./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb_p.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb_p.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ee91797f6143b4fe80e7c90b0707f35813b28455783da5eca6bad66702efa7d7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:48:59,971 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:48:59,974 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:49:00,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:49:00,030 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:49:00,032 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:49:00,036 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:49:00,040 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:49:00,045 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:49:00,051 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:49:00,054 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:49:00,057 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:49:00,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:49:00,060 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:49:00,063 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:49:00,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:49:00,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:49:00,068 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:49:00,070 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:49:00,079 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:49:00,081 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:49:00,082 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:49:00,086 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:49:00,087 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:49:00,098 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:49:00,099 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:49:00,099 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:49:00,102 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:49:00,103 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:49:00,104 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:49:00,105 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:49:00,106 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:49:00,109 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:49:00,110 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:49:00,111 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:49:00,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:49:00,113 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:49:00,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:49:00,113 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:49:00,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:49:00,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:49:00,116 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-17 10:49:00,158 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:49:00,159 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:49:00,159 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:49:00,160 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:49:00,161 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:49:00,161 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:49:00,162 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:49:00,162 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:49:00,162 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:49:00,163 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:49:00,164 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:49:00,164 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:49:00,164 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:49:00,165 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:49:00,165 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:49:00,165 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-17 10:49:00,165 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-17 10:49:00,166 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-17 10:49:00,166 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:49:00,166 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-17 10:49:00,166 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:49:00,167 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:49:00,167 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:49:00,167 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:49:00,167 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:49:00,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:49:00,168 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:49:00,168 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:49:00,169 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:49:00,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:49:00,169 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee91797f6143b4fe80e7c90b0707f35813b28455783da5eca6bad66702efa7d7 [2022-10-17 10:49:00,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:49:00,493 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:49:00,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:49:00,500 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:49:00,500 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:49:00,502 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb_p.i [2022-10-17 10:49:00,577 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ/data/6351a0aa2/ece8b4540b6f45af913a332356cd6cb0/FLAG8bde152d4 [2022-10-17 10:49:01,338 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:49:01,340 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb_p.i [2022-10-17 10:49:01,378 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ/data/6351a0aa2/ece8b4540b6f45af913a332356cd6cb0/FLAG8bde152d4 [2022-10-17 10:49:01,437 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ/data/6351a0aa2/ece8b4540b6f45af913a332356cd6cb0 [2022-10-17 10:49:01,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:49:01,443 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:49:01,447 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:49:01,447 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:49:01,451 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:49:01,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:49:01" (1/1) ... [2022-10-17 10:49:01,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@151f1e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:49:01, skipping insertion in model container [2022-10-17 10:49:01,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:49:01" (1/1) ... [2022-10-17 10:49:01,461 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:49:01,558 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:49:01,834 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_47446d7b-e664-468b-bc14-34dbfa39adf9/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb_p.i[457,470] [2022-10-17 10:49:02,983 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:49:03,019 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2022-10-17 10:49:03,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1f13d766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:49:03, skipping insertion in model container [2022-10-17 10:49:03,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:49:03,027 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-10-17 10:49:03,029 INFO L158 Benchmark]: Toolchain (without parser) took 1585.32ms. Allocated memory was 117.4MB in the beginning and 165.7MB in the end (delta: 48.2MB). Free memory was 83.4MB in the beginning and 109.6MB in the end (delta: -26.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-10-17 10:49:03,031 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory was 69.5MB in the beginning and 69.4MB in the end (delta: 77.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:49:03,033 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1580.22ms. Allocated memory was 117.4MB in the beginning and 165.7MB in the end (delta: 48.2MB). Free memory was 83.1MB in the beginning and 110.2MB in the end (delta: -27.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-10-17 10:49:03,036 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory was 69.5MB in the beginning and 69.4MB in the end (delta: 77.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1580.22ms. Allocated memory was 117.4MB in the beginning and 165.7MB in the end (delta: 48.2MB). Free memory was 83.1MB in the beginning and 110.2MB in the end (delta: -27.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2976]: Unsupported Syntax Found a cast between two array/pointer types of different sizes 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_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb_p.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ee91797f6143b4fe80e7c90b0707f35813b28455783da5eca6bad66702efa7d7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:49:05,401 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:49:05,404 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:49:05,447 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:49:05,448 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:49:05,449 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:49:05,451 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:49:05,454 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:49:05,456 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:49:05,458 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:49:05,459 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:49:05,461 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:49:05,461 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:49:05,463 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:49:05,464 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:49:05,466 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:49:05,467 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:49:05,468 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:49:05,470 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:49:05,473 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:49:05,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:49:05,477 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:49:05,478 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:49:05,480 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:49:05,485 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:49:05,486 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:49:05,486 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:49:05,487 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:49:05,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:49:05,493 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:49:05,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:49:05,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:49:05,495 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:49:05,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:49:05,502 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:49:05,502 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:49:05,503 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:49:05,503 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:49:05,504 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:49:05,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:49:05,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:49:05,508 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-10-17 10:49:05,571 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:49:05,572 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:49:05,573 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:49:05,573 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:49:05,574 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:49:05,574 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:49:05,576 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:49:05,576 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:49:05,576 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:49:05,577 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:49:05,578 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:49:05,578 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:49:05,578 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:49:05,578 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:49:05,579 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:49:05,579 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-17 10:49:05,579 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-17 10:49:05,579 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-17 10:49:05,579 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:49:05,580 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-17 10:49:05,580 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-10-17 10:49:05,580 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-10-17 10:49:05,580 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:49:05,580 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:49:05,581 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:49:05,581 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:49:05,581 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:49:05,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:49:05,582 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:49:05,582 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:49:05,582 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-10-17 10:49:05,582 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-10-17 10:49:05,583 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-17 10:49:05,583 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_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee91797f6143b4fe80e7c90b0707f35813b28455783da5eca6bad66702efa7d7 [2022-10-17 10:49:05,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:49:05,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:49:05,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:49:05,981 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:49:05,982 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:49:05,985 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb_p.i [2022-10-17 10:49:06,069 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ/data/773909d28/a189fd1eb3c446f1945eedb961f229a0/FLAGf18523352 [2022-10-17 10:49:06,983 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:49:06,987 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb_p.i [2022-10-17 10:49:07,030 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ/data/773909d28/a189fd1eb3c446f1945eedb961f229a0/FLAGf18523352 [2022-10-17 10:49:07,081 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ/data/773909d28/a189fd1eb3c446f1945eedb961f229a0 [2022-10-17 10:49:07,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:49:07,088 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:49:07,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:49:07,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:49:07,098 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:49:07,099 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:49:07" (1/1) ... [2022-10-17 10:49:07,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e99e8f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:49:07, skipping insertion in model container [2022-10-17 10:49:07,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:49:07" (1/1) ... [2022-10-17 10:49:07,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:49:07,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:49:07,502 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_47446d7b-e664-468b-bc14-34dbfa39adf9/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb_p.i[457,470] [2022-10-17 10:49:08,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:49:08,860 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-10-17 10:49:08,884 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:49:08,886 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_47446d7b-e664-468b-bc14-34dbfa39adf9/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb_p.i[457,470] [2022-10-17 10:49:09,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:49:09,057 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:49:09,069 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_47446d7b-e664-468b-bc14-34dbfa39adf9/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb_p.i[457,470] [2022-10-17 10:49:09,218 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:49:09,423 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:49:09,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:49:09 WrapperNode [2022-10-17 10:49:09,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:49:09,429 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:49:09,429 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:49:09,429 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:49:09,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:49:09" (1/1) ... [2022-10-17 10:49:09,557 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:49:09" (1/1) ... [2022-10-17 10:49:09,664 INFO L138 Inliner]: procedures = 482, calls = 839, calls flagged for inlining = 54, calls inlined = 37, statements flattened = 970 [2022-10-17 10:49:09,665 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:49:09,666 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:49:09,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:49:09,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:49:09,676 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:49:09" (1/1) ... [2022-10-17 10:49:09,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:49:09" (1/1) ... [2022-10-17 10:49:09,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:49:09" (1/1) ... [2022-10-17 10:49:09,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:49:09" (1/1) ... [2022-10-17 10:49:09,750 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:49:09" (1/1) ... [2022-10-17 10:49:09,759 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:49:09" (1/1) ... [2022-10-17 10:49:09,778 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:49:09" (1/1) ... [2022-10-17 10:49:09,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:49:09" (1/1) ... [2022-10-17 10:49:09,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:49:09,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:49:09,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:49:09,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:49:09,822 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:49:09" (1/1) ... [2022-10-17 10:49:09,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:49:09,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:49:09,857 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:49:09,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:49:09,911 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2022-10-17 10:49:09,911 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2022-10-17 10:49:09,911 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2022-10-17 10:49:09,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2022-10-17 10:49:09,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-10-17 10:49:09,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2022-10-17 10:49:09,912 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-17 10:49:09,912 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-17 10:49:09,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:49:09,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-10-17 10:49:09,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-10-17 10:49:09,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-10-17 10:49:09,913 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-10-17 10:49:09,913 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-10-17 10:49:09,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-10-17 10:49:09,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2022-10-17 10:49:09,914 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2022-10-17 10:49:09,914 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2022-10-17 10:49:09,914 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-10-17 10:49:09,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-10-17 10:49:09,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:49:09,914 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2022-10-17 10:49:09,915 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2022-10-17 10:49:09,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:49:09,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:49:09,915 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 10:49:09,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 10:49:09,916 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2022-10-17 10:49:09,916 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2022-10-17 10:49:09,916 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2022-10-17 10:49:09,917 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2022-10-17 10:49:09,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:49:09,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:49:09,917 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2022-10-17 10:49:09,917 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2022-10-17 10:49:09,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-10-17 10:49:09,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-10-17 10:49:09,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-10-17 10:49:09,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 10:49:09,918 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 10:49:09,918 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 10:49:09,919 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-10-17 10:49:09,919 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-10-17 10:49:09,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:49:09,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:49:09,919 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-10-17 10:49:09,920 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-10-17 10:49:09,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-10-17 10:49:09,920 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2022-10-17 10:49:09,921 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2022-10-17 10:49:09,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-10-17 10:49:09,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-10-17 10:49:09,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-10-17 10:49:09,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 10:49:09,923 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2022-10-17 10:49:09,924 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2022-10-17 10:49:09,924 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-10-17 10:49:09,924 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-10-17 10:49:09,924 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-10-17 10:49:09,925 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-10-17 10:49:09,925 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2022-10-17 10:49:09,925 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2022-10-17 10:49:09,925 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2022-10-17 10:49:09,925 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2022-10-17 10:49:09,925 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2022-10-17 10:49:09,925 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2022-10-17 10:49:09,926 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2022-10-17 10:49:09,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2022-10-17 10:49:09,927 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2022-10-17 10:49:09,927 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2022-10-17 10:49:09,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-10-17 10:49:09,927 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2022-10-17 10:49:09,927 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2022-10-17 10:49:09,927 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-10-17 10:49:09,928 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-10-17 10:49:09,928 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~TO~VOID [2022-10-17 10:49:09,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~TO~VOID [2022-10-17 10:49:10,455 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:49:10,459 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:49:16,877 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:49:16,907 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:49:16,914 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-17 10:49:16,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:49:16 BoogieIcfgContainer [2022-10-17 10:49:16,920 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:49:16,923 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:49:16,924 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:49:16,928 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:49:16,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:49:07" (1/3) ... [2022-10-17 10:49:16,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f6fbe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:49:16, skipping insertion in model container [2022-10-17 10:49:16,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:49:09" (2/3) ... [2022-10-17 10:49:16,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f6fbe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:49:16, skipping insertion in model container [2022-10-17 10:49:16,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:49:16" (3/3) ... [2022-10-17 10:49:16,934 INFO L112 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_inb_p.i [2022-10-17 10:49:16,956 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:49:16,957 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 205 error locations. [2022-10-17 10:49:17,048 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:49:17,058 INFO L357 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7140abff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:49:17,059 INFO L358 AbstractCegarLoop]: Starting to check reachability of 205 error locations. [2022-10-17 10:49:17,069 INFO L276 IsEmpty]: Start isEmpty. Operand has 666 states, 356 states have (on average 1.8202247191011236) internal successors, (648), 566 states have internal predecessors, (648), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2022-10-17 10:49:17,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 10:49:17,076 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:49:17,077 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-17 10:49:17,077 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2022-10-17 10:49:17,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:49:17,085 INFO L85 PathProgramCache]: Analyzing trace with hash 333908101, now seen corresponding path program 1 times [2022-10-17 10:49:17,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 10:49:17,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [280642230] [2022-10-17 10:49:17,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:49:17,101 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 10:49:17,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 10:49:17,104 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 10:49:17,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-10-17 10:49:17,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:49:17,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 10:49:17,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:49:17,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:49:17,857 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:49:17,858 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 10:49:17,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [280642230] [2022-10-17 10:49:17,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [280642230] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:49:17,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:49:17,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:49:17,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497871435] [2022-10-17 10:49:17,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:49:17,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:49:17,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 10:49:17,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:49:17,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:49:17,897 INFO L87 Difference]: Start difference. First operand has 666 states, 356 states have (on average 1.8202247191011236) internal successors, (648), 566 states have internal predecessors, (648), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:49:19,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 10:49:21,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 10:49:26,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:49:26,106 INFO L93 Difference]: Finished difference Result 1204 states and 1443 transitions. [2022-10-17 10:49:26,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:49:26,109 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-17 10:49:26,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:49:26,133 INFO L225 Difference]: With dead ends: 1204 [2022-10-17 10:49:26,134 INFO L226 Difference]: Without dead ends: 1200 [2022-10-17 10:49:26,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:49:26,139 INFO L413 NwaCegarLoop]: 759 mSDtfsCounter, 687 mSDsluCounter, 1725 mSDsCounter, 0 mSdLazyCounter, 1106 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 2484 SdHoareTripleChecker+Invalid, 1112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1106 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:49:26,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [688 Valid, 2484 Invalid, 1112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1106 Invalid, 2 Unknown, 0 Unchecked, 8.0s Time] [2022-10-17 10:49:26,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1200 states. [2022-10-17 10:49:26,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1200 to 987. [2022-10-17 10:49:26,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 987 states, 594 states have (on average 1.803030303030303) internal successors, (1071), 814 states have internal predecessors, (1071), 138 states have call successors, (138), 50 states have call predecessors, (138), 50 states have return successors, (138), 131 states have call predecessors, (138), 138 states have call successors, (138) [2022-10-17 10:49:26,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 987 states to 987 states and 1347 transitions. [2022-10-17 10:49:26,304 INFO L78 Accepts]: Start accepts. Automaton has 987 states and 1347 transitions. Word has length 5 [2022-10-17 10:49:26,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:49:26,305 INFO L495 AbstractCegarLoop]: Abstraction has 987 states and 1347 transitions. [2022-10-17 10:49:26,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:49:26,305 INFO L276 IsEmpty]: Start isEmpty. Operand 987 states and 1347 transitions. [2022-10-17 10:49:26,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 10:49:26,306 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:49:26,306 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-17 10:49:26,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:49:26,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 10:49:26,523 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2022-10-17 10:49:26,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:49:26,524 INFO L85 PathProgramCache]: Analyzing trace with hash 333908102, now seen corresponding path program 1 times [2022-10-17 10:49:26,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 10:49:26,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [316005796] [2022-10-17 10:49:26,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:49:26,525 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 10:49:26,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 10:49:26,528 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 10:49:26,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47446d7b-e664-468b-bc14-34dbfa39adf9/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-10-17 10:49:26,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:49:26,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 10:49:26,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:49:27,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:49:27,090 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:49:27,090 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 10:49:27,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [316005796] [2022-10-17 10:49:27,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [316005796] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:49:27,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:49:27,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:49:27,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232458680] [2022-10-17 10:49:27,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:49:27,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:49:27,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 10:49:27,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:49:27,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:49:27,093 INFO L87 Difference]: Start difference. First operand 987 states and 1347 transitions. Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:49:29,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 10:49:31,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []