./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.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_b749700f-d6aa-4628-a924-08dbb1afc787/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b749700f-d6aa-4628-a924-08dbb1afc787/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_b749700f-d6aa-4628-a924-08dbb1afc787/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b749700f-d6aa-4628-a924-08dbb1afc787/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b749700f-d6aa-4628-a924-08dbb1afc787/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_b749700f-d6aa-4628-a924-08dbb1afc787/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 64b25926fb6c7e27855d812b862643321480d6d0eb308c80224ee02bfde27516 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:13:56,669 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:13:56,671 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:13:56,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:13:56,703 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:13:56,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:13:56,707 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:13:56,709 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:13:56,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:13:56,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:13:56,714 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:13:56,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:13:56,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:13:56,717 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:13:56,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:13:56,720 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:13:56,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:13:56,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:13:56,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:13:56,730 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:13:56,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:13:56,737 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:13:56,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:13:56,740 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:13:56,744 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:13:56,747 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:13:56,748 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:13:56,750 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:13:56,753 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:13:56,755 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:13:56,756 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:13:56,757 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:13:56,758 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:13:56,760 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:13:56,762 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:13:56,762 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:13:56,763 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:13:56,763 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:13:56,764 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:13:56,765 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:13:56,765 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:13:56,766 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b749700f-d6aa-4628-a924-08dbb1afc787/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 05:13:56,817 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:13:56,817 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:13:56,818 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:13:56,819 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:13:56,819 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:13:56,819 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:13:56,819 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:13:56,820 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:13:56,826 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:13:56,826 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:13:56,827 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:13:56,828 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:13:56,828 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:13:56,828 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:13:56,829 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:13:56,829 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:13:56,830 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:13:56,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:13:56,830 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:13:56,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:13:56,830 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:13:56,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:13:56,831 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:13:56,831 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:13:56,831 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:13:56,832 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:13:56,832 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:13:56,832 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:13:56,832 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:13:56,834 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:13:56,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:13:56,835 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:13:56,835 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:13:56,836 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:13:56,836 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:13:56,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:13:56,836 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:13:56,837 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:13:56,837 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:13:56,837 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_b749700f-d6aa-4628-a924-08dbb1afc787/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b749700f-d6aa-4628-a924-08dbb1afc787/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64b25926fb6c7e27855d812b862643321480d6d0eb308c80224ee02bfde27516 [2021-11-03 05:13:57,078 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:13:57,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:13:57,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:13:57,106 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:13:57,107 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:13:57,108 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b749700f-d6aa-4628-a924-08dbb1afc787/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i [2021-11-03 05:13:57,191 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b749700f-d6aa-4628-a924-08dbb1afc787/bin/utaipan-aC7eJsxGYH/data/157b88594/1ba22652d25640f39067f736ddf8a4f2/FLAG970cffb4a [2021-11-03 05:13:57,820 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:13:57,827 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b749700f-d6aa-4628-a924-08dbb1afc787/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i [2021-11-03 05:13:57,852 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b749700f-d6aa-4628-a924-08dbb1afc787/bin/utaipan-aC7eJsxGYH/data/157b88594/1ba22652d25640f39067f736ddf8a4f2/FLAG970cffb4a [2021-11-03 05:13:58,044 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b749700f-d6aa-4628-a924-08dbb1afc787/bin/utaipan-aC7eJsxGYH/data/157b88594/1ba22652d25640f39067f736ddf8a4f2 [2021-11-03 05:13:58,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:13:58,051 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:13:58,055 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:13:58,055 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:13:58,059 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:13:58,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:13:58" (1/1) ... [2021-11-03 05:13:58,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16ed8090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:13:58, skipping insertion in model container [2021-11-03 05:13:58,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:13:58" (1/1) ... [2021-11-03 05:13:58,070 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:13:58,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:13:58,324 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_b749700f-d6aa-4628-a924-08dbb1afc787/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i[1097,1110] [2021-11-03 05:13:58,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:13:58,455 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:13:58,466 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_b749700f-d6aa-4628-a924-08dbb1afc787/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i[1097,1110] [2021-11-03 05:13:58,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:13:58,531 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:13:58,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:13:58 WrapperNode [2021-11-03 05:13:58,531 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:13:58,532 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:13:58,533 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:13:58,533 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:13:58,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:13:58" (1/1) ... [2021-11-03 05:13:58,553 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:13:58" (1/1) ... [2021-11-03 05:13:58,572 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:13:58,573 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:13:58,573 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:13:58,573 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:13:58,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:13:58" (1/1) ... [2021-11-03 05:13:58,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:13:58" (1/1) ... [2021-11-03 05:13:58,584 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:13:58" (1/1) ... [2021-11-03 05:13:58,584 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:13:58" (1/1) ... [2021-11-03 05:13:58,589 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:13:58" (1/1) ... [2021-11-03 05:13:58,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:13:58" (1/1) ... [2021-11-03 05:13:58,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:13:58" (1/1) ... [2021-11-03 05:13:58,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:13:58,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:13:58,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:13:58,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:13:58,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:13:58" (1/1) ... [2021-11-03 05:13:58,604 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:13:58,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b749700f-d6aa-4628-a924-08dbb1afc787/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:13:58,638 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b749700f-d6aa-4628-a924-08dbb1afc787/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:13:58,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b749700f-d6aa-4628-a924-08dbb1afc787/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:13:58,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 05:13:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-03 05:13:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:13:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-03 05:13:58,687 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-03 05:13:58,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:13:58,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 05:13:58,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:13:58,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:13:58,689 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 05:13:58,926 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:13:58,926 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-03 05:13:58,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:13:58 BoogieIcfgContainer [2021-11-03 05:13:58,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:13:58,930 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:13:58,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:13:58,933 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:13:58,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:13:58" (1/3) ... [2021-11-03 05:13:58,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53c1a434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:13:58, skipping insertion in model container [2021-11-03 05:13:58,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:13:58" (2/3) ... [2021-11-03 05:13:58,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53c1a434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:13:58, skipping insertion in model container [2021-11-03 05:13:58,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:13:58" (3/3) ... [2021-11-03 05:13:58,936 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_pos.i [2021-11-03 05:13:58,941 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-03 05:13:58,941 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:13:58,941 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-03 05:13:58,942 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-03 05:13:58,965 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:13:58,965 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:13:58,965 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:13:58,966 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:13:58,966 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:13:58,966 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:13:58,967 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:13:58,967 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:13:58,967 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:13:58,968 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:13:58,968 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:13:58,968 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:13:58,969 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:13:58,969 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:13:58,969 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:13:58,970 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:13:58,970 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:13:58,971 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:13:58,971 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:13:58,971 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:13:58,975 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:13:58,975 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:13:58,975 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:13:58,976 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:13:58,976 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:13:58,976 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:13:58,980 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-03 05:13:59,026 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:13:59,036 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 05:13:59,039 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-03 05:13:59,057 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-03 05:13:59,082 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 58 transitions, 121 flow [2021-11-03 05:13:59,093 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 58 transitions, 121 flow [2021-11-03 05:13:59,094 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 58 transitions, 121 flow [2021-11-03 05:13:59,134 INFO L129 PetriNetUnfolder]: 1/57 cut-off events. [2021-11-03 05:13:59,135 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-03 05:13:59,137 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 57 events. 1/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2021-11-03 05:13:59,139 INFO L116 LiptonReduction]: Number of co-enabled transitions 400 [2021-11-03 05:14:02,987 INFO L131 LiptonReduction]: Checked pairs total: 1113 [2021-11-03 05:14:02,987 INFO L133 LiptonReduction]: Total number of compositions: 55 [2021-11-03 05:14:02,996 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 13 transitions, 31 flow [2021-11-03 05:14:03,007 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 32 states, 31 states have (on average 1.6451612903225807) internal successors, (51), 31 states have internal predecessors, (51), 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 05:14:03,009 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 31 states have (on average 1.6451612903225807) internal successors, (51), 31 states have internal predecessors, (51), 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 05:14:03,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-03 05:14:03,015 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:14:03,015 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-03 05:14:03,016 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-03 05:14:03,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:14:03,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1987153026, now seen corresponding path program 1 times [2021-11-03 05:14:03,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 05:14:03,031 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239266036] [2021-11-03 05:14:03,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:14:03,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:14:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:14:03,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:14:03,333 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 05:14:03,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239266036] [2021-11-03 05:14:03,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239266036] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:14:03,334 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:14:03,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-03 05:14:03,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749855142] [2021-11-03 05:14:03,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:14:03,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 05:14:03,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:14:03,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:14:03,358 INFO L87 Difference]: Start difference. First operand has 32 states, 31 states have (on average 1.6451612903225807) internal successors, (51), 31 states have internal predecessors, (51), 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) [2021-11-03 05:14:03,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:14:03,383 INFO L93 Difference]: Finished difference Result 29 states and 45 transitions. [2021-11-03 05:14:03,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:14:03,384 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 [2021-11-03 05:14:03,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:14:03,394 INFO L225 Difference]: With dead ends: 29 [2021-11-03 05:14:03,394 INFO L226 Difference]: Without dead ends: 29 [2021-11-03 05:14:03,395 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 [2021-11-03 05:14:03,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-11-03 05:14:03,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-11-03 05:14:03,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.6071428571428572) internal successors, (45), 28 states have internal predecessors, (45), 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 05:14:03,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 45 transitions. [2021-11-03 05:14:03,423 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 45 transitions. Word has length 6 [2021-11-03 05:14:03,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:14:03,423 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 45 transitions. [2021-11-03 05:14:03,423 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) [2021-11-03 05:14:03,424 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 45 transitions. [2021-11-03 05:14:03,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-03 05:14:03,424 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:14:03,425 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:14:03,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 05:14:03,425 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-03 05:14:03,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:14:03,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1597900958, now seen corresponding path program 1 times [2021-11-03 05:14:03,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 05:14:03,427 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861617168] [2021-11-03 05:14:03,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:14:03,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:14:03,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:14:03,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:14:03,475 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 05:14:03,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861617168] [2021-11-03 05:14:03,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861617168] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:14:03,476 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:14:03,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 05:14:03,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833465594] [2021-11-03 05:14:03,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:14:03,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 05:14:03,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:14:03,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:14:03,479 INFO L87 Difference]: Start difference. First operand 29 states and 45 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 05:14:03,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:14:03,508 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2021-11-03 05:14:03,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:14:03,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2021-11-03 05:14:03,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:14:03,509 INFO L225 Difference]: With dead ends: 25 [2021-11-03 05:14:03,509 INFO L226 Difference]: Without dead ends: 25 [2021-11-03 05:14:03,510 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:14:03,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-11-03 05:14:03,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2021-11-03 05:14:03,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 22 states have internal predecessors, (28), 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 05:14:03,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2021-11-03 05:14:03,514 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 9 [2021-11-03 05:14:03,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:14:03,515 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2021-11-03 05:14:03,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 05:14:03,515 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2021-11-03 05:14:03,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-03 05:14:03,516 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:14:03,516 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:14:03,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 05:14:03,516 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-03 05:14:03,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:14:03,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1740897758, now seen corresponding path program 2 times [2021-11-03 05:14:03,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 05:14:03,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714892595] [2021-11-03 05:14:03,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:14:03,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:14:03,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:14:03,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:14:03,683 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 05:14:03,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714892595] [2021-11-03 05:14:03,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714892595] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:14:03,684 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:14:03,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 05:14:03,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843206345] [2021-11-03 05:14:03,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:14:03,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 05:14:03,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:14:03,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:14:03,692 INFO L87 Difference]: Start difference. First operand 23 states and 28 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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 05:14:03,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:14:03,720 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2021-11-03 05:14:03,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:14:03,721 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2021-11-03 05:14:03,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:14:03,722 INFO L225 Difference]: With dead ends: 20 [2021-11-03 05:14:03,722 INFO L226 Difference]: Without dead ends: 16 [2021-11-03 05:14:03,723 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 [2021-11-03 05:14:03,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-03 05:14:03,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-03 05:14:03,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 15 states have internal predecessors, (19), 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 05:14:03,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2021-11-03 05:14:03,725 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 9 [2021-11-03 05:14:03,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:14:03,725 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-11-03 05:14:03,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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 05:14:03,726 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2021-11-03 05:14:03,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-03 05:14:03,726 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:14:03,726 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:14:03,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-03 05:14:03,727 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-03 05:14:03,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:14:03,727 INFO L85 PathProgramCache]: Analyzing trace with hash -403692573, now seen corresponding path program 1 times [2021-11-03 05:14:03,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 05:14:03,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608610856] [2021-11-03 05:14:03,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:14:03,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:14:03,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:14:03,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:14:03,813 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 05:14:03,813 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608610856] [2021-11-03 05:14:03,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608610856] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:14:03,815 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:14:03,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 05:14:03,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415707258] [2021-11-03 05:14:03,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:14:03,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 05:14:03,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:14:03,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:14:03,821 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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 05:14:03,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:14:03,842 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2021-11-03 05:14:03,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:14:03,842 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2021-11-03 05:14:03,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:14:03,845 INFO L225 Difference]: With dead ends: 12 [2021-11-03 05:14:03,845 INFO L226 Difference]: Without dead ends: 12 [2021-11-03 05:14:03,847 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:14:03,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-11-03 05:14:03,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-11-03 05:14:03,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:14:03,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2021-11-03 05:14:03,856 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 10 [2021-11-03 05:14:03,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:14:03,856 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2021-11-03 05:14:03,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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 05:14:03,857 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2021-11-03 05:14:03,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-03 05:14:03,858 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:14:03,858 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:14:03,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-03 05:14:03,859 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-03 05:14:03,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:14:03,861 INFO L85 PathProgramCache]: Analyzing trace with hash 377141103, now seen corresponding path program 1 times [2021-11-03 05:14:03,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 05:14:03,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7220893] [2021-11-03 05:14:03,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:14:03,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:14:03,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 05:14:03,906 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-03 05:14:03,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 05:14:03,982 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-03 05:14:03,984 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-03 05:14:03,991 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 05:14:03,993 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-03 05:14:03,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-03 05:14:03,997 INFO L731 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2021-11-03 05:14:04,001 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-03 05:14:04,002 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 05:14:04,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 05:14:04 BasicIcfg [2021-11-03 05:14:04,050 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 05:14:04,051 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 05:14:04,051 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 05:14:04,051 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 05:14:04,052 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:13:58" (3/4) ... [2021-11-03 05:14:04,053 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-03 05:14:04,091 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b749700f-d6aa-4628-a924-08dbb1afc787/bin/utaipan-aC7eJsxGYH/witness.graphml [2021-11-03 05:14:04,091 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 05:14:04,093 INFO L168 Benchmark]: Toolchain (without parser) took 6040.50 ms. Allocated memory was 119.5 MB in the beginning and 153.1 MB in the end (delta: 33.6 MB). Free memory was 87.2 MB in the beginning and 111.0 MB in the end (delta: -23.8 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:14:04,093 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 119.5 MB. Free memory was 71.9 MB in the beginning and 71.8 MB in the end (delta: 62.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:14:04,093 INFO L168 Benchmark]: CACSL2BoogieTranslator took 477.23 ms. Allocated memory is still 119.5 MB. Free memory was 87.0 MB in the beginning and 84.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-03 05:14:04,094 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.73 ms. Allocated memory is still 119.5 MB. Free memory was 84.4 MB in the beginning and 82.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:14:04,094 INFO L168 Benchmark]: Boogie Preprocessor took 22.53 ms. Allocated memory is still 119.5 MB. Free memory was 82.4 MB in the beginning and 81.5 MB in the end (delta: 976.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:14:04,095 INFO L168 Benchmark]: RCFGBuilder took 332.13 ms. Allocated memory is still 119.5 MB. Free memory was 81.5 MB in the beginning and 70.3 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-03 05:14:04,095 INFO L168 Benchmark]: TraceAbstraction took 5120.84 ms. Allocated memory was 119.5 MB in the beginning and 153.1 MB in the end (delta: 33.6 MB). Free memory was 69.4 MB in the beginning and 113.1 MB in the end (delta: -43.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:14:04,096 INFO L168 Benchmark]: Witness Printer took 40.21 ms. Allocated memory is still 153.1 MB. Free memory was 113.1 MB in the beginning and 111.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:14:04,098 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 119.5 MB. Free memory was 71.9 MB in the beginning and 71.8 MB in the end (delta: 62.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 477.23 ms. Allocated memory is still 119.5 MB. Free memory was 87.0 MB in the beginning and 84.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.73 ms. Allocated memory is still 119.5 MB. Free memory was 84.4 MB in the beginning and 82.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.53 ms. Allocated memory is still 119.5 MB. Free memory was 82.4 MB in the beginning and 81.5 MB in the end (delta: 976.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 332.13 ms. Allocated memory is still 119.5 MB. Free memory was 81.5 MB in the beginning and 70.3 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5120.84 ms. Allocated memory was 119.5 MB in the beginning and 153.1 MB in the end (delta: 33.6 MB). Free memory was 69.4 MB in the beginning and 113.1 MB in the end (delta: -43.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 40.21 ms. Allocated memory is still 153.1 MB. Free memory was 113.1 MB in the beginning and 111.0 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, 61 PlacesBefore, 17 PlacesAfterwards, 58 TransitionsBefore, 13 TransitionsAfterwards, 400 CoEnabledTransitionPairs, 7 FixpointIterations, 25 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 55 TotalNumberOfCompositions, 1113 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 630, positive: 514, positive conditional: 0, positive unconditional: 514, negative: 116, negative conditional: 0, negative unconditional: 116, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 312, positive: 285, positive conditional: 0, positive unconditional: 285, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 312, positive: 277, positive conditional: 0, positive unconditional: 277, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 35, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 116, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 98, negative conditional: 0, negative unconditional: 98, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 630, positive: 229, positive conditional: 0, positive unconditional: 229, negative: 89, negative conditional: 0, negative unconditional: 89, unknown: 312, unknown conditional: 0, unknown unconditional: 312] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 25, Positive conditional cache size: 0, Positive unconditional cache size: 25, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - 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 g = 0; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L693] 0 pthread_t id; [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={6:0}, arg={0:0}, D={5:0}, g=0] [L687] 1 g = 17 VAL [A={6:0}, arg={0:0}, arg={0:0}, D={5:0}, g=17] [L690] 1 return ((void *)0); [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\result={0:0}, A={6:0}, arg={0:0}, arg={0:0}, D={5:0}, g=17] - UnprovableResult [Line: 694]: 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, 70 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 4.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 26 SDtfs, 18 SDslu, 10 SDs, 0 SdLazy, 37 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 14, 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, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 181 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-03 05:14:04,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b749700f-d6aa-4628-a924-08dbb1afc787/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE