./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread/reorder_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b5237d83 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_25cbfb47-55b9-490f-abab-46ae89ab0d62/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cbfb47-55b9-490f-abab-46ae89ab0d62/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cbfb47-55b9-490f-abab-46ae89ab0d62/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cbfb47-55b9-490f-abab-46ae89ab0d62/bin/utaipan-g80aRyZoba/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/reorder_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cbfb47-55b9-490f-abab-46ae89ab0d62/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cbfb47-55b9-490f-abab-46ae89ab0d62/bin/utaipan-g80aRyZoba --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 7c8e5f65b78a025b6376ca00ad63a807363d8e09dfbfc133c782b166d87996a6 --- 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-b5237d8 [2022-11-22 02:03:34,242 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:03:34,245 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:03:34,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:03:34,284 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:03:34,288 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:03:34,291 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:03:34,295 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:03:34,297 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:03:34,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:03:34,305 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:03:34,308 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:03:34,308 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:03:34,311 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:03:34,313 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:03:34,316 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:03:34,318 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:03:34,319 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:03:34,320 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:03:34,328 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:03:34,330 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:03:34,332 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:03:34,333 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:03:34,334 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:03:34,345 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:03:34,346 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:03:34,346 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:03:34,348 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:03:34,348 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:03:34,349 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:03:34,351 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:03:34,352 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:03:34,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:03:34,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:03:34,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:03:34,356 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:03:34,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:03:34,357 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:03:34,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:03:34,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:03:34,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:03:34,360 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cbfb47-55b9-490f-abab-46ae89ab0d62/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-22 02:03:34,397 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:03:34,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:03:34,398 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:03:34,398 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:03:34,399 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:03:34,399 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:03:34,399 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:03:34,399 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:03:34,400 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:03:34,400 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:03:34,401 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:03:34,401 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:03:34,401 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:03:34,401 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:03:34,402 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:03:34,402 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:03:34,402 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:03:34,402 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:03:34,403 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-22 02:03:34,403 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-22 02:03:34,403 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:03:34,404 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:03:34,404 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 02:03:34,404 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:03:34,404 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:03:34,404 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:03:34,405 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-22 02:03:34,405 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-22 02:03:34,405 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-22 02:03:34,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:03:34,406 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 02:03:34,406 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:03:34,406 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:03:34,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:03:34,407 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:03:34,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:03:34,407 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:03:34,407 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:03:34,407 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:03:34,408 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:03:34,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:03:34,408 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:03:34,408 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_25cbfb47-55b9-490f-abab-46ae89ab0d62/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cbfb47-55b9-490f-abab-46ae89ab0d62/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c8e5f65b78a025b6376ca00ad63a807363d8e09dfbfc133c782b166d87996a6 [2022-11-22 02:03:34,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:03:34,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:03:34,754 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:03:34,755 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:03:34,756 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:03:34,757 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cbfb47-55b9-490f-abab-46ae89ab0d62/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/pthread/reorder_2.i [2022-11-22 02:03:37,820 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:03:38,140 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:03:38,141 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cbfb47-55b9-490f-abab-46ae89ab0d62/sv-benchmarks/c/pthread/reorder_2.i [2022-11-22 02:03:38,165 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cbfb47-55b9-490f-abab-46ae89ab0d62/bin/utaipan-g80aRyZoba/data/d3522c1e2/57e40f386cd5466a909f0b5c8da5bc34/FLAG46afaa785 [2022-11-22 02:03:38,186 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cbfb47-55b9-490f-abab-46ae89ab0d62/bin/utaipan-g80aRyZoba/data/d3522c1e2/57e40f386cd5466a909f0b5c8da5bc34 [2022-11-22 02:03:38,189 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:03:38,191 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:03:38,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:03:38,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:03:38,199 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:03:38,200 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:03:38" (1/1) ... [2022-11-22 02:03:38,201 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8fa13b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:38, skipping insertion in model container [2022-11-22 02:03:38,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:03:38" (1/1) ... [2022-11-22 02:03:38,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:03:38,271 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:03:38,914 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_25cbfb47-55b9-490f-abab-46ae89ab0d62/sv-benchmarks/c/pthread/reorder_2.i[59793,59806] [2022-11-22 02:03:38,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:03:38,926 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:03:38,989 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_25cbfb47-55b9-490f-abab-46ae89ab0d62/sv-benchmarks/c/pthread/reorder_2.i[59793,59806] [2022-11-22 02:03:38,999 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:03:39,084 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:03:39,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:39 WrapperNode [2022-11-22 02:03:39,085 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:03:39,086 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:03:39,086 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:03:39,086 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:03:39,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:39" (1/1) ... [2022-11-22 02:03:39,115 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:39" (1/1) ... [2022-11-22 02:03:39,165 INFO L138 Inliner]: procedures = 370, calls = 36, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 135 [2022-11-22 02:03:39,166 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:03:39,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:03:39,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:03:39,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:03:39,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:39" (1/1) ... [2022-11-22 02:03:39,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:39" (1/1) ... [2022-11-22 02:03:39,181 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:39" (1/1) ... [2022-11-22 02:03:39,181 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:39" (1/1) ... [2022-11-22 02:03:39,188 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:39" (1/1) ... [2022-11-22 02:03:39,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:39" (1/1) ... [2022-11-22 02:03:39,194 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:39" (1/1) ... [2022-11-22 02:03:39,195 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:39" (1/1) ... [2022-11-22 02:03:39,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:03:39,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:03:39,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:03:39,214 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:03:39,215 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:39" (1/1) ... [2022-11-22 02:03:39,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:03:39,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cbfb47-55b9-490f-abab-46ae89ab0d62/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:03:39,257 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cbfb47-55b9-490f-abab-46ae89ab0d62/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:03:39,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cbfb47-55b9-490f-abab-46ae89ab0d62/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:03:39,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:03:39,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:03:39,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:03:39,299 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2022-11-22 02:03:39,300 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2022-11-22 02:03:39,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:03:39,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:03:39,300 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2022-11-22 02:03:39,300 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2022-11-22 02:03:39,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:03:39,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:03:39,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:03:39,302 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 02:03:39,481 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:03:39,485 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:03:39,868 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:03:39,882 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:03:39,882 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-22 02:03:39,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:03:39 BoogieIcfgContainer [2022-11-22 02:03:39,884 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:03:39,886 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:03:39,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:03:39,890 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:03:39,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:03:38" (1/3) ... [2022-11-22 02:03:39,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca18481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:03:39, skipping insertion in model container [2022-11-22 02:03:39,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:39" (2/3) ... [2022-11-22 02:03:39,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca18481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:03:39, skipping insertion in model container [2022-11-22 02:03:39,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:03:39" (3/3) ... [2022-11-22 02:03:39,897 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_2.i [2022-11-22 02:03:39,918 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:03:39,918 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-11-22 02:03:39,918 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 02:03:40,008 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-22 02:03:40,041 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 02:03:40,057 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 175 places, 185 transitions, 392 flow [2022-11-22 02:03:40,060 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 175 places, 185 transitions, 392 flow [2022-11-22 02:03:40,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 175 places, 185 transitions, 392 flow [2022-11-22 02:03:40,218 INFO L130 PetriNetUnfolder]: 35/410 cut-off events. [2022-11-22 02:03:40,219 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-22 02:03:40,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 430 conditions, 410 events. 35/410 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1688 event pairs, 0 based on Foata normal form. 0/299 useless extension candidates. Maximal degree in co-relation 217. Up to 8 conditions per place. [2022-11-22 02:03:40,231 INFO L119 LiptonReduction]: Number of co-enabled transitions 2694 [2022-11-22 02:03:52,339 INFO L134 LiptonReduction]: Checked pairs total: 4574 [2022-11-22 02:03:52,340 INFO L136 LiptonReduction]: Total number of compositions: 201 [2022-11-22 02:03:52,348 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53 places, 52 transitions, 126 flow [2022-11-22 02:03:52,391 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 410 states, 302 states have (on average 2.6324503311258276) internal successors, (795), 409 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:52,408 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:03:52,415 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;@6fbe5310, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:03:52,415 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2022-11-22 02:03:52,418 INFO L276 IsEmpty]: Start isEmpty. Operand has 410 states, 302 states have (on average 2.6324503311258276) internal successors, (795), 409 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:52,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-22 02:03:52,423 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:52,424 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-22 02:03:52,424 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2022-11-22 02:03:52,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:52,429 INFO L85 PathProgramCache]: Analyzing trace with hash 672, now seen corresponding path program 1 times [2022-11-22 02:03:52,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:52,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95448173] [2022-11-22 02:03:52,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:52,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:52,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:52,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:52,629 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:52,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95448173] [2022-11-22 02:03:52,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95448173] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:52,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:52,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-22 02:03:52,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182729995] [2022-11-22 02:03:52,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:52,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 02:03:52,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:52,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 02:03:52,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 02:03:52,678 INFO L87 Difference]: Start difference. First operand has 410 states, 302 states have (on average 2.6324503311258276) internal successors, (795), 409 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:52,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:52,804 INFO L93 Difference]: Finished difference Result 402 states and 787 transitions. [2022-11-22 02:03:52,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 02:03:52,807 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 [2022-11-22 02:03:52,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:52,828 INFO L225 Difference]: With dead ends: 402 [2022-11-22 02:03:52,828 INFO L226 Difference]: Without dead ends: 393 [2022-11-22 02:03:52,829 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 [2022-11-22 02:03:52,834 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:52,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:03:52,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-11-22 02:03:52,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2022-11-22 02:03:52,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 298 states have (on average 2.5838926174496644) internal successors, (770), 392 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:52,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 770 transitions. [2022-11-22 02:03:52,920 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 770 transitions. Word has length 1 [2022-11-22 02:03:52,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:52,921 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 770 transitions. [2022-11-22 02:03:52,921 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) [2022-11-22 02:03:52,922 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 770 transitions. [2022-11-22 02:03:52,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-22 02:03:52,922 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:52,922 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-22 02:03:52,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:03:52,923 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2022-11-22 02:03:52,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:52,924 INFO L85 PathProgramCache]: Analyzing trace with hash 21348, now seen corresponding path program 1 times [2022-11-22 02:03:52,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:52,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824954047] [2022-11-22 02:03:52,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:52,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:53,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:53,302 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:53,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824954047] [2022-11-22 02:03:53,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824954047] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:53,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:53,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:03:53,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741810331] [2022-11-22 02:03:53,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:53,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:03:53,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:53,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:03:53,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:03:53,306 INFO L87 Difference]: Start difference. First operand 393 states and 770 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:53,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:53,374 INFO L93 Difference]: Finished difference Result 373 states and 732 transitions. [2022-11-22 02:03:53,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:03:53,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-11-22 02:03:53,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:53,377 INFO L225 Difference]: With dead ends: 373 [2022-11-22 02:03:53,377 INFO L226 Difference]: Without dead ends: 373 [2022-11-22 02:03:53,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:03:53,378 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 39 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:53,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 6 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:03:53,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-11-22 02:03:53,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 373. [2022-11-22 02:03:53,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 286 states have (on average 2.5594405594405596) internal successors, (732), 372 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:53,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 732 transitions. [2022-11-22 02:03:53,392 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 732 transitions. Word has length 2 [2022-11-22 02:03:53,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:53,393 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 732 transitions. [2022-11-22 02:03:53,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:53,394 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 732 transitions. [2022-11-22 02:03:53,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-22 02:03:53,394 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:53,394 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-22 02:03:53,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:03:53,395 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2022-11-22 02:03:53,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:53,395 INFO L85 PathProgramCache]: Analyzing trace with hash 21349, now seen corresponding path program 1 times [2022-11-22 02:03:53,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:53,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724274386] [2022-11-22 02:03:53,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:53,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:53,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:53,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:53,601 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:53,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724274386] [2022-11-22 02:03:53,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724274386] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:53,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:53,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:03:53,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414523109] [2022-11-22 02:03:53,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:53,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:03:53,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:53,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:03:53,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:03:53,605 INFO L87 Difference]: Start difference. First operand 373 states and 732 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:53,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:53,680 INFO L93 Difference]: Finished difference Result 353 states and 694 transitions. [2022-11-22 02:03:53,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:03:53,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-11-22 02:03:53,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:53,686 INFO L225 Difference]: With dead ends: 353 [2022-11-22 02:03:53,686 INFO L226 Difference]: Without dead ends: 353 [2022-11-22 02:03:53,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:03:53,690 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 39 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:53,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 6 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:03:53,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-11-22 02:03:53,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 353. [2022-11-22 02:03:53,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 274 states have (on average 2.5328467153284673) internal successors, (694), 352 states have internal predecessors, (694), 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) [2022-11-22 02:03:53,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 694 transitions. [2022-11-22 02:03:53,716 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 694 transitions. Word has length 2 [2022-11-22 02:03:53,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:53,716 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 694 transitions. [2022-11-22 02:03:53,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:53,716 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 694 transitions. [2022-11-22 02:03:53,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-22 02:03:53,717 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:53,717 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-22 02:03:53,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:03:53,717 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2022-11-22 02:03:53,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:53,718 INFO L85 PathProgramCache]: Analyzing trace with hash 21621, now seen corresponding path program 1 times [2022-11-22 02:03:53,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:53,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325221936] [2022-11-22 02:03:53,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:53,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:53,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:53,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:53,883 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:53,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325221936] [2022-11-22 02:03:53,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325221936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:53,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:53,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:03:53,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006263927] [2022-11-22 02:03:53,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:53,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:03:53,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:53,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:03:53,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:03:53,886 INFO L87 Difference]: Start difference. First operand 353 states and 694 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:53,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:53,961 INFO L93 Difference]: Finished difference Result 333 states and 656 transitions. [2022-11-22 02:03:53,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:03:53,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-11-22 02:03:53,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:53,964 INFO L225 Difference]: With dead ends: 333 [2022-11-22 02:03:53,964 INFO L226 Difference]: Without dead ends: 333 [2022-11-22 02:03:53,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:03:53,968 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 35 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:53,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 6 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:03:53,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2022-11-22 02:03:54,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2022-11-22 02:03:54,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 262 states have (on average 2.50381679389313) internal successors, (656), 332 states have internal predecessors, (656), 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) [2022-11-22 02:03:54,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 656 transitions. [2022-11-22 02:03:54,023 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 656 transitions. Word has length 2 [2022-11-22 02:03:54,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:54,024 INFO L495 AbstractCegarLoop]: Abstraction has 333 states and 656 transitions. [2022-11-22 02:03:54,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:54,025 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 656 transitions. [2022-11-22 02:03:54,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-22 02:03:54,026 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:54,026 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-22 02:03:54,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:03:54,026 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2022-11-22 02:03:54,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:54,027 INFO L85 PathProgramCache]: Analyzing trace with hash 21622, now seen corresponding path program 1 times [2022-11-22 02:03:54,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:54,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952391712] [2022-11-22 02:03:54,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:54,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:54,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:03:54,120 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 02:03:54,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:03:54,196 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 02:03:54,196 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 02:03:54,197 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 29 remaining) [2022-11-22 02:03:54,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (27 of 29 remaining) [2022-11-22 02:03:54,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 29 remaining) [2022-11-22 02:03:54,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 29 remaining) [2022-11-22 02:03:54,207 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 29 remaining) [2022-11-22 02:03:54,208 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 29 remaining) [2022-11-22 02:03:54,208 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 29 remaining) [2022-11-22 02:03:54,210 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 29 remaining) [2022-11-22 02:03:54,211 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 29 remaining) [2022-11-22 02:03:54,211 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 29 remaining) [2022-11-22 02:03:54,211 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 29 remaining) [2022-11-22 02:03:54,211 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 29 remaining) [2022-11-22 02:03:54,211 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 29 remaining) [2022-11-22 02:03:54,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 29 remaining) [2022-11-22 02:03:54,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 29 remaining) [2022-11-22 02:03:54,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 29 remaining) [2022-11-22 02:03:54,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 29 remaining) [2022-11-22 02:03:54,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 29 remaining) [2022-11-22 02:03:54,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 29 remaining) [2022-11-22 02:03:54,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 29 remaining) [2022-11-22 02:03:54,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 29 remaining) [2022-11-22 02:03:54,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 29 remaining) [2022-11-22 02:03:54,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 29 remaining) [2022-11-22 02:03:54,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 29 remaining) [2022-11-22 02:03:54,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 29 remaining) [2022-11-22 02:03:54,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (3 of 29 remaining) [2022-11-22 02:03:54,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 29 remaining) [2022-11-22 02:03:54,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 29 remaining) [2022-11-22 02:03:54,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 29 remaining) [2022-11-22 02:03:54,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 02:03:54,218 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-22 02:03:54,223 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-22 02:03:54,224 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:03:54,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:03:54 BasicIcfg [2022-11-22 02:03:54,250 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:03:54,250 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:03:54,250 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:03:54,251 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:03:54,251 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:03:39" (3/4) ... [2022-11-22 02:03:54,253 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-22 02:03:54,299 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cbfb47-55b9-490f-abab-46ae89ab0d62/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 02:03:54,299 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:03:54,300 INFO L158 Benchmark]: Toolchain (without parser) took 16109.13ms. Allocated memory was 109.1MB in the beginning and 176.2MB in the end (delta: 67.1MB). Free memory was 47.9MB in the beginning and 121.0MB in the end (delta: -73.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:03:54,300 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 109.1MB. Free memory is still 63.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:03:54,300 INFO L158 Benchmark]: CACSL2BoogieTranslator took 891.38ms. Allocated memory was 109.1MB in the beginning and 146.8MB in the end (delta: 37.7MB). Free memory was 47.7MB in the beginning and 88.6MB in the end (delta: -40.9MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2022-11-22 02:03:54,300 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.31ms. Allocated memory is still 146.8MB. Free memory was 88.6MB in the beginning and 85.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:03:54,301 INFO L158 Benchmark]: Boogie Preprocessor took 31.22ms. Allocated memory is still 146.8MB. Free memory was 85.5MB in the beginning and 83.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:03:54,301 INFO L158 Benchmark]: RCFGBuilder took 685.66ms. Allocated memory is still 146.8MB. Free memory was 83.4MB in the beginning and 63.4MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-22 02:03:54,302 INFO L158 Benchmark]: TraceAbstraction took 14363.41ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 62.5MB in the beginning and 123.1MB in the end (delta: -60.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:03:54,302 INFO L158 Benchmark]: Witness Printer took 48.83ms. Allocated memory is still 176.2MB. Free memory was 123.1MB in the beginning and 121.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:03:54,304 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 109.1MB. Free memory is still 63.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 891.38ms. Allocated memory was 109.1MB in the beginning and 146.8MB in the end (delta: 37.7MB). Free memory was 47.7MB in the beginning and 88.6MB in the end (delta: -40.9MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.31ms. Allocated memory is still 146.8MB. Free memory was 88.6MB in the beginning and 85.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.22ms. Allocated memory is still 146.8MB. Free memory was 85.5MB in the beginning and 83.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 685.66ms. Allocated memory is still 146.8MB. Free memory was 83.4MB in the beginning and 63.4MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 14363.41ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 62.5MB in the beginning and 123.1MB in the end (delta: -60.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 48.83ms. Allocated memory is still 176.2MB. Free memory was 123.1MB in the beginning and 121.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.3s, 175 PlacesBefore, 53 PlacesAfterwards, 185 TransitionsBefore, 52 TransitionsAfterwards, 2694 CoEnabledTransitionPairs, 7 FixpointIterations, 74 TrivialSequentialCompositions, 93 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 23 ConcurrentYvCompositions, 11 ChoiceCompositions, 201 TotalNumberOfCompositions, 4574 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3279, independent: 3239, independent conditional: 0, independent unconditional: 3239, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1944, independent: 1931, independent conditional: 0, independent unconditional: 1931, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1944, independent: 1931, independent conditional: 0, independent unconditional: 1931, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 13, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 45, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3279, independent: 1308, independent conditional: 0, independent unconditional: 1308, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 1944, unknown conditional: 0, unknown unconditional: 1944] , Statistics on independence cache: Total cache size (in pairs): 107, Positive cache size: 103, Positive conditional cache size: 0, Positive unconditional cache size: 103, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L1236] static int iSet = 2; [L1237] static int iCheck = 2; [L1238] static int a = 0; [L1239] static int b = 0; [L1245] int i, err; [L1246] COND TRUE argc != 1 [L1247] COND FALSE !(argc != 3) [L1255] EXPR \read(iSet) [L1255] pthread_t setPool[iSet]; [L1256] EXPR \read(iCheck) [L1256] pthread_t checkPool[iCheck]; [L1257] i = 0 VAL [\old(argc)=3, \read(iCheck)=2, \read(iSet)=1073741824, a=0, argc=3, argv={1073741825:1073741826}, argv={1073741825:1073741826}, b=0, checkPool={11:0}, i=0, iCheck={10:0}, iSet={9:0}, setPool={13:0}] [L1257] EXPR \read(iSet) [L1257] COND TRUE i < iSet - UnprovableResult [Line: 1292]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1244]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1264]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1258]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 186 locations, 29 error locations. Started 1 CEGAR loops. OverallTime: 14.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 113 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 113 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 146 IncrementalHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 30 mSDtfsCounter, 146 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=410occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-22 02:03:54,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cbfb47-55b9-490f-abab-46ae89ab0d62/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)