-13 01:42:18,408 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:42:18,410 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-13 01:42:18,483 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/data/42007c134/c23ea97df21d4086bcd4cd1d0f131f5c/FLAGdf312b916 [2021-11-13 01:42:18,646 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/data/42007c134/c23ea97df21d4086bcd4cd1d0f131f5c [2021-11-13 01:42:18,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:42:18,662 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:42:18,667 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:42:18,667 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:42:18,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:42:18,671 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:42:18" (1/1) ... [2021-11-13 01:42:18,672 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@220c49d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:18, skipping insertion in model container [2021-11-13 01:42:18,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:42:18" (1/1) ... [2021-11-13 01:42:18,680 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:42:18,944 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:42:23,988 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_e1302ab4-eb6f-4f07-aadb-58e187de76de/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[487689,487702] [2021-11-13 01:42:23,991 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_e1302ab4-eb6f-4f07-aadb-58e187de76de/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[487834,487847] [2021-11-13 01:42:24,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:42:24,152 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 01:42:24,312 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:42:24,778 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_e1302ab4-eb6f-4f07-aadb-58e187de76de/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[487689,487702] [2021-11-13 01:42:24,779 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_e1302ab4-eb6f-4f07-aadb-58e187de76de/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[487834,487847] [2021-11-13 01:42:24,787 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:42:24,861 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:42:25,393 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[487689,487702] [2021-11-13 01:42:25,393 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[487834,487847] [2021-11-13 01:42:25,405 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:42:25,840 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:42:25,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:25 WrapperNode [2021-11-13 01:42:25,840 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:42:25,842 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:42:25,842 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:42:25,842 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:42:25,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:25" (1/1) ... [2021-11-13 01:42:25,984 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:25" (1/1) ... [2021-11-13 01:42:26,401 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:42:26,402 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:42:26,403 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:42:26,403 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:42:26,412 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:25" (1/1) ... [2021-11-13 01:42:26,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:25" (1/1) ... [2021-11-13 01:42:26,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:25" (1/1) ... [2021-11-13 01:42:26,489 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:25" (1/1) ... [2021-11-13 01:42:26,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:25" (1/1) ... [2021-11-13 01:42:26,737 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:25" (1/1) ... [2021-11-13 01:42:26,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:25" (1/1) ... [2021-11-13 01:42:26,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:42:26,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:42:26,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:42:26,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:42:26,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:25" (1/1) ... [2021-11-13 01:42:26,888 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:42:26,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:42:26,913 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:42:26,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:42:26,957 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2021-11-13 01:42:26,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2021-11-13 01:42:26,957 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-13 01:42:26,957 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-13 01:42:26,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-13 01:42:26,958 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-13 01:42:26,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_6 [2021-11-13 01:42:26,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_6 [2021-11-13 01:42:26,958 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-13 01:42:26,958 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-13 01:42:26,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 01:42:26,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 01:42:26,959 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-11-13 01:42:26,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-11-13 01:42:26,959 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_function_pointers_vf [2021-11-13 01:42:26,959 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_function_pointers_vf [2021-11-13 01:42:26,959 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-11-13 01:42:26,960 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-11-13 01:42:26,960 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-13 01:42:26,960 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-13 01:42:26,960 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-13 01:42:26,960 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-13 01:42:26,960 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-13 01:42:26,961 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-13 01:42:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_alloc_rx_buffers [2021-11-13 01:42:26,961 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_alloc_rx_buffers [2021-11-13 01:42:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-13 01:42:26,961 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-13 01:42:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_mac_addr_vf [2021-11-13 01:42:26,961 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_mac_addr_vf [2021-11-13 01:42:26,962 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_close [2021-11-13 01:42:26,962 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_close [2021-11-13 01:42:26,962 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-13 01:42:26,962 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-13 01:42:26,962 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw_vf [2021-11-13 01:42:26,962 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw_vf [2021-11-13 01:42:26,963 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_maybe_stop_tx [2021-11-13 01:42:26,963 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_maybe_stop_tx [2021-11-13 01:42:26,963 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-13 01:42:26,963 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-13 01:42:26,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-13 01:42:26,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-13 01:42:26,964 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-13 01:42:26,964 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-13 01:42:26,964 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-13 01:42:26,964 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-13 01:42:26,964 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_clean_tx_irq [2021-11-13 01:42:26,964 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_clean_tx_irq [2021-11-13 01:42:26,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-13 01:42:26,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-13 01:42:26,965 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-13 01:42:26,965 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-13 01:42:26,965 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_suspend [2021-11-13 01:42:26,965 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_suspend [2021-11-13 01:42:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 01:42:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-13 01:42:26,966 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-13 01:42:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 01:42:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-13 01:42:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-13 01:42:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-13 01:42:26,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-13 01:42:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-13 01:42:26,967 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-13 01:42:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-13 01:42:26,967 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-13 01:42:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-13 01:42:26,968 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-13 01:42:26,968 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_assign_vector [2021-11-13 01:42:26,968 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_assign_vector [2021-11-13 01:42:26,968 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-13 01:42:26,968 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-13 01:42:26,968 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-13 01:42:26,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-13 01:42:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_desc_unused [2021-11-13 01:42:26,969 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_desc_unused [2021-11-13 01:42:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-13 01:42:26,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-13 01:42:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-13 01:42:26,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-13 01:42:26,970 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_netpoll [2021-11-13 01:42:26,970 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_netpoll [2021-11-13 01:42:26,970 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-13 01:42:26,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-13 01:42:26,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-13 01:42:26,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-13 01:42:26,971 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_reset_interrupt_capability [2021-11-13 01:42:26,971 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_reset_interrupt_capability [2021-11-13 01:42:26,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-13 01:42:26,971 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-13 01:42:26,971 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_msg_vf [2021-11-13 01:42:26,971 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_msg_vf [2021-11-13 01:42:26,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-13 01:42:26,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-13 01:42:26,972 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-13 01:42:26,972 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-13 01:42:26,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_igbvf_exit_module_19_2 [2021-11-13 01:42:26,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_igbvf_exit_module_19_2 [2021-11-13 01:42:26,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-13 01:42:26,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-13 01:42:26,973 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_free_tx_resources [2021-11-13 01:42:26,973 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_free_tx_resources [2021-11-13 01:42:26,973 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2021-11-13 01:42:26,973 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2021-11-13 01:42:26,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-13 01:42:26,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-13 01:42:26,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-13 01:42:26,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-13 01:42:26,974 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-13 01:42:26,974 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-13 01:42:26,974 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-13 01:42:26,975 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-13 01:42:26,975 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2021-11-13 01:42:26,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2021-11-13 01:42:26,975 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-11-13 01:42:26,975 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-11-13 01:42:26,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 01:42:26,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-13 01:42:26,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-13 01:42:26,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-13 01:42:26,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-13 01:42:26,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-13 01:42:26,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2021-11-13 01:42:26,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-13 01:42:26,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-13 01:42:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-13 01:42:26,977 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-13 01:42:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_configure_msix [2021-11-13 01:42:26,977 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_configure_msix [2021-11-13 01:42:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_open [2021-11-13 01:42:26,977 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_open [2021-11-13 01:42:26,978 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-13 01:42:26,978 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-13 01:42:26,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-13 01:42:26,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-13 01:42:26,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 01:42:26,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-13 01:42:26,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-13 01:42:26,979 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 01:42:26,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 01:42:26,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-13 01:42:26,979 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-13 01:42:26,979 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-13 01:42:26,979 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_nway_reset [2021-11-13 01:42:26,980 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_nway_reset [2021-11-13 01:42:26,980 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_reset [2021-11-13 01:42:26,980 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_reset [2021-11-13 01:42:26,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-13 01:42:26,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-13 01:42:26,980 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~$Pointer$~TO~C_INT [2021-11-13 01:42:26,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~$Pointer$~TO~C_INT [2021-11-13 01:42:26,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-13 01:42:26,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-13 01:42:26,981 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_posted_mbx [2021-11-13 01:42:26,981 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_posted_mbx [2021-11-13 01:42:26,981 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-13 01:42:26,981 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-13 01:42:26,981 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-13 01:42:26,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-13 01:42:26,982 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_irq_enable [2021-11-13 01:42:26,982 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_irq_enable [2021-11-13 01:42:26,982 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-13 01:42:26,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-13 01:42:26,982 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-13 01:42:26,983 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-13 01:42:26,983 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_reinit_locked [2021-11-13 01:42:26,983 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_reinit_locked [2021-11-13 01:42:26,983 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-13 01:42:26,983 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-13 01:42:26,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-13 01:42:26,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-13 01:42:26,984 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_update_stats [2021-11-13 01:42:26,984 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_update_stats [2021-11-13 01:42:26,984 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_vlan_rx_add_vid [2021-11-13 01:42:26,984 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_vlan_rx_add_vid [2021-11-13 01:42:26,984 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-13 01:42:26,984 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-13 01:42:26,984 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-13 01:42:26,985 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-13 01:42:26,985 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_bit_vf [2021-11-13 01:42:26,985 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_bit_vf [2021-11-13 01:42:26,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-13 01:42:26,985 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_hw_vf [2021-11-13 01:42:26,985 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_hw_vf [2021-11-13 01:42:26,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:42:26,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:42:26,986 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-13 01:42:26,986 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-13 01:42:26,986 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_ack [2021-11-13 01:42:26,986 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_ack [2021-11-13 01:42:26,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-13 01:42:26,987 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-13 01:42:26,987 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-13 01:42:26,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-13 01:42:26,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 01:42:26,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 01:42:26,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-13 01:42:26,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 01:42:26,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 01:42:26,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 01:42:26,988 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set_vf [2021-11-13 01:42:26,988 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set_vf [2021-11-13 01:42:26,988 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-13 01:42:26,988 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-13 01:42:26,989 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-13 01:42:26,989 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-13 01:42:26,989 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-13 01:42:26,989 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-13 01:42:26,989 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_down [2021-11-13 01:42:26,989 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_down [2021-11-13 01:42:26,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-13 01:42:26,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-13 01:42:26,990 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_get_regs_len [2021-11-13 01:42:26,990 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_get_regs_len [2021-11-13 01:42:26,990 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_free_irq [2021-11-13 01:42:26,990 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_free_irq [2021-11-13 01:42:26,990 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-13 01:42:26,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-13 01:42:26,991 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-13 01:42:26,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-13 01:42:26,991 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link_vf [2021-11-13 01:42:26,991 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link_vf [2021-11-13 01:42:26,991 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-13 01:42:26,991 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-13 01:42:26,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 01:42:26,992 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 01:42:26,992 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-13 01:42:26,992 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-13 01:42:26,992 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-13 01:42:26,993 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-13 01:42:26,993 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_clean_tx_ring [2021-11-13 01:42:26,993 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_clean_tx_ring [2021-11-13 01:42:26,993 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_v2p_mailbox [2021-11-13 01:42:26,993 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_v2p_mailbox [2021-11-13 01:42:26,993 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-13 01:42:26,993 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-13 01:42:26,994 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-13 01:42:26,994 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-13 01:42:26,994 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-13 01:42:26,998 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-13 01:42:26,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:42:26,998 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-13 01:42:26,998 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-13 01:42:26,999 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_remove [2021-11-13 01:42:26,999 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_remove [2021-11-13 01:42:27,000 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-13 01:42:27,000 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-13 01:42:27,001 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-13 01:42:27,008 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-13 01:42:27,008 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_irq_disable [2021-11-13 01:42:27,008 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_irq_disable [2021-11-13 01:42:27,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 01:42:27,008 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_configure [2021-11-13 01:42:27,009 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_configure [2021-11-13 01:42:27,009 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_setup_rx_resources [2021-11-13 01:42:27,009 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_setup_rx_resources [2021-11-13 01:42:27,009 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_clean_rx_ring [2021-11-13 01:42:27,009 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_clean_rx_ring [2021-11-13 01:42:27,009 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~s32~0 [2021-11-13 01:42:27,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~s32~0 [2021-11-13 01:42:27,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-13 01:42:27,010 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_obtain_mbx_lock_vf [2021-11-13 01:42:27,010 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_obtain_mbx_lock_vf [2021-11-13 01:42:27,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-13 01:42:27,010 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2021-11-13 01:42:27,010 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2021-11-13 01:42:27,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-13 01:42:27,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 01:42:27,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 01:42:27,011 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_ack_vf [2021-11-13 01:42:27,011 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_ack_vf [2021-11-13 01:42:27,011 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-13 01:42:27,011 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-13 01:42:27,011 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-13 01:42:27,011 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-13 01:42:27,011 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-13 01:42:27,012 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-13 01:42:27,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-13 01:42:27,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-13 01:42:27,012 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_request_irq [2021-11-13 01:42:27,012 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_request_irq [2021-11-13 01:42:27,012 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_resume [2021-11-13 01:42:27,012 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_resume [2021-11-13 01:42:27,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-13 01:42:27,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-13 01:42:27,013 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-13 01:42:27,013 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-13 01:42:27,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-13 01:42:27,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-13 01:42:27,013 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_put_txbuf [2021-11-13 01:42:27,014 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_put_txbuf [2021-11-13 01:42:27,014 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2021-11-13 01:42:27,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2021-11-13 01:42:27,014 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_msg [2021-11-13 01:42:27,014 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_msg [2021-11-13 01:42:27,014 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-13 01:42:27,014 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-13 01:42:27,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2021-11-13 01:42:27,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2021-11-13 01:42:27,015 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-13 01:42:27,015 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-13 01:42:27,015 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-13 01:42:27,015 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-13 01:42:27,015 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_shutdown [2021-11-13 01:42:27,015 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_shutdown [2021-11-13 01:42:27,016 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-13 01:42:27,016 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-13 01:42:27,016 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-13 01:42:27,016 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-13 01:42:27,016 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_setup_tx_resources [2021-11-13 01:42:27,016 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_setup_tx_resources [2021-11-13 01:42:27,016 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-13 01:42:27,017 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-13 01:42:27,017 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_get_eeprom_len [2021-11-13 01:42:27,017 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_get_eeprom_len [2021-11-13 01:42:27,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-13 01:42:27,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-13 01:42:27,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-13 01:42:27,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-13 01:42:27,018 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~X~~bool~0~TO~~s32~0 [2021-11-13 01:42:27,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~X~~bool~0~TO~~s32~0 [2021-11-13 01:42:27,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-13 01:42:27,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-13 01:42:27,018 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2021-11-13 01:42:27,018 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2021-11-13 01:42:27,019 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-13 01:42:27,019 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-13 01:42:27,019 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-13 01:42:27,019 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-13 01:42:27,019 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-11-13 01:42:27,019 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-11-13 01:42:27,019 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_io_resume [2021-11-13 01:42:27,020 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_io_resume [2021-11-13 01:42:27,020 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_free_rx_resources [2021-11-13 01:42:27,020 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_free_rx_resources [2021-11-13 01:42:27,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_2_6 [2021-11-13 01:42:27,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_2_6 [2021-11-13 01:42:27,020 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_set_multi [2021-11-13 01:42:27,020 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_set_multi [2021-11-13 01:42:27,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-13 01:42:27,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-13 01:42:27,021 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_tx_timeout [2021-11-13 01:42:27,021 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_tx_timeout [2021-11-13 01:42:27,021 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-13 01:42:27,021 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-13 01:42:27,021 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_posted_mbx [2021-11-13 01:42:27,022 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_posted_mbx [2021-11-13 01:42:27,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2021-11-13 01:42:27,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2021-11-13 01:42:27,022 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-13 01:42:27,022 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-13 01:42:27,022 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_up [2021-11-13 01:42:27,022 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_up [2021-11-13 01:42:27,023 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-13 01:42:27,023 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-13 01:42:27,023 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2021-11-13 01:42:27,023 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2021-11-13 01:42:27,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-13 01:42:27,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-13 01:42:27,023 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-13 01:42:28,645 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 01:43:51,193 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-13 01:43:51,308 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:43:51,308 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 01:43:51,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:43:51 BoogieIcfgContainer [2021-11-13 01:43:51,316 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:43:51,317 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:43:51,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:43:51,321 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:43:51,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:42:18" (1/3) ... [2021-11-13 01:43:51,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c010378 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:43:51, skipping insertion in model container [2021-11-13 01:43:51,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:25" (2/3) ... [2021-11-13 01:43:51,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c010378 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:43:51, skipping insertion in model container [2021-11-13 01:43:51,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:43:51" (3/3) ... [2021-11-13 01:43:51,324 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-13 01:43:51,329 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:43:51,329 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-13 01:43:51,392 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:43:51,399 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 [2021-11-13 01:43:51,399 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-13 01:43:51,491 INFO L276 IsEmpty]: Start isEmpty. Operand has 2990 states, 2040 states have (on average 1.2627450980392156) internal successors, (2576), 2082 states have internal predecessors, (2576), 784 states have call successors, (784), 165 states have call predecessors, (784), 164 states have return successors, (776), 762 states have call predecessors, (776), 776 states have call successors, (776) [2021-11-13 01:43:51,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2021-11-13 01:43:51,543 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:43:51,544 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:43:51,545 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:43:51,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:43:51,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1295442260, now seen corresponding path program 1 times [2021-11-13 01:43:51,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:43:51,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1829273053] [2021-11-13 01:43:51,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:43:51,575 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:43:51,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:43:51,579 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:43:51,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 01:43:56,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:43:56,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 2706 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:43:56,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:43:57,346 INFO L134 CoverageAnalysis]: Checked inductivity of 2556 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 2484 trivial. 0 not checked. [2021-11-13 01:43:57,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:43:58,323 INFO L134 CoverageAnalysis]: Checked inductivity of 2556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2556 trivial. 0 not checked. [2021-11-13 01:43:58,324 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:43:58,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1829273053] [2021-11-13 01:43:58,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1829273053] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:43:58,330 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:43:58,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 01:43:58,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83341242] [2021-11-13 01:43:58,334 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:43:58,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:43:58,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:43:58,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:43:58,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:43:58,400 INFO L87 Difference]: Start difference. First operand has 2990 states, 2040 states have (on average 1.2627450980392156) internal successors, (2576), 2082 states have internal predecessors, (2576), 784 states have call successors, (784), 165 states have call predecessors, (784), 164 states have return successors, (776), 762 states have call predecessors, (776), 776 states have call successors, (776) Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 4 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2021-11-13 01:44:00,849 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:44:15,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:44:15,187 INFO L93 Difference]: Finished difference Result 10353 states and 14458 transitions. [2021-11-13 01:44:15,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:44:15,191 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 4 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) Word has length 316 [2021-11-13 01:44:15,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:44:15,288 INFO L225 Difference]: With dead ends: 10353 [2021-11-13 01:44:15,289 INFO L226 Difference]: Without dead ends: 7303 [2021-11-13 01:44:15,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 630 GetRequests, 628 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:44:15,530 INFO L933 BasicCegarLoop]: 5560 mSDtfsCounter, 8749 mSDsluCounter, 5644 mSDsCounter, 0 mSdLazyCounter, 1636 mSolverCounterSat, 1050 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14243.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8749 SdHoareTripleChecker+Valid, 11204 SdHoareTripleChecker+Invalid, 2687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 92.37ms SdHoareTripleChecker+Time, 1050 IncrementalHoareTripleChecker+Valid, 1636 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15930.30ms IncrementalHoareTripleChecker+Time [2021-11-13 01:44:15,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8749 Valid, 11204 Invalid, 2687 Unknown, 0 Unchecked, 92.37ms Time], IncrementalHoareTripleChecker [1050 Valid, 1636 Invalid, 1 Unknown, 0 Unchecked, 15930.30ms Time] [2021-11-13 01:44:15,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7303 states. [2021-11-13 01:44:16,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7303 to 7293. [2021-11-13 01:44:16,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7293 states, 5096 states have (on average 1.2604003139717426) internal successors, (6423), 5172 states have internal predecessors, (6423), 1772 states have call successors, (1772), 423 states have call predecessors, (1772), 423 states have return successors, (1772), 1746 states have call predecessors, (1772), 1772 states have call successors, (1772) [2021-11-13 01:44:16,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7293 states to 7293 states and 9967 transitions. [2021-11-13 01:44:16,179 INFO L78 Accepts]: Start accepts. Automaton has 7293 states and 9967 transitions. Word has length 316 [2021-11-13 01:44:16,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:44:16,185 INFO L470 AbstractCegarLoop]: Abstraction has 7293 states and 9967 transitions. [2021-11-13 01:44:16,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 4 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2021-11-13 01:44:16,186 INFO L276 IsEmpty]: Start isEmpty. Operand 7293 states and 9967 transitions. [2021-11-13 01:44:16,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2021-11-13 01:44:16,200 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:44:16,201 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:44:16,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 01:44:16,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:44:16,415 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:44:16,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:44:16,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1361823584, now seen corresponding path program 1 times [2021-11-13 01:44:16,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:44:16,426 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1558370818] [2021-11-13 01:44:16,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:44:16,426 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:44:16,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:44:16,428 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:44:16,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 01:44:20,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:44:20,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 2643 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:44:20,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:44:21,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2556 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 2484 trivial. 0 not checked. [2021-11-13 01:44:21,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:44:22,742 INFO L134 CoverageAnalysis]: Checked inductivity of 2556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2556 trivial. 0 not checked. [2021-11-13 01:44:22,743 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:44:22,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1558370818] [2021-11-13 01:44:22,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1558370818] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:44:22,743 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:44:22,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-13 01:44:22,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930752505] [2021-11-13 01:44:22,744 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:44:22,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:44:22,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:44:22,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:44:22,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:44:22,747 INFO L87 Difference]: Start difference. First operand 7293 states and 9967 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-13 01:44:25,098 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:44:26,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:44:26,328 INFO L93 Difference]: Finished difference Result 18675 states and 25410 transitions. [2021-11-13 01:44:26,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:44:26,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 327 [2021-11-13 01:44:26,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:44:26,449 INFO L225 Difference]: With dead ends: 18675 [2021-11-13 01:44:26,449 INFO L226 Difference]: Without dead ends: 11435 [2021-11-13 01:44:26,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 652 GetRequests, 651 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:44:26,498 INFO L933 BasicCegarLoop]: 4622 mSDtfsCounter, 2962 mSDsluCounter, 3888 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2887.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2962 SdHoareTripleChecker+Valid, 8510 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.40ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3002.06ms IncrementalHoareTripleChecker+Time [2021-11-13 01:44:26,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2962 Valid, 8510 Invalid, 128 Unknown, 0 Unchecked, 24.40ms Time], IncrementalHoareTripleChecker [7 Valid, 120 Invalid, 1 Unknown, 0 Unchecked, 3002.06ms Time] [2021-11-13 01:44:26,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11435 states. [2021-11-13 01:44:27,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11435 to 11429. [2021-11-13 01:44:27,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11429 states, 7912 states have (on average 1.2532861476238626) internal successors, (9916), 8031 states have internal predecessors, (9916), 2792 states have call successors, (2792), 724 states have call predecessors, (2792), 723 states have return successors, (2793), 2745 states have call predecessors, (2793), 2792 states have call successors, (2793) [2021-11-13 01:44:27,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11429 states to 11429 states and 15501 transitions. [2021-11-13 01:44:27,364 INFO L78 Accepts]: Start accepts. Automaton has 11429 states and 15501 transitions. Word has length 327 [2021-11-13 01:44:27,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:44:27,367 INFO L470 AbstractCegarLoop]: Abstraction has 11429 states and 15501 transitions. [2021-11-13 01:44:27,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-13 01:44:27,373 INFO L276 IsEmpty]: Start isEmpty. Operand 11429 states and 15501 transitions. [2021-11-13 01:44:27,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2021-11-13 01:44:27,393 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:44:27,393 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 24, 24, 24, 24, 24, 24, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:44:27,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 01:44:27,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:44:27,609 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:44:27,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:44:27,610 INFO L85 PathProgramCache]: Analyzing trace with hash 606144093, now seen corresponding path program 1 times [2021-11-13 01:44:27,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:44:27,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [332752756] [2021-11-13 01:44:27,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:44:27,618 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:44:27,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:44:27,619 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:44:27,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 01:44:32,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:44:32,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 2888 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:44:32,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:44:33,734 INFO L134 CoverageAnalysis]: Checked inductivity of 3004 backedges. 355 proven. 0 refuted. 0 times theorem prover too weak. 2649 trivial. 0 not checked. [2021-11-13 01:44:33,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:44:34,916 INFO L134 CoverageAnalysis]: Checked inductivity of 3004 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 2985 trivial. 0 not checked. [2021-11-13 01:44:34,917 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:44:34,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [332752756] [2021-11-13 01:44:34,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [332752756] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:44:34,917 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:44:34,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 01:44:34,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998980299] [2021-11-13 01:44:34,918 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:44:34,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:44:34,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:44:34,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:44:34,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:44:34,921 INFO L87 Difference]: Start difference. First operand 11429 states and 15501 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 4 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) [2021-11-13 01:44:37,192 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:44:48,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:44:48,017 INFO L93 Difference]: Finished difference Result 30330 states and 41127 transitions. [2021-11-13 01:44:48,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:44:48,018 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 4 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) Word has length 409 [2021-11-13 01:44:48,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:44:48,172 INFO L225 Difference]: With dead ends: 30330 [2021-11-13 01:44:48,172 INFO L226 Difference]: Without dead ends: 18954 [2021-11-13 01:44:48,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 816 GetRequests, 814 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:44:48,234 INFO L933 BasicCegarLoop]: 7320 mSDtfsCounter, 6715 mSDsluCounter, 5942 mSDsCounter, 0 mSdLazyCounter, 1564 mSolverCounterSat, 37 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11270.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6715 SdHoareTripleChecker+Valid, 13262 SdHoareTripleChecker+Invalid, 1602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 48.43ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1564 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12261.53ms IncrementalHoareTripleChecker+Time [2021-11-13 01:44:48,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6715 Valid, 13262 Invalid, 1602 Unknown, 0 Unchecked, 48.43ms Time], IncrementalHoareTripleChecker [37 Valid, 1564 Invalid, 1 Unknown, 0 Unchecked, 12261.53ms Time] [2021-11-13 01:44:48,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18954 states. [2021-11-13 01:44:49,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18954 to 18942. [2021-11-13 01:44:49,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18942 states, 13247 states have (on average 1.2580961727183513) internal successors, (16666), 13420 states have internal predecessors, (16666), 4498 states have call successors, (4498), 1196 states have call predecessors, (4498), 1195 states have return successors, (4499), 4433 states have call predecessors, (4499), 4498 states have call successors, (4499) [2021-11-13 01:44:49,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18942 states to 18942 states and 25663 transitions. [2021-11-13 01:44:49,422 INFO L78 Accepts]: Start accepts. Automaton has 18942 states and 25663 transitions. Word has length 409 [2021-11-13 01:44:49,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:44:49,424 INFO L470 AbstractCegarLoop]: Abstraction has 18942 states and 25663 transitions. [2021-11-13 01:44:49,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 4 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) [2021-11-13 01:44:49,424 INFO L276 IsEmpty]: Start isEmpty. Operand 18942 states and 25663 transitions. [2021-11-13 01:44:49,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2021-11-13 01:44:49,444 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:44:49,445 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 24, 24, 24, 24, 24, 24, 9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:44:49,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 01:44:49,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:44:49,669 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:44:49,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:44:49,670 INFO L85 PathProgramCache]: Analyzing trace with hash -132172361, now seen corresponding path program 1 times [2021-11-13 01:44:49,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:44:49,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1539133156] [2021-11-13 01:44:49,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:44:49,674 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:44:49,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:44:49,676 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:44:49,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 01:44:54,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:44:54,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 3040 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:44:54,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:44:55,740 INFO L134 CoverageAnalysis]: Checked inductivity of 3149 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 3003 trivial. 0 not checked. [2021-11-13 01:44:55,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:44:56,857 INFO L134 CoverageAnalysis]: Checked inductivity of 3149 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 3122 trivial. 0 not checked. [2021-11-13 01:44:56,857 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:44:56,857 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1539133156] [2021-11-13 01:44:56,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1539133156] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:44:56,857 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:44:56,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-13 01:44:56,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816167435] [2021-11-13 01:44:56,858 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:44:56,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:44:56,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:44:56,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:44:56,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:44:56,860 INFO L87 Difference]: Start difference. First operand 18942 states and 25663 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-13 01:44:59,154 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:45:00,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:45:00,069 INFO L93 Difference]: Finished difference Result 40338 states and 54647 transitions. [2021-11-13 01:45:00,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:45:00,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 495 [2021-11-13 01:45:00,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:45:00,198 INFO L225 Difference]: With dead ends: 40338 [2021-11-13 01:45:00,198 INFO L226 Difference]: Without dead ends: 21449 [2021-11-13 01:45:00,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 988 GetRequests, 987 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:45:00,276 INFO L933 BasicCegarLoop]: 6863 mSDtfsCounter, 2814 mSDsluCounter, 3979 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2530.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2814 SdHoareTripleChecker+Valid, 10842 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.18ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2615.08ms IncrementalHoareTripleChecker+Time [2021-11-13 01:45:00,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2814 Valid, 10842 Invalid, 79 Unknown, 0 Unchecked, 14.18ms Time], IncrementalHoareTripleChecker [11 Valid, 67 Invalid, 1 Unknown, 0 Unchecked, 2615.08ms Time] [2021-11-13 01:45:00,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21449 states. [2021-11-13 01:45:01,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21449 to 21443. [2021-11-13 01:45:01,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21443 states, 15024 states have (on average 1.2585197018104366) internal successors, (18908), 15215 states have internal predecessors, (18908), 5065 states have call successors, (5065), 1353 states have call predecessors, (5065), 1352 states have return successors, (5066), 4994 states have call predecessors, (5066), 5065 states have call successors, (5066) [2021-11-13 01:45:01,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21443 states to 21443 states and 29039 transitions. [2021-11-13 01:45:01,720 INFO L78 Accepts]: Start accepts. Automaton has 21443 states and 29039 transitions. Word has length 495 [2021-11-13 01:45:01,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:45:01,722 INFO L470 AbstractCegarLoop]: Abstraction has 21443 states and 29039 transitions. [2021-11-13 01:45:01,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-13 01:45:01,722 INFO L276 IsEmpty]: Start isEmpty. Operand 21443 states and 29039 transitions. [2021-11-13 01:45:01,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2021-11-13 01:45:01,753 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:45:01,754 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 24, 24, 24, 24, 24, 24, 9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:45:01,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 01:45:01,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:45:01,977 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:45:01,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:45:01,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1126866059, now seen corresponding path program 1 times [2021-11-13 01:45:01,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:45:01,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1033143981] [2021-11-13 01:45:01,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:45:01,985 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:45:01,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:45:01,986 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:45:01,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 01:45:07,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:45:07,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 3040 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:45:07,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:45:08,466 INFO L134 CoverageAnalysis]: Checked inductivity of 3149 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 3003 trivial. 0 not checked. [2021-11-13 01:45:08,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:45:09,604 INFO L134 CoverageAnalysis]: Checked inductivity of 3149 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 3122 trivial. 0 not checked. [2021-11-13 01:45:09,605 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:45:09,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1033143981] [2021-11-13 01:45:09,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1033143981] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:45:09,605 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:45:09,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-13 01:45:09,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089411956] [2021-11-13 01:45:09,606 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:45:09,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:45:09,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:45:09,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:45:09,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:45:09,609 INFO L87 Difference]: Start difference. First operand 21443 states and 29039 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-13 01:45:12,034 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:45:13,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:45:13,140 INFO L93 Difference]: Finished difference Result 46664 states and 63138 transitions. [2021-11-13 01:45:13,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:45:13,141 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 495 [2021-11-13 01:45:13,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:45:13,292 INFO L225 Difference]: With dead ends: 46664 [2021-11-13 01:45:13,292 INFO L226 Difference]: Without dead ends: 25274 [2021-11-13 01:45:13,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 988 GetRequests, 987 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:45:13,377 INFO L933 BasicCegarLoop]: 7131 mSDtfsCounter, 3689 mSDsluCounter, 3477 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2671.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3689 SdHoareTripleChecker+Valid, 10608 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.94ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2756.80ms IncrementalHoareTripleChecker+Time [2021-11-13 01:45:13,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3689 Valid, 10608 Invalid, 85 Unknown, 0 Unchecked, 16.94ms Time], IncrementalHoareTripleChecker [14 Valid, 70 Invalid, 1 Unknown, 0 Unchecked, 2756.80ms Time] [2021-11-13 01:45:13,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25274 states. [2021-11-13 01:45:14,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25274 to 25268. [2021-11-13 01:45:14,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25268 states, 17678 states have (on average 1.256194139608553) internal successors, (22207), 17905 states have internal predecessors, (22207), 5970 states have call successors, (5970), 1620 states have call predecessors, (5970), 1618 states have return successors, (5971), 5887 states have call predecessors, (5971), 5970 states have call successors, (5971) [2021-11-13 01:45:15,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25268 states to 25268 states and 34148 transitions. [2021-11-13 01:45:15,120 INFO L78 Accepts]: Start accepts. Automaton has 25268 states and 34148 transitions. Word has length 495 [2021-11-13 01:45:15,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:45:15,123 INFO L470 AbstractCegarLoop]: Abstraction has 25268 states and 34148 transitions. [2021-11-13 01:45:15,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-13 01:45:15,124 INFO L276 IsEmpty]: Start isEmpty. Operand 25268 states and 34148 transitions. [2021-11-13 01:45:15,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2021-11-13 01:45:15,167 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:45:15,168 INFO L514 BasicCegarLoop]: trace histogram [32, 32, 24, 24, 24, 24, 24, 24, 11, 11, 11, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:45:15,245 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-13 01:45:15,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:45:15,393 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:45:15,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:45:15,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1386253054, now seen corresponding path program 1 times [2021-11-13 01:45:15,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:45:15,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [178411503] [2021-11-13 01:45:15,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:45:15,398 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:45:15,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:45:15,399 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:45:15,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 01:45:20,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:45:20,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 3172 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:45:20,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:45:21,939 INFO L134 CoverageAnalysis]: Checked inductivity of 3463 backedges. 184 proven. 0 refuted. 0 times theorem prover too weak. 3279 trivial. 0 not checked. [2021-11-13 01:45:21,939 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:45:23,342 INFO L134 CoverageAnalysis]: Checked inductivity of 3463 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 3412 trivial. 0 not checked. [2021-11-13 01:45:23,343 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:45:23,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [178411503] [2021-11-13 01:45:23,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [178411503] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:45:23,343 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:45:23,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-13 01:45:23,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703994333] [2021-11-13 01:45:23,345 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:45:23,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:45:23,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:45:23,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:45:23,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:45:23,347 INFO L87 Difference]: Start difference. First operand 25268 states and 34148 transitions. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 3 states have call successors, (65), 3 states have call predecessors, (65), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2021-11-13 01:45:25,661 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:45:26,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:45:26,764 INFO L93 Difference]: Finished difference Result 52989 states and 71619 transitions. [2021-11-13 01:45:26,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:45:26,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 3 states have call successors, (65), 3 states have call predecessors, (65), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 555 [2021-11-13 01:45:26,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:45:26,912 INFO L225 Difference]: With dead ends: 52989 [2021-11-13 01:45:26,913 INFO L226 Difference]: Without dead ends: 27774 [2021-11-13 01:45:27,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1108 GetRequests, 1107 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:45:27,007 INFO L933 BasicCegarLoop]: 6245 mSDtfsCounter, 2815 mSDsluCounter, 3978 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2552.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2815 SdHoareTripleChecker+Valid, 10223 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.58ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2652.25ms IncrementalHoareTripleChecker+Time [2021-11-13 01:45:27,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2815 Valid, 10223 Invalid, 81 Unknown, 0 Unchecked, 12.58ms Time], IncrementalHoareTripleChecker [10 Valid, 70 Invalid, 1 Unknown, 0 Unchecked, 2652.25ms Time] [2021-11-13 01:45:27,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27774 states. [2021-11-13 01:45:28,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27774 to 27768. [2021-11-13 01:45:28,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27768 states, 19455 states have (on average 1.2566949370341813) internal successors, (24449), 19700 states have internal predecessors, (24449), 6537 states have call successors, (6537), 1776 states have call predecessors, (6537), 1774 states have return successors, (6538), 6448 states have call predecessors, (6538), 6537 states have call successors, (6538) [2021-11-13 01:45:28,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27768 states to 27768 states and 37524 transitions. [2021-11-13 01:45:28,524 INFO L78 Accepts]: Start accepts. Automaton has 27768 states and 37524 transitions. Word has length 555 [2021-11-13 01:45:28,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:45:28,526 INFO L470 AbstractCegarLoop]: Abstraction has 27768 states and 37524 transitions. [2021-11-13 01:45:28,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 3 states have call successors, (65), 3 states have call predecessors, (65), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2021-11-13 01:45:28,527 INFO L276 IsEmpty]: Start isEmpty. Operand 27768 states and 37524 transitions. [2021-11-13 01:45:28,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2021-11-13 01:45:28,557 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:45:28,558 INFO L514 BasicCegarLoop]: trace histogram [32, 32, 24, 24, 24, 24, 24, 24, 11, 11, 11, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:45:28,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-13 01:45:28,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:45:28,781 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:45:28,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:45:28,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1914020544, now seen corresponding path program 1 times [2021-11-13 01:45:28,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:45:28,787 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [965941432] [2021-11-13 01:45:28,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:45:28,787 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:45:28,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:45:28,788 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:45:28,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 01:45:33,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:45:33,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 3172 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:45:33,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:45:35,209 INFO L134 CoverageAnalysis]: Checked inductivity of 3463 backedges. 184 proven. 0 refuted. 0 times theorem prover too weak. 3279 trivial. 0 not checked. [2021-11-13 01:45:35,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:45:36,432 INFO L134 CoverageAnalysis]: Checked inductivity of 3463 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 3412 trivial. 0 not checked. [2021-11-13 01:45:36,433 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:45:36,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [965941432] [2021-11-13 01:45:36,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [965941432] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:45:36,433 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:45:36,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-13 01:45:36,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113182490] [2021-11-13 01:45:36,434 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:45:36,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:45:36,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:45:36,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:45:36,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:45:36,437 INFO L87 Difference]: Start difference. First operand 27768 states and 37524 transitions. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 3 states have call successors, (65), 3 states have call predecessors, (65), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2021-11-13 01:45:38,784 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:45:40,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:45:40,066 INFO L93 Difference]: Finished difference Result 58021 states and 78413 transitions. [2021-11-13 01:45:40,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:45:40,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 3 states have call successors, (65), 3 states have call predecessors, (65), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 555 [2021-11-13 01:45:40,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:45:40,214 INFO L225 Difference]: With dead ends: 58021 [2021-11-13 01:45:40,215 INFO L226 Difference]: Without dead ends: 30306 [2021-11-13 01:45:40,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1108 GetRequests, 1107 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:45:40,315 INFO L933 BasicCegarLoop]: 6866 mSDtfsCounter, 2833 mSDsluCounter, 3979 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2579.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2833 SdHoareTripleChecker+Valid, 10845 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.95ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2684.06ms IncrementalHoareTripleChecker+Time [2021-11-13 01:45:40,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2833 Valid, 10845 Invalid, 83 Unknown, 0 Unchecked, 13.95ms Time], IncrementalHoareTripleChecker [11 Valid, 71 Invalid, 1 Unknown, 0 Unchecked, 2684.06ms Time] [2021-11-13 01:45:40,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30306 states. [2021-11-13 01:45:41,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30306 to 30300. [2021-11-13 01:45:41,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30300 states, 21260 states have (on average 1.2571495766698024) internal successors, (26727), 21523 states have internal predecessors, (26727), 7106 states have call successors, (7106), 1934 states have call predecessors, (7106), 1932 states have return successors, (7107), 7011 states have call predecessors, (7107), 7106 states have call successors, (7107) [2021-11-13 01:45:42,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30300 states to 30300 states and 40940 transitions. [2021-11-13 01:45:42,249 INFO L78 Accepts]: Start accepts. Automaton has 30300 states and 40940 transitions. Word has length 555 [2021-11-13 01:45:42,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:45:42,270 INFO L470 AbstractCegarLoop]: Abstraction has 30300 states and 40940 transitions. [2021-11-13 01:45:42,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 3 states have call successors, (65), 3 states have call predecessors, (65), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2021-11-13 01:45:42,271 INFO L276 IsEmpty]: Start isEmpty. Operand 30300 states and 40940 transitions. [2021-11-13 01:45:42,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 560 [2021-11-13 01:45:42,293 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:45:42,294 INFO L514 BasicCegarLoop]: trace histogram [34, 34, 24, 24, 24, 24, 24, 24, 11, 11, 11, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:45:42,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-13 01:45:42,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:45:42,511 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:45:42,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:45:42,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1302199405, now seen corresponding path program 1 times [2021-11-13 01:45:42,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:45:42,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [500305261] [2021-11-13 01:45:42,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:45:42,519 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:45:42,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:45:42,520 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:45:42,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-13 01:45:47,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:45:47,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 3174 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-13 01:45:47,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:45:50,131 INFO L134 CoverageAnalysis]: Checked inductivity of 3702 backedges. 514 proven. 0 refuted. 0 times theorem prover too weak. 3188 trivial. 0 not checked. [2021-11-13 01:45:50,131 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:45:52,299 INFO L134 CoverageAnalysis]: Checked inductivity of 3702 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 3570 trivial. 0 not checked. [2021-11-13 01:45:52,299 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:45:52,299 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [500305261] [2021-11-13 01:45:52,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [500305261] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:45:52,300 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:45:52,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 16 [2021-11-13 01:45:52,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844425655] [2021-11-13 01:45:52,300 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:45:52,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-13 01:45:52,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:45:52,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-13 01:45:52,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-11-13 01:45:52,305 INFO L87 Difference]: Start difference. First operand 30300 states and 40940 transitions. Second operand has 16 states, 15 states have (on average 13.6) internal successors, (204), 15 states have internal predecessors, (204), 6 states have call successors, (65), 3 states have call predecessors, (65), 7 states have return successors, (63), 6 states have call predecessors, (63), 6 states have call successors, (63) [2021-11-13 01:45:54,570 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:45:56,595 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:46:39,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:46:39,673 INFO L93 Difference]: Finished difference Result 89871 states and 123080 transitions. [2021-11-13 01:46:39,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-13 01:46:39,674 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 13.6) internal successors, (204), 15 states have internal predecessors, (204), 6 states have call successors, (65), 3 states have call predecessors, (65), 7 states have return successors, (63), 6 states have call predecessors, (63), 6 states have call successors, (63) Word has length 559 [2021-11-13 01:46:39,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:46:39,939 INFO L225 Difference]: With dead ends: 89871 [2021-11-13 01:46:39,939 INFO L226 Difference]: Without dead ends: 59594 [2021-11-13 01:46:40,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1132 GetRequests, 1104 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=138, Invalid=732, Unknown=0, NotChecked=0, Total=870 [2021-11-13 01:46:40,061 INFO L933 BasicCegarLoop]: 9432 mSDtfsCounter, 9532 mSDsluCounter, 85828 mSDsCounter, 0 mSdLazyCounter, 8074 mSolverCounterSat, 1382 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40256.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9910 SdHoareTripleChecker+Valid, 95260 SdHoareTripleChecker+Invalid, 9458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 241.06ms SdHoareTripleChecker+Time, 1382 IncrementalHoareTripleChecker+Valid, 8074 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43284.73ms IncrementalHoareTripleChecker+Time [2021-11-13 01:46:40,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9910 Valid, 95260 Invalid, 9458 Unknown, 0 Unchecked, 241.06ms Time], IncrementalHoareTripleChecker [1382 Valid, 8074 Invalid, 2 Unknown, 0 Unchecked, 43284.73ms Time] [2021-11-13 01:46:40,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59594 states. [2021-11-13 01:46:43,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59594 to 47526. [2021-11-13 01:46:43,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47526 states, 33370 states have (on average 1.2571471381480372) internal successors, (41951), 33793 states have internal predecessors, (41951), 11139 states have call successors, (11139), 3018 states have call predecessors, (11139), 3015 states have return successors, (11141), 10981 states have call predecessors, (11141), 11139 states have call successors, (11141) [2021-11-13 01:46:43,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47526 states to 47526 states and 64231 transitions. [2021-11-13 01:46:43,847 INFO L78 Accepts]: Start accepts. Automaton has 47526 states and 64231 transitions. Word has length 559 [2021-11-13 01:46:43,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:46:43,848 INFO L470 AbstractCegarLoop]: Abstraction has 47526 states and 64231 transitions. [2021-11-13 01:46:43,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 13.6) internal successors, (204), 15 states have internal predecessors, (204), 6 states have call successors, (65), 3 states have call predecessors, (65), 7 states have return successors, (63), 6 states have call predecessors, (63), 6 states have call successors, (63) [2021-11-13 01:46:43,849 INFO L276 IsEmpty]: Start isEmpty. Operand 47526 states and 64231 transitions. [2021-11-13 01:46:43,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 572 [2021-11-13 01:46:43,877 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:46:43,878 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 26, 26, 26, 26, 26, 26, 11, 11, 11, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:46:43,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-13 01:46:44,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:46:44,093 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:46:44,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:46:44,094 INFO L85 PathProgramCache]: Analyzing trace with hash 243547334, now seen corresponding path program 1 times [2021-11-13 01:46:44,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:46:44,098 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1671659976] [2021-11-13 01:46:44,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:46:44,098 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:46:44,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:46:44,099 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:46:44,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-13 01:46:49,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:46:50,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 3368 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 01:46:50,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:46:51,504 INFO L134 CoverageAnalysis]: Checked inductivity of 3803 backedges. 636 proven. 0 refuted. 0 times theorem prover too weak. 3167 trivial. 0 not checked. [2021-11-13 01:46:51,504 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:46:52,850 INFO L134 CoverageAnalysis]: Checked inductivity of 3803 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3803 trivial. 0 not checked. [2021-11-13 01:46:52,851 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:46:52,851 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1671659976] [2021-11-13 01:46:52,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1671659976] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:46:52,851 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:46:52,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-13 01:46:52,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486478640] [2021-11-13 01:46:52,852 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:46:52,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 01:46:52,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:46:52,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 01:46:52,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:46:52,854 INFO L87 Difference]: Start difference. First operand 47526 states and 64231 transitions. Second operand has 6 states, 6 states have (on average 33.0) internal successors, (198), 5 states have internal predecessors, (198), 2 states have call successors, (71), 2 states have call predecessors, (71), 3 states have return successors, (67), 3 states have call predecessors, (67), 2 states have call successors, (67) [2021-11-13 01:46:56,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:46:56,242 INFO L93 Difference]: Finished difference Result 109506 states and 149984 transitions. [2021-11-13 01:46:56,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:46:56,242 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 33.0) internal successors, (198), 5 states have internal predecessors, (198), 2 states have call successors, (71), 2 states have call predecessors, (71), 3 states have return successors, (67), 3 states have call predecessors, (67), 2 states have call successors, (67) Word has length 571 [2021-11-13 01:46:56,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:46:56,535 INFO L225 Difference]: With dead ends: 109506 [2021-11-13 01:46:56,535 INFO L226 Difference]: Without dead ends: 62033 [2021-11-13 01:46:56,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1141 GetRequests, 1136 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:46:56,675 INFO L933 BasicCegarLoop]: 4618 mSDtfsCounter, 980 mSDsluCounter, 17867 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 375.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1272 SdHoareTripleChecker+Valid, 22485 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 36.83ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 409.41ms IncrementalHoareTripleChecker+Time [2021-11-13 01:46:56,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1272 Valid, 22485 Invalid, 53 Unknown, 0 Unchecked, 36.83ms Time], IncrementalHoareTripleChecker [11 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 409.41ms Time] [2021-11-13 01:46:56,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62033 states. [2021-11-13 01:46:59,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62033 to 47546. [2021-11-13 01:46:59,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47546 states, 33386 states have (on average 1.2570239022344696) internal successors, (41967), 33809 states have internal predecessors, (41967), 11139 states have call successors, (11139), 3018 states have call predecessors, (11139), 3019 states have return successors, (11149), 10985 states have call predecessors, (11149), 11139 states have call successors, (11149) [2021-11-13 01:46:59,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47546 states to 47546 states and 64255 transitions. [2021-11-13 01:47:00,008 INFO L78 Accepts]: Start accepts. Automaton has 47546 states and 64255 transitions. Word has length 571 [2021-11-13 01:47:00,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:47:00,009 INFO L470 AbstractCegarLoop]: Abstraction has 47546 states and 64255 transitions. [2021-11-13 01:47:00,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 33.0) internal successors, (198), 5 states have internal predecessors, (198), 2 states have call successors, (71), 2 states have call predecessors, (71), 3 states have return successors, (67), 3 states have call predecessors, (67), 2 states have call successors, (67) [2021-11-13 01:47:00,010 INFO L276 IsEmpty]: Start isEmpty. Operand 47546 states and 64255 transitions. [2021-11-13 01:47:00,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2021-11-13 01:47:00,036 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:47:00,037 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 26, 26, 26, 26, 26, 26, 11, 11, 11, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:47:00,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-13 01:47:00,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:47:00,262 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:47:00,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:47:00,262 INFO L85 PathProgramCache]: Analyzing trace with hash -721424547, now seen corresponding path program 1 times [2021-11-13 01:47:00,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:47:00,268 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2138030135] [2021-11-13 01:47:00,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:47:00,268 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:47:00,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:47:00,270 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:47:00,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-13 01:47:06,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:47:06,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 3384 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 01:47:06,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:47:07,600 INFO L134 CoverageAnalysis]: Checked inductivity of 3803 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 3479 trivial. 0 not checked. [2021-11-13 01:47:07,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:47:08,870 INFO L134 CoverageAnalysis]: Checked inductivity of 3803 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3803 trivial. 0 not checked. [2021-11-13 01:47:08,870 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:47:08,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2138030135] [2021-11-13 01:47:08,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2138030135] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:47:08,870 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:47:08,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-13 01:47:08,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856470305] [2021-11-13 01:47:08,871 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:47:08,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 01:47:08,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:47:08,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 01:47:08,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:47:08,875 INFO L87 Difference]: Start difference. First operand 47546 states and 64255 transitions. Second operand has 8 states, 8 states have (on average 25.375) internal successors, (203), 8 states have internal predecessors, (203), 2 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2021-11-13 01:47:11,823 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:47:14,660 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:47:16,744 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:47:23,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:47:23,520 INFO L93 Difference]: Finished difference Result 139470 states and 194582 transitions. [2021-11-13 01:47:23,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:47:23,521 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 25.375) internal successors, (203), 8 states have internal predecessors, (203), 2 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) Word has length 574 [2021-11-13 01:47:23,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:47:23,842 INFO L225 Difference]: With dead ends: 139470 [2021-11-13 01:47:23,842 INFO L226 Difference]: Without dead ends: 91977 [2021-11-13 01:47:23,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1150 GetRequests, 1142 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-13 01:47:23,957 INFO L933 BasicCegarLoop]: 5905 mSDtfsCounter, 7848 mSDsluCounter, 22453 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 1963 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9091.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8093 SdHoareTripleChecker+Valid, 28358 SdHoareTripleChecker+Invalid, 2241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 47.30ms SdHoareTripleChecker+Time, 1963 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9702.81ms IncrementalHoareTripleChecker+Time [2021-11-13 01:47:23,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8093 Valid, 28358 Invalid, 2241 Unknown, 0 Unchecked, 47.30ms Time], IncrementalHoareTripleChecker [1963 Valid, 275 Invalid, 3 Unknown, 0 Unchecked, 9702.81ms Time] [2021-11-13 01:47:24,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91977 states. [2021-11-13 01:47:27,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91977 to 47558. [2021-11-13 01:47:27,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47558 states, 33398 states have (on average 1.2569315527875922) internal successors, (41979), 33821 states have internal predecessors, (41979), 11139 states have call successors, (11139), 3018 states have call predecessors, (11139), 3019 states have return successors, (11149), 10985 states have call predecessors, (11149), 11139 states have call successors, (11149) [2021-11-13 01:47:28,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47558 states to 47558 states and 64267 transitions. [2021-11-13 01:47:28,141 INFO L78 Accepts]: Start accepts. Automaton has 47558 states and 64267 transitions. Word has length 574 [2021-11-13 01:47:28,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:47:28,142 INFO L470 AbstractCegarLoop]: Abstraction has 47558 states and 64267 transitions. [2021-11-13 01:47:28,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 25.375) internal successors, (203), 8 states have internal predecessors, (203), 2 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2021-11-13 01:47:28,143 INFO L276 IsEmpty]: Start isEmpty. Operand 47558 states and 64267 transitions. [2021-11-13 01:47:28,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 580 [2021-11-13 01:47:28,170 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:47:28,171 INFO L514 BasicCegarLoop]: trace histogram [34, 34, 24, 24, 24, 24, 24, 24, 11, 11, 11, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:47:28,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-13 01:47:28,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:47:28,385 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:47:28,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:47:28,386 INFO L85 PathProgramCache]: Analyzing trace with hash 451036592, now seen corresponding path program 1 times [2021-11-13 01:47:28,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:47:28,389 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [139115625] [2021-11-13 01:47:28,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:47:28,389 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:47:28,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:47:28,390 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:47:28,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-13 01:47:33,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:47:33,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 3236 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-13 01:47:33,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:47:35,841 INFO L134 CoverageAnalysis]: Checked inductivity of 3702 backedges. 514 proven. 0 refuted. 0 times theorem prover too weak. 3188 trivial. 0 not checked. [2021-11-13 01:47:35,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:47:38,012 INFO L134 CoverageAnalysis]: Checked inductivity of 3702 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 3570 trivial. 0 not checked. [2021-11-13 01:47:38,013 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:47:38,013 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [139115625] [2021-11-13 01:47:38,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [139115625] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:47:38,013 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:47:38,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 17 [2021-11-13 01:47:38,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796032376] [2021-11-13 01:47:38,014 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:47:38,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-13 01:47:38,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:47:38,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-13 01:47:38,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-11-13 01:47:38,015 INFO L87 Difference]: Start difference. First operand 47558 states and 64267 transitions. Second operand has 17 states, 16 states have (on average 13.75) internal successors, (220), 16 states have internal predecessors, (220), 7 states have call successors, (67), 3 states have call predecessors, (67), 7 states have return successors, (65), 7 states have call predecessors, (65), 7 states have call successors, (65) [2021-11-13 01:47:40,311 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:48:23,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:48:23,111 INFO L93 Difference]: Finished difference Result 122866 states and 167822 transitions. [2021-11-13 01:48:23,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-13 01:48:23,112 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 13.75) internal successors, (220), 16 states have internal predecessors, (220), 7 states have call successors, (67), 3 states have call predecessors, (67), 7 states have return successors, (65), 7 states have call predecessors, (65), 7 states have call successors, (65) Word has length 579 [2021-11-13 01:48:23,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:48:23,600 INFO L225 Difference]: With dead ends: 122866 [2021-11-13 01:48:23,600 INFO L226 Difference]: Without dead ends: 75331 [2021-11-13 01:48:23,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1176 GetRequests, 1143 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=189, Invalid=1001, Unknown=0, NotChecked=0, Total=1190 [2021-11-13 01:48:23,713 INFO L933 BasicCegarLoop]: 6833 mSDtfsCounter, 11530 mSDsluCounter, 71429 mSDsCounter, 0 mSdLazyCounter, 7590 mSolverCounterSat, 2092 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35831.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11940 SdHoareTripleChecker+Valid, 78262 SdHoareTripleChecker+Invalid, 9683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 205.29ms SdHoareTripleChecker+Time, 2092 IncrementalHoareTripleChecker+Valid, 7590 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38547.97ms IncrementalHoareTripleChecker+Time [2021-11-13 01:48:23,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11940 Valid, 78262 Invalid, 9683 Unknown, 0 Unchecked, 205.29ms Time], IncrementalHoareTripleChecker [2092 Valid, 7590 Invalid, 1 Unknown, 0 Unchecked, 38547.97ms Time] [2021-11-13 01:48:23,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75331 states. [2021-11-13 01:48:26,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75331 to 47558. [2021-11-13 01:48:27,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47558 states, 33398 states have (on average 1.2569315527875922) internal successors, (41979), 33821 states have internal predecessors, (41979), 11139 states have call successors, (11139), 3018 states have call predecessors, (11139), 3019 states have return successors, (11149), 10985 states have call predecessors, (11149), 11139 states have call successors, (11149) [2021-11-13 01:48:27,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47558 states to 47558 states and 64267 transitions. [2021-11-13 01:48:27,355 INFO L78 Accepts]: Start accepts. Automaton has 47558 states and 64267 transitions. Word has length 579 [2021-11-13 01:48:27,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:48:27,356 INFO L470 AbstractCegarLoop]: Abstraction has 47558 states and 64267 transitions. [2021-11-13 01:48:27,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 13.75) internal successors, (220), 16 states have internal predecessors, (220), 7 states have call successors, (67), 3 states have call predecessors, (67), 7 states have return successors, (65), 7 states have call predecessors, (65), 7 states have call successors, (65) [2021-11-13 01:48:27,361 INFO L276 IsEmpty]: Start isEmpty. Operand 47558 states and 64267 transitions. [2021-11-13 01:48:27,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2021-11-13 01:48:27,377 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:48:27,378 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 26, 26, 26, 26, 26, 26, 13, 13, 13, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:48:27,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-13 01:48:27,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:48:27,594 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:48:27,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:48:27,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1600640883, now seen corresponding path program 1 times [2021-11-13 01:48:27,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:48:27,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [37079660] [2021-11-13 01:48:27,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:48:27,599 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:48:27,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:48:27,601 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:48:27,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-13 01:48:33,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:48:33,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 3431 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-13 01:48:33,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:48:35,177 INFO L134 CoverageAnalysis]: Checked inductivity of 3920 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 3867 trivial. 0 not checked. [2021-11-13 01:48:35,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:48:36,893 INFO L134 CoverageAnalysis]: Checked inductivity of 3920 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 3870 trivial. 0 not checked. [2021-11-13 01:48:36,893 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:48:36,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [37079660] [2021-11-13 01:48:36,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [37079660] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:48:36,893 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:48:36,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-13 01:48:36,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592254444] [2021-11-13 01:48:36,894 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:48:36,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-13 01:48:36,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:48:36,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-13 01:48:36,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-13 01:48:36,897 INFO L87 Difference]: Start difference. First operand 47558 states and 64267 transitions. Second operand has 12 states, 12 states have (on average 15.75) internal successors, (189), 10 states have internal predecessors, (189), 2 states have call successors, (61), 2 states have call predecessors, (61), 4 states have return successors, (58), 4 states have call predecessors, (58), 2 states have call successors, (58) [2021-11-13 01:48:41,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:48:41,686 INFO L93 Difference]: Finished difference Result 101213 states and 137643 transitions. [2021-11-13 01:48:41,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 01:48:41,687 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 15.75) internal successors, (189), 10 states have internal predecessors, (189), 2 states have call successors, (61), 2 states have call predecessors, (61), 4 states have return successors, (58), 4 states have call predecessors, (58), 2 states have call successors, (58) Word has length 595 [2021-11-13 01:48:41,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:48:41,958 INFO L225 Difference]: With dead ends: 101213 [2021-11-13 01:48:41,958 INFO L226 Difference]: Without dead ends: 53708 [2021-11-13 01:48:42,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1191 GetRequests, 1179 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-11-13 01:48:42,069 INFO L933 BasicCegarLoop]: 5298 mSDtfsCounter, 3294 mSDsluCounter, 29698 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 892 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1053.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3294 SdHoareTripleChecker+Valid, 34996 SdHoareTripleChecker+Invalid, 928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 43.23ms SdHoareTripleChecker+Time, 892 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1253.74ms IncrementalHoareTripleChecker+Time [2021-11-13 01:48:42,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3294 Valid, 34996 Invalid, 928 Unknown, 0 Unchecked, 43.23ms Time], IncrementalHoareTripleChecker [892 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 1253.74ms Time] [2021-11-13 01:48:42,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53708 states. [2021-11-13 01:48:45,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53708 to 47582. [2021-11-13 01:48:45,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47582 states, 33418 states have (on average 1.256777784427554) internal successors, (41999), 33841 states have internal predecessors, (41999), 11139 states have call successors, (11139), 3018 states have call predecessors, (11139), 3023 states have return successors, (11167), 10989 states have call predecessors, (11167), 11139 states have call successors, (11167) [2021-11-13 01:48:45,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47582 states to 47582 states and 64305 transitions. [2021-11-13 01:48:45,422 INFO L78 Accepts]: Start accepts. Automaton has 47582 states and 64305 transitions. Word has length 595 [2021-11-13 01:48:45,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:48:45,423 INFO L470 AbstractCegarLoop]: Abstraction has 47582 states and 64305 transitions. [2021-11-13 01:48:45,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.75) internal successors, (189), 10 states have internal predecessors, (189), 2 states have call successors, (61), 2 states have call predecessors, (61), 4 states have return successors, (58), 4 states have call predecessors, (58), 2 states have call successors, (58) [2021-11-13 01:48:45,424 INFO L276 IsEmpty]: Start isEmpty. Operand 47582 states and 64305 transitions. [2021-11-13 01:48:45,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 612 [2021-11-13 01:48:45,434 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:48:45,434 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 26, 26, 26, 26, 26, 25, 15, 15, 15, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:48:45,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-13 01:48:45,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:48:45,635 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:48:45,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:48:45,636 INFO L85 PathProgramCache]: Analyzing trace with hash -2007246315, now seen corresponding path program 1 times [2021-11-13 01:48:45,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:48:45,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1881345504] [2021-11-13 01:48:45,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:48:45,641 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:48:45,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:48:45,641 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:48:45,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-13 01:48:51,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:48:51,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 3463 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 01:48:51,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:48:52,497 INFO L134 CoverageAnalysis]: Checked inductivity of 4040 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4040 trivial. 0 not checked. [2021-11-13 01:48:52,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:48:53,609 INFO L134 CoverageAnalysis]: Checked inductivity of 4040 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4040 trivial. 0 not checked. [2021-11-13 01:48:53,609 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:48:53,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1881345504] [2021-11-13 01:48:53,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1881345504] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:48:53,610 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:48:53,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-13 01:48:53,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677709126] [2021-11-13 01:48:53,611 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:48:53,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 01:48:53,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:48:53,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 01:48:53,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:48:53,613 INFO L87 Difference]: Start difference. First operand 47582 states and 64305 transitions. Second operand has 6 states, 5 states have (on average 36.4) internal successors, (182), 4 states have internal predecessors, (182), 3 states have call successors, (63), 4 states have call predecessors, (63), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2021-11-13 01:48:56,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:48:56,551 INFO L93 Difference]: Finished difference Result 95223 states and 128879 transitions. [2021-11-13 01:48:56,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:48:56,551 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 36.4) internal successors, (182), 4 states have internal predecessors, (182), 3 states have call successors, (63), 4 states have call predecessors, (63), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 611 [2021-11-13 01:48:56,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:48:56,755 INFO L225 Difference]: With dead ends: 95223 [2021-11-13 01:48:56,755 INFO L226 Difference]: Without dead ends: 47694 [2021-11-13 01:48:56,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1222 GetRequests, 1216 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:48:56,921 INFO L933 BasicCegarLoop]: 4041 mSDtfsCounter, 12 mSDsluCounter, 16153 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 101.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 20194 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.28ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 164.10ms IncrementalHoareTripleChecker+Time [2021-11-13 01:48:56,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 20194 Invalid, 35 Unknown, 0 Unchecked, 20.28ms Time], IncrementalHoareTripleChecker [6 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 164.10ms Time] [2021-11-13 01:48:57,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47694 states. [2021-11-13 01:48:59,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47694 to 47694. [2021-11-13 01:48:59,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47694 states, 33494 states have (on average 1.2561951394279574) internal successors, (42075), 33917 states have internal predecessors, (42075), 11151 states have call successors, (11151), 3042 states have call predecessors, (11151), 3047 states have return successors, (11179), 11001 states have call predecessors, (11179), 11151 states have call successors, (11179) [2021-11-13 01:49:00,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47694 states to 47694 states and 64405 transitions. [2021-11-13 01:49:00,087 INFO L78 Accepts]: Start accepts. Automaton has 47694 states and 64405 transitions. Word has length 611 [2021-11-13 01:49:00,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:49:00,088 INFO L470 AbstractCegarLoop]: Abstraction has 47694 states and 64405 transitions. [2021-11-13 01:49:00,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 36.4) internal successors, (182), 4 states have internal predecessors, (182), 3 states have call successors, (63), 4 states have call predecessors, (63), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2021-11-13 01:49:00,088 INFO L276 IsEmpty]: Start isEmpty. Operand 47694 states and 64405 transitions. [2021-11-13 01:49:00,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 677 [2021-11-13 01:49:00,098 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:49:00,099 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 26, 26, 26, 26, 26, 25, 15, 15, 15, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:49:00,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-13 01:49:00,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:49:00,313 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:49:00,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:49:00,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1752021830, now seen corresponding path program 1 times [2021-11-13 01:49:00,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:49:00,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2120123443] [2021-11-13 01:49:00,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:49:00,317 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:49:00,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:49:00,319 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:49:00,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1302ab4-eb6f-4f07-aadb-58e187de76de/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process