./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6857c5-a2c9-489e-bda0-7e3a369c180e/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6857c5-a2c9-489e-bda0-7e3a369c180e/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6857c5-a2c9-489e-bda0-7e3a369c180e/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6857c5-a2c9-489e-bda0-7e3a369c180e/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6857c5-a2c9-489e-bda0-7e3a369c180e/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6857c5-a2c9-489e-bda0-7e3a369c180e/bin/utaipan-gh47qXpMRh --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 4fac19196210fd8dde96f5954c583dd6bd52f0c23546782896f7a0038bedd43c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 13:12:21,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:12:21,078 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:12:21,091 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:12:21,092 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:12:21,092 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:12:21,093 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:12:21,094 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:12:21,096 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:12:21,096 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:12:21,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:12:21,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:12:21,098 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:12:21,099 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:12:21,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:12:21,100 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:12:21,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:12:21,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:12:21,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:12:21,104 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:12:21,105 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:12:21,106 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:12:21,106 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:12:21,107 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:12:21,109 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:12:21,110 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:12:21,110 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:12:21,111 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:12:21,111 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:12:21,112 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:12:21,112 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:12:21,112 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:12:21,113 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:12:21,113 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:12:21,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:12:21,114 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:12:21,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:12:21,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:12:21,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:12:21,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:12:21,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:12:21,117 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6857c5-a2c9-489e-bda0-7e3a369c180e/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 13:12:21,133 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:12:21,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:12:21,133 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:12:21,133 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:12:21,134 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:12:21,134 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:12:21,134 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:12:21,134 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:12:21,135 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:12:21,135 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:12:21,135 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:12:21,135 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:12:21,135 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:12:21,135 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:12:21,135 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:12:21,136 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:12:21,136 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:12:21,136 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:12:21,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:12:21,137 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 13:12:21,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:12:21,137 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 13:12:21,137 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:12:21,137 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:12:21,137 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:12:21,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:12:21,138 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 13:12:21,138 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:12:21,138 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:12:21,138 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:12:21,138 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:12:21,139 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:12:21,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:12:21,139 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:12:21,139 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:12:21,139 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:12:21,140 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:12:21,140 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:12:21,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:12:21,140 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:12:21,140 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:12:21,140 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6857c5-a2c9-489e-bda0-7e3a369c180e/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6857c5-a2c9-489e-bda0-7e3a369c180e/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fac19196210fd8dde96f5954c583dd6bd52f0c23546782896f7a0038bedd43c [2022-12-14 13:12:21,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:12:21,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:12:21,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:12:21,333 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:12:21,334 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:12:21,335 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6857c5-a2c9-489e-bda0-7e3a369c180e/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2022-12-14 13:12:23,852 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:12:24,029 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:12:24,029 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6857c5-a2c9-489e-bda0-7e3a369c180e/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2022-12-14 13:12:24,038 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6857c5-a2c9-489e-bda0-7e3a369c180e/bin/utaipan-gh47qXpMRh/data/8699bf658/c048cb4af69f4b97bd5ac8377641b004/FLAGd84e944c4 [2022-12-14 13:12:24,434 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6857c5-a2c9-489e-bda0-7e3a369c180e/bin/utaipan-gh47qXpMRh/data/8699bf658/c048cb4af69f4b97bd5ac8377641b004 [2022-12-14 13:12:24,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:12:24,437 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:12:24,438 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:12:24,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:12:24,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:12:24,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:12:24" (1/1) ... [2022-12-14 13:12:24,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c84bbb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:12:24, skipping insertion in model container [2022-12-14 13:12:24,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:12:24" (1/1) ... [2022-12-14 13:12:24,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:12:24,468 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:12:24,576 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6857c5-a2c9-489e-bda0-7e3a369c180e/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i[1097,1110] [2022-12-14 13:12:24,668 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:12:24,677 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:12:24,686 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6857c5-a2c9-489e-bda0-7e3a369c180e/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i[1097,1110] [2022-12-14 13:12:24,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:12:24,725 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:12:24,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:12:24 WrapperNode [2022-12-14 13:12:24,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:12:24,726 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:12:24,726 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:12:24,726 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:12:24,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:12:24" (1/1) ... [2022-12-14 13:12:24,742 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:12:24" (1/1) ... [2022-12-14 13:12:24,755 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2022-12-14 13:12:24,755 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:12:24,755 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:12:24,755 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:12:24,756 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:12:24,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:12:24" (1/1) ... [2022-12-14 13:12:24,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:12:24" (1/1) ... [2022-12-14 13:12:24,763 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:12:24" (1/1) ... [2022-12-14 13:12:24,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:12:24" (1/1) ... [2022-12-14 13:12:24,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:12:24" (1/1) ... [2022-12-14 13:12:24,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:12:24" (1/1) ... [2022-12-14 13:12:24,768 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:12:24" (1/1) ... [2022-12-14 13:12:24,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:12:24" (1/1) ... [2022-12-14 13:12:24,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:12:24,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:12:24,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:12:24,771 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:12:24,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:12:24" (1/1) ... [2022-12-14 13:12:24,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:12:24,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6857c5-a2c9-489e-bda0-7e3a369c180e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:12:24,794 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6857c5-a2c9-489e-bda0-7e3a369c180e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:12:24,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6857c5-a2c9-489e-bda0-7e3a369c180e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:12:24,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 13:12:24,829 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 13:12:24,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:12:24,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 13:12:24,829 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-14 13:12:24,830 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-14 13:12:24,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 13:12:24,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 13:12:24,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:12:24,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:12:24,831 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 13:12:24,923 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:12:24,924 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:12:25,046 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:12:25,051 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:12:25,051 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 13:12:25,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:12:25 BoogieIcfgContainer [2022-12-14 13:12:25,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:12:25,055 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:12:25,055 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:12:25,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:12:25,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:12:24" (1/3) ... [2022-12-14 13:12:25,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@301cb809 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:12:25, skipping insertion in model container [2022-12-14 13:12:25,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:12:24" (2/3) ... [2022-12-14 13:12:25,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@301cb809 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:12:25, skipping insertion in model container [2022-12-14 13:12:25,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:12:25" (3/3) ... [2022-12-14 13:12:25,059 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_neg.i [2022-12-14 13:12:25,066 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 13:12:25,074 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:12:25,074 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 13:12:25,074 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 13:12:25,108 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 13:12:25,131 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 13:12:25,142 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 66 transitions, 137 flow [2022-12-14 13:12:25,144 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 66 transitions, 137 flow [2022-12-14 13:12:25,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 66 transitions, 137 flow [2022-12-14 13:12:25,176 INFO L130 PetriNetUnfolder]: 1/65 cut-off events. [2022-12-14 13:12:25,177 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 13:12:25,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 65 events. 1/65 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. 0/63 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2022-12-14 13:12:25,181 INFO L119 LiptonReduction]: Number of co-enabled transitions 460 [2022-12-14 13:12:27,196 INFO L134 LiptonReduction]: Checked pairs total: 1136 [2022-12-14 13:12:27,196 INFO L136 LiptonReduction]: Total number of compositions: 64 [2022-12-14 13:12:27,202 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 14 transitions, 33 flow [2022-12-14 13:12:27,211 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 32 states, 30 states have (on average 1.7) 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) [2022-12-14 13:12:27,224 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:12:27,230 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2c89bcf3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:12:27,230 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 13:12:27,231 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 30 states have (on average 1.7) 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) [2022-12-14 13:12:27,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 13:12:27,235 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:12:27,236 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 13:12:27,236 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-14 13:12:27,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:12:27,240 INFO L85 PathProgramCache]: Analyzing trace with hash 229011775, now seen corresponding path program 1 times [2022-12-14 13:12:27,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:12:27,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836465003] [2022-12-14 13:12:27,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:12:27,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:12:27,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:12:27,346 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 13:12:27,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:12:27,388 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 13:12:27,390 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 13:12:27,391 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-14 13:12:27,393 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-14 13:12:27,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 13:12:27,395 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 13:12:27,400 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 13:12:27,400 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 13:12:27,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 01:12:27 BasicIcfg [2022-12-14 13:12:27,416 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 13:12:27,416 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 13:12:27,416 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 13:12:27,416 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 13:12:27,417 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:12:25" (3/4) ... [2022-12-14 13:12:27,418 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 13:12:27,448 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6857c5-a2c9-489e-bda0-7e3a369c180e/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 13:12:27,448 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 13:12:27,449 INFO L158 Benchmark]: Toolchain (without parser) took 3011.95ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 122.1MB in the beginning and 97.9MB in the end (delta: 24.2MB). Peak memory consumption was 57.2MB. Max. memory is 16.1GB. [2022-12-14 13:12:27,449 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 157.3MB. Free memory is still 132.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:12:27,450 INFO L158 Benchmark]: CACSL2BoogieTranslator took 287.91ms. Allocated memory is still 157.3MB. Free memory was 121.6MB in the beginning and 102.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 13:12:27,450 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.04ms. Allocated memory is still 157.3MB. Free memory was 102.7MB in the beginning and 101.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:12:27,451 INFO L158 Benchmark]: Boogie Preprocessor took 15.13ms. Allocated memory is still 157.3MB. Free memory was 101.1MB in the beginning and 99.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:12:27,451 INFO L158 Benchmark]: RCFGBuilder took 281.81ms. Allocated memory is still 157.3MB. Free memory was 99.5MB in the beginning and 87.0MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 13:12:27,452 INFO L158 Benchmark]: TraceAbstraction took 2361.09ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 86.4MB in the beginning and 100.0MB in the end (delta: -13.6MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2022-12-14 13:12:27,452 INFO L158 Benchmark]: Witness Printer took 31.96ms. Allocated memory is still 188.7MB. Free memory was 100.0MB in the beginning and 97.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:12:27,455 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 157.3MB. Free memory is still 132.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 287.91ms. Allocated memory is still 157.3MB. Free memory was 121.6MB in the beginning and 102.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.04ms. Allocated memory is still 157.3MB. Free memory was 102.7MB in the beginning and 101.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.13ms. Allocated memory is still 157.3MB. Free memory was 101.1MB in the beginning and 99.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 281.81ms. Allocated memory is still 157.3MB. Free memory was 99.5MB in the beginning and 87.0MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2361.09ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 86.4MB in the beginning and 100.0MB in the end (delta: -13.6MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * Witness Printer took 31.96ms. Allocated memory is still 188.7MB. Free memory was 100.0MB in the beginning and 97.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 69 PlacesBefore, 17 PlacesAfterwards, 66 TransitionsBefore, 14 TransitionsAfterwards, 460 CoEnabledTransitionPairs, 7 FixpointIterations, 30 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 64 TotalNumberOfCompositions, 1136 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 675, independent: 566, independent conditional: 0, independent unconditional: 566, dependent: 109, dependent conditional: 0, dependent unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 386, independent: 361, independent conditional: 0, independent unconditional: 361, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 386, independent: 335, independent conditional: 0, independent unconditional: 335, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 51, independent: 26, independent conditional: 0, independent unconditional: 26, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 100, independent: 53, independent conditional: 0, independent unconditional: 53, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 675, independent: 205, independent conditional: 0, independent unconditional: 205, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 386, unknown conditional: 0, unknown unconditional: 386] , Statistics on independence cache: Total cache size (in pairs): 40, Positive cache size: 27, Positive conditional cache size: 0, Positive unconditional cache size: 27, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 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={3:0}, arg={0:0}, D={4:0}, g=0, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L698] CALL 0 __VERIFIER_assert(!(g == 0)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, A={3:0}, arg={0:0}, cond=0, D={4:0}, g=0] - 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, 78 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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, 5 NumberOfCodeBlocks, 5 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! [2022-12-14 13:12:27,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6857c5-a2c9-489e-bda0-7e3a369c180e/bin/utaipan-gh47qXpMRh/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