./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_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_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_p.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5d4ac8f9993fdd9a611524b9b9f0ae991f3672b4fa16738dbd64025282f00ca6 --- 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 17:39:25,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:39:25,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:39:25,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:39:25,314 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:39:25,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:39:25,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:39:25,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:39:25,326 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:39:25,328 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:39:25,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:39:25,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:39:25,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:39:25,337 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:39:25,341 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:39:25,342 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:39:25,345 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:39:25,353 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:39:25,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:39:25,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:39:25,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:39:25,367 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:39:25,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:39:25,370 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:39:25,376 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:39:25,377 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:39:25,378 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:39:25,379 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:39:25,380 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:39:25,381 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:39:25,381 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:39:25,390 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:39:25,391 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:39:25,392 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:39:25,393 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:39:25,394 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:39:25,394 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:39:25,395 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:39:25,395 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:39:25,396 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:39:25,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:39:25,398 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-10-17 17:39:25,433 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:39:25,433 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:39:25,433 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 17:39:25,433 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 17:39:25,434 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:39:25,434 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 17:39:25,434 INFO L138 SettingsManager]: * User list type=DISABLED [2022-10-17 17:39:25,435 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-10-17 17:39:25,435 INFO L138 SettingsManager]: * Explicit value domain=true [2022-10-17 17:39:25,435 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-10-17 17:39:25,435 INFO L138 SettingsManager]: * Octagon Domain=false [2022-10-17 17:39:25,435 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-10-17 17:39:25,436 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-10-17 17:39:25,436 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-10-17 17:39:25,436 INFO L138 SettingsManager]: * Interval Domain=false [2022-10-17 17:39:25,436 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-10-17 17:39:25,436 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-10-17 17:39:25,437 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-10-17 17:39:25,437 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 17:39:25,437 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 17:39:25,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:39:25,438 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 17:39:25,438 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 17:39:25,438 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:39:25,439 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 17:39:25,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:39:25,439 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-17 17:39:25,439 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-17 17:39:25,439 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-17 17:39:25,440 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:39:25,440 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-17 17:39:25,440 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 17:39:25,440 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:39:25,441 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:39:25,441 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 17:39:25,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:39:25,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:39:25,441 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-10-17 17:39:25,442 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:39:25,442 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-10-17 17:39:25,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:39:25,442 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-10-17 17:39:25,443 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_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d4ac8f9993fdd9a611524b9b9f0ae991f3672b4fa16738dbd64025282f00ca6 [2022-10-17 17:39:25,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:39:25,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:39:25,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:39:25,702 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:39:25,703 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:39:25,704 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_p.i [2022-10-17 17:39:25,779 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/data/bb5f162ce/8dba959c65f242b8abcffe2dd723fe2b/FLAG313906c14 [2022-10-17 17:39:26,573 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:39:26,577 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_p.i [2022-10-17 17:39:26,618 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/data/bb5f162ce/8dba959c65f242b8abcffe2dd723fe2b/FLAG313906c14 [2022-10-17 17:39:26,662 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/data/bb5f162ce/8dba959c65f242b8abcffe2dd723fe2b [2022-10-17 17:39:26,666 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:39:26,669 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:39:26,671 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:39:26,671 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:39:26,675 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:39:26,677 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:39:26" (1/1) ... [2022-10-17 17:39:26,679 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@541b1bf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:39:26, skipping insertion in model container [2022-10-17 17:39:26,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:39:26" (1/1) ... [2022-10-17 17:39:26,687 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:39:26,775 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:39:27,030 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_78273ef4-7889-431f-bafc-0498cceb421b/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_p.i[458,471] [2022-10-17 17:39:28,236 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:39:28,263 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 17:39:28,264 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4522a996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:39:28, skipping insertion in model container [2022-10-17 17:39:28,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:39:28,265 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-10-17 17:39:28,266 INFO L158 Benchmark]: Toolchain (without parser) took 1596.89ms. Allocated memory is still 96.5MB. Free memory was 65.8MB in the beginning and 41.9MB in the end (delta: 23.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-10-17 17:39:28,267 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 96.5MB. Free memory is still 65.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:39:28,268 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1593.42ms. Allocated memory is still 96.5MB. Free memory was 65.6MB in the beginning and 41.9MB in the end (delta: 23.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-10-17 17:39:28,270 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 96.5MB. Free memory is still 65.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1593.42ms. Allocated memory is still 96.5MB. Free memory was 65.6MB in the beginning and 41.9MB in the end (delta: 23.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2975]: 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_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_p.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5d4ac8f9993fdd9a611524b9b9f0ae991f3672b4fa16738dbd64025282f00ca6 --- 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 17:39:30,644 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:39:30,647 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:39:30,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:39:30,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:39:30,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:39:30,719 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:39:30,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:39:30,724 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:39:30,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:39:30,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:39:30,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:39:30,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:39:30,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:39:30,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:39:30,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:39:30,735 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:39:30,736 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:39:30,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:39:30,742 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:39:30,744 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:39:30,746 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:39:30,748 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:39:30,749 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:39:30,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:39:30,755 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:39:30,756 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:39:30,757 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:39:30,757 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:39:30,759 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:39:30,759 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:39:30,761 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:39:30,762 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:39:30,763 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:39:30,764 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:39:30,765 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:39:30,766 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:39:30,766 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:39:30,766 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:39:30,767 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:39:30,768 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:39:30,772 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-10-17 17:39:30,797 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:39:30,798 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:39:30,798 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 17:39:30,798 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 17:39:30,799 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:39:30,799 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 17:39:30,800 INFO L138 SettingsManager]: * User list type=DISABLED [2022-10-17 17:39:30,800 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-10-17 17:39:30,800 INFO L138 SettingsManager]: * Explicit value domain=true [2022-10-17 17:39:30,800 INFO L138 SettingsManager]: * Octagon Domain=false [2022-10-17 17:39:30,801 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-10-17 17:39:30,801 INFO L138 SettingsManager]: * Interval Domain=false [2022-10-17 17:39:30,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 17:39:30,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 17:39:30,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:39:30,802 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 17:39:30,803 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 17:39:30,803 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:39:30,803 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 17:39:30,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:39:30,804 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-17 17:39:30,804 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-17 17:39:30,804 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-17 17:39:30,804 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:39:30,804 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-17 17:39:30,805 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-10-17 17:39:30,805 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-10-17 17:39:30,805 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 17:39:30,805 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:39:30,806 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:39:30,806 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 17:39:30,806 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 17:39:30,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:39:30,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:39:30,807 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:39:30,807 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-10-17 17:39:30,807 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-10-17 17:39:30,807 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-10-17 17:39:30,808 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-17 17:39:30,808 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_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d4ac8f9993fdd9a611524b9b9f0ae991f3672b4fa16738dbd64025282f00ca6 [2022-10-17 17:39:31,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:39:31,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:39:31,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:39:31,220 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:39:31,223 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:39:31,225 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_p.i [2022-10-17 17:39:31,311 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/data/836bd3b19/365bed1d90c64e1c91de870721eaeeae/FLAGadbda5665 [2022-10-17 17:39:32,153 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:39:32,154 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_p.i [2022-10-17 17:39:32,188 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/data/836bd3b19/365bed1d90c64e1c91de870721eaeeae/FLAGadbda5665 [2022-10-17 17:39:32,201 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/data/836bd3b19/365bed1d90c64e1c91de870721eaeeae [2022-10-17 17:39:32,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:39:32,208 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:39:32,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:39:32,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:39:32,217 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:39:32,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:39:32" (1/1) ... [2022-10-17 17:39:32,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@395cb14a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:39:32, skipping insertion in model container [2022-10-17 17:39:32,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:39:32" (1/1) ... [2022-10-17 17:39:32,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:39:32,329 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:39:32,576 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_78273ef4-7889-431f-bafc-0498cceb421b/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_p.i[458,471] [2022-10-17 17:39:34,017 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:39:34,046 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-10-17 17:39:34,068 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:39:34,070 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_78273ef4-7889-431f-bafc-0498cceb421b/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_p.i[458,471] [2022-10-17 17:39:34,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:39:34,209 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:39:34,220 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_78273ef4-7889-431f-bafc-0498cceb421b/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_p.i[458,471] [2022-10-17 17:39:34,369 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:39:34,574 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:39:34,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:39:34 WrapperNode [2022-10-17 17:39:34,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:39:34,576 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:39:34,576 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:39:34,576 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:39:34,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:39:34" (1/1) ... [2022-10-17 17:39:34,684 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:39:34" (1/1) ... [2022-10-17 17:39:34,803 INFO L138 Inliner]: procedures = 482, calls = 839, calls flagged for inlining = 54, calls inlined = 37, statements flattened = 970 [2022-10-17 17:39:34,803 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:39:34,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:39:34,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:39:34,808 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:39:34,817 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:39:34" (1/1) ... [2022-10-17 17:39:34,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:39:34" (1/1) ... [2022-10-17 17:39:34,830 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:39:34" (1/1) ... [2022-10-17 17:39:34,831 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:39:34" (1/1) ... [2022-10-17 17:39:34,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:39:34" (1/1) ... [2022-10-17 17:39:34,881 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:39:34" (1/1) ... [2022-10-17 17:39:34,891 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:39:34" (1/1) ... [2022-10-17 17:39:34,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:39:34" (1/1) ... [2022-10-17 17:39:34,928 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:39:34,929 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:39:34,929 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:39:34,929 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:39:34,930 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:39:34" (1/1) ... [2022-10-17 17:39:34,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:39:34,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:39:34,977 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 17:39:34,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 17:39:35,031 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2022-10-17 17:39:35,031 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2022-10-17 17:39:35,031 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2022-10-17 17:39:35,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2022-10-17 17:39:35,032 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-10-17 17:39:35,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2022-10-17 17:39:35,032 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-17 17:39:35,032 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-17 17:39:35,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 17:39:35,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-10-17 17:39:35,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-10-17 17:39:35,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-10-17 17:39:35,033 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-10-17 17:39:35,033 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-10-17 17:39:35,033 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-10-17 17:39:35,033 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2022-10-17 17:39:35,034 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2022-10-17 17:39:35,034 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2022-10-17 17:39:35,034 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-10-17 17:39:35,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-10-17 17:39:35,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 17:39:35,034 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2022-10-17 17:39:35,035 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2022-10-17 17:39:35,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:39:35,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 17:39:35,036 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 17:39:35,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 17:39:35,036 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2022-10-17 17:39:35,036 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2022-10-17 17:39:35,036 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2022-10-17 17:39:35,037 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2022-10-17 17:39:35,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:39:35,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:39:35,037 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2022-10-17 17:39:35,038 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2022-10-17 17:39:35,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-10-17 17:39:35,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-10-17 17:39:35,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-10-17 17:39:35,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 17:39:35,038 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 17:39:35,039 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 17:39:35,039 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-10-17 17:39:35,040 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-10-17 17:39:35,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 17:39:35,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 17:39:35,041 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-10-17 17:39:35,042 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-10-17 17:39:35,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-10-17 17:39:35,042 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2022-10-17 17:39:35,042 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2022-10-17 17:39:35,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-10-17 17:39:35,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-10-17 17:39:35,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-10-17 17:39:35,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 17:39:35,043 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2022-10-17 17:39:35,043 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2022-10-17 17:39:35,044 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-10-17 17:39:35,044 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-10-17 17:39:35,044 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-10-17 17:39:35,044 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-10-17 17:39:35,044 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2022-10-17 17:39:35,044 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2022-10-17 17:39:35,045 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2022-10-17 17:39:35,045 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2022-10-17 17:39:35,045 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2022-10-17 17:39:35,045 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2022-10-17 17:39:35,046 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2022-10-17 17:39:35,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2022-10-17 17:39:35,046 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2022-10-17 17:39:35,046 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2022-10-17 17:39:35,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-10-17 17:39:35,047 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2022-10-17 17:39:35,047 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2022-10-17 17:39:35,047 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-10-17 17:39:35,047 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-10-17 17:39:35,047 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~TO~VOID [2022-10-17 17:39:35,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~TO~VOID [2022-10-17 17:39:35,515 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:39:35,518 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:39:41,433 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:39:41,448 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:39:41,448 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-17 17:39:41,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:39:41 BoogieIcfgContainer [2022-10-17 17:39:41,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:39:41,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 17:39:41,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 17:39:41,457 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 17:39:41,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 05:39:32" (1/3) ... [2022-10-17 17:39:41,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d8aff30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:39:41, skipping insertion in model container [2022-10-17 17:39:41,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:39:34" (2/3) ... [2022-10-17 17:39:41,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d8aff30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:39:41, skipping insertion in model container [2022-10-17 17:39:41,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:39:41" (3/3) ... [2022-10-17 17:39:41,461 INFO L112 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_outb_p.i [2022-10-17 17:39:41,480 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 17:39:41,480 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 205 error locations. [2022-10-17 17:39:41,559 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 17:39:41,567 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;@652faeab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 17:39:41,567 INFO L358 AbstractCegarLoop]: Starting to check reachability of 205 error locations. [2022-10-17 17:39:41,577 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 17:39:41,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 17:39:41,585 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:39:41,586 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-17 17:39:41,587 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 17:39:41,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:39:41,596 INFO L85 PathProgramCache]: Analyzing trace with hash 333908101, now seen corresponding path program 1 times [2022-10-17 17:39:41,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-10-17 17:39:41,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [637059463] [2022-10-17 17:39:41,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:39:41,638 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 17:39:41,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/mathsat [2022-10-17 17:39:41,642 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 17:39:41,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-10-17 17:39:42,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:39:42,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 17:39:42,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:39:42,291 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 17:39:42,291 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 17:39:42,292 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-10-17 17:39:42,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [637059463] [2022-10-17 17:39:42,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [637059463] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:39:42,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:39:42,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:39:42,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110437018] [2022-10-17 17:39:42,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:39:42,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 17:39:42,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-10-17 17:39:42,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 17:39:42,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 17:39:42,334 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 17:39:44,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 17:39:46,392 WARN L539 Checker$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 17:39:49,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:39:49,890 INFO L93 Difference]: Finished difference Result 1204 states and 1443 transitions. [2022-10-17 17:39:49,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 17:39:49,898 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 17:39:49,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:39:49,927 INFO L225 Difference]: With dead ends: 1204 [2022-10-17 17:39:49,927 INFO L226 Difference]: Without dead ends: 1200 [2022-10-17 17:39:49,929 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 17:39:49,933 INFO L413 NwaCegarLoop]: 759 mSDtfsCounter, 687 mSDsluCounter, 1725 mSDsCounter, 0 mSdLazyCounter, 1106 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s 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, 7.4s IncrementalHoareTripleChecker+Time [2022-10-17 17:39:49,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [688 Valid, 2484 Invalid, 1112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1106 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2022-10-17 17:39:49,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1200 states. [2022-10-17 17:39:50,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1200 to 987. [2022-10-17 17:39:50,124 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 17:39:50,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 987 states to 987 states and 1347 transitions. [2022-10-17 17:39:50,139 INFO L78 Accepts]: Start accepts. Automaton has 987 states and 1347 transitions. Word has length 5 [2022-10-17 17:39:50,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:39:50,140 INFO L495 AbstractCegarLoop]: Abstraction has 987 states and 1347 transitions. [2022-10-17 17:39:50,145 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 17:39:50,145 INFO L276 IsEmpty]: Start isEmpty. Operand 987 states and 1347 transitions. [2022-10-17 17:39:50,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 17:39:50,146 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:39:50,146 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-17 17:39:50,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-10-17 17:39:50,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 [2022-10-17 17:39:50,363 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 17:39:50,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:39:50,363 INFO L85 PathProgramCache]: Analyzing trace with hash 333908102, now seen corresponding path program 1 times [2022-10-17 17:39:50,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-10-17 17:39:50,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [506158378] [2022-10-17 17:39:50,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:39:50,364 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 17:39:50,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/mathsat [2022-10-17 17:39:50,365 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 17:39:50,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-10-17 17:39:50,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:39:50,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 17:39:50,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:39:50,912 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 17:39:50,912 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 17:39:50,912 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-10-17 17:39:50,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [506158378] [2022-10-17 17:39:50,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [506158378] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:39:50,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:39:50,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:39:50,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451870610] [2022-10-17 17:39:50,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:39:50,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 17:39:50,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-10-17 17:39:50,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 17:39:50,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 17:39:50,915 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 17:39:52,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 17:39:54,957 WARN L539 Checker$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 17:39:58,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:39:58,376 INFO L93 Difference]: Finished difference Result 1119 states and 1439 transitions. [2022-10-17 17:39:58,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 17:39:58,377 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 17:39:58,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:39:58,386 INFO L225 Difference]: With dead ends: 1119 [2022-10-17 17:39:58,386 INFO L226 Difference]: Without dead ends: 1119 [2022-10-17 17:39:58,386 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 17:39:58,387 INFO L413 NwaCegarLoop]: 840 mSDtfsCounter, 268 mSDsluCounter, 1790 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 2630 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-10-17 17:39:58,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 2630 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 850 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2022-10-17 17:39:58,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1119 states. [2022-10-17 17:39:58,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1119 to 1060. [2022-10-17 17:39:58,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1060 states, 635 states have (on average 1.7653543307086614) internal successors, (1121), 856 states have internal predecessors, (1121), 157 states have call successors, (157), 63 states have call predecessors, (157), 63 states have return successors, (157), 150 states have call predecessors, (157), 157 states have call successors, (157) [2022-10-17 17:39:58,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 1435 transitions. [2022-10-17 17:39:58,439 INFO L78 Accepts]: Start accepts. Automaton has 1060 states and 1435 transitions. Word has length 5 [2022-10-17 17:39:58,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:39:58,440 INFO L495 AbstractCegarLoop]: Abstraction has 1060 states and 1435 transitions. [2022-10-17 17:39:58,440 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 17:39:58,440 INFO L276 IsEmpty]: Start isEmpty. Operand 1060 states and 1435 transitions. [2022-10-17 17:39:58,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 17:39:58,441 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:39:58,441 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:39:58,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-10-17 17:39:58,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 [2022-10-17 17:39:58,657 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2022-10-17 17:39:58,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:39:58,657 INFO L85 PathProgramCache]: Analyzing trace with hash -863937403, now seen corresponding path program 1 times [2022-10-17 17:39:58,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-10-17 17:39:58,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1310091967] [2022-10-17 17:39:58,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:39:58,659 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 17:39:58,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/mathsat [2022-10-17 17:39:58,663 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 17:39:58,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78273ef4-7889-431f-bafc-0498cceb421b/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process