./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_58-singlethreaded-lock_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cc05b9e-133f-402f-a051-56aa290c485b/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cc05b9e-133f-402f-a051-56aa290c485b/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cc05b9e-133f-402f-a051-56aa290c485b/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cc05b9e-133f-402f-a051-56aa290c485b/bin/utaipan-6cKwYrpEi9/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_58-singlethreaded-lock_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cc05b9e-133f-402f-a051-56aa290c485b/bin/utaipan-6cKwYrpEi9/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cc05b9e-133f-402f-a051-56aa290c485b/bin/utaipan-6cKwYrpEi9 --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 811283da42f041f661ad39ef0db24fe32e892a6fe6ea5c83dd87a01de44d8628 --- 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-6b4ec56 [2022-11-20 21:10:44,743 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 21:10:44,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 21:10:44,788 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 21:10:44,788 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 21:10:44,792 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 21:10:44,793 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 21:10:44,795 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 21:10:44,797 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 21:10:44,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 21:10:44,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 21:10:44,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 21:10:44,800 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 21:10:44,801 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 21:10:44,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 21:10:44,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 21:10:44,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 21:10:44,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 21:10:44,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 21:10:44,809 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 21:10:44,810 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 21:10:44,811 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 21:10:44,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 21:10:44,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 21:10:44,816 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 21:10:44,817 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 21:10:44,817 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 21:10:44,818 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 21:10:44,819 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 21:10:44,820 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 21:10:44,820 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 21:10:44,821 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 21:10:44,822 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 21:10:44,822 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 21:10:44,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 21:10:44,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 21:10:44,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 21:10:44,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 21:10:44,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 21:10:44,828 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 21:10:44,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 21:10:44,830 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cc05b9e-133f-402f-a051-56aa290c485b/bin/utaipan-6cKwYrpEi9/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-20 21:10:44,851 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 21:10:44,851 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 21:10:44,852 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 21:10:44,852 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 21:10:44,853 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 21:10:44,853 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 21:10:44,853 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 21:10:44,854 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 21:10:44,854 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 21:10:44,854 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 21:10:44,854 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 21:10:44,854 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 21:10:44,855 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 21:10:44,855 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 21:10:44,855 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 21:10:44,855 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 21:10:44,856 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 21:10:44,856 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 21:10:44,856 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 21:10:44,857 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 21:10:44,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 21:10:44,857 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 21:10:44,857 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 21:10:44,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 21:10:44,857 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 21:10:44,858 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 21:10:44,858 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-20 21:10:44,858 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-20 21:10:44,858 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-20 21:10:44,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 21:10:44,863 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 21:10:44,863 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 21:10:44,863 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 21:10:44,864 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 21:10:44,864 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 21:10:44,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:10:44,864 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 21:10:44,865 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 21:10:44,865 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 21:10:44,865 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 21:10:44,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 21:10:44,866 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 21:10:44,866 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_4cc05b9e-133f-402f-a051-56aa290c485b/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cc05b9e-133f-402f-a051-56aa290c485b/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 811283da42f041f661ad39ef0db24fe32e892a6fe6ea5c83dd87a01de44d8628 [2022-11-20 21:10:45,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 21:10:45,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 21:10:45,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 21:10:45,167 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 21:10:45,167 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 21:10:45,169 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cc05b9e-133f-402f-a051-56aa290c485b/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/goblint-regression/13-privatized_58-singlethreaded-lock_true.i [2022-11-20 21:10:48,222 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 21:10:48,546 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 21:10:48,547 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cc05b9e-133f-402f-a051-56aa290c485b/sv-benchmarks/c/goblint-regression/13-privatized_58-singlethreaded-lock_true.i [2022-11-20 21:10:48,569 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cc05b9e-133f-402f-a051-56aa290c485b/bin/utaipan-6cKwYrpEi9/data/9875313f1/82d67416223d44ef851748a4a4469429/FLAG3108702fd [2022-11-20 21:10:48,590 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cc05b9e-133f-402f-a051-56aa290c485b/bin/utaipan-6cKwYrpEi9/data/9875313f1/82d67416223d44ef851748a4a4469429 [2022-11-20 21:10:48,595 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 21:10:48,597 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 21:10:48,602 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 21:10:48,602 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 21:10:48,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 21:10:48,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:10:48" (1/1) ... [2022-11-20 21:10:48,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@740a88cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:10:48, skipping insertion in model container [2022-11-20 21:10:48,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:10:48" (1/1) ... [2022-11-20 21:10:48,616 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 21:10:48,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 21:10:48,876 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_4cc05b9e-133f-402f-a051-56aa290c485b/sv-benchmarks/c/goblint-regression/13-privatized_58-singlethreaded-lock_true.i[1096,1109] [2022-11-20 21:10:49,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:10:49,108 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 21:10:49,120 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_4cc05b9e-133f-402f-a051-56aa290c485b/sv-benchmarks/c/goblint-regression/13-privatized_58-singlethreaded-lock_true.i[1096,1109] [2022-11-20 21:10:49,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:10:49,171 INFO L208 MainTranslator]: Completed translation [2022-11-20 21:10:49,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:10:49 WrapperNode [2022-11-20 21:10:49,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 21:10:49,173 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 21:10:49,173 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 21:10:49,174 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 21:10:49,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:10:49" (1/1) ... [2022-11-20 21:10:49,193 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:10:49" (1/1) ... [2022-11-20 21:10:49,212 INFO L138 Inliner]: procedures = 162, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 44 [2022-11-20 21:10:49,212 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 21:10:49,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 21:10:49,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 21:10:49,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 21:10:49,222 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:10:49" (1/1) ... [2022-11-20 21:10:49,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:10:49" (1/1) ... [2022-11-20 21:10:49,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:10:49" (1/1) ... [2022-11-20 21:10:49,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:10:49" (1/1) ... [2022-11-20 21:10:49,232 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:10:49" (1/1) ... [2022-11-20 21:10:49,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:10:49" (1/1) ... [2022-11-20 21:10:49,240 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:10:49" (1/1) ... [2022-11-20 21:10:49,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:10:49" (1/1) ... [2022-11-20 21:10:49,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 21:10:49,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 21:10:49,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 21:10:49,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 21:10:49,256 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:10:49" (1/1) ... [2022-11-20 21:10:49,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:10:49,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cc05b9e-133f-402f-a051-56aa290c485b/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:10:49,296 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cc05b9e-133f-402f-a051-56aa290c485b/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 21:10:49,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cc05b9e-133f-402f-a051-56aa290c485b/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 21:10:49,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 21:10:49,347 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 21:10:49,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 21:10:49,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 21:10:49,348 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 21:10:49,349 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 21:10:49,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 21:10:49,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 21:10:49,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 21:10:49,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 21:10:49,351 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 21:10:49,512 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 21:10:49,514 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 21:10:49,703 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 21:10:49,711 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 21:10:49,711 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 21:10:49,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:10:49 BoogieIcfgContainer [2022-11-20 21:10:49,714 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 21:10:49,716 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 21:10:49,716 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 21:10:49,720 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 21:10:49,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:10:48" (1/3) ... [2022-11-20 21:10:49,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a2d5b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:10:49, skipping insertion in model container [2022-11-20 21:10:49,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:10:49" (2/3) ... [2022-11-20 21:10:49,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a2d5b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:10:49, skipping insertion in model container [2022-11-20 21:10:49,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:10:49" (3/3) ... [2022-11-20 21:10:49,723 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_58-singlethreaded-lock_true.i [2022-11-20 21:10:49,743 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 21:10:49,744 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-20 21:10:49,744 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 21:10:49,788 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 21:10:49,853 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-20 21:10:49,890 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 61 transitions, 127 flow [2022-11-20 21:10:49,893 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 61 transitions, 127 flow [2022-11-20 21:10:49,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 61 transitions, 127 flow [2022-11-20 21:10:49,932 INFO L130 PetriNetUnfolder]: 1/60 cut-off events. [2022-11-20 21:10:49,932 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 21:10:49,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 60 events. 1/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 18 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2022-11-20 21:10:49,937 INFO L119 LiptonReduction]: Number of co-enabled transitions 132 [2022-11-20 21:10:53,068 INFO L134 LiptonReduction]: Checked pairs total: 95 [2022-11-20 21:10:53,068 INFO L136 LiptonReduction]: Total number of compositions: 75 [2022-11-20 21:10:53,075 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 13 places, 9 transitions, 23 flow [2022-11-20 21:10:53,092 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 10 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 9 states have internal predecessors, (11), 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) [2022-11-20 21:10:53,123 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 21:10:53,132 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;@3ceb45f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 21:10:53,133 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-11-20 21:10:53,135 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 9 states have internal predecessors, (11), 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) [2022-11-20 21:10:53,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-20 21:10:53,140 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:10:53,140 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-20 21:10:53,141 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-11-20 21:10:53,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:10:53,147 INFO L85 PathProgramCache]: Analyzing trace with hash 233, now seen corresponding path program 1 times [2022-11-20 21:10:53,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:10:53,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397194248] [2022-11-20 21:10:53,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:10:53,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:10:53,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:10:53,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:10:53,271 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:10:53,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397194248] [2022-11-20 21:10:53,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397194248] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:10:53,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:10:53,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-20 21:10:53,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275592451] [2022-11-20 21:10:53,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:10:53,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 21:10:53,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:10:53,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 21:10:53,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 21:10:53,304 INFO L87 Difference]: Start difference. First operand has 10 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 9 states have internal predecessors, (11), 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) [2022-11-20 21:10:53,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:10:53,329 INFO L93 Difference]: Finished difference Result 6 states and 6 transitions. [2022-11-20 21:10:53,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 21:10:53,332 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 [2022-11-20 21:10:53,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:10:53,339 INFO L225 Difference]: With dead ends: 6 [2022-11-20 21:10:53,339 INFO L226 Difference]: Without dead ends: 6 [2022-11-20 21:10:53,340 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 [2022-11-20 21:10:53,344 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 21:10:53,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 21:10:53,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2022-11-20 21:10:53,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2022-11-20 21:10:53,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2022-11-20 21:10:53,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2022-11-20 21:10:53,375 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 1 [2022-11-20 21:10:53,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:10:53,376 INFO L495 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2022-11-20 21:10:53,376 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) [2022-11-20 21:10:53,376 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2022-11-20 21:10:53,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-20 21:10:53,377 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:10:53,377 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-20 21:10:53,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 21:10:53,378 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-11-20 21:10:53,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:10:53,379 INFO L85 PathProgramCache]: Analyzing trace with hash 230101, now seen corresponding path program 1 times [2022-11-20 21:10:53,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:10:53,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833505318] [2022-11-20 21:10:53,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:10:53,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:10:53,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:10:53,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:10:53,637 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:10:53,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833505318] [2022-11-20 21:10:53,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833505318] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:10:53,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:10:53,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 21:10:53,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409489022] [2022-11-20 21:10:53,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:10:53,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 21:10:53,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:10:53,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 21:10:53,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 21:10:53,641 INFO L87 Difference]: Start difference. First operand 6 states and 6 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) [2022-11-20 21:10:53,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:10:53,649 INFO L93 Difference]: Finished difference Result 4 states and 3 transitions. [2022-11-20 21:10:53,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 21:10:53,650 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 [2022-11-20 21:10:53,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:10:53,651 INFO L225 Difference]: With dead ends: 4 [2022-11-20 21:10:53,651 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 21:10:53,651 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 [2022-11-20 21:10:53,652 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 1 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 21:10:53,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 0 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 21:10:53,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 21:10:53,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 21:10:53,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-11-20 21:10:53,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 21:10:53,655 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2022-11-20 21:10:53,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:10:53,655 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 21:10:53,655 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) [2022-11-20 21:10:53,656 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 21:10:53,656 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 21:10:53,658 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 5 remaining) [2022-11-20 21:10:53,659 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2022-11-20 21:10:53,659 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (2 of 5 remaining) [2022-11-20 21:10:53,660 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (1 of 5 remaining) [2022-11-20 21:10:53,660 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-11-20 21:10:53,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 21:10:53,662 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-20 21:10:53,665 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 21:10:53,665 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 21:10:53,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:10:53 BasicIcfg [2022-11-20 21:10:53,669 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 21:10:53,669 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 21:10:53,669 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 21:10:53,670 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 21:10:53,670 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:10:49" (3/4) ... [2022-11-20 21:10:53,673 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 21:10:53,680 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-20 21:10:53,684 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-20 21:10:53,685 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 21:10:53,685 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 21:10:53,685 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 21:10:53,729 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cc05b9e-133f-402f-a051-56aa290c485b/bin/utaipan-6cKwYrpEi9/witness.graphml [2022-11-20 21:10:53,730 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 21:10:53,730 INFO L158 Benchmark]: Toolchain (without parser) took 5133.14ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 108.6MB in the beginning and 115.7MB in the end (delta: -7.1MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. [2022-11-20 21:10:53,731 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 109.1MB. Free memory is still 57.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 21:10:53,731 INFO L158 Benchmark]: CACSL2BoogieTranslator took 570.62ms. Allocated memory is still 138.4MB. Free memory was 108.6MB in the beginning and 89.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 21:10:53,731 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.35ms. Allocated memory is still 138.4MB. Free memory was 89.7MB in the beginning and 88.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 21:10:53,732 INFO L158 Benchmark]: Boogie Preprocessor took 41.31ms. Allocated memory is still 138.4MB. Free memory was 88.0MB in the beginning and 86.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 21:10:53,732 INFO L158 Benchmark]: RCFGBuilder took 458.72ms. Allocated memory is still 138.4MB. Free memory was 86.5MB in the beginning and 74.6MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 21:10:53,733 INFO L158 Benchmark]: TraceAbstraction took 3952.64ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 73.9MB in the beginning and 117.9MB in the end (delta: -44.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 21:10:53,733 INFO L158 Benchmark]: Witness Printer took 60.58ms. Allocated memory is still 167.8MB. Free memory was 117.9MB in the beginning and 115.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 21:10:53,735 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 109.1MB. Free memory is still 57.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 570.62ms. Allocated memory is still 138.4MB. Free memory was 108.6MB in the beginning and 89.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.35ms. Allocated memory is still 138.4MB. Free memory was 89.7MB in the beginning and 88.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 41.31ms. Allocated memory is still 138.4MB. Free memory was 88.0MB in the beginning and 86.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 458.72ms. Allocated memory is still 138.4MB. Free memory was 86.5MB in the beginning and 74.6MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3952.64ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 73.9MB in the beginning and 117.9MB in the end (delta: -44.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 60.58ms. Allocated memory is still 167.8MB. Free memory was 117.9MB in the beginning and 115.7MB in the end (delta: 2.2MB). 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: 3.2s, 64 PlacesBefore, 13 PlacesAfterwards, 61 TransitionsBefore, 9 TransitionsAfterwards, 132 CoEnabledTransitionPairs, 6 FixpointIterations, 43 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 75 TotalNumberOfCompositions, 95 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 95, independent: 95, independent conditional: 0, independent unconditional: 95, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 81, independent: 81, independent conditional: 0, independent unconditional: 81, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 81, independent: 81, independent conditional: 0, independent unconditional: 81, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 95, independent: 14, independent conditional: 0, independent unconditional: 14, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 81, unknown conditional: 0, unknown unconditional: 81] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 686]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 66 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 3.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 7 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=10occurred 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, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 21:10:53,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cc05b9e-133f-402f-a051-56aa290c485b/bin/utaipan-6cKwYrpEi9/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 Writing output log to file Ultimate.log Result: TRUE