./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6b4ec56b 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_111f6970-8071-44b0-ae1d-aa7dc3bac093/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/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_111f6970-8071-44b0-ae1d-aa7dc3bac093/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/bin/utaipan-6cKwYrpEi9/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/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_111f6970-8071-44b0-ae1d-aa7dc3bac093/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 6dd4f5b1ff018649ffc6fcf6c400dcf6859c8fbe22bc4e1d68608a723e1e2f9d --- 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 21:00:15,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 21:00:15,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 21:00:15,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 21:00:15,174 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 21:00:15,176 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 21:00:15,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 21:00:15,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 21:00:15,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 21:00:15,188 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 21:00:15,191 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 21:00:15,194 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 21:00:15,196 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 21:00:15,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 21:00:15,201 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 21:00:15,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 21:00:15,205 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 21:00:15,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 21:00:15,214 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 21:00:15,216 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 21:00:15,218 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 21:00:15,219 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 21:00:15,221 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 21:00:15,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 21:00:15,225 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 21:00:15,226 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 21:00:15,226 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 21:00:15,230 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 21:00:15,231 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 21:00:15,232 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 21:00:15,233 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 21:00:15,233 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 21:00:15,236 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 21:00:15,238 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 21:00:15,240 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 21:00:15,241 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 21:00:15,241 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 21:00:15,242 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 21:00:15,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 21:00:15,244 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 21:00:15,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 21:00:15,247 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/bin/utaipan-6cKwYrpEi9/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-20 21:00:15,295 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 21:00:15,295 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 21:00:15,296 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 21:00:15,296 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 21:00:15,297 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 21:00:15,297 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 21:00:15,298 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 21:00:15,298 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 21:00:15,298 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 21:00:15,298 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 21:00:15,300 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 21:00:15,300 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 21:00:15,300 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 21:00:15,300 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 21:00:15,301 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 21:00:15,301 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 21:00:15,301 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 21:00:15,301 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 21:00:15,303 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 21:00:15,303 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 21:00:15,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 21:00:15,304 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 21:00:15,304 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 21:00:15,304 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 21:00:15,305 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 21:00:15,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 21:00:15,305 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-20 21:00:15,306 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-20 21:00:15,306 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-20 21:00:15,306 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 21:00:15,307 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 21:00:15,307 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 21:00:15,307 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 21:00:15,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 21:00:15,308 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 21:00:15,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:00:15,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 21:00:15,308 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 21:00:15,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 21:00:15,309 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 21:00:15,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 21:00:15,309 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 21:00:15,310 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_111f6970-8071-44b0-ae1d-aa7dc3bac093/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6dd4f5b1ff018649ffc6fcf6c400dcf6859c8fbe22bc4e1d68608a723e1e2f9d [2022-11-20 21:00:15,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 21:00:15,639 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 21:00:15,642 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 21:00:15,644 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 21:00:15,644 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 21:00:15,646 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i [2022-11-20 21:00:18,737 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 21:00:19,106 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 21:00:19,107 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i [2022-11-20 21:00:19,120 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/bin/utaipan-6cKwYrpEi9/data/9ede40f48/a00cd26ac7d0408f9ead4dc351c882b4/FLAG3f8f1cb2c [2022-11-20 21:00:19,138 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/bin/utaipan-6cKwYrpEi9/data/9ede40f48/a00cd26ac7d0408f9ead4dc351c882b4 [2022-11-20 21:00:19,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 21:00:19,149 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 21:00:19,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 21:00:19,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 21:00:19,155 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 21:00:19,156 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:00:19" (1/1) ... [2022-11-20 21:00:19,157 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4df739c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:19, skipping insertion in model container [2022-11-20 21:00:19,158 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:00:19" (1/1) ... [2022-11-20 21:00:19,167 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 21:00:19,226 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 21:00:19,428 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_111f6970-8071-44b0-ae1d-aa7dc3bac093/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i[1103,1116] [2022-11-20 21:00:19,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:00:19,644 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 21:00:19,657 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_111f6970-8071-44b0-ae1d-aa7dc3bac093/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i[1103,1116] [2022-11-20 21:00:19,686 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:00:19,733 INFO L208 MainTranslator]: Completed translation [2022-11-20 21:00:19,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:19 WrapperNode [2022-11-20 21:00:19,734 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 21:00:19,736 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 21:00:19,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 21:00:19,736 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 21:00:19,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:19" (1/1) ... [2022-11-20 21:00:19,764 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:19" (1/1) ... [2022-11-20 21:00:19,790 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2022-11-20 21:00:19,791 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 21:00:19,792 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 21:00:19,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 21:00:19,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 21:00:19,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:19" (1/1) ... [2022-11-20 21:00:19,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:19" (1/1) ... [2022-11-20 21:00:19,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:19" (1/1) ... [2022-11-20 21:00:19,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:19" (1/1) ... [2022-11-20 21:00:19,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:19" (1/1) ... [2022-11-20 21:00:19,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:19" (1/1) ... [2022-11-20 21:00:19,814 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:19" (1/1) ... [2022-11-20 21:00:19,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:19" (1/1) ... [2022-11-20 21:00:19,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 21:00:19,818 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 21:00:19,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 21:00:19,819 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 21:00:19,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:19" (1/1) ... [2022-11-20 21:00:19,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:00:19,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:00:19,861 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 21:00:19,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 21:00:19,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 21:00:19,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 21:00:19,905 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 21:00:19,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 21:00:19,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 21:00:19,906 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 21:00:19,906 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 21:00:19,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 21:00:19,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 21:00:19,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 21:00:19,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 21:00:19,908 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 21:00:20,045 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 21:00:20,048 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 21:00:20,325 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 21:00:20,332 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 21:00:20,332 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 21:00:20,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:00:20 BoogieIcfgContainer [2022-11-20 21:00:20,347 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 21:00:20,350 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 21:00:20,350 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 21:00:20,354 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 21:00:20,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:00:19" (1/3) ... [2022-11-20 21:00:20,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1457fa5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:00:20, skipping insertion in model container [2022-11-20 21:00:20,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:19" (2/3) ... [2022-11-20 21:00:20,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1457fa5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:00:20, skipping insertion in model container [2022-11-20 21:00:20,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:00:20" (3/3) ... [2022-11-20 21:00:20,358 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_2_pos.i [2022-11-20 21:00:20,410 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 21:00:20,410 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-20 21:00:20,410 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 21:00:20,533 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-20 21:00:20,574 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-20 21:00:20,595 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 79 transitions, 166 flow [2022-11-20 21:00:20,605 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 79 transitions, 166 flow [2022-11-20 21:00:20,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 79 transitions, 166 flow [2022-11-20 21:00:20,664 INFO L130 PetriNetUnfolder]: 1/78 cut-off events. [2022-11-20 21:00:20,664 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 21:00:20,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 78 events. 1/78 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2022-11-20 21:00:20,669 INFO L119 LiptonReduction]: Number of co-enabled transitions 504 [2022-11-20 21:00:24,275 INFO L134 LiptonReduction]: Checked pairs total: 1592 [2022-11-20 21:00:24,275 INFO L136 LiptonReduction]: Total number of compositions: 72 [2022-11-20 21:00:24,284 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 22 transitions, 52 flow [2022-11-20 21:00:24,300 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 69 states, 63 states have (on average 1.8412698412698412) internal successors, (116), 68 states have internal predecessors, (116), 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 21:00:24,318 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 21:00:24,324 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;@1c7c77a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 21:00:24,325 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 21:00:24,327 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 63 states have (on average 1.8412698412698412) internal successors, (116), 68 states have internal predecessors, (116), 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 21:00:24,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-20 21:00:24,332 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:00:24,333 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-20 21:00:24,333 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2022-11-20 21:00:24,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:00:24,338 INFO L85 PathProgramCache]: Analyzing trace with hash 280, now seen corresponding path program 1 times [2022-11-20 21:00:24,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:00:24,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784897569] [2022-11-20 21:00:24,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:00:24,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:00:24,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:00:24,455 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 21:00:24,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:00:24,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784897569] [2022-11-20 21:00:24,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784897569] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:00:24,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:00:24,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-20 21:00:24,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48713125] [2022-11-20 21:00:24,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:00:24,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 21:00:24,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:00:24,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 21:00:24,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 21:00:24,491 INFO L87 Difference]: Start difference. First operand has 69 states, 63 states have (on average 1.8412698412698412) internal successors, (116), 68 states have internal predecessors, (116), 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 21:00:24,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:00:24,550 INFO L93 Difference]: Finished difference Result 67 states and 114 transitions. [2022-11-20 21:00:24,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 21:00:24,553 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 21:00:24,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:00:24,563 INFO L225 Difference]: With dead ends: 67 [2022-11-20 21:00:24,563 INFO L226 Difference]: Without dead ends: 67 [2022-11-20 21:00:24,564 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 21:00:24,571 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 21:00:24,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 21:00:24,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-20 21:00:24,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-11-20 21:00:24,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 63 states have (on average 1.8095238095238095) internal successors, (114), 66 states have internal predecessors, (114), 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 21:00:24,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 114 transitions. [2022-11-20 21:00:24,626 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 114 transitions. Word has length 1 [2022-11-20 21:00:24,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:00:24,626 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 114 transitions. [2022-11-20 21:00:24,627 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 21:00:24,628 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 114 transitions. [2022-11-20 21:00:24,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-20 21:00:24,629 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:00:24,629 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-20 21:00:24,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 21:00:24,630 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2022-11-20 21:00:24,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:00:24,630 INFO L85 PathProgramCache]: Analyzing trace with hash 8549791, now seen corresponding path program 1 times [2022-11-20 21:00:24,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:00:24,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132377151] [2022-11-20 21:00:24,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:00:24,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:00:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 21:00:24,714 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 21:00:24,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 21:00:24,769 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-20 21:00:24,770 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 21:00:24,772 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2022-11-20 21:00:24,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 21:00:24,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 21:00:24,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 21:00:24,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 21:00:24,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 21:00:24,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2022-11-20 21:00:24,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 21:00:24,778 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-20 21:00:24,783 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 21:00:24,784 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 21:00:24,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:00:24 BasicIcfg [2022-11-20 21:00:24,802 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 21:00:24,803 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 21:00:24,803 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 21:00:24,803 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 21:00:24,804 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:00:20" (3/4) ... [2022-11-20 21:00:24,808 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 21:00:24,811 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 21:00:24,812 INFO L158 Benchmark]: Toolchain (without parser) took 5662.77ms. Allocated memory is still 174.1MB. Free memory was 127.5MB in the beginning and 71.4MB in the end (delta: 56.1MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB. [2022-11-20 21:00:24,812 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 123.7MB. Free memory was 66.2MB in the beginning and 66.1MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 21:00:24,813 INFO L158 Benchmark]: CACSL2BoogieTranslator took 584.22ms. Allocated memory is still 174.1MB. Free memory was 127.5MB in the beginning and 108.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 21:00:24,813 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.23ms. Allocated memory is still 174.1MB. Free memory was 108.6MB in the beginning and 106.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 21:00:24,814 INFO L158 Benchmark]: Boogie Preprocessor took 26.26ms. Allocated memory is still 174.1MB. Free memory was 106.5MB in the beginning and 105.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 21:00:24,814 INFO L158 Benchmark]: RCFGBuilder took 528.81ms. Allocated memory is still 174.1MB. Free memory was 105.0MB in the beginning and 91.9MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 21:00:24,815 INFO L158 Benchmark]: TraceAbstraction took 4452.63ms. Allocated memory is still 174.1MB. Free memory was 91.3MB in the beginning and 72.5MB in the end (delta: 18.8MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2022-11-20 21:00:24,815 INFO L158 Benchmark]: Witness Printer took 8.24ms. Allocated memory is still 174.1MB. Free memory was 72.5MB in the beginning and 71.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 21:00:24,818 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 123.7MB. Free memory was 66.2MB in the beginning and 66.1MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 584.22ms. Allocated memory is still 174.1MB. Free memory was 127.5MB in the beginning and 108.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.23ms. Allocated memory is still 174.1MB. Free memory was 108.6MB in the beginning and 106.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.26ms. Allocated memory is still 174.1MB. Free memory was 106.5MB in the beginning and 105.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 528.81ms. Allocated memory is still 174.1MB. Free memory was 105.0MB in the beginning and 91.9MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4452.63ms. Allocated memory is still 174.1MB. Free memory was 91.3MB in the beginning and 72.5MB in the end (delta: 18.8MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. * Witness Printer took 8.24ms. Allocated memory is still 174.1MB. Free memory was 72.5MB in the beginning and 71.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.7s, 82 PlacesBefore, 26 PlacesAfterwards, 79 TransitionsBefore, 22 TransitionsAfterwards, 504 CoEnabledTransitionPairs, 6 FixpointIterations, 49 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 72 TotalNumberOfCompositions, 1592 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 989, independent: 839, independent conditional: 0, independent unconditional: 839, dependent: 150, dependent conditional: 0, dependent unconditional: 150, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 458, independent: 415, independent conditional: 0, independent unconditional: 415, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 458, independent: 388, independent conditional: 0, independent unconditional: 388, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 70, independent: 27, independent conditional: 0, independent unconditional: 27, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 199, independent: 70, independent conditional: 0, independent unconditional: 70, dependent: 129, dependent conditional: 0, dependent unconditional: 129, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 989, independent: 424, independent conditional: 0, independent unconditional: 424, dependent: 107, dependent conditional: 0, dependent unconditional: 107, unknown: 458, unknown conditional: 0, unknown unconditional: 458] , Statistics on independence cache: Total cache size (in pairs): 77, Positive cache size: 60, Positive conditional cache size: 0, Positive unconditional cache size: 60, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={5:0}, mutex1={3:0}, mutex2={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L699] CALL 0 __VERIFIER_assert(glob1 == 5) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, cond=0, glob1=0, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 697]: 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 3 procedures, 95 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 4.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 4 mSDtfsCounter, 14 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-20 21:00:24,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/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_111f6970-8071-44b0-ae1d-aa7dc3bac093/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/bin/utaipan-6cKwYrpEi9/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/bin/utaipan-6cKwYrpEi9/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/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 6dd4f5b1ff018649ffc6fcf6c400dcf6859c8fbe22bc4e1d68608a723e1e2f9d --- 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 21:00:27,424 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 21:00:27,426 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 21:00:27,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 21:00:27,463 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 21:00:27,464 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 21:00:27,465 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 21:00:27,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 21:00:27,469 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 21:00:27,470 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 21:00:27,471 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 21:00:27,476 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 21:00:27,476 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 21:00:27,477 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 21:00:27,478 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 21:00:27,480 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 21:00:27,481 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 21:00:27,482 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 21:00:27,483 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 21:00:27,485 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 21:00:27,487 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 21:00:27,496 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 21:00:27,500 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 21:00:27,501 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 21:00:27,508 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 21:00:27,515 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 21:00:27,518 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 21:00:27,519 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 21:00:27,520 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 21:00:27,523 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 21:00:27,523 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 21:00:27,524 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 21:00:27,525 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 21:00:27,527 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 21:00:27,545 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 21:00:27,546 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 21:00:27,546 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 21:00:27,547 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 21:00:27,547 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 21:00:27,548 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 21:00:27,549 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 21:00:27,553 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/bin/utaipan-6cKwYrpEi9/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-11-20 21:00:27,602 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 21:00:27,602 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 21:00:27,603 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 21:00:27,603 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 21:00:27,604 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 21:00:27,605 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 21:00:27,605 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 21:00:27,605 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 21:00:27,606 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 21:00:27,606 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 21:00:27,607 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 21:00:27,607 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 21:00:27,608 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 21:00:27,608 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 21:00:27,609 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 21:00:27,609 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 21:00:27,609 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 21:00:27,609 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 21:00:27,610 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 21:00:27,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 21:00:27,610 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-20 21:00:27,610 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-20 21:00:27,611 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-20 21:00:27,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 21:00:27,611 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 21:00:27,611 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 21:00:27,612 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 21:00:27,612 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 21:00:27,612 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 21:00:27,612 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 21:00:27,613 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 21:00:27,613 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 21:00:27,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:00:27,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 21:00:27,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 21:00:27,614 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-20 21:00:27,615 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 21:00:27,615 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 21:00:27,615 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 21:00:27,615 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6dd4f5b1ff018649ffc6fcf6c400dcf6859c8fbe22bc4e1d68608a723e1e2f9d [2022-11-20 21:00:27,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 21:00:27,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 21:00:27,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 21:00:27,998 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 21:00:28,000 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 21:00:28,002 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i [2022-11-20 21:00:31,337 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 21:00:31,678 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 21:00:31,691 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i [2022-11-20 21:00:31,704 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/bin/utaipan-6cKwYrpEi9/data/cddd5e06a/35afdaf8d8c047ccb0268d7b478446ff/FLAG14facb64c [2022-11-20 21:00:31,719 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/bin/utaipan-6cKwYrpEi9/data/cddd5e06a/35afdaf8d8c047ccb0268d7b478446ff [2022-11-20 21:00:31,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 21:00:31,723 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 21:00:31,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 21:00:31,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 21:00:31,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 21:00:31,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:00:31" (1/1) ... [2022-11-20 21:00:31,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55aa3ce3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:31, skipping insertion in model container [2022-11-20 21:00:31,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:00:31" (1/1) ... [2022-11-20 21:00:31,739 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 21:00:31,802 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 21:00:31,957 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_111f6970-8071-44b0-ae1d-aa7dc3bac093/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i[1103,1116] [2022-11-20 21:00:32,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:00:32,183 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 21:00:32,207 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_111f6970-8071-44b0-ae1d-aa7dc3bac093/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i[1103,1116] [2022-11-20 21:00:32,263 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:00:32,363 INFO L208 MainTranslator]: Completed translation [2022-11-20 21:00:32,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:32 WrapperNode [2022-11-20 21:00:32,364 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 21:00:32,372 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 21:00:32,372 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 21:00:32,372 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 21:00:32,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:32" (1/1) ... [2022-11-20 21:00:32,396 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:32" (1/1) ... [2022-11-20 21:00:32,420 INFO L138 Inliner]: procedures = 166, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 50 [2022-11-20 21:00:32,421 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 21:00:32,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 21:00:32,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 21:00:32,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 21:00:32,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:32" (1/1) ... [2022-11-20 21:00:32,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:32" (1/1) ... [2022-11-20 21:00:32,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:32" (1/1) ... [2022-11-20 21:00:32,454 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:32" (1/1) ... [2022-11-20 21:00:32,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:32" (1/1) ... [2022-11-20 21:00:32,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:32" (1/1) ... [2022-11-20 21:00:32,472 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:32" (1/1) ... [2022-11-20 21:00:32,479 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:32" (1/1) ... [2022-11-20 21:00:32,481 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 21:00:32,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 21:00:32,488 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 21:00:32,488 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 21:00:32,489 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:32" (1/1) ... [2022-11-20 21:00:32,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:00:32,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:00:32,529 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 21:00:32,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 21:00:32,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 21:00:32,589 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 21:00:32,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 21:00:32,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 21:00:32,590 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 21:00:32,590 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 21:00:32,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 21:00:32,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 21:00:32,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 21:00:32,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 21:00:32,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 21:00:32,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 21:00:32,592 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 21:00:32,792 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 21:00:32,795 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 21:00:33,006 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 21:00:33,013 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 21:00:33,014 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 21:00:33,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:00:33 BoogieIcfgContainer [2022-11-20 21:00:33,016 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 21:00:33,018 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 21:00:33,018 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 21:00:33,021 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 21:00:33,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:00:31" (1/3) ... [2022-11-20 21:00:33,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10dfeea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:00:33, skipping insertion in model container [2022-11-20 21:00:33,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:00:32" (2/3) ... [2022-11-20 21:00:33,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10dfeea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:00:33, skipping insertion in model container [2022-11-20 21:00:33,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:00:33" (3/3) ... [2022-11-20 21:00:33,024 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_2_pos.i [2022-11-20 21:00:33,044 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 21:00:33,044 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-20 21:00:33,045 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 21:00:33,120 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-20 21:00:33,159 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-20 21:00:33,176 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 80 transitions, 168 flow [2022-11-20 21:00:33,179 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 80 transitions, 168 flow [2022-11-20 21:00:33,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 80 transitions, 168 flow [2022-11-20 21:00:33,244 INFO L130 PetriNetUnfolder]: 1/79 cut-off events. [2022-11-20 21:00:33,251 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 21:00:33,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 79 events. 1/79 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2022-11-20 21:00:33,257 INFO L119 LiptonReduction]: Number of co-enabled transitions 504 [2022-11-20 21:00:40,094 INFO L134 LiptonReduction]: Checked pairs total: 1592 [2022-11-20 21:00:40,094 INFO L136 LiptonReduction]: Total number of compositions: 75 [2022-11-20 21:00:40,103 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 22 transitions, 52 flow [2022-11-20 21:00:40,119 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 69 states, 63 states have (on average 1.8412698412698412) internal successors, (116), 68 states have internal predecessors, (116), 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 21:00:40,138 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 21:00:40,145 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;@51355ca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 21:00:40,145 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 21:00:40,147 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 63 states have (on average 1.8412698412698412) internal successors, (116), 68 states have internal predecessors, (116), 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 21:00:40,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-20 21:00:40,153 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:00:40,154 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-20 21:00:40,154 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2022-11-20 21:00:40,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:00:40,160 INFO L85 PathProgramCache]: Analyzing trace with hash 285, now seen corresponding path program 1 times [2022-11-20 21:00:40,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 21:00:40,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [266193490] [2022-11-20 21:00:40,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:00:40,174 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 21:00:40,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 21:00:40,183 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 21:00:40,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 21:00:40,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:00:40,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 21:00:40,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:00:40,272 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 21:00:40,272 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 21:00:40,273 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 21:00:40,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [266193490] [2022-11-20 21:00:40,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [266193490] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:00:40,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:00:40,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-20 21:00:40,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81612771] [2022-11-20 21:00:40,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:00:40,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 21:00:40,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 21:00:40,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 21:00:40,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 21:00:40,319 INFO L87 Difference]: Start difference. First operand has 69 states, 63 states have (on average 1.8412698412698412) internal successors, (116), 68 states have internal predecessors, (116), 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 21:00:40,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:00:40,392 INFO L93 Difference]: Finished difference Result 67 states and 114 transitions. [2022-11-20 21:00:40,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 21:00:40,405 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 21:00:40,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:00:40,418 INFO L225 Difference]: With dead ends: 67 [2022-11-20 21:00:40,419 INFO L226 Difference]: Without dead ends: 67 [2022-11-20 21:00:40,420 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 21:00:40,423 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 21:00:40,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 21:00:40,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-20 21:00:40,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-11-20 21:00:40,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 63 states have (on average 1.8095238095238095) internal successors, (114), 66 states have internal predecessors, (114), 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 21:00:40,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 114 transitions. [2022-11-20 21:00:40,478 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 114 transitions. Word has length 1 [2022-11-20 21:00:40,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:00:40,485 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 114 transitions. [2022-11-20 21:00:40,485 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 21:00:40,485 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 114 transitions. [2022-11-20 21:00:40,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-20 21:00:40,486 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:00:40,502 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-20 21:00:40,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-20 21:00:40,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 21:00:40,713 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2022-11-20 21:00:40,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:00:40,713 INFO L85 PathProgramCache]: Analyzing trace with hash 8730618, now seen corresponding path program 1 times [2022-11-20 21:00:40,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 21:00:40,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1330868357] [2022-11-20 21:00:40,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:00:40,715 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 21:00:40,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 21:00:40,718 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 21:00:40,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 21:00:40,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 21:00:40,821 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 21:00:40,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 21:00:40,866 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-20 21:00:40,866 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 21:00:40,868 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2022-11-20 21:00:40,870 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 21:00:40,871 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 21:00:40,871 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 21:00:40,871 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 21:00:40,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 21:00:40,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2022-11-20 21:00:40,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 21:00:41,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 21:00:41,075 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-20 21:00:41,083 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 21:00:41,083 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 21:00:41,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:00:41 BasicIcfg [2022-11-20 21:00:41,110 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 21:00:41,111 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 21:00:41,112 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 21:00:41,112 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 21:00:41,112 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:00:33" (3/4) ... [2022-11-20 21:00:41,115 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 21:00:41,116 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 21:00:41,117 INFO L158 Benchmark]: Toolchain (without parser) took 9392.98ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 61.4MB in the beginning and 35.0MB in the end (delta: 26.4MB). Peak memory consumption was 44.7MB. Max. memory is 16.1GB. [2022-11-20 21:00:41,117 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 58.7MB. Free memory was 37.3MB in the beginning and 37.3MB in the end (delta: 44.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 21:00:41,118 INFO L158 Benchmark]: CACSL2BoogieTranslator took 639.45ms. Allocated memory is still 83.9MB. Free memory was 61.2MB in the beginning and 61.5MB in the end (delta: -350.1kB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2022-11-20 21:00:41,118 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.76ms. Allocated memory is still 83.9MB. Free memory was 61.5MB in the beginning and 59.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 21:00:41,121 INFO L158 Benchmark]: Boogie Preprocessor took 59.16ms. Allocated memory is still 83.9MB. Free memory was 59.4MB in the beginning and 58.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 21:00:41,127 INFO L158 Benchmark]: RCFGBuilder took 533.47ms. Allocated memory is still 83.9MB. Free memory was 58.0MB in the beginning and 43.0MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 21:00:41,130 INFO L158 Benchmark]: TraceAbstraction took 8092.58ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 42.3MB in the beginning and 35.9MB in the end (delta: 6.4MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. [2022-11-20 21:00:41,130 INFO L158 Benchmark]: Witness Printer took 4.36ms. Allocated memory is still 100.7MB. Free memory was 35.9MB in the beginning and 35.0MB in the end (delta: 868.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 21:00:41,133 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 58.7MB. Free memory was 37.3MB in the beginning and 37.3MB in the end (delta: 44.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 639.45ms. Allocated memory is still 83.9MB. Free memory was 61.2MB in the beginning and 61.5MB in the end (delta: -350.1kB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.76ms. Allocated memory is still 83.9MB. Free memory was 61.5MB in the beginning and 59.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 59.16ms. Allocated memory is still 83.9MB. Free memory was 59.4MB in the beginning and 58.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 533.47ms. Allocated memory is still 83.9MB. Free memory was 58.0MB in the beginning and 43.0MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 8092.58ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 42.3MB in the beginning and 35.9MB in the end (delta: 6.4MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. * Witness Printer took 4.36ms. Allocated memory is still 100.7MB. Free memory was 35.9MB in the beginning and 35.0MB in the end (delta: 868.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.9s, 83 PlacesBefore, 26 PlacesAfterwards, 80 TransitionsBefore, 22 TransitionsAfterwards, 504 CoEnabledTransitionPairs, 6 FixpointIterations, 52 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 75 TotalNumberOfCompositions, 1592 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1006, independent: 856, independent conditional: 0, independent unconditional: 856, dependent: 150, dependent conditional: 0, dependent unconditional: 150, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 464, independent: 421, independent conditional: 0, independent unconditional: 421, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 464, independent: 394, independent conditional: 0, independent unconditional: 394, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 70, independent: 27, independent conditional: 0, independent unconditional: 27, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 327, independent: 109, independent conditional: 0, independent unconditional: 109, dependent: 218, dependent conditional: 0, dependent unconditional: 218, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1006, independent: 435, independent conditional: 0, independent unconditional: 435, dependent: 107, dependent conditional: 0, dependent unconditional: 107, unknown: 464, unknown conditional: 0, unknown unconditional: 464] , Statistics on independence cache: Total cache size (in pairs): 80, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={7:0}, mutex1={3:0}, mutex2={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=0] [L699] CALL 0 __VERIFIER_assert(glob1 == 5) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, cond=0, glob1=0, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 697]: 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 3 procedures, 96 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 7.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 4 mSDtfsCounter, 14 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-20 21:00:41,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_111f6970-8071-44b0-ae1d-aa7dc3bac093/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: UNKNOWN: Overapproximated counterexample