./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac494c24-2111-415d-ac4b-3083504b9854/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac494c24-2111-415d-ac4b-3083504b9854/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac494c24-2111-415d-ac4b-3083504b9854/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac494c24-2111-415d-ac4b-3083504b9854/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac494c24-2111-415d-ac4b-3083504b9854/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac494c24-2111-415d-ac4b-3083504b9854/bin/utaipan-aC7eJsxGYH --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 5810db9e04eaaf68f2d5e8f47b6f306a494391110fbd2d6436879e3ba39873f3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:14:08,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:14:08,941 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:14:08,987 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:14:08,987 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:14:08,989 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:14:08,990 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:14:08,993 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:14:08,995 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:14:08,996 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:14:08,997 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:14:08,999 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:14:08,999 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:14:09,001 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:14:09,002 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:14:09,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:14:09,005 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:14:09,006 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:14:09,008 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:14:09,010 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:14:09,012 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:14:09,014 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:14:09,015 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:14:09,016 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:14:09,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:14:09,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:14:09,021 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:14:09,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:14:09,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:14:09,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:14:09,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:14:09,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:14:09,026 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:14:09,027 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:14:09,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:14:09,029 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:14:09,030 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:14:09,030 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:14:09,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:14:09,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:14:09,032 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:14:09,037 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac494c24-2111-415d-ac4b-3083504b9854/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 05:14:09,074 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:14:09,075 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:14:09,076 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:14:09,076 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:14:09,077 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:14:09,077 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:14:09,077 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:14:09,077 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:14:09,083 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:14:09,084 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:14:09,085 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:14:09,085 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:14:09,085 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:14:09,086 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:14:09,086 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:14:09,087 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:14:09,087 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:14:09,087 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:14:09,087 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:14:09,087 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:14:09,088 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:14:09,088 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:14:09,088 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:14:09,088 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:14:09,089 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:14:09,089 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:14:09,089 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:14:09,089 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:14:09,090 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:14:09,091 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:14:09,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:14:09,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:14:09,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:14:09,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:14:09,093 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:14:09,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:14:09,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:14:09,093 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:14:09,093 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:14:09,094 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_ac494c24-2111-415d-ac4b-3083504b9854/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac494c24-2111-415d-ac4b-3083504b9854/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5810db9e04eaaf68f2d5e8f47b6f306a494391110fbd2d6436879e3ba39873f3 [2021-11-03 05:14:09,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:14:09,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:14:09,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:14:09,437 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:14:09,439 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:14:09,440 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac494c24-2111-415d-ac4b-3083504b9854/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i [2021-11-03 05:14:09,521 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac494c24-2111-415d-ac4b-3083504b9854/bin/utaipan-aC7eJsxGYH/data/a715c20e4/7bcce8c7eb4b4d9c9949902b305e140c/FLAG3dc8938b2 [2021-11-03 05:14:10,206 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:14:10,206 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac494c24-2111-415d-ac4b-3083504b9854/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i [2021-11-03 05:14:10,221 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac494c24-2111-415d-ac4b-3083504b9854/bin/utaipan-aC7eJsxGYH/data/a715c20e4/7bcce8c7eb4b4d9c9949902b305e140c/FLAG3dc8938b2 [2021-11-03 05:14:10,457 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac494c24-2111-415d-ac4b-3083504b9854/bin/utaipan-aC7eJsxGYH/data/a715c20e4/7bcce8c7eb4b4d9c9949902b305e140c [2021-11-03 05:14:10,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:14:10,462 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:14:10,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:14:10,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:14:10,470 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:14:10,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:14:10" (1/1) ... [2021-11-03 05:14:10,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d2e88c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:14:10, skipping insertion in model container [2021-11-03 05:14:10,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:14:10" (1/1) ... [2021-11-03 05:14:10,479 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:14:10,537 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:14:10,723 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_ac494c24-2111-415d-ac4b-3083504b9854/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i[1103,1116] [2021-11-03 05:14:10,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:14:10,953 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:14:10,970 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_ac494c24-2111-415d-ac4b-3083504b9854/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i[1103,1116] [2021-11-03 05:14:11,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:14:11,079 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:14:11,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:14:11 WrapperNode [2021-11-03 05:14:11,080 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:14:11,081 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:14:11,082 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:14:11,082 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:14:11,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:14:11" (1/1) ... [2021-11-03 05:14:11,126 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:14:11" (1/1) ... [2021-11-03 05:14:11,157 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:14:11,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:14:11,158 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:14:11,158 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:14:11,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:14:11" (1/1) ... [2021-11-03 05:14:11,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:14:11" (1/1) ... [2021-11-03 05:14:11,170 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:14:11" (1/1) ... [2021-11-03 05:14:11,170 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:14:11" (1/1) ... [2021-11-03 05:14:11,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:14:11" (1/1) ... [2021-11-03 05:14:11,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:14:11" (1/1) ... [2021-11-03 05:14:11,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:14:11" (1/1) ... [2021-11-03 05:14:11,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:14:11,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:14:11,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:14:11,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:14:11,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:14:11" (1/1) ... [2021-11-03 05:14:11,196 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:14:11,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac494c24-2111-415d-ac4b-3083504b9854/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:14:11,227 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac494c24-2111-415d-ac4b-3083504b9854/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:14:11,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac494c24-2111-415d-ac4b-3083504b9854/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:14:11,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 05:14:11,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 05:14:11,276 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-03 05:14:11,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:14:11,276 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-03 05:14:11,276 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-03 05:14:11,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:14:11,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 05:14:11,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:14:11,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:14:11,279 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-03 05:14:11,657 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:14:11,658 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-03 05:14:11,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:14:11 BoogieIcfgContainer [2021-11-03 05:14:11,660 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:14:11,661 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:14:11,661 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:14:11,664 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:14:11,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:14:10" (1/3) ... [2021-11-03 05:14:11,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66e05246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:14:11, skipping insertion in model container [2021-11-03 05:14:11,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:14:11" (2/3) ... [2021-11-03 05:14:11,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66e05246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:14:11, skipping insertion in model container [2021-11-03 05:14:11,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:14:11" (3/3) ... [2021-11-03 05:14:11,667 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_neg.i [2021-11-03 05:14:11,672 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-03 05:14:11,673 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:14:11,673 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-03 05:14:11,673 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-03 05:14:11,696 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:14:11,697 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:14:11,697 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:14:11,697 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:14:11,697 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:14:11,697 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:14:11,698 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:14:11,698 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:14:11,698 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:14:11,698 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:14:11,698 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:14:11,699 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:14:11,699 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:14:11,699 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:14:11,699 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:14:11,700 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:14:11,700 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:14:11,700 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:14:11,701 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:14:11,701 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:14:11,701 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:14:11,701 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:14:11,702 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:14:11,702 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:14:11,704 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:14:11,705 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:14:11,705 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:14:11,705 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:14:11,705 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:14:11,706 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:14:11,706 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:14:11,712 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-03 05:14:11,755 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:14:11,761 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 [2021-11-03 05:14:11,761 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-03 05:14:11,774 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-03 05:14:11,784 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 63 transitions, 134 flow [2021-11-03 05:14:11,786 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 63 transitions, 134 flow [2021-11-03 05:14:11,788 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 63 transitions, 134 flow [2021-11-03 05:14:11,819 INFO L129 PetriNetUnfolder]: 1/62 cut-off events. [2021-11-03 05:14:11,819 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-03 05:14:11,821 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 62 events. 1/62 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2021-11-03 05:14:11,823 INFO L116 LiptonReduction]: Number of co-enabled transitions 392 [2021-11-03 05:14:15,489 INFO L131 LiptonReduction]: Checked pairs total: 1223 [2021-11-03 05:14:15,490 INFO L133 LiptonReduction]: Total number of compositions: 51 [2021-11-03 05:14:15,497 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 18 transitions, 44 flow [2021-11-03 05:14:15,508 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 38 states, 36 states have (on average 1.6944444444444444) internal successors, (61), 37 states have internal predecessors, (61), 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) [2021-11-03 05:14:15,510 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 36 states have (on average 1.6944444444444444) internal successors, (61), 37 states have internal predecessors, (61), 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) [2021-11-03 05:14:15,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-03 05:14:15,514 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:14:15,515 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-03 05:14:15,515 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-03 05:14:15,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:14:15,520 INFO L85 PathProgramCache]: Analyzing trace with hash 6968243, now seen corresponding path program 1 times [2021-11-03 05:14:15,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 05:14:15,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744538384] [2021-11-03 05:14:15,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:14:15,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:14:15,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 05:14:15,642 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-03 05:14:15,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 05:14:15,690 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-03 05:14:15,692 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-03 05:14:15,693 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 05:14:15,695 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-03 05:14:15,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 05:14:15,698 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-11-03 05:14:15,702 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-03 05:14:15,702 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 05:14:15,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 05:14:15 BasicIcfg [2021-11-03 05:14:15,719 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 05:14:15,719 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 05:14:15,719 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 05:14:15,720 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 05:14:15,720 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:14:11" (3/4) ... [2021-11-03 05:14:15,722 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-03 05:14:15,755 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac494c24-2111-415d-ac4b-3083504b9854/bin/utaipan-aC7eJsxGYH/witness.graphml [2021-11-03 05:14:15,756 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 05:14:15,758 INFO L168 Benchmark]: Toolchain (without parser) took 5294.05 ms. Allocated memory was 115.3 MB in the beginning and 140.5 MB in the end (delta: 25.2 MB). Free memory was 83.1 MB in the beginning and 72.1 MB in the end (delta: 11.0 MB). Peak memory consumption was 39.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:14:15,758 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 77.6 MB. Free memory is still 43.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:14:15,759 INFO L168 Benchmark]: CACSL2BoogieTranslator took 614.81 ms. Allocated memory is still 115.3 MB. Free memory was 82.9 MB in the beginning and 64.7 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-11-03 05:14:15,759 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.66 ms. Allocated memory is still 115.3 MB. Free memory was 64.7 MB in the beginning and 62.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:14:15,760 INFO L168 Benchmark]: Boogie Preprocessor took 23.98 ms. Allocated memory is still 115.3 MB. Free memory was 62.7 MB in the beginning and 61.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:14:15,760 INFO L168 Benchmark]: RCFGBuilder took 477.37 ms. Allocated memory is still 115.3 MB. Free memory was 61.5 MB in the beginning and 91.3 MB in the end (delta: -29.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-11-03 05:14:15,761 INFO L168 Benchmark]: TraceAbstraction took 4057.64 ms. Allocated memory was 115.3 MB in the beginning and 140.5 MB in the end (delta: 25.2 MB). Free memory was 90.9 MB in the beginning and 74.2 MB in the end (delta: 16.7 MB). Peak memory consumption was 41.2 MB. Max. memory is 16.1 GB. [2021-11-03 05:14:15,762 INFO L168 Benchmark]: Witness Printer took 36.33 ms. Allocated memory is still 140.5 MB. Free memory was 74.2 MB in the beginning and 72.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:14:15,765 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 77.6 MB. Free memory is still 43.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 614.81 ms. Allocated memory is still 115.3 MB. Free memory was 82.9 MB in the beginning and 64.7 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 75.66 ms. Allocated memory is still 115.3 MB. Free memory was 64.7 MB in the beginning and 62.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.98 ms. Allocated memory is still 115.3 MB. Free memory was 62.7 MB in the beginning and 61.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 477.37 ms. Allocated memory is still 115.3 MB. Free memory was 61.5 MB in the beginning and 91.3 MB in the end (delta: -29.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4057.64 ms. Allocated memory was 115.3 MB in the beginning and 140.5 MB in the end (delta: 25.2 MB). Free memory was 90.9 MB in the beginning and 74.2 MB in the end (delta: 16.7 MB). Peak memory consumption was 41.2 MB. Max. memory is 16.1 GB. * Witness Printer took 36.33 ms. Allocated memory is still 140.5 MB. Free memory was 74.2 MB in the beginning and 72.1 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: 3.7s, 66 PlacesBefore, 21 PlacesAfterwards, 63 TransitionsBefore, 18 TransitionsAfterwards, 392 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 51 TotalNumberOfCompositions, 1223 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 821, positive: 690, positive conditional: 0, positive unconditional: 690, negative: 131, negative conditional: 0, negative unconditional: 131, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 378, positive: 338, positive conditional: 0, positive unconditional: 338, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 378, positive: 310, positive conditional: 0, positive unconditional: 310, negative: 68, negative conditional: 0, negative unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 68, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 142, positive: 46, positive conditional: 0, positive unconditional: 46, negative: 96, negative conditional: 0, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 821, positive: 352, positive conditional: 0, positive unconditional: 352, negative: 91, negative conditional: 0, negative unconditional: 91, unknown: 378, unknown conditional: 0, unknown unconditional: 378] , Statistics on independence cache: Total cache size (in pairs): 66, Positive cache size: 50, Positive conditional cache size: 0, Positive unconditional cache size: 50, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - 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: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, mutex1={7:0}, mutex2={9:0}] [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [arg={0:0}, glob1=0, mutex1={7:0}, mutex2={9:0}] - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 79 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 3.9s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! [2021-11-03 05:14:15,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac494c24-2111-415d-ac4b-3083504b9854/bin/utaipan-aC7eJsxGYH/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE