./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_36-traces-ex-3_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fcd3b5-87a9-469f-a59f-d0b74e5e0961/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fcd3b5-87a9-469f-a59f-d0b74e5e0961/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fcd3b5-87a9-469f-a59f-d0b74e5e0961/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fcd3b5-87a9-469f-a59f-d0b74e5e0961/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_36-traces-ex-3_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fcd3b5-87a9-469f-a59f-d0b74e5e0961/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fcd3b5-87a9-469f-a59f-d0b74e5e0961/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 00ab4006d72abca4f35a64fe9dabb6d6d9b6871c611e836e638cfc5bf3cdc124 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:02:12,947 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:02:12,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:02:13,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:02:13,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:02:13,007 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:02:13,009 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:02:13,011 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:02:13,014 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:02:13,015 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:02:13,016 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:02:13,018 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:02:13,019 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:02:13,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:02:13,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:02:13,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:02:13,025 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:02:13,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:02:13,028 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:02:13,031 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:02:13,034 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:02:13,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:02:13,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:02:13,038 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:02:13,042 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:02:13,042 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:02:13,043 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:02:13,044 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:02:13,045 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:02:13,046 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:02:13,046 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:02:13,047 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:02:13,048 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:02:13,049 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:02:13,051 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:02:13,051 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:02:13,052 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:02:13,053 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:02:13,053 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:02:13,054 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:02:13,055 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:02:13,056 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fcd3b5-87a9-469f-a59f-d0b74e5e0961/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:02:13,084 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:02:13,084 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:02:13,085 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:02:13,085 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:02:13,086 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:02:13,086 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:02:13,086 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:02:13,086 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:02:13,086 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:02:13,087 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:02:13,087 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:02:13,087 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:02:13,087 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:02:13,088 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:02:13,088 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:02:13,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:02:13,089 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:02:13,089 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:02:13,089 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:02:13,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:02:13,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:02:13,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:02:13,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:02:13,091 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:02:13,091 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:02:13,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:02:13,091 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:02:13,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:02:13,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:02:13,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:02:13,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:02:13,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:02:13,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:02:13,093 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:02:13,093 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:02:13,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:02:13,094 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:02:13,094 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:02:13,094 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:02:13,095 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_d5fcd3b5-87a9-469f-a59f-d0b74e5e0961/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fcd3b5-87a9-469f-a59f-d0b74e5e0961/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00ab4006d72abca4f35a64fe9dabb6d6d9b6871c611e836e638cfc5bf3cdc124 [2021-11-07 01:02:13,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:02:13,340 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:02:13,343 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:02:13,344 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:02:13,345 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:02:13,346 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fcd3b5-87a9-469f-a59f-d0b74e5e0961/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/goblint-regression/13-privatized_36-traces-ex-3_true.i [2021-11-07 01:02:13,409 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fcd3b5-87a9-469f-a59f-d0b74e5e0961/bin/utaipan-UUZaoUuFF8/data/5c12f35a5/3ef2eb5541f5441698d740533c2ba17b/FLAG0160a67fe [2021-11-07 01:02:14,062 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:02:14,063 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fcd3b5-87a9-469f-a59f-d0b74e5e0961/sv-benchmarks/c/goblint-regression/13-privatized_36-traces-ex-3_true.i [2021-11-07 01:02:14,079 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fcd3b5-87a9-469f-a59f-d0b74e5e0961/bin/utaipan-UUZaoUuFF8/data/5c12f35a5/3ef2eb5541f5441698d740533c2ba17b/FLAG0160a67fe [2021-11-07 01:02:14,300 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fcd3b5-87a9-469f-a59f-d0b74e5e0961/bin/utaipan-UUZaoUuFF8/data/5c12f35a5/3ef2eb5541f5441698d740533c2ba17b [2021-11-07 01:02:14,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:02:14,306 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:02:14,314 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:02:14,314 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:02:14,319 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:02:14,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:02:14" (1/1) ... [2021-11-07 01:02:14,323 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@367388bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:14, skipping insertion in model container [2021-11-07 01:02:14,323 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:02:14" (1/1) ... [2021-11-07 01:02:14,331 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:02:14,395 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:02:14,696 WARN L228 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_d5fcd3b5-87a9-469f-a59f-d0b74e5e0961/sv-benchmarks/c/goblint-regression/13-privatized_36-traces-ex-3_true.i[1088,1101] [2021-11-07 01:02:14,886 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:02:14,898 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:02:14,910 WARN L228 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_d5fcd3b5-87a9-469f-a59f-d0b74e5e0961/sv-benchmarks/c/goblint-regression/13-privatized_36-traces-ex-3_true.i[1088,1101] [2021-11-07 01:02:14,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:02:15,027 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:02:15,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:15 WrapperNode [2021-11-07 01:02:15,028 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:02:15,029 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:02:15,030 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:02:15,030 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:02:15,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:15" (1/1) ... [2021-11-07 01:02:15,074 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:15" (1/1) ... [2021-11-07 01:02:15,103 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:02:15,104 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:02:15,105 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:02:15,105 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:02:15,115 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:15" (1/1) ... [2021-11-07 01:02:15,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:15" (1/1) ... [2021-11-07 01:02:15,123 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:15" (1/1) ... [2021-11-07 01:02:15,124 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:15" (1/1) ... [2021-11-07 01:02:15,137 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:15" (1/1) ... [2021-11-07 01:02:15,140 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:15" (1/1) ... [2021-11-07 01:02:15,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:15" (1/1) ... [2021-11-07 01:02:15,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:02:15,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:02:15,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:02:15,158 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:02:15,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:15" (1/1) ... [2021-11-07 01:02:15,168 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:02:15,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fcd3b5-87a9-469f-a59f-d0b74e5e0961/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:02:15,204 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fcd3b5-87a9-469f-a59f-d0b74e5e0961/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:02:15,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fcd3b5-87a9-469f-a59f-d0b74e5e0961/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:02:15,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 01:02:15,257 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-07 01:02:15,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:02:15,259 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-07 01:02:15,260 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-07 01:02:15,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:02:15,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 01:02:15,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:02:15,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:02:15,262 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-07 01:02:15,581 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:02:15,581 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-07 01:02:15,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:02:15 BoogieIcfgContainer [2021-11-07 01:02:15,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:02:15,585 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:02:15,585 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:02:15,589 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:02:15,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:02:14" (1/3) ... [2021-11-07 01:02:15,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@382b1017 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:02:15, skipping insertion in model container [2021-11-07 01:02:15,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:15" (2/3) ... [2021-11-07 01:02:15,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@382b1017 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:02:15, skipping insertion in model container [2021-11-07 01:02:15,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:02:15" (3/3) ... [2021-11-07 01:02:15,592 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_36-traces-ex-3_true.i [2021-11-07 01:02:15,597 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-07 01:02:15,598 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:02:15,598 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 01:02:15,598 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-07 01:02:15,623 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:02:15,624 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:02:15,624 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:02:15,624 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:02:15,625 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:02:15,625 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:02:15,625 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:02:15,625 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:02:15,626 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:02:15,626 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:02:15,627 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:02:15,627 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:02:15,627 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:02:15,628 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:02:15,628 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:02:15,628 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:02:15,629 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:02:15,629 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:02:15,629 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:02:15,630 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:02:15,633 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:02:15,634 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:02:15,634 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:02:15,634 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:02:15,635 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:02:15,635 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:02:15,640 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-07 01:02:15,693 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:02:15,700 INFO L339 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=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:02:15,701 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-07 01:02:15,744 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-07 01:02:15,765 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 60 transitions, 125 flow [2021-11-07 01:02:15,780 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 60 transitions, 125 flow [2021-11-07 01:02:15,782 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 60 transitions, 125 flow [2021-11-07 01:02:15,865 INFO L129 PetriNetUnfolder]: 1/59 cut-off events. [2021-11-07 01:02:15,866 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-07 01:02:15,869 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2021-11-07 01:02:15,871 INFO L116 LiptonReduction]: Number of co-enabled transitions 462 [2021-11-07 01:02:19,611 INFO L131 LiptonReduction]: Checked pairs total: 1421 [2021-11-07 01:02:19,612 INFO L133 LiptonReduction]: Total number of compositions: 55 [2021-11-07 01:02:19,621 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 19 places, 16 transitions, 37 flow [2021-11-07 01:02:19,633 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 44 states, 42 states have (on average 1.7380952380952381) internal successors, (73), 43 states have internal predecessors, (73), 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) [2021-11-07 01:02:19,635 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 42 states have (on average 1.7380952380952381) internal successors, (73), 43 states have internal predecessors, (73), 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) [2021-11-07 01:02:19,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-07 01:02:19,640 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:02:19,641 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-07 01:02:19,642 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-07 01:02:19,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:02:19,647 INFO L85 PathProgramCache]: Analyzing trace with hash -2102505169, now seen corresponding path program 1 times [2021-11-07 01:02:19,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:02:19,657 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056780501] [2021-11-07 01:02:19,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:02:19,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:02:19,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:02:19,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:02:19,932 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:02:19,934 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056780501] [2021-11-07 01:02:19,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056780501] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:02:19,935 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:02:19,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-07 01:02:19,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367493793] [2021-11-07 01:02:19,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:02:19,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:02:19,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:02:19,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:02:19,963 INFO L87 Difference]: Start difference. First operand has 44 states, 42 states have (on average 1.7380952380952381) internal successors, (73), 43 states have internal predecessors, (73), 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 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:02:20,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:02:20,005 INFO L93 Difference]: Finished difference Result 42 states and 67 transitions. [2021-11-07 01:02:20,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:02:20,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-07 01:02:20,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:02:20,014 INFO L225 Difference]: With dead ends: 42 [2021-11-07 01:02:20,018 INFO L226 Difference]: Without dead ends: 27 [2021-11-07 01:02:20,019 INFO L786 BasicCegarLoop]: 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 [2021-11-07 01:02:20,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-07 01:02:20,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-11-07 01:02:20,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 26 states have internal predecessors, (40), 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) [2021-11-07 01:02:20,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 40 transitions. [2021-11-07 01:02:20,057 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 40 transitions. Word has length 6 [2021-11-07 01:02:20,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:02:20,059 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 40 transitions. [2021-11-07 01:02:20,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:02:20,059 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 40 transitions. [2021-11-07 01:02:20,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 01:02:20,061 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:02:20,064 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:02:20,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 01:02:20,065 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-07 01:02:20,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:02:20,066 INFO L85 PathProgramCache]: Analyzing trace with hash 2133755223, now seen corresponding path program 1 times [2021-11-07 01:02:20,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:02:20,068 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887190631] [2021-11-07 01:02:20,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:02:20,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:02:20,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:02:20,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:02:20,267 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:02:20,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887190631] [2021-11-07 01:02:20,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887190631] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:02:20,268 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:02:20,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 01:02:20,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113900571] [2021-11-07 01:02:20,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:02:20,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:02:20,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:02:20,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:02:20,283 INFO L87 Difference]: Start difference. First operand 27 states and 40 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:02:20,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:02:20,315 INFO L93 Difference]: Finished difference Result 18 states and 25 transitions. [2021-11-07 01:02:20,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:02:20,316 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-07 01:02:20,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:02:20,316 INFO L225 Difference]: With dead ends: 18 [2021-11-07 01:02:20,316 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 01:02:20,317 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:02:20,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 01:02:20,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 01:02:20,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:02:20,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 01:02:20,318 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2021-11-07 01:02:20,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:02:20,319 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 01:02:20,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:02:20,320 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 01:02:20,320 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 01:02:20,322 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:02:20,323 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-07 01:02:20,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 01:02:20,326 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-07 01:02:20,328 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-07 01:02:20,328 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 01:02:20,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:02:20 BasicIcfg [2021-11-07 01:02:20,330 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 01:02:20,331 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 01:02:20,331 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 01:02:20,331 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 01:02:20,332 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:02:15" (3/4) ... [2021-11-07 01:02:20,335 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-07 01:02:20,341 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-11-07 01:02:20,346 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-11-07 01:02:20,347 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-07 01:02:20,348 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 01:02:20,348 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 01:02:20,395 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fcd3b5-87a9-469f-a59f-d0b74e5e0961/bin/utaipan-UUZaoUuFF8/witness.graphml [2021-11-07 01:02:20,396 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 01:02:20,401 INFO L168 Benchmark]: Toolchain (without parser) took 6090.75 ms. Allocated memory was 107.0 MB in the beginning and 136.3 MB in the end (delta: 29.4 MB). Free memory was 75.7 MB in the beginning and 88.6 MB in the end (delta: -12.9 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. [2021-11-07 01:02:20,402 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 107.0 MB. Free memory is still 61.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:02:20,403 INFO L168 Benchmark]: CACSL2BoogieTranslator took 714.81 ms. Allocated memory is still 107.0 MB. Free memory was 75.7 MB in the beginning and 73.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:02:20,403 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.79 ms. Allocated memory is still 107.0 MB. Free memory was 73.8 MB in the beginning and 72.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:02:20,404 INFO L168 Benchmark]: Boogie Preprocessor took 52.33 ms. Allocated memory is still 107.0 MB. Free memory was 71.7 MB in the beginning and 70.8 MB in the end (delta: 846.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:02:20,404 INFO L168 Benchmark]: RCFGBuilder took 426.60 ms. Allocated memory is still 107.0 MB. Free memory was 70.4 MB in the beginning and 59.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:02:20,405 INFO L168 Benchmark]: TraceAbstraction took 4745.03 ms. Allocated memory was 107.0 MB in the beginning and 136.3 MB in the end (delta: 29.4 MB). Free memory was 58.8 MB in the beginning and 90.7 MB in the end (delta: -31.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:02:20,405 INFO L168 Benchmark]: Witness Printer took 64.79 ms. Allocated memory is still 136.3 MB. Free memory was 90.7 MB in the beginning and 88.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:02:20,408 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 107.0 MB. Free memory is still 61.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 714.81 ms. Allocated memory is still 107.0 MB. Free memory was 75.7 MB in the beginning and 73.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.79 ms. Allocated memory is still 107.0 MB. Free memory was 73.8 MB in the beginning and 72.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.33 ms. Allocated memory is still 107.0 MB. Free memory was 71.7 MB in the beginning and 70.8 MB in the end (delta: 846.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 426.60 ms. Allocated memory is still 107.0 MB. Free memory was 70.4 MB in the beginning and 59.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4745.03 ms. Allocated memory was 107.0 MB in the beginning and 136.3 MB in the end (delta: 29.4 MB). Free memory was 58.8 MB in the beginning and 90.7 MB in the end (delta: -31.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 64.79 ms. Allocated memory is still 136.3 MB. Free memory was 90.7 MB in the beginning and 88.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.8s, 63 PlacesBefore, 19 PlacesAfterwards, 60 TransitionsBefore, 16 TransitionsAfterwards, 462 CoEnabledTransitionPairs, 7 FixpointIterations, 25 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 55 TotalNumberOfCompositions, 1421 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 705, positive: 563, positive conditional: 0, positive unconditional: 563, negative: 142, negative conditional: 0, negative unconditional: 142, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 340, positive: 318, positive conditional: 0, positive unconditional: 318, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 340, positive: 278, positive conditional: 0, positive unconditional: 278, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 62, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 143, positive: 84, positive conditional: 0, positive unconditional: 84, negative: 59, negative conditional: 0, negative unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 705, positive: 245, positive conditional: 0, positive unconditional: 245, negative: 120, negative conditional: 0, negative unconditional: 120, unknown: 340, unknown conditional: 0, unknown unconditional: 340] , Statistics on independence cache: Total cache size (in pairs): 54, Positive cache size: 39, Positive conditional cache size: 0, Positive unconditional cache size: 39, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 73 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 4.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 15 SDtfs, 10 SDslu, 6 SDs, 0 SdLazy, 15 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-07 01:02:20,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5fcd3b5-87a9-469f-a59f-d0b74e5e0961/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE