./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e89bfb3-0bf9-48d0-b124-4028b3a53533/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e89bfb3-0bf9-48d0-b124-4028b3a53533/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e89bfb3-0bf9-48d0-b124-4028b3a53533/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e89bfb3-0bf9-48d0-b124-4028b3a53533/bin/utaipan-ByfvJB40ur/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e89bfb3-0bf9-48d0-b124-4028b3a53533/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e89bfb3-0bf9-48d0-b124-4028b3a53533/bin/utaipan-ByfvJB40ur --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 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c --- 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-38b53e6 [2022-11-26 00:27:48,893 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:27:48,895 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:27:48,916 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:27:48,917 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:27:48,918 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:27:48,919 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:27:48,921 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:27:48,923 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:27:48,924 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:27:48,926 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:27:48,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:27:48,927 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:27:48,929 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:27:48,930 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:27:48,931 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:27:48,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:27:48,933 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:27:48,935 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:27:48,937 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:27:48,939 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:27:48,940 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:27:48,942 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:27:48,943 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:27:48,947 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:27:48,947 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:27:48,948 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:27:48,949 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:27:48,949 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:27:48,953 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:27:48,953 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:27:48,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:27:48,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:27:48,959 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:27:48,961 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:27:48,961 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:27:48,962 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:27:48,962 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:27:48,962 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:27:48,963 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:27:48,964 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:27:48,965 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e89bfb3-0bf9-48d0-b124-4028b3a53533/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-26 00:27:48,987 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:27:48,987 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:27:48,988 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:27:48,988 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:27:48,989 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:27:48,989 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:27:48,989 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:27:48,990 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:27:48,990 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:27:48,990 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:27:48,991 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:27:48,991 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:27:48,991 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:27:48,992 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:27:48,992 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:27:48,992 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:27:48,992 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:27:48,993 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:27:48,993 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-26 00:27:48,994 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-26 00:27:48,994 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:27:48,994 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:27:48,994 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:27:48,995 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:27:48,995 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:27:48,995 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:27:48,995 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-26 00:27:48,996 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-26 00:27:48,996 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-26 00:27:48,996 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:27:48,996 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 00:27:48,997 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:27:48,997 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:27:48,997 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:27:48,997 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:27:48,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:27:48,998 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:27:48,998 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:27:48,998 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:27:48,998 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:27:48,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:27:49,006 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:27:49,006 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_3e89bfb3-0bf9-48d0-b124-4028b3a53533/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e89bfb3-0bf9-48d0-b124-4028b3a53533/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c [2022-11-26 00:27:49,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:27:49,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:27:49,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:27:49,307 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:27:49,307 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:27:49,308 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e89bfb3-0bf9-48d0-b124-4028b3a53533/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i [2022-11-26 00:27:52,415 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:27:52,722 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:27:52,723 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e89bfb3-0bf9-48d0-b124-4028b3a53533/sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i [2022-11-26 00:27:52,738 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e89bfb3-0bf9-48d0-b124-4028b3a53533/bin/utaipan-ByfvJB40ur/data/4dbe12164/977f5eea7a55458cb713a707e32f67b2/FLAG41754b139 [2022-11-26 00:27:52,753 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e89bfb3-0bf9-48d0-b124-4028b3a53533/bin/utaipan-ByfvJB40ur/data/4dbe12164/977f5eea7a55458cb713a707e32f67b2 [2022-11-26 00:27:52,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:27:52,757 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:27:52,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:27:52,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:27:52,768 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:27:52,769 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:27:52" (1/1) ... [2022-11-26 00:27:52,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@475acd99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:27:52, skipping insertion in model container [2022-11-26 00:27:52,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:27:52" (1/1) ... [2022-11-26 00:27:52,779 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:27:52,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:27:53,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:27:53,524 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:27:53,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:27:53,668 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:27:53,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:27:53 WrapperNode [2022-11-26 00:27:53,669 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:27:53,670 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:27:53,670 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:27:53,671 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:27:53,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:27:53" (1/1) ... [2022-11-26 00:27:53,705 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:27:53" (1/1) ... [2022-11-26 00:27:53,751 INFO L138 Inliner]: procedures = 368, calls = 29, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 80 [2022-11-26 00:27:53,759 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:27:53,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:27:53,761 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:27:53,761 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:27:53,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:27:53" (1/1) ... [2022-11-26 00:27:53,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:27:53" (1/1) ... [2022-11-26 00:27:53,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:27:53" (1/1) ... [2022-11-26 00:27:53,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:27:53" (1/1) ... [2022-11-26 00:27:53,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:27:53" (1/1) ... [2022-11-26 00:27:53,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:27:53" (1/1) ... [2022-11-26 00:27:53,786 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:27:53" (1/1) ... [2022-11-26 00:27:53,788 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:27:53" (1/1) ... [2022-11-26 00:27:53,791 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:27:53,791 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:27:53,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:27:53,792 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:27:53,793 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:27:53" (1/1) ... [2022-11-26 00:27:53,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:27:53,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e89bfb3-0bf9-48d0-b124-4028b3a53533/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:27:53,833 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e89bfb3-0bf9-48d0-b124-4028b3a53533/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:27:53,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e89bfb3-0bf9-48d0-b124-4028b3a53533/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:27:53,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:27:53,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:27:53,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:27:53,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:27:53,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:27:53,869 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-26 00:27:53,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:27:53,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:27:53,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:27:53,869 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-26 00:27:53,869 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-26 00:27:53,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:27:53,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:27:53,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:27:53,871 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-26 00:27:54,021 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:27:54,023 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:27:54,372 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:27:54,380 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:27:54,381 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:27:54,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:27:54 BoogieIcfgContainer [2022-11-26 00:27:54,383 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:27:54,385 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:27:54,385 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:27:54,391 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:27:54,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:27:52" (1/3) ... [2022-11-26 00:27:54,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23051b67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:27:54, skipping insertion in model container [2022-11-26 00:27:54,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:27:53" (2/3) ... [2022-11-26 00:27:54,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23051b67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:27:54, skipping insertion in model container [2022-11-26 00:27:54,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:27:54" (3/3) ... [2022-11-26 00:27:54,398 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_02-list_nr.i [2022-11-26 00:27:54,419 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:27:54,419 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2022-11-26 00:27:54,420 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:27:54,568 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-26 00:27:54,623 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:27:54,651 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 128 places, 124 transitions, 253 flow [2022-11-26 00:27:54,660 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 128 places, 124 transitions, 253 flow [2022-11-26 00:27:54,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 124 transitions, 253 flow [2022-11-26 00:27:54,769 INFO L130 PetriNetUnfolder]: 0/123 cut-off events. [2022-11-26 00:27:54,770 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-26 00:27:54,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 123 events. 0/123 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 142 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-26 00:27:54,776 INFO L119 LiptonReduction]: Number of co-enabled transitions 1584 [2022-11-26 00:28:12,255 WARN L233 SmtUtils]: Spent 6.80s on a formula simplification. DAG size of input: 189 DAG size of output: 180 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:28:26,095 WARN L233 SmtUtils]: Spent 5.85s on a formula simplification. DAG size of input: 210 DAG size of output: 208 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:28:33,197 INFO L134 LiptonReduction]: Checked pairs total: 6355 [2022-11-26 00:28:33,197 INFO L136 LiptonReduction]: Total number of compositions: 151 [2022-11-26 00:28:33,205 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 49 places, 45 transitions, 95 flow [2022-11-26 00:28:33,252 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 257 states, 180 states have (on average 2.6) internal successors, (468), 256 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:33,277 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:28:33,288 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;@10c0c7c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:28:33,288 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2022-11-26 00:28:33,294 INFO L276 IsEmpty]: Start isEmpty. Operand has 257 states, 180 states have (on average 2.6) internal successors, (468), 256 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:33,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-26 00:28:33,310 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:28:33,311 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-26 00:28:33,311 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-11-26 00:28:33,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:28:33,329 INFO L85 PathProgramCache]: Analyzing trace with hash 455, now seen corresponding path program 1 times [2022-11-26 00:28:33,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:28:33,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078652819] [2022-11-26 00:28:33,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:33,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:28:33,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:28:33,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:28:33,497 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:28:33,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078652819] [2022-11-26 00:28:33,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078652819] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:28:33,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:28:33,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-26 00:28:33,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893880567] [2022-11-26 00:28:33,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:28:33,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:28:33,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:28:33,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:28:33,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:28:33,548 INFO L87 Difference]: Start difference. First operand has 257 states, 180 states have (on average 2.6) internal successors, (468), 256 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:33,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:28:33,678 INFO L93 Difference]: Finished difference Result 219 states and 406 transitions. [2022-11-26 00:28:33,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:28:33,681 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-26 00:28:33,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:28:33,705 INFO L225 Difference]: With dead ends: 219 [2022-11-26 00:28:33,707 INFO L226 Difference]: Without dead ends: 219 [2022-11-26 00:28:33,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:28:33,713 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:28:33,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:28:33,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-11-26 00:28:33,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2022-11-26 00:28:33,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 166 states have (on average 2.4457831325301207) internal successors, (406), 218 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:33,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 406 transitions. [2022-11-26 00:28:33,798 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 406 transitions. Word has length 1 [2022-11-26 00:28:33,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:28:33,799 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 406 transitions. [2022-11-26 00:28:33,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:33,799 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 406 transitions. [2022-11-26 00:28:33,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-26 00:28:33,801 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:28:33,802 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-26 00:28:33,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:28:33,802 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-11-26 00:28:33,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:28:33,804 INFO L85 PathProgramCache]: Analyzing trace with hash 451277, now seen corresponding path program 1 times [2022-11-26 00:28:33,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:28:33,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612862668] [2022-11-26 00:28:33,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:33,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:28:33,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:28:34,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:28:34,154 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:28:34,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612862668] [2022-11-26 00:28:34,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612862668] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:28:34,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:28:34,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:28:34,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676432063] [2022-11-26 00:28:34,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:28:34,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:28:34,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:28:34,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:28:34,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:28:34,159 INFO L87 Difference]: Start difference. First operand 219 states and 406 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:34,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:28:34,286 INFO L93 Difference]: Finished difference Result 206 states and 371 transitions. [2022-11-26 00:28:34,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:28:34,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-26 00:28:34,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:28:34,289 INFO L225 Difference]: With dead ends: 206 [2022-11-26 00:28:34,289 INFO L226 Difference]: Without dead ends: 206 [2022-11-26 00:28:34,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:28:34,291 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 23 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:28:34,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 1 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:28:34,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-11-26 00:28:34,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 190. [2022-11-26 00:28:34,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 149 states have (on average 2.3624161073825505) internal successors, (352), 189 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:34,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 352 transitions. [2022-11-26 00:28:34,301 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 352 transitions. Word has length 3 [2022-11-26 00:28:34,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:28:34,302 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 352 transitions. [2022-11-26 00:28:34,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:34,302 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 352 transitions. [2022-11-26 00:28:34,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-26 00:28:34,303 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:28:34,303 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-26 00:28:34,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:28:34,303 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-11-26 00:28:34,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:28:34,304 INFO L85 PathProgramCache]: Analyzing trace with hash 13989837, now seen corresponding path program 1 times [2022-11-26 00:28:34,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:28:34,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828766638] [2022-11-26 00:28:34,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:34,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:28:34,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:28:34,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:28:34,608 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:28:34,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828766638] [2022-11-26 00:28:34,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828766638] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:28:34,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:28:34,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:28:34,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125108815] [2022-11-26 00:28:34,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:28:34,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:28:34,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:28:34,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:28:34,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:28:34,611 INFO L87 Difference]: Start difference. First operand 190 states and 352 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:34,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:28:34,756 INFO L93 Difference]: Finished difference Result 178 states and 329 transitions. [2022-11-26 00:28:34,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:28:34,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-26 00:28:34,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:28:34,758 INFO L225 Difference]: With dead ends: 178 [2022-11-26 00:28:34,758 INFO L226 Difference]: Without dead ends: 178 [2022-11-26 00:28:34,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:28:34,759 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 25 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:28:34,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 4 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:28:34,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-11-26 00:28:34,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2022-11-26 00:28:34,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 142 states have (on average 2.316901408450704) internal successors, (329), 177 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:34,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 329 transitions. [2022-11-26 00:28:34,776 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 329 transitions. Word has length 4 [2022-11-26 00:28:34,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:28:34,777 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 329 transitions. [2022-11-26 00:28:34,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:34,779 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 329 transitions. [2022-11-26 00:28:34,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-26 00:28:34,780 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:28:34,780 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-26 00:28:34,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:28:34,780 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-11-26 00:28:34,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:28:34,782 INFO L85 PathProgramCache]: Analyzing trace with hash 13989828, now seen corresponding path program 1 times [2022-11-26 00:28:34,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:28:34,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521438993] [2022-11-26 00:28:34,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:34,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:28:34,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:28:34,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:28:34,928 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:28:34,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521438993] [2022-11-26 00:28:34,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521438993] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:28:34,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:28:34,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:28:34,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281613791] [2022-11-26 00:28:34,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:28:34,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:28:34,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:28:34,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:28:34,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:28:34,935 INFO L87 Difference]: Start difference. First operand 178 states and 329 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:35,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:28:35,129 INFO L93 Difference]: Finished difference Result 218 states and 392 transitions. [2022-11-26 00:28:35,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:28:35,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-26 00:28:35,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:28:35,131 INFO L225 Difference]: With dead ends: 218 [2022-11-26 00:28:35,131 INFO L226 Difference]: Without dead ends: 218 [2022-11-26 00:28:35,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:28:35,133 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 22 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:28:35,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 4 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:28:35,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-11-26 00:28:35,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 174. [2022-11-26 00:28:35,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 141 states have (on average 2.269503546099291) internal successors, (320), 173 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:35,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 320 transitions. [2022-11-26 00:28:35,150 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 320 transitions. Word has length 4 [2022-11-26 00:28:35,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:28:35,151 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 320 transitions. [2022-11-26 00:28:35,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:35,151 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 320 transitions. [2022-11-26 00:28:35,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-26 00:28:35,152 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:28:35,152 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-26 00:28:35,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:28:35,153 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-11-26 00:28:35,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:28:35,153 INFO L85 PathProgramCache]: Analyzing trace with hash 13989384, now seen corresponding path program 1 times [2022-11-26 00:28:35,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:28:35,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416917921] [2022-11-26 00:28:35,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:35,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:28:35,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:28:35,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:28:35,664 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:28:35,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416917921] [2022-11-26 00:28:35,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416917921] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:28:35,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:28:35,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:28:35,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993016537] [2022-11-26 00:28:35,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:28:35,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:28:35,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:28:35,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:28:35,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:28:35,672 INFO L87 Difference]: Start difference. First operand 174 states and 320 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:35,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:28:35,813 INFO L93 Difference]: Finished difference Result 172 states and 316 transitions. [2022-11-26 00:28:35,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:28:35,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-26 00:28:35,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:28:35,816 INFO L225 Difference]: With dead ends: 172 [2022-11-26 00:28:35,816 INFO L226 Difference]: Without dead ends: 172 [2022-11-26 00:28:35,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:28:35,817 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:28:35,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 4 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:28:35,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-11-26 00:28:35,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2022-11-26 00:28:35,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 139 states have (on average 2.273381294964029) internal successors, (316), 171 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:35,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 316 transitions. [2022-11-26 00:28:35,834 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 316 transitions. Word has length 4 [2022-11-26 00:28:35,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:28:35,834 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 316 transitions. [2022-11-26 00:28:35,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:35,834 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 316 transitions. [2022-11-26 00:28:35,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-26 00:28:35,835 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:28:35,835 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-26 00:28:35,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:28:35,835 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-11-26 00:28:35,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:28:35,840 INFO L85 PathProgramCache]: Analyzing trace with hash 13989178, now seen corresponding path program 1 times [2022-11-26 00:28:35,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:28:35,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268863794] [2022-11-26 00:28:35,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:35,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:28:35,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:28:35,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:28:35,921 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:28:35,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268863794] [2022-11-26 00:28:35,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268863794] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:28:35,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:28:35,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:28:35,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916040794] [2022-11-26 00:28:35,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:28:35,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:28:35,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:28:35,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:28:35,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:28:35,924 INFO L87 Difference]: Start difference. First operand 172 states and 316 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:36,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:28:36,027 INFO L93 Difference]: Finished difference Result 171 states and 314 transitions. [2022-11-26 00:28:36,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:28:36,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-26 00:28:36,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:28:36,029 INFO L225 Difference]: With dead ends: 171 [2022-11-26 00:28:36,029 INFO L226 Difference]: Without dead ends: 171 [2022-11-26 00:28:36,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:28:36,030 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 8 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:28:36,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 7 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:28:36,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-11-26 00:28:36,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2022-11-26 00:28:36,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 138 states have (on average 2.2753623188405796) internal successors, (314), 170 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:36,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 314 transitions. [2022-11-26 00:28:36,037 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 314 transitions. Word has length 4 [2022-11-26 00:28:36,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:28:36,038 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 314 transitions. [2022-11-26 00:28:36,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:36,038 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 314 transitions. [2022-11-26 00:28:36,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 00:28:36,039 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:28:36,039 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 00:28:36,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 00:28:36,039 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-11-26 00:28:36,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:28:36,040 INFO L85 PathProgramCache]: Analyzing trace with hash 433685181, now seen corresponding path program 1 times [2022-11-26 00:28:36,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:28:36,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878083561] [2022-11-26 00:28:36,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:36,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:28:36,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:28:36,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:28:36,110 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:28:36,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878083561] [2022-11-26 00:28:36,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878083561] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:28:36,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:28:36,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:28:36,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215403144] [2022-11-26 00:28:36,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:28:36,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:28:36,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:28:36,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:28:36,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:28:36,113 INFO L87 Difference]: Start difference. First operand 171 states and 314 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:36,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:28:36,299 INFO L93 Difference]: Finished difference Result 203 states and 363 transitions. [2022-11-26 00:28:36,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:28:36,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-26 00:28:36,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:28:36,301 INFO L225 Difference]: With dead ends: 203 [2022-11-26 00:28:36,301 INFO L226 Difference]: Without dead ends: 203 [2022-11-26 00:28:36,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:28:36,302 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 20 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:28:36,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 5 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:28:36,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-11-26 00:28:36,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 167. [2022-11-26 00:28:36,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 137 states have (on average 2.2262773722627736) internal successors, (305), 166 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:36,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 305 transitions. [2022-11-26 00:28:36,311 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 305 transitions. Word has length 5 [2022-11-26 00:28:36,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:28:36,311 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 305 transitions. [2022-11-26 00:28:36,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:36,311 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 305 transitions. [2022-11-26 00:28:36,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 00:28:36,312 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:28:36,312 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 00:28:36,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-26 00:28:36,315 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-11-26 00:28:36,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:28:36,316 INFO L85 PathProgramCache]: Analyzing trace with hash 433684786, now seen corresponding path program 1 times [2022-11-26 00:28:36,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:28:36,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771018538] [2022-11-26 00:28:36,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:36,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:28:36,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:28:36,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:28:36,490 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:28:36,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771018538] [2022-11-26 00:28:36,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771018538] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:28:36,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:28:36,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:28:36,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711602528] [2022-11-26 00:28:36,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:28:36,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:28:36,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:28:36,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:28:36,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:28:36,493 INFO L87 Difference]: Start difference. First operand 167 states and 305 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:36,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:28:36,595 INFO L93 Difference]: Finished difference Result 145 states and 263 transitions. [2022-11-26 00:28:36,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:28:36,595 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-26 00:28:36,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:28:36,596 INFO L225 Difference]: With dead ends: 145 [2022-11-26 00:28:36,596 INFO L226 Difference]: Without dead ends: 145 [2022-11-26 00:28:36,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:28:36,597 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 22 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:28:36,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:28:36,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2022-11-26 00:28:36,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2022-11-26 00:28:36,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 124 states have (on average 2.120967741935484) internal successors, (263), 144 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:36,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 263 transitions. [2022-11-26 00:28:36,602 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 263 transitions. Word has length 5 [2022-11-26 00:28:36,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:28:36,602 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 263 transitions. [2022-11-26 00:28:36,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:36,602 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 263 transitions. [2022-11-26 00:28:36,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 00:28:36,602 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:28:36,603 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 00:28:36,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-26 00:28:36,603 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-11-26 00:28:36,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:28:36,604 INFO L85 PathProgramCache]: Analyzing trace with hash 433669802, now seen corresponding path program 1 times [2022-11-26 00:28:36,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:28:36,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28165090] [2022-11-26 00:28:36,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:36,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:28:36,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:28:37,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:28:37,008 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:28:37,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28165090] [2022-11-26 00:28:37,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28165090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:28:37,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:28:37,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:28:37,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362748689] [2022-11-26 00:28:37,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:28:37,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:28:37,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:28:37,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:28:37,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:28:37,011 INFO L87 Difference]: Start difference. First operand 145 states and 263 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:37,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:28:37,175 INFO L93 Difference]: Finished difference Result 218 states and 393 transitions. [2022-11-26 00:28:37,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:28:37,176 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-26 00:28:37,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:28:37,177 INFO L225 Difference]: With dead ends: 218 [2022-11-26 00:28:37,178 INFO L226 Difference]: Without dead ends: 218 [2022-11-26 00:28:37,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:28:37,178 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 36 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:28:37,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 11 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:28:37,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-11-26 00:28:37,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 152. [2022-11-26 00:28:37,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 131 states have (on average 2.1068702290076335) internal successors, (276), 151 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:37,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 276 transitions. [2022-11-26 00:28:37,183 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 276 transitions. Word has length 5 [2022-11-26 00:28:37,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:28:37,183 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 276 transitions. [2022-11-26 00:28:37,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:37,183 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 276 transitions. [2022-11-26 00:28:37,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 00:28:37,184 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:28:37,184 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-26 00:28:37,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-26 00:28:37,184 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-11-26 00:28:37,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:28:37,184 INFO L85 PathProgramCache]: Analyzing trace with hash 559342147, now seen corresponding path program 1 times [2022-11-26 00:28:37,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:28:37,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300988297] [2022-11-26 00:28:37,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:37,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:28:37,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:28:37,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:28:37,772 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:28:37,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300988297] [2022-11-26 00:28:37,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300988297] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:28:37,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:28:37,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:28:37,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426618884] [2022-11-26 00:28:37,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:28:37,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:28:37,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:28:37,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:28:37,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:28:37,774 INFO L87 Difference]: Start difference. First operand 152 states and 276 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:37,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:28:37,948 INFO L93 Difference]: Finished difference Result 151 states and 274 transitions. [2022-11-26 00:28:37,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:28:37,949 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-26 00:28:37,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:28:37,950 INFO L225 Difference]: With dead ends: 151 [2022-11-26 00:28:37,950 INFO L226 Difference]: Without dead ends: 151 [2022-11-26 00:28:37,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:28:37,951 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 14 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:28:37,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 4 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:28:37,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-11-26 00:28:37,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2022-11-26 00:28:37,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 130 states have (on average 2.1076923076923078) internal successors, (274), 150 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:37,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 274 transitions. [2022-11-26 00:28:37,956 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 274 transitions. Word has length 6 [2022-11-26 00:28:37,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:28:37,956 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 274 transitions. [2022-11-26 00:28:37,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:37,956 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 274 transitions. [2022-11-26 00:28:37,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-26 00:28:37,957 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:28:37,957 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:28:37,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-26 00:28:37,957 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-11-26 00:28:37,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:28:37,958 INFO L85 PathProgramCache]: Analyzing trace with hash 159703739, now seen corresponding path program 1 times [2022-11-26 00:28:37,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:28:37,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705241154] [2022-11-26 00:28:37,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:37,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:28:37,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:28:38,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:28:38,066 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:28:38,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705241154] [2022-11-26 00:28:38,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705241154] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:28:38,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:28:38,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:28:38,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833959240] [2022-11-26 00:28:38,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:28:38,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:28:38,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:28:38,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:28:38,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:28:38,067 INFO L87 Difference]: Start difference. First operand 151 states and 274 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:38,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:28:38,186 INFO L93 Difference]: Finished difference Result 139 states and 247 transitions. [2022-11-26 00:28:38,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:28:38,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-26 00:28:38,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:28:38,188 INFO L225 Difference]: With dead ends: 139 [2022-11-26 00:28:38,188 INFO L226 Difference]: Without dead ends: 139 [2022-11-26 00:28:38,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:28:38,188 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 19 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:28:38,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 2 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:28:38,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-11-26 00:28:38,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2022-11-26 00:28:38,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 122 states have (on average 2.0245901639344264) internal successors, (247), 138 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:38,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 247 transitions. [2022-11-26 00:28:38,193 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 247 transitions. Word has length 7 [2022-11-26 00:28:38,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:28:38,193 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 247 transitions. [2022-11-26 00:28:38,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:38,194 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 247 transitions. [2022-11-26 00:28:38,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-26 00:28:38,194 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:28:38,194 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:28:38,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-26 00:28:38,195 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-11-26 00:28:38,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:28:38,195 INFO L85 PathProgramCache]: Analyzing trace with hash 159703411, now seen corresponding path program 1 times [2022-11-26 00:28:38,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:28:38,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797742764] [2022-11-26 00:28:38,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:38,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:28:38,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:28:38,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:28:38,654 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:28:38,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797742764] [2022-11-26 00:28:38,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797742764] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:28:38,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:28:38,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:28:38,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730192908] [2022-11-26 00:28:38,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:28:38,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:28:38,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:28:38,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:28:38,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:28:38,656 INFO L87 Difference]: Start difference. First operand 139 states and 247 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:38,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:28:38,974 INFO L93 Difference]: Finished difference Result 136 states and 241 transitions. [2022-11-26 00:28:38,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:28:38,975 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-26 00:28:38,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:28:38,976 INFO L225 Difference]: With dead ends: 136 [2022-11-26 00:28:38,976 INFO L226 Difference]: Without dead ends: 136 [2022-11-26 00:28:38,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:28:38,977 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 21 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:28:38,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 4 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 00:28:38,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-11-26 00:28:38,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2022-11-26 00:28:38,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 120 states have (on average 2.0083333333333333) internal successors, (241), 135 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:38,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 241 transitions. [2022-11-26 00:28:38,981 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 241 transitions. Word has length 7 [2022-11-26 00:28:38,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:28:38,982 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 241 transitions. [2022-11-26 00:28:38,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:38,982 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 241 transitions. [2022-11-26 00:28:38,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-26 00:28:38,983 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:28:38,983 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:28:38,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-26 00:28:38,984 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-11-26 00:28:38,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:28:38,985 INFO L85 PathProgramCache]: Analyzing trace with hash 159736271, now seen corresponding path program 1 times [2022-11-26 00:28:38,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:28:38,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134739889] [2022-11-26 00:28:38,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:38,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:28:39,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:28:39,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:28:39,494 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:28:39,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134739889] [2022-11-26 00:28:39,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134739889] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:28:39,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:28:39,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:28:39,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570346666] [2022-11-26 00:28:39,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:28:39,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:28:39,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:28:39,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:28:39,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:28:39,496 INFO L87 Difference]: Start difference. First operand 136 states and 241 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:39,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:28:39,783 INFO L93 Difference]: Finished difference Result 196 states and 343 transitions. [2022-11-26 00:28:39,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 00:28:39,784 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-26 00:28:39,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:28:39,786 INFO L225 Difference]: With dead ends: 196 [2022-11-26 00:28:39,786 INFO L226 Difference]: Without dead ends: 196 [2022-11-26 00:28:39,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:28:39,787 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 49 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:28:39,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 8 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:28:39,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-11-26 00:28:39,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 134. [2022-11-26 00:28:39,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 118 states have (on average 2.0084745762711864) internal successors, (237), 133 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:39,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 237 transitions. [2022-11-26 00:28:39,793 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 237 transitions. Word has length 7 [2022-11-26 00:28:39,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:28:39,793 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 237 transitions. [2022-11-26 00:28:39,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:39,794 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 237 transitions. [2022-11-26 00:28:39,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 00:28:39,795 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:28:39,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:28:39,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-26 00:28:39,795 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-11-26 00:28:39,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:28:39,796 INFO L85 PathProgramCache]: Analyzing trace with hash 655848923, now seen corresponding path program 1 times [2022-11-26 00:28:39,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:28:39,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003311024] [2022-11-26 00:28:39,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:39,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:28:39,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:28:39,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:28:39,920 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:28:39,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003311024] [2022-11-26 00:28:39,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003311024] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:28:39,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:28:39,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:28:39,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475743280] [2022-11-26 00:28:39,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:28:39,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:28:39,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:28:39,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:28:39,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:28:39,921 INFO L87 Difference]: Start difference. First operand 134 states and 237 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:40,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:28:40,201 INFO L93 Difference]: Finished difference Result 154 states and 262 transitions. [2022-11-26 00:28:40,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:28:40,201 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-26 00:28:40,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:28:40,202 INFO L225 Difference]: With dead ends: 154 [2022-11-26 00:28:40,202 INFO L226 Difference]: Without dead ends: 150 [2022-11-26 00:28:40,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:28:40,203 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 53 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:28:40,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 2 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 00:28:40,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-26 00:28:40,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 134. [2022-11-26 00:28:40,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 120 states have (on average 1.9666666666666666) internal successors, (236), 133 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:40,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 236 transitions. [2022-11-26 00:28:40,209 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 236 transitions. Word has length 8 [2022-11-26 00:28:40,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:28:40,209 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 236 transitions. [2022-11-26 00:28:40,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:40,209 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 236 transitions. [2022-11-26 00:28:40,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 00:28:40,210 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:28:40,210 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:28:40,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-26 00:28:40,210 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-11-26 00:28:40,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:28:40,211 INFO L85 PathProgramCache]: Analyzing trace with hash 655837343, now seen corresponding path program 1 times [2022-11-26 00:28:40,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:28:40,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111020320] [2022-11-26 00:28:40,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:40,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:28:40,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:28:40,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:28:40,911 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:28:40,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111020320] [2022-11-26 00:28:40,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111020320] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:28:40,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:28:40,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:28:40,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255784464] [2022-11-26 00:28:40,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:28:40,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:28:40,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:28:40,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:28:40,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:28:40,913 INFO L87 Difference]: Start difference. First operand 134 states and 236 transitions. Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:41,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:28:41,327 INFO L93 Difference]: Finished difference Result 170 states and 290 transitions. [2022-11-26 00:28:41,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-26 00:28:41,327 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-26 00:28:41,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:28:41,328 INFO L225 Difference]: With dead ends: 170 [2022-11-26 00:28:41,328 INFO L226 Difference]: Without dead ends: 170 [2022-11-26 00:28:41,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-11-26 00:28:41,329 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 85 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:28:41,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 7 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 00:28:41,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-11-26 00:28:41,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 128. [2022-11-26 00:28:41,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 115 states have (on average 1.9478260869565218) internal successors, (224), 127 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:41,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 224 transitions. [2022-11-26 00:28:41,334 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 224 transitions. Word has length 8 [2022-11-26 00:28:41,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:28:41,334 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 224 transitions. [2022-11-26 00:28:41,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:41,334 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 224 transitions. [2022-11-26 00:28:41,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 00:28:41,335 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:28:41,335 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:28:41,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-26 00:28:41,336 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-11-26 00:28:41,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:28:41,336 INFO L85 PathProgramCache]: Analyzing trace with hash 195703853, now seen corresponding path program 1 times [2022-11-26 00:28:41,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:28:41,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981605716] [2022-11-26 00:28:41,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:41,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:28:41,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:28:41,363 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:28:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:28:41,418 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:28:41,418 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:28:41,419 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK (37 of 38 remaining) [2022-11-26 00:28:41,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 38 remaining) [2022-11-26 00:28:41,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 38 remaining) [2022-11-26 00:28:41,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 38 remaining) [2022-11-26 00:28:41,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 38 remaining) [2022-11-26 00:28:41,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 38 remaining) [2022-11-26 00:28:41,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 38 remaining) [2022-11-26 00:28:41,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 38 remaining) [2022-11-26 00:28:41,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 38 remaining) [2022-11-26 00:28:41,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 38 remaining) [2022-11-26 00:28:41,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 38 remaining) [2022-11-26 00:28:41,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 38 remaining) [2022-11-26 00:28:41,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 38 remaining) [2022-11-26 00:28:41,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 38 remaining) [2022-11-26 00:28:41,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 38 remaining) [2022-11-26 00:28:41,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 38 remaining) [2022-11-26 00:28:41,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 38 remaining) [2022-11-26 00:28:41,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 38 remaining) [2022-11-26 00:28:41,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 38 remaining) [2022-11-26 00:28:41,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 38 remaining) [2022-11-26 00:28:41,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 38 remaining) [2022-11-26 00:28:41,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 38 remaining) [2022-11-26 00:28:41,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 38 remaining) [2022-11-26 00:28:41,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 38 remaining) [2022-11-26 00:28:41,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 38 remaining) [2022-11-26 00:28:41,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 38 remaining) [2022-11-26 00:28:41,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 38 remaining) [2022-11-26 00:28:41,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 38 remaining) [2022-11-26 00:28:41,427 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 38 remaining) [2022-11-26 00:28:41,427 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 38 remaining) [2022-11-26 00:28:41,427 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 38 remaining) [2022-11-26 00:28:41,427 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 38 remaining) [2022-11-26 00:28:41,427 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 38 remaining) [2022-11-26 00:28:41,427 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 38 remaining) [2022-11-26 00:28:41,428 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 38 remaining) [2022-11-26 00:28:41,428 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 38 remaining) [2022-11-26 00:28:41,428 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 38 remaining) [2022-11-26 00:28:41,428 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 38 remaining) [2022-11-26 00:28:41,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-26 00:28:41,431 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:28:41,437 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-26 00:28:41,437 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:28:41,446 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,447 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock [2022-11-26 00:28:41,447 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,447 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind [2022-11-26 00:28:41,447 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,447 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner [2022-11-26 00:28:41,448 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,448 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers [2022-11-26 00:28:41,448 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,448 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count [2022-11-26 00:28:41,449 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,449 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock [2022-11-26 00:28:41,449 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,449 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner [2022-11-26 00:28:41,449 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,450 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count [2022-11-26 00:28:41,450 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,450 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind [2022-11-26 00:28:41,450 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,450 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers [2022-11-26 00:28:41,451 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,451 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock [2022-11-26 00:28:41,451 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,451 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner [2022-11-26 00:28:41,451 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,452 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count [2022-11-26 00:28:41,452 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,452 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind [2022-11-26 00:28:41,452 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,452 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers [2022-11-26 00:28:41,453 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,453 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock [2022-11-26 00:28:41,453 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,453 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner [2022-11-26 00:28:41,454 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,454 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count [2022-11-26 00:28:41,454 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,454 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind [2022-11-26 00:28:41,454 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,455 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers [2022-11-26 00:28:41,455 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,455 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock [2022-11-26 00:28:41,455 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,455 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner [2022-11-26 00:28:41,456 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,456 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count [2022-11-26 00:28:41,456 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,456 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind [2022-11-26 00:28:41,457 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,457 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers [2022-11-26 00:28:41,457 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,457 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock [2022-11-26 00:28:41,457 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,458 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner [2022-11-26 00:28:41,458 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,458 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count [2022-11-26 00:28:41,458 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,458 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind [2022-11-26 00:28:41,459 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,459 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers [2022-11-26 00:28:41,459 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,459 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock [2022-11-26 00:28:41,459 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,460 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner [2022-11-26 00:28:41,460 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,460 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count [2022-11-26 00:28:41,460 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,460 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind [2022-11-26 00:28:41,461 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,461 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers [2022-11-26 00:28:41,461 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,461 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock [2022-11-26 00:28:41,462 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,462 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind [2022-11-26 00:28:41,462 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,462 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner [2022-11-26 00:28:41,462 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,462 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers [2022-11-26 00:28:41,463 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-26 00:28:41,463 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count [2022-11-26 00:28:41,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:28:41 BasicIcfg [2022-11-26 00:28:41,477 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:28:41,478 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:28:41,478 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:28:41,478 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:28:41,479 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:27:54" (3/4) ... [2022-11-26 00:28:41,482 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:28:41,482 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:28:41,483 INFO L158 Benchmark]: Toolchain (without parser) took 48725.41ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 139.5MB in the beginning and 160.9MB in the end (delta: -21.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-26 00:28:41,483 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 130.0MB. Free memory was 81.5MB in the beginning and 81.4MB in the end (delta: 159.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:28:41,483 INFO L158 Benchmark]: CACSL2BoogieTranslator took 910.97ms. Allocated memory is still 178.3MB. Free memory was 139.5MB in the beginning and 101.4MB in the end (delta: 38.1MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-26 00:28:41,484 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.56ms. Allocated memory is still 178.3MB. Free memory was 101.2MB in the beginning and 147.1MB in the end (delta: -45.9MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2022-11-26 00:28:41,484 INFO L158 Benchmark]: Boogie Preprocessor took 30.59ms. Allocated memory is still 178.3MB. Free memory was 147.1MB in the beginning and 145.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:28:41,484 INFO L158 Benchmark]: RCFGBuilder took 591.71ms. Allocated memory is still 178.3MB. Free memory was 145.4MB in the beginning and 126.0MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-26 00:28:41,485 INFO L158 Benchmark]: TraceAbstraction took 47092.29ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 125.4MB in the beginning and 160.9MB in the end (delta: -35.6MB). Peak memory consumption was 799.6kB. Max. memory is 16.1GB. [2022-11-26 00:28:41,485 INFO L158 Benchmark]: Witness Printer took 4.15ms. Allocated memory is still 213.9MB. Free memory is still 160.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:28:41,487 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 130.0MB. Free memory was 81.5MB in the beginning and 81.4MB in the end (delta: 159.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 910.97ms. Allocated memory is still 178.3MB. Free memory was 139.5MB in the beginning and 101.4MB in the end (delta: 38.1MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.56ms. Allocated memory is still 178.3MB. Free memory was 101.2MB in the beginning and 147.1MB in the end (delta: -45.9MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.59ms. Allocated memory is still 178.3MB. Free memory was 147.1MB in the beginning and 145.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 591.71ms. Allocated memory is still 178.3MB. Free memory was 145.4MB in the beginning and 126.0MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 47092.29ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 125.4MB in the beginning and 160.9MB in the end (delta: -35.6MB). Peak memory consumption was 799.6kB. Max. memory is 16.1GB. * Witness Printer took 4.15ms. Allocated memory is still 213.9MB. Free memory is still 160.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.5s, 128 PlacesBefore, 49 PlacesAfterwards, 124 TransitionsBefore, 45 TransitionsAfterwards, 1584 CoEnabledTransitionPairs, 7 FixpointIterations, 100 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 151 TotalNumberOfCompositions, 6355 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3303, independent: 2967, independent conditional: 0, independent unconditional: 2967, dependent: 336, dependent conditional: 0, dependent unconditional: 336, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1228, independent: 1159, independent conditional: 0, independent unconditional: 1159, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1228, independent: 1124, independent conditional: 0, independent unconditional: 1124, dependent: 104, dependent conditional: 0, dependent unconditional: 104, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 104, independent: 35, independent conditional: 0, independent unconditional: 35, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 299, independent: 55, independent conditional: 0, independent unconditional: 55, dependent: 244, dependent conditional: 0, dependent unconditional: 244, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3303, independent: 1808, independent conditional: 0, independent unconditional: 1808, dependent: 267, dependent conditional: 0, dependent unconditional: 267, unknown: 1228, unknown conditional: 0, unknown unconditional: 1228] , Statistics on independence cache: Total cache size (in pairs): 232, Positive cache size: 193, Positive conditional cache size: 0, Positive unconditional cache size: 193, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1244]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1244. Possible FailurePath: [L1223-L1226] 0 struct s { int datum; struct s *next; } *A; [L1231] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1232] 0 pthread_mutex_t B_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1245] 0 pthread_t t1; [L1246] 0 struct s *p = malloc(sizeof(struct s)); [L1247] CALL 0 init(p,9) [L1228] 0 p -> datum = x [L1229] 0 p -> next = ((void *)0) [L1247] RET 0 init(p,9) [L1248] 0 A = malloc(sizeof(struct s)) [L1249] CALL 0 init(A,3) [L1228] 0 p -> datum = x [L1229] 0 p -> next = ((void *)0) [L1249] RET 0 init(A,3) [L1250] 0 A->next = p [L1251] FCALL, FORK 0 pthread_create(&t1, ((void *)0), t_fun, ((void *)0)) VAL [A={-2:0}, A_mutex={1:0}, B_mutex=0, B_mutex=0, B_mutex=0, B_mutex=0, B_mutex=0, p={-3:0}, pthread_create(&t1, ((void *)0), t_fun, ((void *)0))=-1, t1={2:0}] [L1253] EXPR 0 A->next [L1253] 0 p = A->next [L1254] 0 p->datum [L1256] 0 return 0; [L1256] 0 return 0; - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1251]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 160 locations, 38 error locations. Started 1 CEGAR loops. OverallTime: 46.8s, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 38.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 402 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 402 mSDsluCounter, 70 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1045 IncrementalHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 51 mSDtfsCounter, 1045 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=257occurred in iteration=0, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 15 MinimizatonAttempts, 282 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 846 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 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 could not prove your program: unable to determine feasibility of some traces [2022-11-26 00:28:41,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e89bfb3-0bf9-48d0-b124-4028b3a53533/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e89bfb3-0bf9-48d0-b124-4028b3a53533/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e89bfb3-0bf9-48d0-b124-4028b3a53533/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e89bfb3-0bf9-48d0-b124-4028b3a53533/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e89bfb3-0bf9-48d0-b124-4028b3a53533/bin/utaipan-ByfvJB40ur/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e89bfb3-0bf9-48d0-b124-4028b3a53533/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e89bfb3-0bf9-48d0-b124-4028b3a53533/bin/utaipan-ByfvJB40ur --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 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c --- 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-38b53e6 [2022-11-26 00:28:44,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:28:44,011 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:28:44,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:28:44,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:28:44,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:28:44,067 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:28:44,070 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:28:44,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:28:44,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:28:44,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:28:44,082 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:28:44,083 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:28:44,085 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:28:44,087 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:28:44,093 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:28:44,094 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:28:44,095 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:28:44,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:28:44,102 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:28:44,104 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:28:44,106 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:28:44,107 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:28:44,108 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:28:44,118 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:28:44,118 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:28:44,119 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:28:44,121 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:28:44,122 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:28:44,123 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:28:44,123 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:28:44,124 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:28:44,126 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:28:44,127 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:28:44,128 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:28:44,128 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:28:44,129 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:28:44,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:28:44,130 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:28:44,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:28:44,131 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:28:44,132 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e89bfb3-0bf9-48d0-b124-4028b3a53533/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-11-26 00:28:44,174 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:28:44,175 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:28:44,175 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:28:44,176 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:28:44,177 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:28:44,177 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:28:44,177 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:28:44,177 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:28:44,178 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:28:44,178 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:28:44,179 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:28:44,179 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:28:44,180 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-26 00:28:44,180 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-26 00:28:44,181 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:28:44,181 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:28:44,181 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:28:44,182 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:28:44,182 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:28:44,182 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:28:44,182 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-26 00:28:44,183 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-26 00:28:44,183 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-26 00:28:44,183 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:28:44,184 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 00:28:44,184 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 00:28:44,184 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 00:28:44,184 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:28:44,185 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:28:44,185 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:28:44,185 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 00:28:44,186 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:28:44,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:28:44,186 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:28:44,187 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:28:44,187 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 00:28:44,187 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 00:28:44,188 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:28:44,188 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 00:28:44,188 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_3e89bfb3-0bf9-48d0-b124-4028b3a53533/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e89bfb3-0bf9-48d0-b124-4028b3a53533/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c [2022-11-26 00:28:44,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:28:44,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:28:44,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:28:44,636 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:28:44,636 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:28:44,637 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e89bfb3-0bf9-48d0-b124-4028b3a53533/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i [2022-11-26 00:28:47,681 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:28:48,037 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:28:48,037 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e89bfb3-0bf9-48d0-b124-4028b3a53533/sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i [2022-11-26 00:28:48,068 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e89bfb3-0bf9-48d0-b124-4028b3a53533/bin/utaipan-ByfvJB40ur/data/54a237cd7/1b0ad1942c3b4ed7aca85e7b3ae9ea41/FLAGeffd44efe [2022-11-26 00:28:48,091 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e89bfb3-0bf9-48d0-b124-4028b3a53533/bin/utaipan-ByfvJB40ur/data/54a237cd7/1b0ad1942c3b4ed7aca85e7b3ae9ea41 [2022-11-26 00:28:48,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:28:48,095 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:28:48,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:28:48,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:28:48,104 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:28:48,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:28:48" (1/1) ... [2022-11-26 00:28:48,106 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@200ff09c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:48, skipping insertion in model container [2022-11-26 00:28:48,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:28:48" (1/1) ... [2022-11-26 00:28:48,117 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:28:48,188 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:28:48,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:28:49,017 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:28:49,099 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:28:49,237 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:28:49,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:49 WrapperNode [2022-11-26 00:28:49,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:28:49,257 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:28:49,257 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:28:49,257 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:28:49,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:49" (1/1) ... [2022-11-26 00:28:49,308 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:49" (1/1) ... [2022-11-26 00:28:49,353 INFO L138 Inliner]: procedures = 369, calls = 29, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 81 [2022-11-26 00:28:49,354 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:28:49,355 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:28:49,355 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:28:49,356 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:28:49,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:49" (1/1) ... [2022-11-26 00:28:49,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:49" (1/1) ... [2022-11-26 00:28:49,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:49" (1/1) ... [2022-11-26 00:28:49,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:49" (1/1) ... [2022-11-26 00:28:49,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:49" (1/1) ... [2022-11-26 00:28:49,410 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:49" (1/1) ... [2022-11-26 00:28:49,412 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:49" (1/1) ... [2022-11-26 00:28:49,414 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:49" (1/1) ... [2022-11-26 00:28:49,417 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:28:49,418 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:28:49,418 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:28:49,418 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:28:49,419 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:49" (1/1) ... [2022-11-26 00:28:49,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:28:49,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e89bfb3-0bf9-48d0-b124-4028b3a53533/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:28:49,453 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e89bfb3-0bf9-48d0-b124-4028b3a53533/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:28:49,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e89bfb3-0bf9-48d0-b124-4028b3a53533/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:28:49,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-26 00:28:49,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:28:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:28:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:28:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-26 00:28:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-26 00:28:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-26 00:28:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:28:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:28:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:28:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-26 00:28:49,497 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-26 00:28:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:28:49,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:28:49,499 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-26 00:28:49,664 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:28:49,683 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:28:50,211 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:28:50,218 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:28:50,218 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:28:50,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:28:50 BoogieIcfgContainer [2022-11-26 00:28:50,221 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:28:50,223 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:28:50,223 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:28:50,226 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:28:50,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:28:48" (1/3) ... [2022-11-26 00:28:50,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@638781fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:28:50, skipping insertion in model container [2022-11-26 00:28:50,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:49" (2/3) ... [2022-11-26 00:28:50,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@638781fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:28:50, skipping insertion in model container [2022-11-26 00:28:50,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:28:50" (3/3) ... [2022-11-26 00:28:50,229 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_02-list_nr.i [2022-11-26 00:28:50,247 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:28:50,248 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2022-11-26 00:28:50,248 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:28:50,346 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-26 00:28:50,401 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:28:50,439 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 125 transitions, 255 flow [2022-11-26 00:28:50,442 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 129 places, 125 transitions, 255 flow [2022-11-26 00:28:50,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 125 transitions, 255 flow [2022-11-26 00:28:50,540 INFO L130 PetriNetUnfolder]: 0/124 cut-off events. [2022-11-26 00:28:50,541 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-26 00:28:50,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 124 events. 0/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 142 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-26 00:28:50,547 INFO L119 LiptonReduction]: Number of co-enabled transitions 1584 [2022-11-26 00:29:27,192 WARN L233 SmtUtils]: Spent 5.39s on a formula simplification. DAG size of input: 100 DAG size of output: 92 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:29:34,516 WARN L233 SmtUtils]: Spent 5.44s on a formula simplification. DAG size of input: 100 DAG size of output: 93 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:30:07,287 WARN L233 SmtUtils]: Spent 25.00s on a formula simplification. DAG size of input: 117 DAG size of output: 116 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:30:17,735 WARN L233 SmtUtils]: Spent 10.45s on a formula simplification that was a NOOP. DAG size: 112 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:30:37,854 WARN L233 SmtUtils]: Spent 20.12s on a formula simplification. DAG size of input: 118 DAG size of output: 117 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:30:46,965 WARN L233 SmtUtils]: Spent 9.11s on a formula simplification that was a NOOP. DAG size: 113 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:31:23,014 WARN L233 SmtUtils]: Spent 8.96s on a formula simplification. DAG size of input: 153 DAG size of output: 152 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:31:33,805 WARN L233 SmtUtils]: Spent 6.44s on a formula simplification. DAG size of input: 153 DAG size of output: 152 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:36:21,593 WARN L233 SmtUtils]: Spent 4.73m on a formula simplification. DAG size of input: 239 DAG size of output: 224 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:38:29,912 WARN L233 SmtUtils]: Spent 2.14m on a formula simplification that was a NOOP. DAG size: 209 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)