./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 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/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_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs --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-0f8a17c [2021-11-19 13:43:35,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:43:35,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:43:35,913 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:43:35,914 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:43:35,919 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:43:35,921 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:43:35,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:43:35,928 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:43:35,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:43:35,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:43:35,939 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:43:35,940 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:43:35,943 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:43:35,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:43:35,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:43:35,953 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:43:35,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:43:35,958 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:43:35,969 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:43:35,971 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:43:35,973 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:43:35,976 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:43:35,978 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:43:35,982 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:43:35,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:43:35,983 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:43:35,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:43:35,986 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:43:35,988 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:43:35,988 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:43:35,989 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:43:35,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:43:35,993 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:43:35,995 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:43:35,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:43:35,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:43:35,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:43:35,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:43:35,998 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:43:35,999 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:43:36,000 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 13:43:36,049 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:43:36,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:43:36,052 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:43:36,052 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:43:36,052 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:43:36,053 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:43:36,053 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:43:36,053 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:43:36,053 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:43:36,054 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:43:36,055 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:43:36,055 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:43:36,055 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:43:36,056 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:43:36,056 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:43:36,056 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:43:36,057 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:43:36,057 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:43:36,058 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:43:36,058 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:43:36,058 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:43:36,058 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:43:36,059 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:43:36,059 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:43:36,059 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:43:36,059 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:43:36,060 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:43:36,060 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:43:36,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:43:36,062 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:43:36,062 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:43:36,063 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:43:36,063 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:43:36,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:43:36,063 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:43:36,064 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:43:36,064 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:43:36,064 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_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4295d1eb99eb4c4e306792d8730363a971cf6332e7c089b8c1be6cbddd5edcb9 [2021-11-19 13:43:36,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:43:36,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:43:36,441 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:43:36,443 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:43:36,444 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:43:36,445 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-19 13:43:36,534 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/data/eada122c3/867c850f286147cb99ab2d77b17bd221/FLAG36e347ffd [2021-11-19 13:43:37,645 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:43:37,646 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-19 13:43:37,696 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/data/eada122c3/867c850f286147cb99ab2d77b17bd221/FLAG36e347ffd [2021-11-19 13:43:37,893 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/data/eada122c3/867c850f286147cb99ab2d77b17bd221 [2021-11-19 13:43:37,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:43:37,900 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:43:37,903 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:43:37,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:43:37,907 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:43:37,908 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:43:37" (1/1) ... [2021-11-19 13:43:37,910 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2eb9dba0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:43:37, skipping insertion in model container [2021-11-19 13:43:37,911 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:43:37" (1/1) ... [2021-11-19 13:43:37,919 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:43:38,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:43:41,325 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:43:41,391 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:43:41,392 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:43:41,499 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:43:41,594 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:43:43,252 WARN L230 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_436c795c-87bf-411d-8285-edb79f172d62/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] [2021-11-19 13:43:43,257 WARN L230 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_436c795c-87bf-411d-8285-edb79f172d62/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] [2021-11-19 13:43:43,298 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:43:43,381 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) [2021-11-19 13:43:43,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7ddc7158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:43:43, skipping insertion in model container [2021-11-19 13:43:43,382 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:43:43,382 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 13:43:43,384 INFO L158 Benchmark]: Toolchain (without parser) took 5483.21ms. Allocated memory was 111.1MB in the beginning and 157.3MB in the end (delta: 46.1MB). Free memory was 76.2MB in the beginning and 60.6MB in the end (delta: 15.5MB). Peak memory consumption was 65.3MB. Max. memory is 16.1GB. [2021-11-19 13:43:43,385 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 90.2MB. Free memory is still 69.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:43:43,386 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5479.33ms. Allocated memory was 111.1MB in the beginning and 157.3MB in the end (delta: 46.1MB). Free memory was 76.2MB in the beginning and 60.6MB in the end (delta: 15.5MB). Peak memory consumption was 65.3MB. Max. memory is 16.1GB. [2021-11-19 13:43:43,388 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 90.2MB. Free memory is still 69.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5479.33ms. Allocated memory was 111.1MB in the beginning and 157.3MB in the end (delta: 46.1MB). Free memory was 76.2MB in the beginning and 60.6MB in the end (delta: 15.5MB). Peak memory consumption was 65.3MB. 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_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/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_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs --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-0f8a17c [2021-11-19 13:43:45,902 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:43:45,906 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:43:45,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:43:45,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:43:45,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:43:45,955 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:43:45,958 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:43:45,960 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:43:45,962 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:43:45,963 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:43:45,965 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:43:45,966 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:43:45,967 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:43:45,969 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:43:45,970 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:43:45,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:43:45,973 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:43:45,975 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:43:45,979 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:43:45,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:43:45,983 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:43:45,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:43:45,986 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:43:45,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:43:45,990 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:43:45,991 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:43:45,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:43:45,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:43:45,994 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:43:45,994 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:43:45,995 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:43:45,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:43:45,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:43:45,999 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:43:45,999 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:43:46,000 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:43:46,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:43:46,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:43:46,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:43:46,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:43:46,004 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 13:43:46,030 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:43:46,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:43:46,032 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:43:46,032 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:43:46,032 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:43:46,032 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:43:46,033 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:43:46,033 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:43:46,033 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:43:46,033 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:43:46,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:43:46,034 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:43:46,035 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:43:46,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:43:46,035 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:43:46,035 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:43:46,036 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 13:43:46,036 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 13:43:46,036 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:43:46,036 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:43:46,036 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:43:46,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:43:46,037 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 13:43:46,037 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:43:46,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:43:46,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:43:46,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:43:46,038 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:43:46,038 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 13:43:46,039 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 13:43:46,039 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:43:46,039 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:43:46,039 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:43:46,040 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_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4295d1eb99eb4c4e306792d8730363a971cf6332e7c089b8c1be6cbddd5edcb9 [2021-11-19 13:43:46,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:43:46,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:43:46,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:43:46,472 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:43:46,473 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:43:46,475 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-19 13:43:46,574 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/data/d15326dfc/c4afddbf380341e9960f30209b76479e/FLAGc1cc77c0f [2021-11-19 13:43:47,821 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:43:47,822 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-19 13:43:47,926 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/data/d15326dfc/c4afddbf380341e9960f30209b76479e/FLAGc1cc77c0f [2021-11-19 13:43:48,057 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/data/d15326dfc/c4afddbf380341e9960f30209b76479e [2021-11-19 13:43:48,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:43:48,063 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:43:48,065 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:43:48,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:43:48,069 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:43:48,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:43:48" (1/1) ... [2021-11-19 13:43:48,071 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10a0793f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:43:48, skipping insertion in model container [2021-11-19 13:43:48,071 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:43:48" (1/1) ... [2021-11-19 13:43:48,087 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:43:48,344 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:43:54,073 WARN L230 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_436c795c-87bf-411d-8285-edb79f172d62/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] [2021-11-19 13:43:54,076 WARN L230 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_436c795c-87bf-411d-8285-edb79f172d62/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] [2021-11-19 13:43:54,130 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:43:54,225 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 13:43:54,399 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:43:55,000 WARN L230 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_436c795c-87bf-411d-8285-edb79f172d62/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] [2021-11-19 13:43:55,001 WARN L230 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_436c795c-87bf-411d-8285-edb79f172d62/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] [2021-11-19 13:43:55,010 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:43:55,064 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:43:55,814 WARN L230 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_436c795c-87bf-411d-8285-edb79f172d62/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] [2021-11-19 13:43:55,815 WARN L230 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_436c795c-87bf-411d-8285-edb79f172d62/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] [2021-11-19 13:43:55,823 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:43:56,341 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:43:56,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:43:56 WrapperNode [2021-11-19 13:43:56,342 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:43:56,343 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:43:56,344 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:43:56,344 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:43:56,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:43:56" (1/1) ... [2021-11-19 13:43:56,502 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:43:56" (1/1) ... [2021-11-19 13:43:56,830 INFO L137 Inliner]: procedures = 653, calls = 3619, calls flagged for inlining = 316, calls inlined = 281, statements flattened = 7965 [2021-11-19 13:43:56,832 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:43:56,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:43:56,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:43:56,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:43:56,844 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:43:56" (1/1) ... [2021-11-19 13:43:56,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:43:56" (1/1) ... [2021-11-19 13:43:56,923 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:43:56" (1/1) ... [2021-11-19 13:43:56,925 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:43:56" (1/1) ... [2021-11-19 13:43:57,255 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:43:56" (1/1) ... [2021-11-19 13:43:57,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:43:56" (1/1) ... [2021-11-19 13:43:57,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:43:56" (1/1) ... [2021-11-19 13:43:57,417 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:43:57,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:43:57,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:43:57,419 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:43:57,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:43:56" (1/1) ... [2021-11-19 13:43:57,427 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:43:57,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:43:57,458 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:43:57,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:43:57,515 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2021-11-19 13:43:57,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2021-11-19 13:43:57,516 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-19 13:43:57,516 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-19 13:43:57,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 13:43:57,516 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 13:43:57,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_6 [2021-11-19 13:43:57,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_6 [2021-11-19 13:43:57,517 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-19 13:43:57,517 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-19 13:43:57,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 13:43:57,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 13:43:57,517 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-11-19 13:43:57,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-11-19 13:43:57,518 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_function_pointers_vf [2021-11-19 13:43:57,518 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_function_pointers_vf [2021-11-19 13:43:57,518 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-11-19 13:43:57,518 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-11-19 13:43:57,518 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-19 13:43:57,518 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-19 13:43:57,519 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-19 13:43:57,519 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-19 13:43:57,519 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-19 13:43:57,519 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-19 13:43:57,519 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_alloc_rx_buffers [2021-11-19 13:43:57,519 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_alloc_rx_buffers [2021-11-19 13:43:57,519 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-19 13:43:57,520 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-19 13:43:57,520 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_mac_addr_vf [2021-11-19 13:43:57,520 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_mac_addr_vf [2021-11-19 13:43:57,520 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_close [2021-11-19 13:43:57,521 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_close [2021-11-19 13:43:57,521 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-19 13:43:57,521 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-19 13:43:57,521 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw_vf [2021-11-19 13:43:57,521 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw_vf [2021-11-19 13:43:57,521 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_maybe_stop_tx [2021-11-19 13:43:57,522 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_maybe_stop_tx [2021-11-19 13:43:57,522 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-19 13:43:57,522 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-19 13:43:57,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 13:43:57,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 13:43:57,522 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-19 13:43:57,523 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-19 13:43:57,523 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-19 13:43:57,523 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-19 13:43:57,524 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_clean_tx_irq [2021-11-19 13:43:57,524 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_clean_tx_irq [2021-11-19 13:43:57,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 13:43:57,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 13:43:57,526 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-19 13:43:57,526 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-19 13:43:57,526 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_suspend [2021-11-19 13:43:57,526 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_suspend [2021-11-19 13:43:57,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:43:57,526 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-19 13:43:57,527 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-19 13:43:57,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 13:43:57,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 13:43:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 13:43:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-19 13:43:57,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-19 13:43:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-19 13:43:57,529 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-19 13:43:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-19 13:43:57,530 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-19 13:43:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 13:43:57,530 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 13:43:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_assign_vector [2021-11-19 13:43:57,530 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_assign_vector [2021-11-19 13:43:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 13:43:57,531 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 13:43:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-19 13:43:57,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-19 13:43:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_desc_unused [2021-11-19 13:43:57,531 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_desc_unused [2021-11-19 13:43:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 13:43:57,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 13:43:57,532 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-19 13:43:57,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-19 13:43:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_netpoll [2021-11-19 13:43:57,533 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_netpoll [2021-11-19 13:43:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-19 13:43:57,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-19 13:43:57,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-19 13:43:57,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-19 13:43:57,535 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_reset_interrupt_capability [2021-11-19 13:43:57,535 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_reset_interrupt_capability [2021-11-19 13:43:57,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 13:43:57,535 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 13:43:57,536 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_msg_vf [2021-11-19 13:43:57,536 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_msg_vf [2021-11-19 13:43:57,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-19 13:43:57,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-19 13:43:57,536 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-19 13:43:57,536 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-19 13:43:57,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_igbvf_exit_module_19_2 [2021-11-19 13:43:57,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_igbvf_exit_module_19_2 [2021-11-19 13:43:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 13:43:57,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 13:43:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_free_tx_resources [2021-11-19 13:43:57,537 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_free_tx_resources [2021-11-19 13:43:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2021-11-19 13:43:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2021-11-19 13:43:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 13:43:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 13:43:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-19 13:43:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-19 13:43:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-19 13:43:57,540 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-19 13:43:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-19 13:43:57,543 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-19 13:43:57,545 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2021-11-19 13:43:57,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2021-11-19 13:43:57,546 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-11-19 13:43:57,547 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-11-19 13:43:57,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 13:43:57,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-19 13:43:57,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-19 13:43:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 13:43:57,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 13:43:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-19 13:43:57,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2021-11-19 13:43:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-19 13:43:57,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-19 13:43:57,554 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-19 13:43:57,554 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-19 13:43:57,554 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_configure_msix [2021-11-19 13:43:57,554 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_configure_msix [2021-11-19 13:43:57,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:43:57,554 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_open [2021-11-19 13:43:57,554 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_open [2021-11-19 13:43:57,554 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-19 13:43:57,555 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-19 13:43:57,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 13:43:57,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 13:43:57,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 13:43:57,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 13:43:57,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 13:43:57,555 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 13:43:57,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 13:43:57,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 13:43:57,556 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-19 13:43:57,556 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-19 13:43:57,556 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_nway_reset [2021-11-19 13:43:57,556 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_nway_reset [2021-11-19 13:43:57,556 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_reset [2021-11-19 13:43:57,556 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_reset [2021-11-19 13:43:57,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-19 13:43:57,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-19 13:43:57,557 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~$Pointer$~TO~C_INT [2021-11-19 13:43:57,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~$Pointer$~TO~C_INT [2021-11-19 13:43:57,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-19 13:43:57,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-19 13:43:57,557 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_posted_mbx [2021-11-19 13:43:57,557 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_posted_mbx [2021-11-19 13:43:57,558 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-19 13:43:57,558 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-19 13:43:57,558 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-19 13:43:57,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-19 13:43:57,558 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_irq_enable [2021-11-19 13:43:57,558 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_irq_enable [2021-11-19 13:43:57,558 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-19 13:43:57,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-19 13:43:57,559 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-19 13:43:57,559 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-19 13:43:57,559 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_reinit_locked [2021-11-19 13:43:57,559 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_reinit_locked [2021-11-19 13:43:57,559 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 13:43:57,559 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 13:43:57,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-19 13:43:57,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-19 13:43:57,560 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_update_stats [2021-11-19 13:43:57,560 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_update_stats [2021-11-19 13:43:57,560 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_vlan_rx_add_vid [2021-11-19 13:43:57,560 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_vlan_rx_add_vid [2021-11-19 13:43:57,560 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-19 13:43:57,560 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-19 13:43:57,560 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-19 13:43:57,561 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-19 13:43:57,561 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_bit_vf [2021-11-19 13:43:57,561 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_bit_vf [2021-11-19 13:43:57,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 13:43:57,561 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_hw_vf [2021-11-19 13:43:57,561 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_hw_vf [2021-11-19 13:43:57,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:43:57,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:43:57,562 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-19 13:43:57,562 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-19 13:43:57,562 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_ack [2021-11-19 13:43:57,562 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_ack [2021-11-19 13:43:57,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 13:43:57,562 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-19 13:43:57,562 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-19 13:43:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 13:43:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 13:43:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 13:43:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 13:43:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 13:43:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 13:43:57,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 13:43:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set_vf [2021-11-19 13:43:57,564 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set_vf [2021-11-19 13:43:57,565 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-19 13:43:57,565 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-19 13:43:57,565 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-19 13:43:57,565 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-19 13:43:57,565 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-19 13:43:57,565 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-19 13:43:57,566 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_down [2021-11-19 13:43:57,566 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_down [2021-11-19 13:43:57,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-19 13:43:57,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-19 13:43:57,566 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_get_regs_len [2021-11-19 13:43:57,566 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_get_regs_len [2021-11-19 13:43:57,566 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_free_irq [2021-11-19 13:43:57,566 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_free_irq [2021-11-19 13:43:57,567 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-19 13:43:57,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-19 13:43:57,567 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-19 13:43:57,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-19 13:43:57,567 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link_vf [2021-11-19 13:43:57,567 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link_vf [2021-11-19 13:43:57,567 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-19 13:43:57,567 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-19 13:43:57,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 13:43:57,568 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 13:43:57,568 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-19 13:43:57,568 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-19 13:43:57,568 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-19 13:43:57,568 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-19 13:43:57,568 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_clean_tx_ring [2021-11-19 13:43:57,568 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_clean_tx_ring [2021-11-19 13:43:57,569 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_v2p_mailbox [2021-11-19 13:43:57,569 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_v2p_mailbox [2021-11-19 13:43:57,569 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-19 13:43:57,570 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-19 13:43:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-19 13:43:57,574 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-19 13:43:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-19 13:43:57,575 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-19 13:43:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:43:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-19 13:43:57,575 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-19 13:43:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_remove [2021-11-19 13:43:57,575 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_remove [2021-11-19 13:43:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-19 13:43:57,579 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-19 13:43:57,579 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-19 13:43:57,579 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-19 13:43:57,579 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_irq_disable [2021-11-19 13:43:57,579 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_irq_disable [2021-11-19 13:43:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 13:43:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_configure [2021-11-19 13:43:57,580 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_configure [2021-11-19 13:43:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_setup_rx_resources [2021-11-19 13:43:57,580 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_setup_rx_resources [2021-11-19 13:43:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_clean_rx_ring [2021-11-19 13:43:57,580 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_clean_rx_ring [2021-11-19 13:43:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~s32~0 [2021-11-19 13:43:57,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~s32~0 [2021-11-19 13:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 13:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_obtain_mbx_lock_vf [2021-11-19 13:43:57,581 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_obtain_mbx_lock_vf [2021-11-19 13:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 13:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2021-11-19 13:43:57,581 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2021-11-19 13:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 13:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 13:43:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 13:43:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_ack_vf [2021-11-19 13:43:57,582 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_ack_vf [2021-11-19 13:43:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-19 13:43:57,582 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-19 13:43:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-19 13:43:57,582 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-19 13:43:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 13:43:57,582 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 13:43:57,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-19 13:43:57,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-19 13:43:57,583 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_request_irq [2021-11-19 13:43:57,583 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_request_irq [2021-11-19 13:43:57,583 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_resume [2021-11-19 13:43:57,583 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_resume [2021-11-19 13:43:57,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 13:43:57,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 13:43:57,583 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-19 13:43:57,584 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-19 13:43:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-19 13:43:57,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-19 13:43:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_put_txbuf [2021-11-19 13:43:57,584 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_put_txbuf [2021-11-19 13:43:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2021-11-19 13:43:57,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2021-11-19 13:43:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_msg [2021-11-19 13:43:57,585 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_msg [2021-11-19 13:43:57,585 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-19 13:43:57,585 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-19 13:43:57,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2021-11-19 13:43:57,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2021-11-19 13:43:57,585 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-19 13:43:57,585 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-19 13:43:57,585 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-19 13:43:57,585 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-19 13:43:57,586 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_shutdown [2021-11-19 13:43:57,586 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_shutdown [2021-11-19 13:43:57,586 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-19 13:43:57,586 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-19 13:43:57,586 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-19 13:43:57,586 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-19 13:43:57,586 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_setup_tx_resources [2021-11-19 13:43:57,586 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_setup_tx_resources [2021-11-19 13:43:57,587 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 13:43:57,587 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 13:43:57,587 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_get_eeprom_len [2021-11-19 13:43:57,587 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_get_eeprom_len [2021-11-19 13:43:57,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 13:43:57,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 13:43:57,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 13:43:57,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 13:43:57,587 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~X~~bool~0~TO~~s32~0 [2021-11-19 13:43:57,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~X~~bool~0~TO~~s32~0 [2021-11-19 13:43:57,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 13:43:57,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 13:43:57,588 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2021-11-19 13:43:57,588 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2021-11-19 13:43:57,588 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-19 13:43:57,588 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-19 13:43:57,588 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-19 13:43:57,589 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-19 13:43:57,589 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-11-19 13:43:57,590 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-11-19 13:43:57,590 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_io_resume [2021-11-19 13:43:57,590 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_io_resume [2021-11-19 13:43:57,590 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_free_rx_resources [2021-11-19 13:43:57,590 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_free_rx_resources [2021-11-19 13:43:57,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_2_6 [2021-11-19 13:43:57,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_2_6 [2021-11-19 13:43:57,590 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_set_multi [2021-11-19 13:43:57,591 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_set_multi [2021-11-19 13:43:57,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 13:43:57,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 13:43:57,591 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_tx_timeout [2021-11-19 13:43:57,591 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_tx_timeout [2021-11-19 13:43:57,591 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-19 13:43:57,591 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-19 13:43:57,591 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_posted_mbx [2021-11-19 13:43:57,592 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_posted_mbx [2021-11-19 13:43:57,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2021-11-19 13:43:57,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2021-11-19 13:43:57,592 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-19 13:43:57,592 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-19 13:43:57,592 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_up [2021-11-19 13:43:57,592 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_up [2021-11-19 13:43:57,592 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-19 13:43:57,592 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-19 13:43:57,593 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2021-11-19 13:43:57,593 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2021-11-19 13:43:57,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 13:43:57,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 13:43:57,593 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-19 13:43:59,001 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:43:59,009 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:43:59,192 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 13:45:20,110 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 13:45:20,202 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:45:20,250 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:45:20,250 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 13:45:20,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:45:20 BoogieIcfgContainer [2021-11-19 13:45:20,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:45:20,267 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:45:20,269 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:45:20,272 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:45:20,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:43:48" (1/3) ... [2021-11-19 13:45:20,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3954ad60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:45:20, skipping insertion in model container [2021-11-19 13:45:20,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:43:56" (2/3) ... [2021-11-19 13:45:20,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3954ad60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:45:20, skipping insertion in model container [2021-11-19 13:45:20,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:45:20" (3/3) ... [2021-11-19 13:45:20,278 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-19 13:45:20,284 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:45:20,285 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-19 13:45:20,359 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:45:20,366 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 [2021-11-19 13:45:20,367 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-19 13:45:20,459 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) [2021-11-19 13:45:20,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2021-11-19 13:45:20,599 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:45:20,601 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] [2021-11-19 13:45:20,601 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:45:20,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:45:20,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1295442260, now seen corresponding path program 1 times [2021-11-19 13:45:20,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:45:20,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1763633859] [2021-11-19 13:45:20,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:45:20,638 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:45:20,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:45:20,642 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:45:20,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 13:45:23,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:45:23,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 2441 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:45:23,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:45:24,645 INFO L134 CoverageAnalysis]: Checked inductivity of 2556 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 2484 trivial. 0 not checked. [2021-11-19 13:45:24,646 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:45:25,549 INFO L134 CoverageAnalysis]: Checked inductivity of 2556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2556 trivial. 0 not checked. [2021-11-19 13:45:25,550 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:45:25,551 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1763633859] [2021-11-19 13:45:25,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1763633859] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:45:25,552 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:45:25,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:45:25,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313324775] [2021-11-19 13:45:25,555 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:45:25,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:45:25,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:45:25,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:45:25,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:45:25,624 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) [2021-11-19 13:45:40,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:45:40,302 INFO L93 Difference]: Finished difference Result 10353 states and 14458 transitions. [2021-11-19 13:45:40,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:45:40,305 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 [2021-11-19 13:45:40,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:45:40,400 INFO L225 Difference]: With dead ends: 10353 [2021-11-19 13:45:40,400 INFO L226 Difference]: Without dead ends: 7303 [2021-11-19 13:45:40,427 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 [2021-11-19 13:45:40,431 INFO L933 BasicCegarLoop]: 5560 mSDtfsCounter, 8749 mSDsluCounter, 5644 mSDsCounter, 0 mSdLazyCounter, 1637 mSolverCounterSat, 1050 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8749 SdHoareTripleChecker+Valid, 11204 SdHoareTripleChecker+Invalid, 2687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1050 IncrementalHoareTripleChecker+Valid, 1637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2021-11-19 13:45:40,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8749 Valid, 11204 Invalid, 2687 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1050 Valid, 1637 Invalid, 0 Unknown, 0 Unchecked, 13.8s Time] [2021-11-19 13:45:40,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7303 states. [2021-11-19 13:45:41,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7303 to 7293. [2021-11-19 13:45:41,164 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) [2021-11-19 13:45:41,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7293 states to 7293 states and 9967 transitions. [2021-11-19 13:45:41,250 INFO L78 Accepts]: Start accepts. Automaton has 7293 states and 9967 transitions. Word has length 316 [2021-11-19 13:45:41,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:45:41,256 INFO L470 AbstractCegarLoop]: Abstraction has 7293 states and 9967 transitions. [2021-11-19 13:45:41,260 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) [2021-11-19 13:45:41,260 INFO L276 IsEmpty]: Start isEmpty. Operand 7293 states and 9967 transitions. [2021-11-19 13:45:41,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2021-11-19 13:45:41,281 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:45:41,282 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] [2021-11-19 13:45:41,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 13:45:41,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:45:41,496 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:45:41,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:45:41,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1361823584, now seen corresponding path program 1 times [2021-11-19 13:45:41,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:45:41,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1414048241] [2021-11-19 13:45:41,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:45:41,503 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:45:41,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:45:41,504 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:45:41,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 13:45:44,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:45:44,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 2378 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:45:44,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:45:45,138 INFO L134 CoverageAnalysis]: Checked inductivity of 2556 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 2484 trivial. 0 not checked. [2021-11-19 13:45:45,139 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:45:46,041 INFO L134 CoverageAnalysis]: Checked inductivity of 2556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2556 trivial. 0 not checked. [2021-11-19 13:45:46,041 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:45:46,042 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1414048241] [2021-11-19 13:45:46,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1414048241] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:45:46,042 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:45:46,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 13:45:46,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657508733] [2021-11-19 13:45:46,043 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:45:46,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:45:46,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:45:46,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:45:46,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:45:46,048 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) [2021-11-19 13:45:48,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:45:48,034 INFO L93 Difference]: Finished difference Result 18675 states and 25410 transitions. [2021-11-19 13:45:48,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:45:48,035 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 [2021-11-19 13:45:48,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:45:48,145 INFO L225 Difference]: With dead ends: 18675 [2021-11-19 13:45:48,145 INFO L226 Difference]: Without dead ends: 11435 [2021-11-19 13:45:48,185 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 [2021-11-19 13:45:48,187 INFO L933 BasicCegarLoop]: 4622 mSDtfsCounter, 2962 mSDsluCounter, 3888 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2962 SdHoareTripleChecker+Valid, 8510 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:45:48,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2962 Valid, 8510 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-19 13:45:48,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11435 states. [2021-11-19 13:45:48,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11435 to 11429. [2021-11-19 13:45:48,807 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) [2021-11-19 13:45:48,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11429 states to 11429 states and 15501 transitions. [2021-11-19 13:45:48,878 INFO L78 Accepts]: Start accepts. Automaton has 11429 states and 15501 transitions. Word has length 327 [2021-11-19 13:45:48,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:45:48,880 INFO L470 AbstractCegarLoop]: Abstraction has 11429 states and 15501 transitions. [2021-11-19 13:45:48,881 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) [2021-11-19 13:45:48,882 INFO L276 IsEmpty]: Start isEmpty. Operand 11429 states and 15501 transitions. [2021-11-19 13:45:48,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2021-11-19 13:45:48,903 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:45:48,904 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] [2021-11-19 13:45:48,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 13:45:49,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:45:49,129 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:45:49,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:45:49,129 INFO L85 PathProgramCache]: Analyzing trace with hash 606144093, now seen corresponding path program 1 times [2021-11-19 13:45:49,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:45:49,133 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1058933397] [2021-11-19 13:45:49,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:45:49,133 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:45:49,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:45:49,134 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:45:49,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 13:45:52,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:45:52,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 2623 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:45:52,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:45:53,378 INFO L134 CoverageAnalysis]: Checked inductivity of 3004 backedges. 355 proven. 0 refuted. 0 times theorem prover too weak. 2649 trivial. 0 not checked. [2021-11-19 13:45:53,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:45:54,495 INFO L134 CoverageAnalysis]: Checked inductivity of 3004 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 2985 trivial. 0 not checked. [2021-11-19 13:45:54,495 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:45:54,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1058933397] [2021-11-19 13:45:54,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1058933397] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:45:54,495 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:45:54,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:45:54,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649145791] [2021-11-19 13:45:54,496 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:45:54,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:45:54,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:45:54,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:45:54,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:45:54,498 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) [2021-11-19 13:46:05,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:46:05,224 INFO L93 Difference]: Finished difference Result 30330 states and 41127 transitions. [2021-11-19 13:46:05,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:46:05,225 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 [2021-11-19 13:46:05,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:46:05,396 INFO L225 Difference]: With dead ends: 30330 [2021-11-19 13:46:05,397 INFO L226 Difference]: Without dead ends: 18954 [2021-11-19 13:46:05,464 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 [2021-11-19 13:46:05,466 INFO L933 BasicCegarLoop]: 7304 mSDtfsCounter, 6790 mSDsluCounter, 5801 mSDsCounter, 0 mSdLazyCounter, 1613 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6790 SdHoareTripleChecker+Valid, 13105 SdHoareTripleChecker+Invalid, 1651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:46:05,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6790 Valid, 13105 Invalid, 1651 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [38 Valid, 1613 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2021-11-19 13:46:05,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18954 states. [2021-11-19 13:46:06,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18954 to 18942. [2021-11-19 13:46:06,546 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) [2021-11-19 13:46:06,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18942 states to 18942 states and 25663 transitions. [2021-11-19 13:46:06,633 INFO L78 Accepts]: Start accepts. Automaton has 18942 states and 25663 transitions. Word has length 409 [2021-11-19 13:46:06,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:46:06,638 INFO L470 AbstractCegarLoop]: Abstraction has 18942 states and 25663 transitions. [2021-11-19 13:46:06,638 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) [2021-11-19 13:46:06,638 INFO L276 IsEmpty]: Start isEmpty. Operand 18942 states and 25663 transitions. [2021-11-19 13:46:06,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2021-11-19 13:46:06,661 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:46:06,662 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] [2021-11-19 13:46:06,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 13:46:06,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:46:06,877 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:46:06,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:46:06,877 INFO L85 PathProgramCache]: Analyzing trace with hash -132172361, now seen corresponding path program 1 times [2021-11-19 13:46:06,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:46:06,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1455984213] [2021-11-19 13:46:06,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:46:06,883 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:46:06,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:46:06,884 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:46:06,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 13:46:09,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:46:09,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 2775 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:46:09,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:46:10,960 INFO L134 CoverageAnalysis]: Checked inductivity of 3149 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 3003 trivial. 0 not checked. [2021-11-19 13:46:10,961 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:46:12,014 INFO L134 CoverageAnalysis]: Checked inductivity of 3149 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 3122 trivial. 0 not checked. [2021-11-19 13:46:12,014 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:46:12,015 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1455984213] [2021-11-19 13:46:12,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1455984213] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:46:12,015 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:46:12,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 13:46:12,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503504979] [2021-11-19 13:46:12,015 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:46:12,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:46:12,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:46:12,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:46:12,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:46:12,017 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) [2021-11-19 13:46:13,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:46:13,603 INFO L93 Difference]: Finished difference Result 40338 states and 54647 transitions. [2021-11-19 13:46:13,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:46:13,604 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 [2021-11-19 13:46:13,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:46:13,733 INFO L225 Difference]: With dead ends: 40338 [2021-11-19 13:46:13,733 INFO L226 Difference]: Without dead ends: 21449 [2021-11-19 13:46:13,821 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 [2021-11-19 13:46:13,824 INFO L933 BasicCegarLoop]: 6863 mSDtfsCounter, 2814 mSDsluCounter, 3979 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2814 SdHoareTripleChecker+Valid, 10842 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:46:13,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2814 Valid, 10842 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-19 13:46:13,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21449 states. [2021-11-19 13:46:14,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21449 to 21443. [2021-11-19 13:46:14,979 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) [2021-11-19 13:46:15,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21443 states to 21443 states and 29039 transitions. [2021-11-19 13:46:15,084 INFO L78 Accepts]: Start accepts. Automaton has 21443 states and 29039 transitions. Word has length 495 [2021-11-19 13:46:15,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:46:15,086 INFO L470 AbstractCegarLoop]: Abstraction has 21443 states and 29039 transitions. [2021-11-19 13:46:15,086 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) [2021-11-19 13:46:15,086 INFO L276 IsEmpty]: Start isEmpty. Operand 21443 states and 29039 transitions. [2021-11-19 13:46:15,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2021-11-19 13:46:15,114 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:46:15,114 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] [2021-11-19 13:46:15,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 13:46:15,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:46:15,340 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:46:15,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:46:15,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1126866059, now seen corresponding path program 1 times [2021-11-19 13:46:15,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:46:15,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1321864020] [2021-11-19 13:46:15,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:46:15,345 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:46:15,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:46:15,346 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:46:15,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 13:46:18,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:46:18,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 2775 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:46:18,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:46:19,633 INFO L134 CoverageAnalysis]: Checked inductivity of 3149 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 3003 trivial. 0 not checked. [2021-11-19 13:46:19,634 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:46:20,853 INFO L134 CoverageAnalysis]: Checked inductivity of 3149 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 3122 trivial. 0 not checked. [2021-11-19 13:46:20,853 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:46:20,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1321864020] [2021-11-19 13:46:20,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1321864020] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:46:20,854 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:46:20,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 13:46:20,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160314338] [2021-11-19 13:46:20,854 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:46:20,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:46:20,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:46:20,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:46:20,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:46:20,857 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) [2021-11-19 13:46:22,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:46:22,521 INFO L93 Difference]: Finished difference Result 46664 states and 63138 transitions. [2021-11-19 13:46:22,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:46:22,521 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 [2021-11-19 13:46:22,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:46:22,814 INFO L225 Difference]: With dead ends: 46664 [2021-11-19 13:46:22,814 INFO L226 Difference]: Without dead ends: 25274 [2021-11-19 13:46:22,868 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 [2021-11-19 13:46:22,870 INFO L933 BasicCegarLoop]: 7131 mSDtfsCounter, 3689 mSDsluCounter, 3477 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3689 SdHoareTripleChecker+Valid, 10608 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:46:22,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3689 Valid, 10608 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-19 13:46:22,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25274 states. [2021-11-19 13:46:24,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25274 to 25268. [2021-11-19 13:46:24,124 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) [2021-11-19 13:46:24,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25268 states to 25268 states and 34148 transitions. [2021-11-19 13:46:24,286 INFO L78 Accepts]: Start accepts. Automaton has 25268 states and 34148 transitions. Word has length 495 [2021-11-19 13:46:24,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:46:24,288 INFO L470 AbstractCegarLoop]: Abstraction has 25268 states and 34148 transitions. [2021-11-19 13:46:24,288 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) [2021-11-19 13:46:24,289 INFO L276 IsEmpty]: Start isEmpty. Operand 25268 states and 34148 transitions. [2021-11-19 13:46:24,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2021-11-19 13:46:24,322 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:46:24,322 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] [2021-11-19 13:46:24,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-19 13:46:24,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:46:24,537 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:46:24,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:46:24,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1386253054, now seen corresponding path program 1 times [2021-11-19 13:46:24,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:46:24,542 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1464047210] [2021-11-19 13:46:24,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:46:24,543 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:46:24,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:46:24,545 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:46:24,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 13:46:27,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:46:27,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 2907 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:46:27,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:46:28,871 INFO L134 CoverageAnalysis]: Checked inductivity of 3463 backedges. 184 proven. 0 refuted. 0 times theorem prover too weak. 3279 trivial. 0 not checked. [2021-11-19 13:46:28,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:46:30,162 INFO L134 CoverageAnalysis]: Checked inductivity of 3463 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 3412 trivial. 0 not checked. [2021-11-19 13:46:30,163 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:46:30,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1464047210] [2021-11-19 13:46:30,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1464047210] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:46:30,163 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:46:30,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 13:46:30,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481576832] [2021-11-19 13:46:30,164 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:46:30,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:46:30,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:46:30,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:46:30,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:46:30,166 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) [2021-11-19 13:46:31,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:46:31,867 INFO L93 Difference]: Finished difference Result 52989 states and 71619 transitions. [2021-11-19 13:46:31,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:46:31,867 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 [2021-11-19 13:46:31,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:46:32,002 INFO L225 Difference]: With dead ends: 52989 [2021-11-19 13:46:32,002 INFO L226 Difference]: Without dead ends: 27774 [2021-11-19 13:46:32,087 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 [2021-11-19 13:46:32,089 INFO L933 BasicCegarLoop]: 6064 mSDtfsCounter, 2815 mSDsluCounter, 3978 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2815 SdHoareTripleChecker+Valid, 10042 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-19 13:46:32,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2815 Valid, 10042 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-19 13:46:32,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27774 states. [2021-11-19 13:46:33,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27774 to 27768. [2021-11-19 13:46:33,269 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) [2021-11-19 13:46:33,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27768 states to 27768 states and 37524 transitions. [2021-11-19 13:46:33,620 INFO L78 Accepts]: Start accepts. Automaton has 27768 states and 37524 transitions. Word has length 555 [2021-11-19 13:46:33,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:46:33,621 INFO L470 AbstractCegarLoop]: Abstraction has 27768 states and 37524 transitions. [2021-11-19 13:46:33,622 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) [2021-11-19 13:46:33,622 INFO L276 IsEmpty]: Start isEmpty. Operand 27768 states and 37524 transitions. [2021-11-19 13:46:33,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2021-11-19 13:46:33,648 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:46:33,649 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] [2021-11-19 13:46:33,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 13:46:33,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:46:33,865 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:46:33,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:46:33,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1914020544, now seen corresponding path program 1 times [2021-11-19 13:46:33,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:46:33,870 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1584117622] [2021-11-19 13:46:33,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:46:33,870 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:46:33,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:46:33,872 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:46:33,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 13:46:36,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:46:37,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 2907 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:46:37,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:46:38,182 INFO L134 CoverageAnalysis]: Checked inductivity of 3463 backedges. 184 proven. 0 refuted. 0 times theorem prover too weak. 3279 trivial. 0 not checked. [2021-11-19 13:46:38,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:46:39,382 INFO L134 CoverageAnalysis]: Checked inductivity of 3463 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 3412 trivial. 0 not checked. [2021-11-19 13:46:39,382 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:46:39,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1584117622] [2021-11-19 13:46:39,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1584117622] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:46:39,383 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:46:39,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 13:46:39,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836321382] [2021-11-19 13:46:39,384 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:46:39,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:46:39,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:46:39,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:46:39,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:46:39,386 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) [2021-11-19 13:46:41,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:46:41,036 INFO L93 Difference]: Finished difference Result 58021 states and 78413 transitions. [2021-11-19 13:46:41,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:46:41,036 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 [2021-11-19 13:46:41,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:46:41,199 INFO L225 Difference]: With dead ends: 58021 [2021-11-19 13:46:41,199 INFO L226 Difference]: Without dead ends: 30306 [2021-11-19 13:46:41,524 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 [2021-11-19 13:46:41,527 INFO L933 BasicCegarLoop]: 6866 mSDtfsCounter, 2833 mSDsluCounter, 3979 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2833 SdHoareTripleChecker+Valid, 10845 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-19 13:46:41,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2833 Valid, 10845 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-19 13:46:41,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30306 states. [2021-11-19 13:46:42,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30306 to 30300. [2021-11-19 13:46:42,933 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) [2021-11-19 13:46:43,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30300 states to 30300 states and 40940 transitions. [2021-11-19 13:46:43,038 INFO L78 Accepts]: Start accepts. Automaton has 30300 states and 40940 transitions. Word has length 555 [2021-11-19 13:46:43,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:46:43,040 INFO L470 AbstractCegarLoop]: Abstraction has 30300 states and 40940 transitions. [2021-11-19 13:46:43,040 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) [2021-11-19 13:46:43,040 INFO L276 IsEmpty]: Start isEmpty. Operand 30300 states and 40940 transitions. [2021-11-19 13:46:43,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 560 [2021-11-19 13:46:43,060 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:46:43,061 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] [2021-11-19 13:46:43,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 13:46:43,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:46:43,276 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:46:43,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:46:43,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1302199405, now seen corresponding path program 1 times [2021-11-19 13:46:43,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:46:43,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [748659547] [2021-11-19 13:46:43,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:46:43,279 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:46:43,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:46:43,280 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:46:43,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 13:46:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:46:46,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 2909 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-19 13:46:46,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:46:48,486 INFO L134 CoverageAnalysis]: Checked inductivity of 3702 backedges. 514 proven. 0 refuted. 0 times theorem prover too weak. 3188 trivial. 0 not checked. [2021-11-19 13:46:48,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:46:50,755 INFO L134 CoverageAnalysis]: Checked inductivity of 3702 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 3570 trivial. 0 not checked. [2021-11-19 13:46:50,755 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:46:50,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [748659547] [2021-11-19 13:46:50,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [748659547] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:46:50,755 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:46:50,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 16 [2021-11-19 13:46:50,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589382609] [2021-11-19 13:46:50,756 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:46:50,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-19 13:46:50,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:46:50,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-19 13:46:50,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-11-19 13:46:50,757 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) [2021-11-19 13:47:32,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:47:32,325 INFO L93 Difference]: Finished difference Result 89871 states and 123080 transitions. [2021-11-19 13:47:32,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-19 13:47:32,326 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 [2021-11-19 13:47:32,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:47:32,614 INFO L225 Difference]: With dead ends: 89871 [2021-11-19 13:47:32,614 INFO L226 Difference]: Without dead ends: 59594 [2021-11-19 13:47:32,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1132 GetRequests, 1104 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=138, Invalid=732, Unknown=0, NotChecked=0, Total=870 [2021-11-19 13:47:32,944 INFO L933 BasicCegarLoop]: 9443 mSDtfsCounter, 9524 mSDsluCounter, 85900 mSDsCounter, 0 mSdLazyCounter, 8081 mSolverCounterSat, 1379 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9902 SdHoareTripleChecker+Valid, 95343 SdHoareTripleChecker+Invalid, 9460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1379 IncrementalHoareTripleChecker+Valid, 8081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.6s IncrementalHoareTripleChecker+Time [2021-11-19 13:47:32,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9902 Valid, 95343 Invalid, 9460 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1379 Valid, 8081 Invalid, 0 Unknown, 0 Unchecked, 37.6s Time] [2021-11-19 13:47:33,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59594 states. [2021-11-19 13:47:35,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59594 to 47526. [2021-11-19 13:47:35,569 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) [2021-11-19 13:47:35,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47526 states to 47526 states and 64231 transitions. [2021-11-19 13:47:35,746 INFO L78 Accepts]: Start accepts. Automaton has 47526 states and 64231 transitions. Word has length 559 [2021-11-19 13:47:35,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:47:35,747 INFO L470 AbstractCegarLoop]: Abstraction has 47526 states and 64231 transitions. [2021-11-19 13:47:35,748 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) [2021-11-19 13:47:35,748 INFO L276 IsEmpty]: Start isEmpty. Operand 47526 states and 64231 transitions. [2021-11-19 13:47:35,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 572 [2021-11-19 13:47:35,780 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:47:35,781 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] [2021-11-19 13:47:35,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 13:47:36,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:47:36,001 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:47:36,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:47:36,002 INFO L85 PathProgramCache]: Analyzing trace with hash 243547334, now seen corresponding path program 1 times [2021-11-19 13:47:36,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:47:36,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1092125126] [2021-11-19 13:47:36,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:47:36,005 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:47:36,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:47:36,006 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:47:36,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 13:47:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:47:39,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 3103 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 13:47:39,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:47:40,658 INFO L134 CoverageAnalysis]: Checked inductivity of 3803 backedges. 636 proven. 0 refuted. 0 times theorem prover too weak. 3167 trivial. 0 not checked. [2021-11-19 13:47:40,658 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:47:42,172 INFO L134 CoverageAnalysis]: Checked inductivity of 3803 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3803 trivial. 0 not checked. [2021-11-19 13:47:42,173 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:47:42,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1092125126] [2021-11-19 13:47:42,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1092125126] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:47:42,174 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:47:42,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-19 13:47:42,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542601856] [2021-11-19 13:47:42,175 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:47:42,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:47:42,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:47:42,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:47:42,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:47:42,178 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) [2021-11-19 13:47:45,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:47:45,416 INFO L93 Difference]: Finished difference Result 109506 states and 149984 transitions. [2021-11-19 13:47:45,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:47:45,416 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 [2021-11-19 13:47:45,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:47:45,811 INFO L225 Difference]: With dead ends: 109506 [2021-11-19 13:47:45,811 INFO L226 Difference]: Without dead ends: 62033 [2021-11-19 13:47:45,909 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 [2021-11-19 13:47:45,910 INFO L933 BasicCegarLoop]: 4617 mSDtfsCounter, 980 mSDsluCounter, 17864 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1272 SdHoareTripleChecker+Valid, 22481 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 13:47:45,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1272 Valid, 22481 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 13:47:45,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62033 states. [2021-11-19 13:47:49,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62033 to 47546. [2021-11-19 13:47:49,267 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) [2021-11-19 13:47:49,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47546 states to 47546 states and 64255 transitions. [2021-11-19 13:47:49,435 INFO L78 Accepts]: Start accepts. Automaton has 47546 states and 64255 transitions. Word has length 571 [2021-11-19 13:47:49,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:47:49,436 INFO L470 AbstractCegarLoop]: Abstraction has 47546 states and 64255 transitions. [2021-11-19 13:47:49,436 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) [2021-11-19 13:47:49,436 INFO L276 IsEmpty]: Start isEmpty. Operand 47546 states and 64255 transitions. [2021-11-19 13:47:49,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2021-11-19 13:47:49,463 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:47:49,463 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] [2021-11-19 13:47:49,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 13:47:49,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:47:49,688 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:47:49,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:47:49,689 INFO L85 PathProgramCache]: Analyzing trace with hash -721424547, now seen corresponding path program 1 times [2021-11-19 13:47:49,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:47:49,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [273525782] [2021-11-19 13:47:49,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:47:49,692 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:47:49,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:47:49,693 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:47:49,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 13:47:53,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:47:53,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 3119 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 13:47:53,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:47:54,445 INFO L134 CoverageAnalysis]: Checked inductivity of 3803 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 3479 trivial. 0 not checked. [2021-11-19 13:47:54,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:47:55,970 INFO L134 CoverageAnalysis]: Checked inductivity of 3803 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3803 trivial. 0 not checked. [2021-11-19 13:47:55,970 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:47:55,971 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [273525782] [2021-11-19 13:47:55,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [273525782] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:47:55,971 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:47:55,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 13:47:55,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101313472] [2021-11-19 13:47:55,971 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:47:55,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 13:47:55,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:47:55,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 13:47:55,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 13:47:55,978 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) [2021-11-19 13:47:58,897 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 [] [2021-11-19 13:48:01,720 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:48:03,798 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:48:10,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:48:10,594 INFO L93 Difference]: Finished difference Result 139470 states and 194582 transitions. [2021-11-19 13:48:10,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:48:10,595 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 [2021-11-19 13:48:10,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:48:11,063 INFO L225 Difference]: With dead ends: 139470 [2021-11-19 13:48:11,063 INFO L226 Difference]: Without dead ends: 91977 [2021-11-19 13:48:11,179 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 [2021-11-19 13:48:11,180 INFO L933 BasicCegarLoop]: 5906 mSDtfsCounter, 7845 mSDsluCounter, 22455 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 1963 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8090 SdHoareTripleChecker+Valid, 28361 SdHoareTripleChecker+Invalid, 2241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1963 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:48:11,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8090 Valid, 28361 Invalid, 2241 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1963 Valid, 275 Invalid, 3 Unknown, 0 Unchecked, 10.0s Time] [2021-11-19 13:48:11,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91977 states. [2021-11-19 13:48:14,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91977 to 47558. [2021-11-19 13:48:14,721 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) [2021-11-19 13:48:14,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47558 states to 47558 states and 64267 transitions. [2021-11-19 13:48:14,881 INFO L78 Accepts]: Start accepts. Automaton has 47558 states and 64267 transitions. Word has length 574 [2021-11-19 13:48:14,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:48:14,882 INFO L470 AbstractCegarLoop]: Abstraction has 47558 states and 64267 transitions. [2021-11-19 13:48:14,882 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) [2021-11-19 13:48:14,883 INFO L276 IsEmpty]: Start isEmpty. Operand 47558 states and 64267 transitions. [2021-11-19 13:48:14,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 580 [2021-11-19 13:48:14,907 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:48:14,908 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] [2021-11-19 13:48:14,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 13:48:15,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:48:15,132 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:48:15,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:48:15,133 INFO L85 PathProgramCache]: Analyzing trace with hash 451036592, now seen corresponding path program 1 times [2021-11-19 13:48:15,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:48:15,135 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [989038232] [2021-11-19 13:48:15,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:48:15,135 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:48:15,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:48:15,137 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:48:15,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 13:48:18,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:48:18,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 2971 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-19 13:48:18,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:48:20,320 INFO L134 CoverageAnalysis]: Checked inductivity of 3702 backedges. 514 proven. 0 refuted. 0 times theorem prover too weak. 3188 trivial. 0 not checked. [2021-11-19 13:48:20,320 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:48:22,372 INFO L134 CoverageAnalysis]: Checked inductivity of 3702 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 3570 trivial. 0 not checked. [2021-11-19 13:48:22,372 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:48:22,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [989038232] [2021-11-19 13:48:22,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [989038232] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:48:22,373 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:48:22,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 17 [2021-11-19 13:48:22,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047940466] [2021-11-19 13:48:22,373 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:48:22,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-19 13:48:22,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:48:22,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-19 13:48:22,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-11-19 13:48:22,375 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) [2021-11-19 13:49:03,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:49:03,446 INFO L93 Difference]: Finished difference Result 122866 states and 167822 transitions. [2021-11-19 13:49:03,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-19 13:49:03,446 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 [2021-11-19 13:49:03,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:49:03,895 INFO L225 Difference]: With dead ends: 122866 [2021-11-19 13:49:03,896 INFO L226 Difference]: Without dead ends: 75331 [2021-11-19 13:49:03,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1176 GetRequests, 1143 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=189, Invalid=1001, Unknown=0, NotChecked=0, Total=1190 [2021-11-19 13:49:03,993 INFO L933 BasicCegarLoop]: 6842 mSDtfsCounter, 11551 mSDsluCounter, 71488 mSDsCounter, 0 mSdLazyCounter, 7576 mSolverCounterSat, 2117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11961 SdHoareTripleChecker+Valid, 78330 SdHoareTripleChecker+Invalid, 9693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2117 IncrementalHoareTripleChecker+Valid, 7576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.5s IncrementalHoareTripleChecker+Time [2021-11-19 13:49:03,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11961 Valid, 78330 Invalid, 9693 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2117 Valid, 7576 Invalid, 0 Unknown, 0 Unchecked, 34.5s Time] [2021-11-19 13:49:04,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75331 states. [2021-11-19 13:49:07,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75331 to 47558. [2021-11-19 13:49:07,054 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) [2021-11-19 13:49:07,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47558 states to 47558 states and 64267 transitions. [2021-11-19 13:49:07,239 INFO L78 Accepts]: Start accepts. Automaton has 47558 states and 64267 transitions. Word has length 579 [2021-11-19 13:49:07,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:49:07,240 INFO L470 AbstractCegarLoop]: Abstraction has 47558 states and 64267 transitions. [2021-11-19 13:49:07,240 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) [2021-11-19 13:49:07,240 INFO L276 IsEmpty]: Start isEmpty. Operand 47558 states and 64267 transitions. [2021-11-19 13:49:07,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2021-11-19 13:49:07,253 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:49:07,253 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] [2021-11-19 13:49:07,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-19 13:49:07,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:49:07,455 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:49:07,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:49:07,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1600640883, now seen corresponding path program 1 times [2021-11-19 13:49:07,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:49:07,458 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1939106081] [2021-11-19 13:49:07,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:49:07,459 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:49:07,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:49:07,462 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:49:07,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-19 13:49:11,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:49:11,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 3166 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-19 13:49:11,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:49:12,720 INFO L134 CoverageAnalysis]: Checked inductivity of 3920 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 3867 trivial. 0 not checked. [2021-11-19 13:49:12,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:49:14,347 INFO L134 CoverageAnalysis]: Checked inductivity of 3920 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 3870 trivial. 0 not checked. [2021-11-19 13:49:14,347 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:49:14,347 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1939106081] [2021-11-19 13:49:14,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1939106081] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:49:14,347 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:49:14,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-19 13:49:14,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843971096] [2021-11-19 13:49:14,348 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:49:14,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 13:49:14,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:49:14,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 13:49:14,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-19 13:49:14,350 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) [2021-11-19 13:49:19,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:49:19,152 INFO L93 Difference]: Finished difference Result 101213 states and 137643 transitions. [2021-11-19 13:49:19,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 13:49:19,153 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 [2021-11-19 13:49:19,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:49:19,346 INFO L225 Difference]: With dead ends: 101213 [2021-11-19 13:49:19,346 INFO L226 Difference]: Without dead ends: 53708 [2021-11-19 13:49:19,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1191 GetRequests, 1179 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-11-19 13:49:19,449 INFO L933 BasicCegarLoop]: 5297 mSDtfsCounter, 3294 mSDsluCounter, 29694 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 892 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3294 SdHoareTripleChecker+Valid, 34991 SdHoareTripleChecker+Invalid, 928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 892 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:49:19,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3294 Valid, 34991 Invalid, 928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [892 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-19 13:49:19,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53708 states. [2021-11-19 13:49:22,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53708 to 47582. [2021-11-19 13:49:22,431 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) [2021-11-19 13:49:22,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47582 states to 47582 states and 64305 transitions. [2021-11-19 13:49:22,604 INFO L78 Accepts]: Start accepts. Automaton has 47582 states and 64305 transitions. Word has length 595 [2021-11-19 13:49:22,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:49:22,605 INFO L470 AbstractCegarLoop]: Abstraction has 47582 states and 64305 transitions. [2021-11-19 13:49:22,605 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) [2021-11-19 13:49:22,606 INFO L276 IsEmpty]: Start isEmpty. Operand 47582 states and 64305 transitions. [2021-11-19 13:49:22,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 612 [2021-11-19 13:49:22,618 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:49:22,619 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] [2021-11-19 13:49:22,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-11-19 13:49:22,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:49:22,832 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:49:22,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:49:22,833 INFO L85 PathProgramCache]: Analyzing trace with hash -2007246315, now seen corresponding path program 1 times [2021-11-19 13:49:22,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:49:22,837 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [42709118] [2021-11-19 13:49:22,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:49:22,837 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:49:22,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:49:22,839 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:49:22,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-19 13:49:26,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:49:26,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 3198 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 13:49:26,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:49:28,409 INFO L134 CoverageAnalysis]: Checked inductivity of 4040 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4040 trivial. 0 not checked. [2021-11-19 13:49:28,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:49:29,541 INFO L134 CoverageAnalysis]: Checked inductivity of 4040 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4040 trivial. 0 not checked. [2021-11-19 13:49:29,541 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:49:29,541 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [42709118] [2021-11-19 13:49:29,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [42709118] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:49:29,541 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:49:29,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-19 13:49:29,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874906162] [2021-11-19 13:49:29,542 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:49:29,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:49:29,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:49:29,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:49:29,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:49:29,545 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) [2021-11-19 13:49:32,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:49:32,609 INFO L93 Difference]: Finished difference Result 95223 states and 128879 transitions. [2021-11-19 13:49:32,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:49:32,609 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 [2021-11-19 13:49:32,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:49:32,857 INFO L225 Difference]: With dead ends: 95223 [2021-11-19 13:49:32,857 INFO L226 Difference]: Without dead ends: 47694 [2021-11-19 13:49:33,014 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 [2021-11-19 13:49:33,017 INFO L933 BasicCegarLoop]: 4041 mSDtfsCounter, 12 mSDsluCounter, 16153 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 20194 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:49:33,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 20194 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:49:33,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47694 states. [2021-11-19 13:49:36,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47694 to 47694. [2021-11-19 13:49:36,556 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) [2021-11-19 13:49:36,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47694 states to 47694 states and 64405 transitions. [2021-11-19 13:49:36,723 INFO L78 Accepts]: Start accepts. Automaton has 47694 states and 64405 transitions. Word has length 611 [2021-11-19 13:49:36,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:49:36,724 INFO L470 AbstractCegarLoop]: Abstraction has 47694 states and 64405 transitions. [2021-11-19 13:49:36,725 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) [2021-11-19 13:49:36,725 INFO L276 IsEmpty]: Start isEmpty. Operand 47694 states and 64405 transitions. [2021-11-19 13:49:36,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 677 [2021-11-19 13:49:36,735 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:49:36,736 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] [2021-11-19 13:49:36,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-19 13:49:36,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:49:36,953 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:49:36,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:49:36,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1752021830, now seen corresponding path program 1 times [2021-11-19 13:49:36,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:49:36,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1571007718] [2021-11-19 13:49:36,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:49:36,956 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:49:36,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:49:36,957 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:49:36,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_436c795c-87bf-411d-8285-edb79f172d62/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-19 13:49:41,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:49:41,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 3382 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:49:41,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:49:46,672 INFO L134 CoverageAnalysis]: Checked inductivity of 4067 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4067 trivial. 0 not checked. [2021-11-19 13:49:46,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:49:49,090 INFO L134 CoverageAnalysis]: Checked inductivity of 4067 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4067 trivial. 0 not checked. [2021-11-19 13:49:49,091 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:49:49,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1571007718] [2021-11-19 13:49:49,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1571007718] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:49:49,091 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:49:49,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 4] imperfect sequences [] total 5 [2021-11-19 13:49:49,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966396084] [2021-11-19 13:49:49,092 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:49:49,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:49:49,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:49:49,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:49:49,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:49:49,095 INFO L87 Difference]: Start difference. First operand 47694 states and 64405 transitions. Second operand has 5 states, 5 states have (on average 81.8) internal successors, (409), 5 states have internal predecessors, (409), 3 states have call successors, (134), 3 states have call predecessors, (134), 4 states have return successors, (130), 4 states have call predecessors, (130), 3 states have call successors, (130)