./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2b4109a3-8962-4388-b70d-6edc97f1300a/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2b4109a3-8962-4388-b70d-6edc97f1300a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2b4109a3-8962-4388-b70d-6edc97f1300a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2b4109a3-8962-4388-b70d-6edc97f1300a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i -s /tmp/vcloud-vcloud-master/worker/run_dir_2b4109a3-8962-4388-b70d-6edc97f1300a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2b4109a3-8962-4388-b70d-6edc97f1300a/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 84f62959dc20df3dcecaea8b03619fc02cb1358b ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2b4109a3-8962-4388-b70d-6edc97f1300a/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2b4109a3-8962-4388-b70d-6edc97f1300a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2b4109a3-8962-4388-b70d-6edc97f1300a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2b4109a3-8962-4388-b70d-6edc97f1300a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i -s /tmp/vcloud-vcloud-master/worker/run_dir_2b4109a3-8962-4388-b70d-6edc97f1300a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2b4109a3-8962-4388-b70d-6edc97f1300a/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 84f62959dc20df3dcecaea8b03619fc02cb1358b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:29:29,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:29:29,333 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:29:29,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:29:29,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:29:29,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:29:29,419 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:29:29,426 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:29:29,428 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:29:29,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:29:29,438 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:29:29,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:29:29,441 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:29:29,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:29:29,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:29:29,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:29:29,450 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:29:29,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:29:29,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:29:29,465 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:29:29,467 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:29:29,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:29:29,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:29:29,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:29:29,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:29:29,481 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:29:29,482 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:29:29,484 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:29:29,485 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:29:29,486 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:29:29,487 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:29:29,488 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:29:29,490 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:29:29,491 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:29:29,493 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:29:29,493 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:29:29,494 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:29:29,495 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:29:29,495 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:29:29,497 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:29:29,499 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:29:29,502 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2b4109a3-8962-4388-b70d-6edc97f1300a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:29:29,554 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:29:29,554 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:29:29,556 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:29:29,556 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:29:29,556 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:29:29,557 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:29:29,557 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:29:29,557 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:29:29,557 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:29:29,558 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:29:29,559 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:29:29,559 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:29:29,560 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:29:29,560 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:29:29,560 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:29:29,561 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:29:29,562 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:29:29,562 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:29:29,562 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:29:29,562 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:29:29,563 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:29:29,563 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:29:29,563 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:29:29,564 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:29:29,564 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:29:29,564 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:29:29,565 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:29:29,565 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:29:29,565 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:29:29,567 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:29:29,567 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:29:29,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:29:29,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:29:29,569 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:29:29,569 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:29:29,569 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:29:29,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:29:29,570 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:29:29,570 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:29:29,570 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:29:29,571 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_2b4109a3-8962-4388-b70d-6edc97f1300a/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2b4109a3-8962-4388-b70d-6edc97f1300a/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 84f62959dc20df3dcecaea8b03619fc02cb1358b [2020-11-28 07:29:29,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:29:29,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:29:29,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:29:29,910 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:29:29,911 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:29:29,912 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2b4109a3-8962-4388-b70d-6edc97f1300a/bin/utaipan/../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i [2020-11-28 07:29:30,005 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2b4109a3-8962-4388-b70d-6edc97f1300a/bin/utaipan/data/f1ff04bd0/790af88163414658930c60a452a5387f/FLAGe3b878ae0 [2020-11-28 07:29:30,548 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:29:30,552 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2b4109a3-8962-4388-b70d-6edc97f1300a/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i [2020-11-28 07:29:30,572 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2b4109a3-8962-4388-b70d-6edc97f1300a/bin/utaipan/data/f1ff04bd0/790af88163414658930c60a452a5387f/FLAGe3b878ae0 [2020-11-28 07:29:30,846 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2b4109a3-8962-4388-b70d-6edc97f1300a/bin/utaipan/data/f1ff04bd0/790af88163414658930c60a452a5387f [2020-11-28 07:29:30,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:29:30,851 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:29:30,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:29:30,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:29:30,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:29:30,857 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:29:30" (1/1) ... [2020-11-28 07:29:30,859 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60f2866f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:29:30, skipping insertion in model container [2020-11-28 07:29:30,859 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:29:30" (1/1) ... [2020-11-28 07:29:30,867 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:29:30,908 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:29:31,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:29:31,337 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-11-28 07:29:31,338 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@21624a49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:29:31, skipping insertion in model container [2020-11-28 07:29:31,339 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:29:31,340 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-28 07:29:31,342 INFO L168 Benchmark]: Toolchain (without parser) took 489.97 ms. Allocated memory is still 102.8 MB. Free memory was 66.0 MB in the beginning and 76.4 MB in the end (delta: -10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:29:31,344 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 102.8 MB. Free memory was 75.2 MB in the beginning and 75.2 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:29:31,346 INFO L168 Benchmark]: CACSL2BoogieTranslator took 487.02 ms. Allocated memory is still 102.8 MB. Free memory was 65.8 MB in the beginning and 76.4 MB in the end (delta: -10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:29:31,348 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 102.8 MB. Free memory was 75.2 MB in the beginning and 75.2 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 487.02 ms. Allocated memory is still 102.8 MB. Free memory was 65.8 MB in the beginning and 76.4 MB in the end (delta: -10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 638]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:29:33,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:29:33,644 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:29:33,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:29:33,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:29:33,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:29:33,703 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:29:33,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:29:33,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:29:33,719 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:29:33,721 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:29:33,726 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:29:33,727 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:29:33,735 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:29:33,736 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:29:33,738 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:29:33,739 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:29:33,740 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:29:33,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:29:33,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:29:33,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:29:33,749 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:29:33,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:29:33,762 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:29:33,766 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:29:33,766 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:29:33,766 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:29:33,767 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:29:33,768 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:29:33,769 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:29:33,770 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:29:33,775 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:29:33,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:29:33,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:29:33,779 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:29:33,779 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:29:33,780 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:29:33,781 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:29:33,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:29:33,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:29:33,784 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:29:33,784 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2b4109a3-8962-4388-b70d-6edc97f1300a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-28 07:29:33,827 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:29:33,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:29:33,828 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:29:33,829 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:29:33,829 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:29:33,829 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:29:33,829 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:29:33,829 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:29:33,830 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:29:33,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:29:33,831 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:29:33,831 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:29:33,831 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:29:33,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:29:33,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:29:33,832 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:29:33,832 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:29:33,832 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 07:29:33,832 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 07:29:33,832 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:29:33,833 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:29:33,833 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:29:33,833 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:29:33,833 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:29:33,833 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 07:29:33,834 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:29:33,834 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:29:33,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:29:33,846 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:29:33,846 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:29:33,847 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:29:33,847 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-28 07:29:33,847 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 07:29:33,847 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:29:33,847 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:29:33,848 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:29:33,849 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-vcloud-master/worker/run_dir_2b4109a3-8962-4388-b70d-6edc97f1300a/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2b4109a3-8962-4388-b70d-6edc97f1300a/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 84f62959dc20df3dcecaea8b03619fc02cb1358b [2020-11-28 07:29:34,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:29:34,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:29:34,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:29:34,308 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:29:34,311 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:29:34,312 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2b4109a3-8962-4388-b70d-6edc97f1300a/bin/utaipan/../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i [2020-11-28 07:29:34,403 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2b4109a3-8962-4388-b70d-6edc97f1300a/bin/utaipan/data/58e49e3fb/13102a76d0304a6f87b6d469c7916203/FLAGf2c50ba18 [2020-11-28 07:29:35,096 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:29:35,097 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2b4109a3-8962-4388-b70d-6edc97f1300a/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i [2020-11-28 07:29:35,119 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2b4109a3-8962-4388-b70d-6edc97f1300a/bin/utaipan/data/58e49e3fb/13102a76d0304a6f87b6d469c7916203/FLAGf2c50ba18 [2020-11-28 07:29:35,304 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2b4109a3-8962-4388-b70d-6edc97f1300a/bin/utaipan/data/58e49e3fb/13102a76d0304a6f87b6d469c7916203 [2020-11-28 07:29:35,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:29:35,308 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:29:35,309 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:29:35,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:29:35,313 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:29:35,314 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:29:35" (1/1) ... [2020-11-28 07:29:35,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70bcdb79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:29:35, skipping insertion in model container [2020-11-28 07:29:35,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:29:35" (1/1) ... [2020-11-28 07:29:35,329 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:29:35,398 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:29:35,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:29:35,795 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-28 07:29:35,804 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:29:35,846 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:29:35,848 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:29:35,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:29:36,013 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:29:36,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:29:36 WrapperNode [2020-11-28 07:29:36,015 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:29:36,016 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:29:36,017 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:29:36,017 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:29:36,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:29:36" (1/1) ... [2020-11-28 07:29:36,057 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:29:36" (1/1) ... [2020-11-28 07:29:36,099 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:29:36,100 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:29:36,100 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:29:36,100 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:29:36,115 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:29:36" (1/1) ... [2020-11-28 07:29:36,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:29:36" (1/1) ... [2020-11-28 07:29:36,140 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:29:36" (1/1) ... [2020-11-28 07:29:36,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:29:36" (1/1) ... [2020-11-28 07:29:36,193 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:29:36" (1/1) ... [2020-11-28 07:29:36,200 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:29:36" (1/1) ... [2020-11-28 07:29:36,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:29:36" (1/1) ... [2020-11-28 07:29:36,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:29:36,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:29:36,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:29:36,213 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:29:36,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:29:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2b4109a3-8962-4388-b70d-6edc97f1300a/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:29:36,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 07:29:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-28 07:29:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:29:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-28 07:29:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 07:29:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-28 07:29:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 07:29:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:29:36,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:29:37,698 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:29:37,702 INFO L298 CfgBuilder]: Removed 92 assume(true) statements. [2020-11-28 07:29:37,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:29:37 BoogieIcfgContainer [2020-11-28 07:29:37,705 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:29:37,708 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:29:37,708 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:29:37,711 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:29:37,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:29:35" (1/3) ... [2020-11-28 07:29:37,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ade092b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:29:37, skipping insertion in model container [2020-11-28 07:29:37,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:29:36" (2/3) ... [2020-11-28 07:29:37,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ade092b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:29:37, skipping insertion in model container [2020-11-28 07:29:37,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:29:37" (3/3) ... [2020-11-28 07:29:37,715 INFO L111 eAbstractionObserver]: Analyzing ICFG test_mutex_double_lock.i [2020-11-28 07:29:37,726 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:29:37,731 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-28 07:29:37,743 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-28 07:29:37,768 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:29:37,768 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:29:37,768 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:29:37,768 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:29:37,769 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:29:37,769 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:29:37,769 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:29:37,769 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:29:37,782 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2020-11-28 07:29:37,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 07:29:37,787 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:29:37,788 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:29:37,788 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:29:37,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:29:37,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1790047856, now seen corresponding path program 1 times [2020-11-28 07:29:37,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:29:37,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [821386688] [2020-11-28 07:29:37,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2b4109a3-8962-4388-b70d-6edc97f1300a/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-28 07:29:37,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:29:37,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-28 07:29:37,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:29:38,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:29:38,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:29:38,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:29:38,016 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [821386688] [2020-11-28 07:29:38,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:29:38,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-28 07:29:38,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433802346] [2020-11-28 07:29:38,021 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 07:29:38,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:29:38,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 07:29:38,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:29:38,047 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 2 states. [2020-11-28 07:29:38,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:29:38,072 INFO L93 Difference]: Finished difference Result 187 states and 264 transitions. [2020-11-28 07:29:38,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 07:29:38,073 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2020-11-28 07:29:38,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:29:38,082 INFO L225 Difference]: With dead ends: 187 [2020-11-28 07:29:38,082 INFO L226 Difference]: Without dead ends: 89 [2020-11-28 07:29:38,085 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:29:38,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-11-28 07:29:38,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2020-11-28 07:29:38,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-11-28 07:29:38,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 106 transitions. [2020-11-28 07:29:38,122 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 106 transitions. Word has length 15 [2020-11-28 07:29:38,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:29:38,123 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 106 transitions. [2020-11-28 07:29:38,123 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 07:29:38,123 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 106 transitions. [2020-11-28 07:29:38,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 07:29:38,124 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:29:38,124 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:29:38,341 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 07:29:38,342 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:29:38,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:29:38,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1166744709, now seen corresponding path program 1 times [2020-11-28 07:29:38,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:29:38,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1347193396] [2020-11-28 07:29:38,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2b4109a3-8962-4388-b70d-6edc97f1300a/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-28 07:29:38,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:29:38,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 07:29:38,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:29:38,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:29:38,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:29:38,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:29:38,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1347193396] [2020-11-28 07:29:38,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:29:38,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-28 07:29:38,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215387672] [2020-11-28 07:29:38,577 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:29:38,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:29:38,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:29:38,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:29:38,586 INFO L87 Difference]: Start difference. First operand 89 states and 106 transitions. Second operand 4 states. [2020-11-28 07:29:38,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:29:38,888 INFO L93 Difference]: Finished difference Result 145 states and 167 transitions. [2020-11-28 07:29:38,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 07:29:38,889 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-11-28 07:29:38,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:29:38,891 INFO L225 Difference]: With dead ends: 145 [2020-11-28 07:29:38,891 INFO L226 Difference]: Without dead ends: 139 [2020-11-28 07:29:38,892 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 07:29:38,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-11-28 07:29:38,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 93. [2020-11-28 07:29:38,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-11-28 07:29:38,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 110 transitions. [2020-11-28 07:29:38,905 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 110 transitions. Word has length 15 [2020-11-28 07:29:38,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:29:38,906 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 110 transitions. [2020-11-28 07:29:38,906 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:29:38,906 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 110 transitions. [2020-11-28 07:29:38,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 07:29:38,907 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:29:38,907 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:29:39,114 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-28 07:29:39,114 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:29:39,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:29:39,115 INFO L82 PathProgramCache]: Analyzing trace with hash -1116874575, now seen corresponding path program 1 times [2020-11-28 07:29:39,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:29:39,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1817734459] [2020-11-28 07:29:39,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2b4109a3-8962-4388-b70d-6edc97f1300a/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-28 07:29:39,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:29:39,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-28 07:29:39,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:29:39,381 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2020-11-28 07:29:39,382 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 07:29:39,401 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:29:39,411 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:29:39,411 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 10 [2020-11-28 07:29:39,412 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-28 07:29:39,421 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 07:29:39,421 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-28 07:29:39,421 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:34, output treesize:10 [2020-11-28 07:29:39,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:29:39,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:29:39,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:29:39,492 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1817734459] [2020-11-28 07:29:39,493 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:29:39,493 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-28 07:29:39,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935577913] [2020-11-28 07:29:39,493 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 07:29:39,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:29:39,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 07:29:39,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 07:29:39,495 INFO L87 Difference]: Start difference. First operand 93 states and 110 transitions. Second operand 6 states. [2020-11-28 07:29:41,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:29:41,248 INFO L93 Difference]: Finished difference Result 270 states and 317 transitions. [2020-11-28 07:29:41,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 07:29:41,259 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-28 07:29:41,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:29:41,262 INFO L225 Difference]: With dead ends: 270 [2020-11-28 07:29:41,263 INFO L226 Difference]: Without dead ends: 186 [2020-11-28 07:29:41,264 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-28 07:29:41,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2020-11-28 07:29:41,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 105. [2020-11-28 07:29:41,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-11-28 07:29:41,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 122 transitions. [2020-11-28 07:29:41,300 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 122 transitions. Word has length 15 [2020-11-28 07:29:41,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:29:41,301 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 122 transitions. [2020-11-28 07:29:41,301 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 07:29:41,301 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 122 transitions. [2020-11-28 07:29:41,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-28 07:29:41,302 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:29:41,302 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:29:41,537 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-28 07:29:41,537 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:29:41,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:29:41,538 INFO L82 PathProgramCache]: Analyzing trace with hash -293940095, now seen corresponding path program 1 times [2020-11-28 07:29:41,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:29:41,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1749147809] [2020-11-28 07:29:41,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2b4109a3-8962-4388-b70d-6edc97f1300a/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-28 07:29:41,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:29:41,818 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:29:41,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:29:41,961 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:29:42,051 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-28 07:29:42,051 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 07:29:42,271 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-28 07:29:42,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:29:42 BoogieIcfgContainer [2020-11-28 07:29:42,348 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:29:42,349 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:29:42,349 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:29:42,349 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:29:42,350 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:29:37" (3/4) ... [2020-11-28 07:29:42,352 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 07:29:42,412 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2b4109a3-8962-4388-b70d-6edc97f1300a/bin/utaipan/witness.graphml [2020-11-28 07:29:42,412 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:29:42,414 INFO L168 Benchmark]: Toolchain (without parser) took 7105.31 ms. Allocated memory was 65.0 MB in the beginning and 98.6 MB in the end (delta: 33.6 MB). Free memory was 44.2 MB in the beginning and 58.7 MB in the end (delta: -14.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. [2020-11-28 07:29:42,414 INFO L168 Benchmark]: CDTParser took 0.71 ms. Allocated memory is still 65.0 MB. Free memory is still 47.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:29:42,414 INFO L168 Benchmark]: CACSL2BoogieTranslator took 706.31 ms. Allocated memory is still 65.0 MB. Free memory was 44.0 MB in the beginning and 43.4 MB in the end (delta: 584.9 kB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. [2020-11-28 07:29:42,415 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.91 ms. Allocated memory is still 65.0 MB. Free memory was 43.4 MB in the beginning and 40.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 07:29:42,416 INFO L168 Benchmark]: Boogie Preprocessor took 111.95 ms. Allocated memory is still 65.0 MB. Free memory was 40.0 MB in the beginning and 36.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:29:42,416 INFO L168 Benchmark]: RCFGBuilder took 1492.56 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 36.4 MB in the beginning and 44.2 MB in the end (delta: -7.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 16.1 GB. [2020-11-28 07:29:42,417 INFO L168 Benchmark]: TraceAbstraction took 4640.63 ms. Allocated memory was 79.7 MB in the beginning and 98.6 MB in the end (delta: 18.9 MB). Free memory was 44.2 MB in the beginning and 63.7 MB in the end (delta: -19.5 MB). Peak memory consumption was 24.6 MB. Max. memory is 16.1 GB. [2020-11-28 07:29:42,417 INFO L168 Benchmark]: Witness Printer took 63.24 ms. Allocated memory is still 98.6 MB. Free memory was 63.7 MB in the beginning and 58.7 MB in the end (delta: 5.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-28 07:29:42,421 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71 ms. Allocated memory is still 65.0 MB. Free memory is still 47.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 706.31 ms. Allocated memory is still 65.0 MB. Free memory was 44.0 MB in the beginning and 43.4 MB in the end (delta: 584.9 kB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 82.91 ms. Allocated memory is still 65.0 MB. Free memory was 43.4 MB in the beginning and 40.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 111.95 ms. Allocated memory is still 65.0 MB. Free memory was 40.0 MB in the beginning and 36.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1492.56 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 36.4 MB in the beginning and 44.2 MB in the end (delta: -7.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4640.63 ms. Allocated memory was 79.7 MB in the beginning and 98.6 MB in the end (delta: 18.9 MB). Free memory was 44.2 MB in the beginning and 63.7 MB in the end (delta: -19.5 MB). Peak memory consumption was 24.6 MB. Max. memory is 16.1 GB. * Witness Printer took 63.24 ms. Allocated memory is still 98.6 MB. Free memory was 63.7 MB in the beginning and 58.7 MB in the end (delta: 5.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 562]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L665] struct ldv_list_head mutexes = { &(mutexes), &(mutexes) }; VAL [mutexes={2147483647:0}] [L576] void *ptr = malloc(size); [L565] COND FALSE !(!cond) VAL [mutexes={2147483647:0}] [L578] return ptr; VAL [mutexes={2147483647:0}] [L682] struct mutex *m1 = ldv_successful_malloc(sizeof(struct mutex)); [L576] void *ptr = malloc(size); [L565] COND FALSE !(!cond) VAL [mutexes={2147483647:0}] [L578] return ptr; VAL [mutexes={2147483647:0}] [L683] struct mutex *m2 = ldv_successful_malloc(sizeof(struct mutex)); [L654] struct ldv_list_element *m; [L655] EXPR (s)->next [L655] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L655] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [mutexes={2147483647:0}] [L655] COND FALSE !(&m->list != (s)) VAL [mutexes={2147483647:0}] [L660] return 0; VAL [mutexes={2147483647:0}] [L669] COND FALSE !(ldv_is_in_set(m, &mutexes)) [L654] struct ldv_list_element *m; [L655] EXPR (s)->next [L655] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L655] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [mutexes={2147483647:0}] [L655] COND FALSE !(&m->list != (s)) VAL [mutexes={2147483647:0}] [L660] return 0; VAL [mutexes={2147483647:0}] [L636] COND TRUE !ldv_is_in_set(new, s) [L637] struct ldv_list_element *le; [L576] void *ptr = malloc(size); [L565] COND FALSE !(!cond) VAL [mutexes={2147483647:0}] [L578] return ptr; VAL [mutexes={2147483647:0}] [L638] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L639] le->e = new [L608] head->next [L596] next->prev = new [L597] new->next = next [L598] new->prev = prev [L599] prev->next = new VAL [mutexes={2147483647:0}] [L654] struct ldv_list_element *m; [L655] EXPR (s)->next [L655] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L655] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [mutexes={2147483647:0}] [L655] COND TRUE &m->list != (s) [L656] EXPR m->e VAL [mutexes={2147483647:0}] [L656] COND TRUE m->e == e [L657] return 1; VAL [mutexes={2147483647:0}] [L669] COND TRUE ldv_is_in_set(m, &mutexes) [L562] COND FALSE !(0) VAL [mutexes={2147483647:0}] [L562] __assert_fail ("0", "model/ldv.h", 3, __extension__ __PRETTY_FUNCTION__) VAL [mutexes={2147483647:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 98 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 288 SDtfs, 220 SDslu, 445 SDs, 0 SdLazy, 146 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 127 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 5026 SizeOfPredicates, 13 NumberOfNonLiveVariables, 254 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...