./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread/reorder_5-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 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_e6516f96-12d3-4a46-a6c8-ad267252ca98/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6516f96-12d3-4a46-a6c8-ad267252ca98/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6516f96-12d3-4a46-a6c8-ad267252ca98/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6516f96-12d3-4a46-a6c8-ad267252ca98/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/reorder_5-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6516f96-12d3-4a46-a6c8-ad267252ca98/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6516f96-12d3-4a46-a6c8-ad267252ca98/bin/utaipan-gh47qXpMRh --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 c2478eeb4380713960dd80551c9d8e99269809d2bcbd284785221597bb31a471 --- 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-2329fc7 [2022-12-14 08:54:46,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:54:46,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:54:46,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:54:46,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:54:46,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:54:46,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:54:46,901 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:54:46,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:54:46,904 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:54:46,906 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:54:46,907 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:54:46,908 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:54:46,909 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:54:46,911 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:54:46,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:54:46,913 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:54:46,913 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:54:46,914 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:54:46,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:54:46,916 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:54:46,918 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:54:46,920 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:54:46,921 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:54:46,924 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:54:46,924 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:54:46,924 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:54:46,925 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:54:46,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:54:46,926 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:54:46,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:54:46,927 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:54:46,927 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:54:46,928 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:54:46,928 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:54:46,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:54:46,929 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:54:46,929 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:54:46,929 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:54:46,930 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:54:46,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:54:46,931 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6516f96-12d3-4a46-a6c8-ad267252ca98/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-12-14 08:54:46,958 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:54:46,959 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:54:46,959 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:54:46,959 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:54:46,960 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:54:46,960 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:54:46,960 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:54:46,960 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:54:46,960 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:54:46,960 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:54:46,961 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:54:46,961 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:54:46,961 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:54:46,961 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:54:46,961 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:54:46,962 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:54:46,962 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:54:46,962 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:54:46,962 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 08:54:46,963 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 08:54:46,963 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:54:46,963 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:54:46,963 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 08:54:46,963 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:54:46,963 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:54:46,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:54:46,964 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 08:54:46,964 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 08:54:46,964 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 08:54:46,964 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:54:46,964 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 08:54:46,965 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:54:46,965 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:54:46,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:54:46,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:54:46,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:54:46,966 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:54:46,966 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:54:46,966 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:54:46,966 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:54:46,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:54:46,966 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:54:46,967 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_e6516f96-12d3-4a46-a6c8-ad267252ca98/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6516f96-12d3-4a46-a6c8-ad267252ca98/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2478eeb4380713960dd80551c9d8e99269809d2bcbd284785221597bb31a471 [2022-12-14 08:54:47,145 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:54:47,161 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:54:47,163 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:54:47,164 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:54:47,165 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:54:47,165 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6516f96-12d3-4a46-a6c8-ad267252ca98/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread/reorder_5-2.i [2022-12-14 08:54:49,748 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:54:49,950 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:54:49,950 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6516f96-12d3-4a46-a6c8-ad267252ca98/sv-benchmarks/c/pthread/reorder_5-2.i [2022-12-14 08:54:49,962 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6516f96-12d3-4a46-a6c8-ad267252ca98/bin/utaipan-gh47qXpMRh/data/a2918bb3b/cd38b0e4e8764a738f044423d79ea84d/FLAG83b454c50 [2022-12-14 08:54:49,972 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6516f96-12d3-4a46-a6c8-ad267252ca98/bin/utaipan-gh47qXpMRh/data/a2918bb3b/cd38b0e4e8764a738f044423d79ea84d [2022-12-14 08:54:49,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:54:49,976 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:54:49,977 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:54:49,977 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:54:49,980 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:54:49,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:54:49" (1/1) ... [2022-12-14 08:54:49,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c96237f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:54:49, skipping insertion in model container [2022-12-14 08:54:49,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:54:49" (1/1) ... [2022-12-14 08:54:49,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:54:50,027 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:54:50,527 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 08:54:50,535 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 08:54:50,538 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 08:54:50,541 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 08:54:50,543 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 08:54:50,546 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 08:54:50,547 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6516f96-12d3-4a46-a6c8-ad267252ca98/sv-benchmarks/c/pthread/reorder_5-2.i[59329,59342] [2022-12-14 08:54:50,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:54:50,558 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:54:50,601 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 08:54:50,604 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 08:54:50,606 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 08:54:50,607 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 08:54:50,609 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 08:54:50,612 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 08:54:50,612 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6516f96-12d3-4a46-a6c8-ad267252ca98/sv-benchmarks/c/pthread/reorder_5-2.i[59329,59342] [2022-12-14 08:54:50,613 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:54:50,702 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:54:50,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:54:50 WrapperNode [2022-12-14 08:54:50,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:54:50,704 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:54:50,704 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:54:50,704 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:54:50,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:54:50" (1/1) ... [2022-12-14 08:54:50,723 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:54:50" (1/1) ... [2022-12-14 08:54:50,739 INFO L138 Inliner]: procedures = 369, calls = 37, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 136 [2022-12-14 08:54:50,739 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:54:50,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:54:50,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:54:50,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:54:50,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:54:50" (1/1) ... [2022-12-14 08:54:50,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:54:50" (1/1) ... [2022-12-14 08:54:50,752 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:54:50" (1/1) ... [2022-12-14 08:54:50,752 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:54:50" (1/1) ... [2022-12-14 08:54:50,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:54:50" (1/1) ... [2022-12-14 08:54:50,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:54:50" (1/1) ... [2022-12-14 08:54:50,768 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:54:50" (1/1) ... [2022-12-14 08:54:50,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:54:50" (1/1) ... [2022-12-14 08:54:50,773 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:54:50,774 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:54:50,774 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:54:50,774 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:54:50,775 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:54:50" (1/1) ... [2022-12-14 08:54:50,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:54:50,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6516f96-12d3-4a46-a6c8-ad267252ca98/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:54:50,801 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6516f96-12d3-4a46-a6c8-ad267252ca98/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:54:50,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6516f96-12d3-4a46-a6c8-ad267252ca98/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:54:50,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 08:54:50,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 08:54:50,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 08:54:50,842 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2022-12-14 08:54:50,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2022-12-14 08:54:50,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 08:54:50,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:54:50,843 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2022-12-14 08:54:50,843 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2022-12-14 08:54:50,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:54:50,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:54:50,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:54:50,845 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 08:54:50,955 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:54:50,957 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:54:51,238 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:54:51,248 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:54:51,248 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-14 08:54:51,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:54:51 BoogieIcfgContainer [2022-12-14 08:54:51,251 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:54:51,253 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:54:51,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:54:51,256 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:54:51,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:54:49" (1/3) ... [2022-12-14 08:54:51,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@204141b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:54:51, skipping insertion in model container [2022-12-14 08:54:51,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:54:50" (2/3) ... [2022-12-14 08:54:51,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@204141b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:54:51, skipping insertion in model container [2022-12-14 08:54:51,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:54:51" (3/3) ... [2022-12-14 08:54:51,259 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_5-2.i [2022-12-14 08:54:51,275 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:54:51,275 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-12-14 08:54:51,275 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 08:54:51,337 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-12-14 08:54:51,382 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 08:54:51,395 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 176 places, 186 transitions, 394 flow [2022-12-14 08:54:51,397 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 176 places, 186 transitions, 394 flow [2022-12-14 08:54:51,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 176 places, 186 transitions, 394 flow [2022-12-14 08:54:51,497 INFO L130 PetriNetUnfolder]: 35/411 cut-off events. [2022-12-14 08:54:51,497 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-14 08:54:51,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 431 conditions, 411 events. 35/411 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1689 event pairs, 0 based on Foata normal form. 0/300 useless extension candidates. Maximal degree in co-relation 218. Up to 8 conditions per place. [2022-12-14 08:54:51,504 INFO L119 LiptonReduction]: Number of co-enabled transitions 2694 [2022-12-14 08:55:01,696 INFO L134 LiptonReduction]: Checked pairs total: 4459 [2022-12-14 08:55:01,696 INFO L136 LiptonReduction]: Total number of compositions: 209 [2022-12-14 08:55:01,703 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53 places, 52 transitions, 126 flow [2022-12-14 08:55:01,741 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 410 states, 302 states have (on average 2.6324503311258276) internal successors, (795), 409 states have internal predecessors, (795), 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) [2022-12-14 08:55:01,756 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:55:01,762 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;@44e5d51a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:55:01,763 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2022-12-14 08:55:01,766 INFO L276 IsEmpty]: Start isEmpty. Operand has 410 states, 302 states have (on average 2.6324503311258276) internal successors, (795), 409 states have internal predecessors, (795), 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) [2022-12-14 08:55:01,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 08:55:01,770 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:55:01,770 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 08:55:01,771 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2022-12-14 08:55:01,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:55:01,775 INFO L85 PathProgramCache]: Analyzing trace with hash 687, now seen corresponding path program 1 times [2022-12-14 08:55:01,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:55:01,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806493614] [2022-12-14 08:55:01,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:55:01,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:55:01,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:55:01,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:55:01,883 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:55:01,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806493614] [2022-12-14 08:55:01,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806493614] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:55:01,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:55:01,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 08:55:01,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188747228] [2022-12-14 08:55:01,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:55:01,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 08:55:01,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:55:01,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 08:55:01,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 08:55:01,913 INFO L87 Difference]: Start difference. First operand has 410 states, 302 states have (on average 2.6324503311258276) internal successors, (795), 409 states have internal predecessors, (795), 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) [2022-12-14 08:55:01,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:55:01,978 INFO L93 Difference]: Finished difference Result 402 states and 787 transitions. [2022-12-14 08:55:01,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 08:55:01,980 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 [2022-12-14 08:55:01,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:55:01,988 INFO L225 Difference]: With dead ends: 402 [2022-12-14 08:55:01,989 INFO L226 Difference]: Without dead ends: 393 [2022-12-14 08:55:01,989 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 [2022-12-14 08:55:01,991 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:55:01,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:55:02,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-12-14 08:55:02,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2022-12-14 08:55:02,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 298 states have (on average 2.5838926174496644) internal successors, (770), 392 states have internal predecessors, (770), 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) [2022-12-14 08:55:02,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 770 transitions. [2022-12-14 08:55:02,031 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 770 transitions. Word has length 1 [2022-12-14 08:55:02,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:55:02,032 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 770 transitions. [2022-12-14 08:55:02,032 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) [2022-12-14 08:55:02,032 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 770 transitions. [2022-12-14 08:55:02,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 08:55:02,032 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:55:02,032 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 08:55:02,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:55:02,032 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2022-12-14 08:55:02,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:55:02,033 INFO L85 PathProgramCache]: Analyzing trace with hash 21936, now seen corresponding path program 1 times [2022-12-14 08:55:02,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:55:02,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407175000] [2022-12-14 08:55:02,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:55:02,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:55:02,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:55:02,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:55:02,219 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:55:02,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407175000] [2022-12-14 08:55:02,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407175000] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:55:02,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:55:02,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 08:55:02,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087891733] [2022-12-14 08:55:02,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:55:02,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:55:02,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:55:02,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:55:02,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:55:02,222 INFO L87 Difference]: Start difference. First operand 393 states and 770 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-12-14 08:55:02,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:55:02,272 INFO L93 Difference]: Finished difference Result 373 states and 732 transitions. [2022-12-14 08:55:02,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:55:02,272 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-12-14 08:55:02,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:55:02,276 INFO L225 Difference]: With dead ends: 373 [2022-12-14 08:55:02,276 INFO L226 Difference]: Without dead ends: 373 [2022-12-14 08:55:02,276 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 [2022-12-14 08:55:02,277 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 39 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:55:02,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 8 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:55:02,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-12-14 08:55:02,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 373. [2022-12-14 08:55:02,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 286 states have (on average 2.5594405594405596) internal successors, (732), 372 states have internal predecessors, (732), 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) [2022-12-14 08:55:02,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 732 transitions. [2022-12-14 08:55:02,288 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 732 transitions. Word has length 2 [2022-12-14 08:55:02,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:55:02,289 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 732 transitions. [2022-12-14 08:55:02,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-12-14 08:55:02,289 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 732 transitions. [2022-12-14 08:55:02,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 08:55:02,289 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:55:02,289 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 08:55:02,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 08:55:02,290 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2022-12-14 08:55:02,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:55:02,290 INFO L85 PathProgramCache]: Analyzing trace with hash 21938, now seen corresponding path program 1 times [2022-12-14 08:55:02,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:55:02,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700357969] [2022-12-14 08:55:02,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:55:02,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:55:02,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:55:02,332 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 08:55:02,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:55:02,379 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 08:55:02,380 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 08:55:02,381 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 29 remaining) [2022-12-14 08:55:02,382 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (27 of 29 remaining) [2022-12-14 08:55:02,383 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 29 remaining) [2022-12-14 08:55:02,383 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 29 remaining) [2022-12-14 08:55:02,383 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 29 remaining) [2022-12-14 08:55:02,383 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 29 remaining) [2022-12-14 08:55:02,383 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 29 remaining) [2022-12-14 08:55:02,384 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 29 remaining) [2022-12-14 08:55:02,384 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 29 remaining) [2022-12-14 08:55:02,384 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 29 remaining) [2022-12-14 08:55:02,384 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 29 remaining) [2022-12-14 08:55:02,384 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 29 remaining) [2022-12-14 08:55:02,384 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 29 remaining) [2022-12-14 08:55:02,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 29 remaining) [2022-12-14 08:55:02,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 29 remaining) [2022-12-14 08:55:02,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 29 remaining) [2022-12-14 08:55:02,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 29 remaining) [2022-12-14 08:55:02,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 29 remaining) [2022-12-14 08:55:02,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 29 remaining) [2022-12-14 08:55:02,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 29 remaining) [2022-12-14 08:55:02,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 29 remaining) [2022-12-14 08:55:02,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 29 remaining) [2022-12-14 08:55:02,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 29 remaining) [2022-12-14 08:55:02,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 29 remaining) [2022-12-14 08:55:02,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 29 remaining) [2022-12-14 08:55:02,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (3 of 29 remaining) [2022-12-14 08:55:02,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 29 remaining) [2022-12-14 08:55:02,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 29 remaining) [2022-12-14 08:55:02,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 29 remaining) [2022-12-14 08:55:02,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 08:55:02,390 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-14 08:55:02,395 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 08:55:02,395 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 08:55:02,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 08:55:02 BasicIcfg [2022-12-14 08:55:02,415 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 08:55:02,415 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 08:55:02,415 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 08:55:02,415 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 08:55:02,416 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:54:51" (3/4) ... [2022-12-14 08:55:02,417 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 08:55:02,451 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6516f96-12d3-4a46-a6c8-ad267252ca98/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 08:55:02,451 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 08:55:02,451 INFO L158 Benchmark]: Toolchain (without parser) took 12475.38ms. Allocated memory is still 163.6MB. Free memory was 126.2MB in the beginning and 120.0MB in the end (delta: 6.2MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2022-12-14 08:55:02,451 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 115.3MB. Free memory was 89.3MB in the beginning and 89.3MB in the end (delta: 24.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:55:02,452 INFO L158 Benchmark]: CACSL2BoogieTranslator took 726.54ms. Allocated memory is still 163.6MB. Free memory was 126.2MB in the beginning and 86.4MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-12-14 08:55:02,452 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.33ms. Allocated memory is still 163.6MB. Free memory was 86.4MB in the beginning and 84.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:55:02,452 INFO L158 Benchmark]: Boogie Preprocessor took 33.71ms. Allocated memory is still 163.6MB. Free memory was 84.2MB in the beginning and 82.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:55:02,453 INFO L158 Benchmark]: RCFGBuilder took 476.84ms. Allocated memory is still 163.6MB. Free memory was 82.2MB in the beginning and 61.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-14 08:55:02,453 INFO L158 Benchmark]: TraceAbstraction took 11161.20ms. Allocated memory is still 163.6MB. Free memory was 61.2MB in the beginning and 122.1MB in the end (delta: -60.9MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. [2022-12-14 08:55:02,453 INFO L158 Benchmark]: Witness Printer took 35.63ms. Allocated memory is still 163.6MB. Free memory was 122.1MB in the beginning and 120.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:55:02,455 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 115.3MB. Free memory was 89.3MB in the beginning and 89.3MB in the end (delta: 24.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 726.54ms. Allocated memory is still 163.6MB. Free memory was 126.2MB in the beginning and 86.4MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.33ms. Allocated memory is still 163.6MB. Free memory was 86.4MB in the beginning and 84.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.71ms. Allocated memory is still 163.6MB. Free memory was 84.2MB in the beginning and 82.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 476.84ms. Allocated memory is still 163.6MB. Free memory was 82.2MB in the beginning and 61.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 11161.20ms. Allocated memory is still 163.6MB. Free memory was 61.2MB in the beginning and 122.1MB in the end (delta: -60.9MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. * Witness Printer took 35.63ms. Allocated memory is still 163.6MB. Free memory was 122.1MB in the beginning and 120.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.3s, 176 PlacesBefore, 53 PlacesAfterwards, 186 TransitionsBefore, 52 TransitionsAfterwards, 2694 CoEnabledTransitionPairs, 7 FixpointIterations, 81 TrivialSequentialCompositions, 94 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 23 ConcurrentYvCompositions, 11 ChoiceCompositions, 209 TotalNumberOfCompositions, 4459 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3286, independent: 3246, independent conditional: 0, independent unconditional: 3246, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1972, independent: 1955, independent conditional: 0, independent unconditional: 1955, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1972, independent: 1955, independent conditional: 0, independent unconditional: 1955, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 17, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 26, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3286, independent: 1291, independent conditional: 0, independent unconditional: 1291, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 1972, unknown conditional: 0, unknown unconditional: 1972] , Statistics on independence cache: Total cache size (in pairs): 111, Positive cache size: 107, Positive conditional cache size: 0, Positive unconditional cache size: 107, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, 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 - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L1227] static int iSet = 4; [L1228] static int iCheck = 1; [L1229] static int a = 0; [L1230] static int b = 0; [L1237] int i, err; [L1238] COND TRUE argc != 1 [L1239] COND FALSE !(argc != 3) [L1247] EXPR \read(iSet) [L1247] pthread_t setPool[iSet]; [L1248] EXPR \read(iCheck) [L1248] pthread_t checkPool[iCheck]; [L1249] i = 0 VAL [\old(argc)=3, \read(iCheck)=1, \read(iSet)=1073741824, a=0, argc=3, argv={1073741825:1073741826}, argv={1073741825:1073741826}, b=0, checkPool={14:0}, i=0, iCheck={11:0}, iSet={10:0}, setPool={13:0}] [L1249] EXPR \read(iSet) [L1249] COND TRUE i < iSet - UnprovableResult [Line: 1284]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed 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: -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: 1236]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1256]: 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: 1250]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 187 locations, 29 error locations. Started 1 CEGAR loops. OverallTime: 11.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 39 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 72 IncrementalHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 20 mSDtfsCounter, 72 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=410occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 1 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-14 08:55:02,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6516f96-12d3-4a46-a6c8-ad267252ca98/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)