./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 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd415-e3c5-4d28-be15-7848d2464f19/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd415-e3c5-4d28-be15-7848d2464f19/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd415-e3c5-4d28-be15-7848d2464f19/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd415-e3c5-4d28-be15-7848d2464f19/bin/utaipan-6cKwYrpEi9/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_b81dd415-e3c5-4d28-be15-7848d2464f19/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd415-e3c5-4d28-be15-7848d2464f19/bin/utaipan-6cKwYrpEi9 --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-6b4ec56 [2022-11-20 20:44:17,006 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:44:17,008 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:44:17,029 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:44:17,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:44:17,030 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:44:17,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:44:17,033 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:44:17,035 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:44:17,036 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:44:17,037 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:44:17,038 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:44:17,039 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:44:17,040 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:44:17,041 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:44:17,043 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:44:17,044 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:44:17,045 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:44:17,046 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:44:17,048 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:44:17,050 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:44:17,051 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:44:17,052 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:44:17,053 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:44:17,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:44:17,058 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:44:17,058 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:44:17,059 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:44:17,060 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:44:17,061 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:44:17,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:44:17,062 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:44:17,063 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:44:17,064 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:44:17,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:44:17,065 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:44:17,066 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:44:17,066 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:44:17,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:44:17,068 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:44:17,069 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:44:17,072 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd415-e3c5-4d28-be15-7848d2464f19/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-20 20:44:17,114 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:44:17,114 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:44:17,115 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:44:17,115 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:44:17,116 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:44:17,116 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:44:17,117 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:44:17,117 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:44:17,117 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:44:17,117 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 20:44:17,118 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:44:17,118 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:44:17,119 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 20:44:17,119 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 20:44:17,119 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:44:17,119 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 20:44:17,120 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 20:44:17,120 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 20:44:17,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:44:17,121 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 20:44:17,121 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 20:44:17,121 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 20:44:17,121 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:44:17,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:44:17,122 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:44:17,122 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:44:17,122 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 20:44:17,122 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:44:17,123 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:44:17,123 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:44:17,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:44:17,123 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:44:17,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:44:17,124 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:44:17,124 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 20:44:17,124 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:44:17,124 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:44:17,125 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 20:44:17,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 20:44:17,126 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:44:17,126 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:44:17,126 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_b81dd415-e3c5-4d28-be15-7848d2464f19/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd415-e3c5-4d28-be15-7848d2464f19/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fac19196210fd8dde96f5954c583dd6bd52f0c23546782896f7a0038bedd43c [2022-11-20 20:44:17,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:44:17,497 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:44:17,499 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:44:17,501 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:44:17,501 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:44:17,502 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd415-e3c5-4d28-be15-7848d2464f19/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2022-11-20 20:44:20,459 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:44:20,825 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:44:20,830 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd415-e3c5-4d28-be15-7848d2464f19/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2022-11-20 20:44:20,845 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd415-e3c5-4d28-be15-7848d2464f19/bin/utaipan-6cKwYrpEi9/data/0678d7a09/2eaa08bf4b2b49d1a8809bf6b4e7c5eb/FLAG528d35ec2 [2022-11-20 20:44:20,866 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd415-e3c5-4d28-be15-7848d2464f19/bin/utaipan-6cKwYrpEi9/data/0678d7a09/2eaa08bf4b2b49d1a8809bf6b4e7c5eb [2022-11-20 20:44:20,868 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:44:20,870 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:44:20,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:44:20,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:44:20,880 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:44:20,880 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:44:20" (1/1) ... [2022-11-20 20:44:20,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@749bedf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:44:20, skipping insertion in model container [2022-11-20 20:44:20,882 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:44:20" (1/1) ... [2022-11-20 20:44:20,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:44:20,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:44:21,154 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_b81dd415-e3c5-4d28-be15-7848d2464f19/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i[1097,1110] [2022-11-20 20:44:21,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:44:21,361 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 20:44:21,373 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_b81dd415-e3c5-4d28-be15-7848d2464f19/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i[1097,1110] [2022-11-20 20:44:21,396 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:44:21,428 INFO L208 MainTranslator]: Completed translation [2022-11-20 20:44:21,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:44:21 WrapperNode [2022-11-20 20:44:21,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 20:44:21,430 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 20:44:21,430 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 20:44:21,431 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 20:44:21,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:44:21" (1/1) ... [2022-11-20 20:44:21,450 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:44:21" (1/1) ... [2022-11-20 20:44:21,469 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2022-11-20 20:44:21,470 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 20:44:21,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 20:44:21,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 20:44:21,475 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 20:44:21,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:44:21" (1/1) ... [2022-11-20 20:44:21,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:44:21" (1/1) ... [2022-11-20 20:44:21,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:44:21" (1/1) ... [2022-11-20 20:44:21,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:44:21" (1/1) ... [2022-11-20 20:44:21,508 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:44:21" (1/1) ... [2022-11-20 20:44:21,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:44:21" (1/1) ... [2022-11-20 20:44:21,517 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:44:21" (1/1) ... [2022-11-20 20:44:21,524 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:44:21" (1/1) ... [2022-11-20 20:44:21,526 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 20:44:21,527 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 20:44:21,527 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 20:44:21,528 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 20:44:21,535 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:44:21" (1/1) ... [2022-11-20 20:44:21,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:44:21,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd415-e3c5-4d28-be15-7848d2464f19/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:44:21,567 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd415-e3c5-4d28-be15-7848d2464f19/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 20:44:21,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd415-e3c5-4d28-be15-7848d2464f19/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 20:44:21,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 20:44:21,618 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 20:44:21,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 20:44:21,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 20:44:21,619 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 20:44:21,619 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 20:44:21,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 20:44:21,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 20:44:21,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 20:44:21,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 20:44:21,621 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 20:44:21,744 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 20:44:21,746 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 20:44:21,924 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 20:44:21,930 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 20:44:21,930 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 20:44:21,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:44:21 BoogieIcfgContainer [2022-11-20 20:44:21,933 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 20:44:21,935 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 20:44:21,936 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 20:44:21,939 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 20:44:21,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:44:20" (1/3) ... [2022-11-20 20:44:21,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20a7935c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:44:21, skipping insertion in model container [2022-11-20 20:44:21,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:44:21" (2/3) ... [2022-11-20 20:44:21,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20a7935c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:44:21, skipping insertion in model container [2022-11-20 20:44:21,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:44:21" (3/3) ... [2022-11-20 20:44:21,954 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_neg.i [2022-11-20 20:44:21,963 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 20:44:21,990 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 20:44:21,990 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 20:44:21,991 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 20:44:22,036 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 20:44:22,069 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-20 20:44:22,083 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 66 transitions, 137 flow [2022-11-20 20:44:22,087 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 66 transitions, 137 flow [2022-11-20 20:44:22,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 66 transitions, 137 flow [2022-11-20 20:44:22,128 INFO L130 PetriNetUnfolder]: 1/65 cut-off events. [2022-11-20 20:44:22,129 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 20:44:22,133 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. [2022-11-20 20:44:22,134 INFO L119 LiptonReduction]: Number of co-enabled transitions 460 [2022-11-20 20:44:25,449 INFO L134 LiptonReduction]: Checked pairs total: 1177 [2022-11-20 20:44:25,449 INFO L136 LiptonReduction]: Total number of compositions: 65 [2022-11-20 20:44:25,461 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 14 transitions, 33 flow [2022-11-20 20:44:25,481 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) [2022-11-20 20:44:25,506 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 20:44:25,513 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;@1cfedb8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 20:44:25,514 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-20 20:44:25,516 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) [2022-11-20 20:44:25,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 20:44:25,521 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:44:25,522 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 20:44:25,522 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-20 20:44:25,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:44:25,530 INFO L85 PathProgramCache]: Analyzing trace with hash 229013664, now seen corresponding path program 1 times [2022-11-20 20:44:25,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:44:25,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599324930] [2022-11-20 20:44:25,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:44:25,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:44:25,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 20:44:25,704 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 20:44:25,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 20:44:25,776 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-20 20:44:25,778 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 20:44:25,779 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-20 20:44:25,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-11-20 20:44:25,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 20:44:25,785 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-20 20:44:25,792 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 20:44:25,792 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 20:44:25,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 08:44:25 BasicIcfg [2022-11-20 20:44:25,814 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 20:44:25,814 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 20:44:25,814 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 20:44:25,815 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 20:44:25,815 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:44:21" (3/4) ... [2022-11-20 20:44:25,817 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 20:44:25,873 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd415-e3c5-4d28-be15-7848d2464f19/bin/utaipan-6cKwYrpEi9/witness.graphml [2022-11-20 20:44:25,873 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 20:44:25,874 INFO L158 Benchmark]: Toolchain (without parser) took 5003.50ms. Allocated memory is still 182.5MB. Free memory was 149.3MB in the beginning and 67.7MB in the end (delta: 81.6MB). Peak memory consumption was 84.5MB. Max. memory is 16.1GB. [2022-11-20 20:44:25,874 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 132.1MB. Free memory was 100.6MB in the beginning and 100.5MB in the end (delta: 24.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 20:44:25,875 INFO L158 Benchmark]: CACSL2BoogieTranslator took 553.61ms. Allocated memory is still 182.5MB. Free memory was 149.1MB in the beginning and 129.4MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-20 20:44:25,875 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.72ms. Allocated memory is still 182.5MB. Free memory was 129.4MB in the beginning and 128.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 20:44:25,876 INFO L158 Benchmark]: Boogie Preprocessor took 56.15ms. Allocated memory is still 182.5MB. Free memory was 128.1MB in the beginning and 126.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 20:44:25,876 INFO L158 Benchmark]: RCFGBuilder took 405.50ms. Allocated memory is still 182.5MB. Free memory was 126.2MB in the beginning and 113.7MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 20:44:25,876 INFO L158 Benchmark]: TraceAbstraction took 3878.53ms. Allocated memory is still 182.5MB. Free memory was 112.6MB in the beginning and 69.8MB in the end (delta: 42.8MB). Peak memory consumption was 44.7MB. Max. memory is 16.1GB. [2022-11-20 20:44:25,877 INFO L158 Benchmark]: Witness Printer took 58.55ms. Allocated memory is still 182.5MB. Free memory was 69.8MB in the beginning and 67.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 20:44:25,884 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 132.1MB. Free memory was 100.6MB in the beginning and 100.5MB in the end (delta: 24.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 553.61ms. Allocated memory is still 182.5MB. Free memory was 149.1MB in the beginning and 129.4MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.72ms. Allocated memory is still 182.5MB. Free memory was 129.4MB in the beginning and 128.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 56.15ms. Allocated memory is still 182.5MB. Free memory was 128.1MB in the beginning and 126.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 405.50ms. Allocated memory is still 182.5MB. Free memory was 126.2MB in the beginning and 113.7MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3878.53ms. Allocated memory is still 182.5MB. Free memory was 112.6MB in the beginning and 69.8MB in the end (delta: 42.8MB). Peak memory consumption was 44.7MB. Max. memory is 16.1GB. * Witness Printer took 58.55ms. Allocated memory is still 182.5MB. Free memory was 69.8MB in the beginning and 67.7MB 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: 3.4s, 69 PlacesBefore, 17 PlacesAfterwards, 66 TransitionsBefore, 14 TransitionsAfterwards, 460 CoEnabledTransitionPairs, 7 FixpointIterations, 30 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 0 ChoiceCompositions, 65 TotalNumberOfCompositions, 1177 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 700, independent: 589, independent conditional: 0, independent unconditional: 589, dependent: 111, dependent conditional: 0, dependent unconditional: 111, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 386, independent: 362, independent conditional: 0, independent unconditional: 362, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 386, independent: 336, independent conditional: 0, independent unconditional: 336, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 50, independent: 26, independent conditional: 0, independent unconditional: 26, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 158, independent: 74, independent conditional: 0, independent unconditional: 74, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 700, independent: 227, independent conditional: 0, independent unconditional: 227, dependent: 87, dependent conditional: 0, dependent unconditional: 87, unknown: 386, unknown conditional: 0, unknown unconditional: 386] , Statistics on independence cache: Total cache size (in pairs): 43, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, 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: 3.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, 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, 0.1s 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! [2022-11-20 20:44:25,903 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b81dd415-e3c5-4d28-be15-7848d2464f19/bin/utaipan-6cKwYrpEi9/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